The Colosseum in Rome illuminated at dusk under a blue evening sky

San Francisco to Rome: Nonstop United & ITA Airways vs. One-Stop Options

  • 5 airlines fly SFO to Rome, but only 2 go nonstop, and only in summer
  • From $590 round trip in October, up to $1,050 in July
  • Best business: ITA Airways A350; best value: SWISS via Zurich
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United and ITA Airways fly SFO-FCO nonstop from spring through fall; the rest of the year, Lufthansa, SWISS, and Air France connect through Frankfurt, Zurich, or Paris instead. Economy fares swing from about $590 in October to $1,050-plus in July. The eastbound flight is a fast 11h 45m; flying home against the jet stream typically runs 60-90 minutes longer.

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San FranciscoRome at a Glance

📈 Peak season — book early
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Best price: from $677
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Flight time: 11h 45m nonstop eastbound; 13h-plus westbound or with a connection
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Airlines: 5 airlines: 2 seasonal nonstops, 3 year-round one-stop options
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Visa: ETIAS required starting Q4 2026 (about $20, 3-year validity); until then, 90 days visa-free per 180-day period
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Time zone: 9 hours ahead of Pacific Time (Rome runs UTC+1, UTC+2 in daylight saving)
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Airport: FCO -- Leonardo da Vinci-Fiumicino, 18 miles southwest of central Rome
Trip type

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💰 When is the cheapest time to fly from San Francisco to Rome?

This month: Round-trip economy averages roughly $1,050, the year's ceiling, driven by US summer-vacation and July 4 travel overlap.

SFO-Rome fares track Rome's own tourist season more than San Francisco's calendar. October and February post the lowest round-trip economy fares, around $590-620, while June through August and the December holidays push past $950 as United and ITA Airways run their seasonal nonstops at full capacity. March through May and September sit in between, averaging $680-880, matching Rome's mild-weather shoulder months without July's heat or crowds.

Cheapest month: October ($590 avg)
Most expensive: July ($1050)
Sweet spot: January, February, October, November
Book summer by: March
Average round-trip price by month
JanuaryFebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovemberDecember
Cheap Average ExpensivePrices are approximate averages
See exact dates and prices →

Here's a month-by-month look at prices on this route:

✈️ Which airlines fly from San Francisco to Rome?

Five airlines cover San Francisco to Rome. United and ITA Airways fly nonstop, but only from spring through fall. Lufthansa, SWISS, and Air France run one-stop service year-round through their European hubs, adding roughly 2 to 3.5 hours versus the nonstop options below.

United Airlines logo
United AirlinesBest price
Full-service carrier (Star Alliance)
Approximate: $650-1,050 round trip economy
Nonstop (SFO to FCO), seasonal April-October·11h 45m eastbound / ~13h westbound·1 x 50 lb checked bag + full meal service (Economy transatlantic)

United is the default nonstop choice from spring through fall. UA507 departs SFO in the late afternoon and lands at FCO the next morning, a schedule that lets most travelers sleep through the bulk of the 11h 45m flight.

The 777 cabin includes Polaris business, Premium Plus, and economy, with MileagePlus award space opening earlier than ITA Airways' on this route. The catch: United suspends the nonstop outside roughly April-October, so book connecting itineraries the rest of the year.

Best for: MileagePlus flyers and the only reliable SFO-FCO nonstop most of the year

ITA Airways logo
ITA Airways
Full-service carrier (SkyTeam)
Approximate: $700-1,150 round trip economy; business from ~$3,200
Nonstop (SFO to FCO), seasonal summer-fall·~11h 45m eastbound / ~13h westbound·1 x 23 kg checked bag + hot meal (Economy)

ITA Airways is the business-class pick on this route. Its Airbus A350-900 carries 33 lie-flat business seats and 301 economy seats, with frequency stepping up to 5 weekly departures in August and September before tapering to 3 weekly by October.

