💰 When is the cheapest time to fly from San Francisco to Lisbon?
This month: Round-trip fares hold near $945, second only to July's peak.
Round-trip economy fares dip into the mid-$500s in February and climb past $980 in July, the widest seasonal swing of any San Francisco route to Portugal. Booking 6-10 weeks ahead and flying midweek captures most of the available savings across all five carriers.
📊 Price trends: San Francisco to Lisbon
Round-trip economy estimates across the next 12 months. Use the chart to spot the cheapest window before locking in dates.
Cheapest month
Jul · $342
Peak month
Jun · $424
Source: Aviasales · Prices are round-trip economy estimates · Updated May 2026
Here's a month-by-month look at prices on this route:
✈️ Which airlines fly from San Francisco to Lisbon?
Five airlines serve San Francisco to Lisbon, but only TAP Air Portugal flies nonstop — four times weekly on an Airbus A330-900neo. United, American, British Airways, and Delta each route through a home hub instead: Newark or Dulles, Philadelphia, London Heathrow, and JFK, adding 3-5 hours versus TAP's direct routing. Economy fares across all five cluster in a similar range depending on season, though TAP's nonstop usually matches or undercuts the one-stop options while saving hours of travel time. Points-and-miles travelers get the strongest case for a connection, since business-class redemptions on the one-stop carriers frequently price lower in miles than TAP's own program.
The only nonstop option, and usually the fastest door-to-door choice. TAP's A330-900neo flies SFO-LIS four times weekly, cutting hours versus every connection. Standard economy pitches 31 inches; EconomyXtra rows stretch to 34. Skip the base Discount fare if you're checking a bag — it's carry-on only. Business class lie-flat seats make TAP worth the premium on points redemptions. Skip TAP only if your dates fall outside its four weekly departures.
Best for: travelers who want zero connections and don't mind a 4x-weekly schedule
United's own aircraft on both legs keeps rebooking simple if the first flight runs late. United flies SFO-EWR or SFO-IAD, then its own seasonal EWR-LIS or IAD-LIS nonstop — no partner handoff. Basic economy skips seat selection and checked bags. Polaris business beats TAP's cabin on newer widebodies, though summer redemptions run high. Skip the IAD routing if your layover is under 90 minutes — Dulles's midfield concourses eat connection time.
Best for: MileagePlus loyalists wanting SFO as the home hub for both legs
American's Philadelphia hub turned year-round makes this the shortest one-stop option. SFO-PHL runs about 5h15m, then AA258 covers PHL-LIS nonstop in roughly 7 hours — tighter than United's or Delta's routings. Flagship Business trades TAP's newer cabin for a larger connecting network. Basic Economy blocks seat selection and free bags. Skip Basic Economy if you're checking luggage — the fee erases any fare savings.
Best for: East Coast layover fans and AAdvantage members
Same-terminal connection at Heathrow is the sleeper advantage here. BA284 lands SFO-LHR passengers at Terminal 5, and the LIS continuation also departs T5 — no immigration line, just a train between piers. Avios pricing often beats American's chart for business class. The tradeoff is Heathrow's congestion adding delay risk. Skip this routing during summer's frequent Heathrow slot congestion if your connection runs under two hours.
Best for: Avios redemptions and a possible London stopover
Delta's own JFK-LIS nonstop means no partner handoff, departing JFK near 8 PM and landing Lisbon around 7 AM. SFO-JFK runs about 5h30m, so it's a long travel day on one airline's app for rebooking. Delta One beats TAP's angled-flat seat on this routing. Skip Delta if a five-hour West Coast redeye before an overnight transatlantic leg doesn't work for you.
Best for: SkyMiles members and West Coast flyers okay with a redeye
Mubboo verdict: TAP Air Portugal's nonstop wins on time and simplicity whenever it's available; book a one-stop connection only if your dates miss its four weekly departures or you're chasing points.
Prices shown are approximate averages based on recent searches (April 2026). Actual fares vary by date, class, and availability.
🎯 Ready to compare flights?
We compare prices from airlines and travel platforms so you can find the best deal.
Compare all flights →📅 When should you book San Francisco to Lisbon flights?
Book this route six to ten weeks before departure for the best mix of availability and price, and lean toward Tuesday or Wednesday departures — weekend fares run 10-20% higher across all five carriers. TAP's four-weekly nonstop schedule means popular dates around holidays and shoulder-season weekends sell out its cheapest fare buckets first, so travelers set on the nonstop should book on the earlier end of that window. One-stop fares stay more flexible closer to departure since seat inventory spans two flights. February and November consistently price lowest; June through August and the December holidays price highest, sometimes by $300-400 round trip.
Stays hot near 87°F, with Lisbon crowded and many locals away on their own holiday.
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 Aug: Book Tuesday or Wednesday departures to shave 10-15% off fares.
🏙️ Why visit Lisbon?
Lisbon rewards a slower pace than most European capitals — steep hills built for trams, pastel buildings stacked above the Tagus River, and a food scene built around bacalhau and fresh seafood. Belém Tower and Jerónimos Monastery anchor the riverside district with UNESCO-listed 16th-century architecture, while Alfama's lanes still run on Fado music after dark. A day trip to Sintra's fog-draped Pena Palace is close enough for a half-day round trip. Locals and visiting food writers point travelers toward Mercado da Ribeira's Time Out Market for a single-stop sampling of the city's best kitchens. May through October brings warm, dry weather; November through February brings the year's heaviest rain.
What makes Lisbon worth the flight:
Ride Tram 28 through Alfama's tightest curves before midday crowds arrive, then walk to Praça do Comércio for the city's grandest riverside square. Belém's monastery and tower pair well with a pastel de nata stop at the original bakery nearby. Sintra's Pena Palace makes the single best day trip from the city center. Save LX Factory's converted warehouses for an evening of Lisbon's newer creative scene.
Best neighborhoods to explore:
Lisbon's medieval quarter survived the 1755 earthquake mostly intact, leaving narrow lanes and stairways that Tram 28 climbs daily. Fado houses fill after 9 PM.
The rebuilt 18th-century grid anchors Praça do Comércio and Rua Augusta's pedestrian shopping — the flattest terrain in the city center.
Home to Belém Tower and Jerónimos Monastery, plus the original Pastéis de Belém bakery — a tram ride from central Lisbon, not walking distance.
Leafy streets and independent coffee shops make this the pick for stays over a week, with apartment rentals like Madragoa's studios nearby.
Don't miss:
Belém Tower
16th-century fortress guarding the Tagus, UNESCO-listed since 1983 — climb the narrow spiral stairs for river views.
Browse Belém Tower tours →Jerónimos Monastery
Manueline-style cloisters built from overseas spice-trade wealth; Vasco da Gama's tomb sits inside.
Browse Jerónimos Monastery tours →Tram 28 through Alfama
Century-old wooden trams climb grades steep enough that standing riders brace against the turns.
Browse Tram 28 through Alfama tours →Sintra day trip (Pena Palace)
A 40-minute train from Rossio station reaches Portugal's most photographed palace and its fog-draped hills.
Browse Sintra day trip (Pena Palace) tours →Time Out Market (Mercado da Ribeira)
Dozens of Lisbon's best kitchens under one roof — a faster sampler than a multi-restaurant crawl.
Browse Time Out Market (Mercado da Ribeira) tours →São Jorge Castle
Hilltop Moorish-era ramparts overlooking the entire city — best visited near sunset for the light.
Browse São Jorge Castle tours →Mubboo Verdict:
Lisbon rewards travelers who trade a rental car for tram tickets and walking shoes. The hills, river views, and Fado bars are the whole point — don't rush it.
🎟️ Top activities in Lisbon
Ranked by traveler ratings and recent booking volume.
Sintra Private Tour 2 Palaces Roca Cascais Tailored up to 7
$581From Lisbon: Arrábida & Sesimbra Private Day Trip – Wine & Nature
$251Discover the hills and historic neighborhoods of Lisbon in tuk tuk
$209Source: Viator · Prices in USD · Affiliate links.