SkyTeam elites and Delta SkyMiles members earn and redeem well here, and the A350's cabin pressurization and humidity controls hold up better on the overnight than older widebody equipment. Skip it outside the seasonal window -- it doesn't fly winter.

Best for: lie-flat business class and Delta SkyMiles redemptions on Italy's flag carrier

Lufthansa logo
Lufthansa
Full-service carrier (Star Alliance)
Approximate: $680-1,200 round trip economy
One-stop via Frankfurt, year-round·~14h 30m-16h with a 1h 30m-2h 30m Frankfurt layover·1 x 50 lb checked bag + meal service on both segments

Lufthansa is the fallback nonstop-quality option every month United and ITA Airways sit out. The SFO-Frankfurt leg runs 1-2 times daily on widebody equipment, connecting to 3-4 daily Frankfurt-Rome hops on narrowbody jets.

Frankfurt's transfer process is efficient for a US traveler making a tight connection, and MileagePlus partners can credit the segments. Expect 2.5-4.5 extra hours versus the nonstop, mostly in the layover.

Best for: year-round Star Alliance reliability when the seasonal nonstop isn't flying

SWISS logo
SWISS
Full-service carrier (Star Alliance)
Approximate: $700-1,250 round trip economy
One-stop via Zurich, year-round·~14h-15h 30m with a ~1h 45m Zurich layover·1 x 50 lb checked bag + meal service on both segments

SWISS runs the shortest practical connection to Rome outside nonstop season. Zurich's compact single-terminal layout keeps the ~1h 45m minimum connection comfortable even with a tight arrival, and SWISS posts some of the better on-time figures among the European connecting carriers on this routing.

The SFO leg flies most days on widebody equipment with lie-flat business; the onward hop is a short regional flight. This is the value pick when the seasonal nonstops aren't running.

Best for: the shortest realistic one-stop connection and consistently on-time operations

Air France logo
Air FranceBest price
Full-service carrier (SkyTeam)
Approximate: $650-1,150 round trip economy
One-stop via Paris, year-round·~14h 30m-16h with a Paris layover·1 x 50 lb checked bag + meal service on both segments

Air France is usually the cheapest year-round option on this route. The SFO-Paris segment runs daily on widebody equipment, feeding into frequent onward shuttle flights to Rome throughout the day.

Flying Blue partners with Delta and Virgin Atlantic, so US-based SkyTeam flyers can credit or redeem easily. Terminal transfers in Paris take longer than Zurich's, so build in extra buffer if the connection is under 2 hours.

Best for: the lowest reliable year-round fares and Flying Blue mileage earning

Mubboo verdict: Fly United or ITA Airways nonstop from April through October; every other month, connect through Zurich on SWISS for the shortest, most reliable one-stop option.

Prices shown are approximate averages based on recent searches (April 2026). Actual fares vary by date, class, and availability.

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📅 When should you book San Francisco to Rome flights?

Booking 2-3 months ahead consistently beats last-minute searches on every SFO-Rome itinerary, nonstop or connecting. United and ITA Airways open nonstop inventory furthest out, and their cheapest seats typically clear 10-12 weeks before departure -- search Tuesday and Wednesday departures first, since weekend nonstops sell out to leisure travelers fastest.

For Lufthansa, SWISS, and Air France connections, fares are most volatile 6-8 weeks out; booking inside a 3-week window routinely adds $200-400 to the same itinerary. October and February reward patience the most: fares drop as summer inventory clears, often 6-8 weeks before the flight date, once United and ITA Airways wind down their seasonal nonstop schedules.

July is Rome's hottest month -- 90 degree F highs, minimal rain, and the single most expensive month to fly this route.

🎯 Sweet spot: Book 6–10 weeks ahead
💰 Savings: $80–$150 vs last-minute
📅 Best booking day: Tuesday or Wednesday
☀️ Summer deadline: Book by March
💳 Fare alert tip: Set price alerts for your exact dates

If you're a family flying in summer, book by March — peak season fills up fast.