🧳 What do you need to know before flying to Lisbon?
🛂 Do Americans need a visa for Lisbon?
US passport holders don't need a visa for stays under 90 days in the Schengen area, which includes Portugal [GOV]. The EU's Entry/Exit System is rolling out at Schengen borders through 2026, and the ETIAS travel-authorization requirement is expected to follow — confirm current rules at travel.state.gov before booking.
🕐 What's the time difference?
Lisbon runs on Western European Time, roughly 8 hours ahead of San Francisco for most of the year. The gap narrows to 7 hours or widens to 9 for about a week each March and November, when US and EU daylight-saving changes fall on different Sundays.
🚇 How do you get from the airport to the city?
Humberto Delgado Airport (LIS) sits about 4 miles north of central Lisbon.
| Option | Time | Cost | Best for |
|---|---|---|---|
| Metro Red Line ✅ | 20-25 min to Baixa-Chiado | €1.65 (Viva Viagem card) | Light luggage, budget travelers — editor's pick |
| Aerobus shuttle | 25-35 min | €4 one-way | Direct downtown hotel drop-off |
| Taxi / Uber / Bolt | 15-25 min | €15-20 | Late arrivals, groups, heavy luggage |
| Private transfer | 15-25 min | €25-40 prebooked | Families, jet-lagged arrivals wanting zero decisions |
Editor's pick: the Metro Red Line if you're traveling light — fastest and cheapest outside rush hour.
💷 What about money and tipping?
Portugal uses the euro. As of 2026, $1 buys about €0.88 [A]. ATMs are widely available across Lisbon, and tipping 5-10% in restaurants is customary but not expected the way it is in the US.
Lisbon currency snapshot
1 USD = 0.87 EUR
1 EUR = $1.151 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 Aug 1, 2026 · Rates fluctuate — check before booking.
📱 Will your phone work?
US carriers' international plans work in Portugal but rack up per-day roaming fees fast on an 11-hour-flight trip. A Portugal or EU-wide eSIM installed before departure activates the moment you land and typically costs less than a week of carrier roaming.
☁️ Lisbon climate overview
Best: Feb, Apr, May, Jun, Sep, OctHistorical highs, lows, and rainfall by month. Plan packing and outdoor time around the extremes.
Jan
61°/51°F
6.3″ rain
Feb
60°/51°F
1.3″ rain
Mar
60°/51°F
6.7″ rain
Apr
65°/56°F
4.0″ rain
May
74°/58°F
1.3″ rain
Jun
82°/64°F
0.1″ rain
Jul
83°/66°F
0.1″ rain
Aug
87°/66°F
0.0″ rain
Sep
77°/62°F
0.6″ rain
Oct
74°/63°F
1.9″ rain
Nov
62°/56°F
7.3″ rain
Dec
58°/50°F
3.5″ rain
Source: Open-Meteo Archive API · 2025 historical data · Updated July 2026
Ready to lock in your fare? Search live prices below:
✈️ Ready to book? Compare San Francisco to Lisbon flights
Search flights →🛫 Flying from San Francisco — airport tips
SFO International Terminal G — TAP Air Portugal (TAP Air Portugal)
- Check-in opens 3 hours before the 4x-weekly nonstop departure
- TSA PreCheck lane sits past the international check-in row
- Nonstop typically boards from the G95-G102 gate cluster
SFO International Terminal G — British Airways & American (British Airways / American Airlines)
- Both oneworld carriers share counters near the north end of Terminal G
- Priority lanes exist for AAdvantage Executive Platinum and BA Gold
- Connecting bags check through to Lisbon on a single boarding pass
Humberto Delgado Airport (LIS) Terminal 1 — arrivals (TAP Air Portugal / partner airlines)
- Non-EU passport lines sit at the far end of the arrivals hall
- Metro Red Line's Aeroporto station is a 5-minute walk from baggage claim
- Uber and Bolt pickup is on the departures level, one floor up
🚐 Skip the hassle? Book a private airport transfer
Fixed price, meet & greet at arrivals, door-to-door service
💡 Insider tips: San Francisco to Lisbon
TAP's nonstop only runs four days a weekMubboo original data
Check TAP's schedule before locking in dates — the SFO-LIS nonstop operates roughly four times weekly, not daily, on days that shift slightly by season. Missing that window means comparing four one-stop alternatives instead, each adding 3-5 hours. Confirm exact days on TAP's site before building an itinerary around fixed vacation dates.