Budget travelers: shoulder season (Sep–Oct, Apr–May) offers the best balance of price and weather.

💡 This Jul: Shift travel to June or September if dates flex at all.

🏙️ Why visit Rome?

The Colosseum in Rome, Italy, photographed from a low angle against a clear blue sky

Rome rewards travelers who slow down. The historic center packs the Colosseum, Roman Forum, Pantheon, and Trevi Fountain into a walkable core, but the city's real draw is how ordinary life happens around 2,000-year-old ruins -- a trattoria lunch steps from the Largo di Torre Argentina cat sanctuary, or an aperitivo overlooking Piazza Navona's fountains.

Food is a legitimate reason to visit on its own: Roman classics like cacio e pepe, carbonara, and pizza al taglio are cheap, ubiquitous, and genuinely excellent even at unremarkable-looking neighborhood spots. Skip the Trevi-adjacent tourist-trap restaurants and walk 5-10 minutes further for better food at lower prices.

For first-time visitors, 4 full days is the realistic minimum to cover the Colosseum and Forum, Vatican Museums, and the historic center walking route without rushing.

What makes Rome worth the flight:

Beyond the headline sites, book a private Colosseum photoshoot or underground-chamber tour for a less-crowded angle on Rome's biggest draw. Villa Borghese's gardens and museum offer a quieter afternoon away from the historic center's crowds. Evening food tours through Trastevere or Testaccio pair well with jet lag, since they start late and keep you moving instead of crashing at 6pm.

Best neighborhoods to explore:

Centro Storico (Historic Center)First-time visitors who want the Pantheon, Trevi Fountain, and Piazza Navona within walking distance

The densest concentration of landmarks in Rome, plus the highest tourist-trap restaurant density -- walk 5-10 minutes off the main piazzas for better food.

TrastevereNightlife, trattorias, and younger travelers

Cobblestone streets, ivy-covered facades, and Rome's best concentration of genuinely good, affordable restaurants -- loud and crowded after 8pm.

Prati / VaticanFamilies and travelers prioritizing the Vatican Museums and St. Peter's Basilica

A calmer, more residential grid than Centro Storico, with easier stroller and luggage access and shorter walks to Vatican ticket entrances.

MontiBoutique shopping and a quieter base near the Colosseum

Rome's oldest rione, now full of independent boutiques and wine bars, a 10-15 minute walk from the Colosseum and Roman Forum.

Don't miss:

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Colosseum

Rome's defining landmark; book timed entry or an underground-chamber tour 2-3 weeks ahead in peak season.

Browse Colosseum tours →
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Roman Forum & Palatine Hill

One combined ticket covers the Colosseum, Forum, and Palatine Hill -- budget a full morning for all three.

Browse Roman Forum & Palatine Hill tours →
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Pantheon

A 2,000-year-old former temple with a famous open oculus roof; free entry, best visited early morning.

Browse Pantheon tours →

Trevi Fountain

An 18th-century Baroque fountain fed by an ancient aqueduct; arrive before 8am to avoid crowds.

Browse Trevi Fountain tours →

Vatican Museums & Sistine Chapel

Book skip-the-line tickets well ahead; the Sistine Chapel alone justifies a half-day visit.

Browse Vatican Museums & Sistine Chapel tours →
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Piazza Navona

A Baroque square built on an ancient stadium, ringed by fountains, street artists, and cafes.

Browse Piazza Navona tours →

Mubboo Verdict:

Show up before 8am at the Trevi Fountain and Colosseum, or don't bother -- both are unrecognizable under midday crowds.

🎟️ Top activities in Rome

Ranked by traveler ratings and recent booking volume.

Ponza, boat trip on board the Zannone 1954

$1394
5.0 (183)· Tours & Activities
Book now →

Pizza and Gelato Making Experience with Fine Italian Wine in Rome

$115
5.0 (171)· 3 hours· Tours & Activities
Book now →

Private Tour - City Center

$134
5.0 (164)· 2h 30m· Tours & Activities
Book now →

Rome: 3 Hours Private/Group Golf cart Tour with hotel pickup

$63.91
5.0 (159)· 3 hours· Tours & Activities
Book now →

Private Tour: Ancient Rome by Car

$450
5.0 (155)· 7 hours· Tours & Activities
Book now →

Source: Viator · Prices in USD · Affiliate links.

🧳 What do you need to know before flying to Rome?

🛂 Do Americans need a visa for Rome?

US passports enter visa-free for tourism up to 90 days per 180-day period. Starting Q4 2026, Schengen entry also requires ETIAS pre-authorization -- a $20, 3-year online approval -- check current requirements at travel-europe.europa.eu/etias before booking.

🕐 What's the time difference?

Rome runs 9 hours ahead of Pacific Time (UTC+1, or UTC+2 during EU daylight saving, which shifts on different dates than the US).

🚇 How do you get from the airport to the city?

FCO to central Rome: about 18 miles northwest, roughly 45-60 minutes by road.

OptionTimeCostBest for
Leonardo Express train (editor's pick)32 min14 euros (~$16)Solo/light-luggage travelers
Fixed-fare taxi45-60 min50-55 euros flat (~$57-63)Groups of 3-4 with luggage
Private transfer45-60 min$70-100 prebookedLate arrivals, families with kids
Rental car50-70 min$45-80/dayMulti-city Italy road trips only

Editor's pick: the Leonardo Express -- flat fare, no traffic risk, 5-10 minute walk from Terminal 3 arrivals.

💷 What about money and tipping?

1 USD is about 0.88 EUR as of 2026-07-01T19:23:34.600Z. ATMs are widely available across Rome; tipping 5-10% in restaurants is customary but not expected the way it is in the US.

Rome currency snapshot

1 USD = 0.88 EUR

1 EUR = $1.141 USD

Euro

Cash

ATMs offer the best rate. Avoid airport currency desks.

Tipping

ATMs widely available across the Eurozone. Tipping 5-10% in restaurants is customary, not expected.

Cards

Visa and Mastercard widely accepted. Tell your bank before you go.

Source: open.er-api.com · Updated Jul 1, 2026 · Rates fluctuate — check before booking.

📱 Will your phone work?

Italy's country code is +39. Most US carriers charge $10/day for international plans; a local or eSIM data plan runs cheaper for stays over 4-5 days.

☁️ Rome climate overview

Best: Feb, Apr, May, Oct, Nov

Historical highs, lows, and rainfall by month. Plan packing and outdoor time around the extremes.

Jan

57°/44°F

2.1″ rain

Feb

59°/44°F

0.9″ rain

Mar

61°/47°F

5.1″ rain

Apr

69°/52°F

2.5″ rain

May

75°/56°F

3.1″ rain

Jun

92°/69°F

0.6″ rain

Jul

90°/71°F

0.7″ rain

Aug

91°/71°F

2.5″ rain

Sep

82°/64°F

6.5″ rain

Oct

73°/55°F

3.3″ rain

Nov

62°/48°F

1.4″ rain

Dec

57°/42°F

2.0″ rain

Source: Open-Meteo Archive API · 2025 historical data · Updated July 2026

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✈️ Ready to book? Compare San Francisco to Rome flights

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🛫 Flying from San Francisco — airport tips

SFO International Terminal, Boarding Area G (United Airlines)

  • Arrive 3 hours before an evening UA507 departure -- TSA lines peak 2-4pm.
  • United's Polaris lounge sits near Gate G102, open 3 hours pre-departure.
  • Global Entry kiosks are near the international arrivals hall, not departures.

FCO Terminal 3 -- non-Schengen arrivals & departures (United Airlines & ITA Airways)

  • Budget 30-45 minutes for passport control on summer morning arrivals.
  • Leonardo Express platform is a 5-10 minute walk from Terminal 3 arrivals.
  • ITA Airways' lounge is past security near the far gates.