Skip the Discount fare if you're checking a bagMubboo original data
TAP's cheapest advertised fare is carry-on only. Checking even one bag on a Discount ticket costs more at the airport than upgrading to a Classic fare at booking, which bundles a checked bag with more flexible change rules. Compare the total price before assuming the lowest sticker fare is the better deal.
The Heathrow connection skips an immigration lineMubboo original data
British Airways' SFO-LHR-LIS routing keeps both legs in Terminal 5, so passengers connecting onward to Lisbon never clear UK immigration — just a short train between piers. That shaves 20-30 minutes off a connection that would otherwise require a full passport check.
Bread and olives at the table aren't free
Portuguese restaurants routinely bring bread, olives, or cheese to the table before you order — it's a paid starter called couvert, not a free amenity. Decline it upfront if you'd rather not pay a few extra euros per person, no explanation needed.
Book six to ten weeks out and fly midweekMubboo original data
Tuesday and Wednesday departures price consistently lower than weekend flights across all five carriers on this route. Combine that with a six-to-ten-week booking window for the strongest mix of fare and seat availability, especially for TAP's limited weekly nonstop.
Reserve dinner for 8 PM or later
Lisbon kitchens hit their stride after 8 PM; showing up at 6 for dinner often means an empty room and a limited menu. Locals eat late, and popular spots fill their 8-10 PM reservation slots first.
👥 Who flies this route — and what they should know
Budget backpacker solo traveler
Featured this monthRecommended: any one-stop economy fare booked 6-10 weeks out, midweek departure. A one-stop itinerary on United, American, or Delta often undercuts TAP's nonstop by $40-$80 in shoulder months, and the extra layover doubles as a stretch break on an 11-hour-plus journey. Stay in Alfama or Mouraria for hostels near Tram 28 and Fado bars. Mubboo Pick: take the savings and spend it on a Sintra day trip — the train from Rossio station costs a few euros and beats any pre-packaged tour. Skip taxis entirely; a reloadable Viva Viagem card covers Metro, tram, and funicular rides. Avoid August if budget matters — it's the priciest, most crowded month to fly and to sleep.
First-time Lisbon culture seeker
Recommended: TAP Air Portugal nonstop, economy, evening SFO departure landing in Lisbon the next afternoon. Landing nonstop leaves a full day still ahead instead of losing hours to a European layover. Base yourself in Baixa or Chiado — flat, central, walking distance to Praça do Comércio. Ride Tram 28 through Alfama on day one before crowds build, then save Belém Tower and Jerónimos Monastery for an early morning visit. Mubboo Pick: book the TAP nonstop and a Baixa hotel — you'll cover more ground in three days than most itineraries manage in five. Skip renting a car; Lisbon's hills favor walking and the Metro. Budget a half-day for the Sintra train over a rushed group tour.
Points and miles business class flyer
Recommended: United Polaris or Delta One business class via a Star Alliance or SkyTeam redemption, timed to avoid summer peak-season award pricing. TAP's business cabin is comfortable but older than United's newest Polaris suites or Delta's One product on this connecting routing. British Airways Avios redemptions frequently price lower than American's AAdvantage chart for the same Heathrow connection. Mubboo Pick: transfer Chase Ultimate Rewards or Amex Membership Rewards points to a partner program before booking — transfer partners have historically undercut booking directly through the operating carrier's own program. Skip peak summer redemption dates; award availability on this route tightens from June through August.
Family spring break traveler
Recommended: TAP Air Portugal nonstop, economy or EconomyXtra for extra legroom, departing Friday or Saturday to bookend a school-break week. One nonstop leg each way means fewer meltdowns than a connection with tight layovers in unfamiliar airports. April and May bring warm, dry weather in the mid-70s without summer's crowds or prices. Mubboo Pick: book EconomyXtra seats for anyone over age eight — the extra three inches of pitch matters on an 11-hour flight. Stay near Belém for stroller-friendly sidewalks, then budget a full day for Sintra's Pena Palace, which kids consistently rate as the trip highlight. Skip Alfama's steepest lanes with a stroller; take Tram 28 instead.
Remote-work digital nomad
Recommended: TAP nonstop economy booked with an open return, landing on a Tuesday or Wednesday to settle in before a Monday work week. Lisbon's Príncipe Real and Madragoa neighborhoods pair reliable fiber-speed WiFi with month-long apartment stays well under San Francisco rents. Mubboo Pick: install a Portugal eSIM before departure so you have working data the moment you land, rather than hunting for airport WiFi during a jet-lagged first afternoon. Portugal's 90-day Schengen allowance covers a full quarter without a visa application, though longer stays require Portugal's D8 digital nomad visa filed in advance. Skip the touristy Baixa cafes for daytime work — Alameda and Anjos have cheaper coworking spaces with fewer surprises.
Romantic anniversary couple
Recommended: TAP Air Portugal business class or EconomyXtra, timed for shoulder season in May, September, or October when weather is warm but crowds thin. A private Sintra day trip covering Pena Palace and Cabo da Roca makes a strong anniversary-day splurge without a group tour's rigid schedule. Mubboo Pick: book a Tagus riverfront hotel and request a sunset table for the return — Lisbon's golden-hour light over the river is the city's signature moment. Reserve dinner for 8 PM or later to match local dining hours instead of eating alone in an empty restaurant at six. Skip peak summer for this trip; the heat and crowds in July and August work against a relaxed pace.
⚖️ Flight delayed or canceled?
Because TAP Air Portugal is an EU carrier and any one-stop itinerary's Lisbon-bound leg departs an EU airport, EU261 applies: delays over 3 hours or cancellations can trigger €250-€600 compensation per passenger, regardless of the ticketing airline.
Flight delayed or cancelled? You may be owed up to €600 in compensation.
📱
Free option: Most Lisbon hotels and cafes offer free WiFi, so a physical SIM or eSIM is really only essential for the airport transfer and sightseeing days.
Skip the airport SIM kiosk line entirely. An eSIM installs before you leave San Francisco and activates the moment you land at Humberto Delgado, so Uber, maps, and translation apps all work immediately.
🛡️
Free option: Check whether an existing credit card like Chase Sapphire or Amex Platinum already includes trip-delay and medical coverage before buying a standalone policy.
TAP's four-weekly nonstop schedule leaves less room to rebook if you miss a flight. A policy covering trip interruption and medical costs matters more on a single weekly-frequency route than on a daily one.
🚐
Free option: The Metro Red Line from the airport to Baixa-Chiado costs about €1.65 and takes 25 minutes if you're traveling light.
Skip the arrivals-hall taxi line after an 11-hour flight. A pre-booked private transfer meets you at baggage claim and runs a fixed price to any central Lisbon neighborhood.
Emergency contacts in Lisbon
Frequently asked questions about San Francisco to Lisbon flights
Yes — TAP Air Portugal is the only airline flying nonstop between San Francisco and Lisbon. The route runs four times weekly on an Airbus A330-900neo, taking about 11 hours eastbound. Every other carrier requires a connection through a home hub, adding 3-5 hours. If your dates fall within TAP's weekly schedule, the nonstop is almost always the faster, simpler choice.
Flights from San Francisco
Researched by Mubboo Editorial Team · Reviewed by Richard Lee, Founder
Prices from Aviasales. Seasonal advice updated: August 2026 · Last editorial review: 2026-07-01T18:56:50.203Z · 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.