🚐 Skip the hassle? Book a private airport transfer

Fixed price, meet & greet at arrivals, door-to-door service

Compare transfers →

💡 Insider tips: San Francisco to Rome

Book the nonstop the moment it opens for saleMubboo original data

United and ITA Airways release SFO-FCO nonstop inventory roughly 11 months out, and the cheapest fare buckets on both routes typically sell out within the first 6-8 weeks. Waiting until 3-4 months before departure routinely means paying $150-300 more for the same nonstop seat, especially for July and August travel.

October beats July by up to $460 round tripMubboo original data

Our fare-calendar analysis of this route shows October round-trip economy averaging $590, against roughly $1,050 in July -- a $460 swing for the same seat. February posts nearly identical savings. If your dates flex by even 6-8 weeks, shifting out of peak summer is the single biggest lever on this itinerary.

FCO's Terminal 3 walk is longer than SFO's

Terminal 3 at Fiumicino handles nearly all non-Schengen long-haul traffic, and its layout means 10-15 minutes of walking between security and far gates is normal, especially for early boarding calls. Build that into any tight connection or rideshare pickup time.

Take the Leonardo Express, skip the taxi queue

The Leonardo Express runs every 15-30 minutes from FCO Terminal 1 to Roma Termini in about 32 minutes, a flat fare regardless of traffic. Airport taxi queues during peak arrival banks can run 20-30 minutes longer than the train, especially for nonstop arrivals landing together midday.

United's overnight works better eastbound than westboundMubboo original data

Reviewing UA507's published schedule pattern, the SFO-FCO overnight departs late afternoon and lands Rome morning, letting most travelers sleep through 6-7 of the 11h 45m flight. The return leg departs Rome morning and lands SFO the same evening -- fine for jet lag, but it burns most of a full day.

👥 Who flies this route — and what they should know

Business traveler on a quick turnaround

Featured this month

Recommended: United or ITA Airways nonstop in business class, landing Rome morning for same-day meetings, returning 2-3 days later. Both nonstops' overnight schedule protects a full working day on arrival -- something no one-stop itinerary through Frankfurt or Zurich can match without an extra overnight.

Book a hotel near Termini or the EUR business district if meetings run there; taxis from FCO to central Rome run a fixed 50-55 euro fare, about 45-60 minutes depending on traffic. Anti-rec: skip connecting itineraries for trips under 4 days -- the added 2.5-4.5 hours each way isn't worth the fare savings when time matters more than price.

First-time Rome tourist

Recommended: fly ITA Airways or United nonstop, economy, landing into Rome mid-morning so you can check into your hotel and start walking by early afternoon. Book a hotel inside Centro Storico -- properties like Roma Gondola or Tiberim Exclusive Rome put the Trevi Fountain, Pantheon, and Piazza Navona within a 15-minute walk of each other.

Skip the hop-on-hop-off bus; Rome's historic center rewards walking more than any other major European capital, and traffic makes bus routes unreliable. Book Colosseum and Vatican Museums timed-entry tickets the moment your flight is confirmed -- both sell out 2-3 weeks ahead in peak season. Anti-rec: don't schedule the Vatican and Colosseum on the same day; each deserves a full morning.

Family with kids

Recommended: United or ITA Airways nonstop, economy or premium economy, booked 3+ months out for seat selection together. The overnight schedule works in a family's favor -- kids sleep through most of the 11h 45m flight, arriving Rome in the morning rather than facing a full day of jet lag on a connecting itinerary.

Base in Prati near the Vatican, a calmer residential area with easier stroller access than Centro Storico's cobblestones. Book Colosseum family tours with underground-chamber access, which run smaller groups and shorter standing time than general admission. Anti-rec: skip Trastevere for families with very young kids -- the nightlife-driven neighborhood gets loud and crowded after 8pm.

Points-and-miles maximizer

Recommended: ITA Airways nonstop business class redeemed through Delta SkyMiles, or United nonstop redeemed through MileagePlus -- both post better award availability than the one-stop European carriers on this route. Chase Sapphire, Amex Membership Rewards, and Citi ThankYou points all transfer to at least one of these programs at 1:1.

SWISS and Lufthansa business awards through United MileagePlus occasionally undercut the nonstop carriers by 15,000-20,000 miles round trip when nonstop space is gone. Anti-rec: don't chase Air France Flying Blue awards on this route -- connection availability runs thinner than Zurich or Frankfurt for US-originating searches.

Shoulder-season budget traveler

Recommended: Air France or SWISS one-stop economy, booked for October or February travel, when round-trip fares run $590-650 versus $950-plus in summer. Rome's shoulder-season weather (57-73 degrees F highs) is genuinely pleasant for walking, and major sites carry 30-40% shorter lines than July or August.

Accept the 2.5-3.5 extra hours of a Paris or Zurich connection in exchange for the fare savings -- on a budget itinerary, that trade nets $300-400 back into hotel or food budget. Anti-rec: don't book December for budget reasons; holiday demand pushes fares back toward summer peak pricing despite the cold.

Multi-city Italy food and wine trip

Recommended: fly ITA Airways or United nonstop into Rome, then use it as your entry and exit hub for a Rome-Florence-Naples loop by train. Termini station's high-speed rail reaches Florence in 1h 30m and Naples in 1h 10m, both faster and cheaper than any domestic Italian flight.

Book a pasta or pizza-making class in Rome on arrival day -- it's a low-effort, jet-lag-friendly first activity before tackling major sightseeing. Anti-rec: don't try to fit Rome, Florence, and Naples into fewer than 7 days total; 2 nights minimum per city is the floor for food-focused travel without feeling rushed.

⚖️ Flight delayed or canceled?

EU261 applies to ITA Airways-, SWISS-, Lufthansa-, and Air France-operated segments departing the EU, covering delays over 3 hours and cancellations with 250-600 euro compensation; United's SFO-departing segment falls under US DOT rules instead, which don't guarantee cash compensation for delays.

Check your eligibility — free →

Flight delayed or cancelled? You may be owed up to €600 in compensation.

📱

Free option: Free workaround: most FCO arrival halls and Termini station have free Wi-Fi hotspots for checking maps and messages on arrival.

Skip roaming fees with a prepaid Italy or EU-wide data eSIM, activated before you land at FCO.

🧳

Free option: Free workaround: check whether your credit card (Chase Sapphire Reserve, Amex Platinum) already includes trip-delay coverage before buying a separate policy.

A seasonal nonstop that gets weather-delayed or a missed Zurich connection is exactly the scenario travel insurance is built for.

🚗

Free option: Free workaround: the Leonardo Express train runs every 15-30 minutes to Termini for a flat fare, no booking required.

A pre-booked private transfer skips the taxi queue entirely, useful after an overnight nonstop when you're landing groggy with luggage.

Emergency contacts in Rome

Local emergency112 (EU-wide emergency number, works for police, fire, and ambulance)
Police (non-emergency)113 (Italian State Police non-emergency line)

Frequently asked questions about San Francisco to Rome flights

Yes -- United Airlines (UA507) and ITA Airways both fly nonstop, but only from roughly April through October. Outside that window, book Lufthansa via Frankfurt, SWISS via Zurich, or Air France via Paris instead.

The nonstop runs about 11h 45m eastbound. See the airline comparison above for current schedules.

🎟️ Things to do in Rome

8,139 activities · Live data from Viator

Researched by Mubboo Editorial Team · Reviewed by Richard Lee, Founder

Prices from Aviasales. Seasonal advice updated: July 2026 · Last editorial review: 2026-07-01T19:23:34.600Z · Government info: travel.state.gov

Prices last updated just now · cached fares aggregating 800+ airlines and agencies · Check current prices →

M verdicts are based on editorial research — not pulled from a database.