💰 When is the cheapest time to fly from San Francisco to Dublin?
This month: Round trip averages about $790, still firmly in peak territory despite the slight dip from July.
Fares bottom out in February and November, climb hard through St. Patrick's week in mid-March, and peak from June through August alongside US summer break.
📊 Price trends: San Francisco to Dublin
Round-trip economy estimates across the next 12 months. Use the chart to spot the cheapest window before locking in dates.
Cheapest month
May · $307
Peak month
Jun · $308
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 Dublin?
Aer Lingus is the only carrier flying its own metal nonstop; American and British Airways sell seats on that same aircraft under a transatlantic joint-business codeshare. United and Delta both require one stop, typically undercutting the nonstop fare by $30-$80 in exchange for 2.5-4 extra hours.
Book this one. Aer Lingus is the only airline flying nonstop metal between SFO and Dublin — an Airbus A330, seven times weekly, departing SFO in the early evening and landing in Dublin by mid-morning local time. Economy pitch is a tight 31 inches for an overnight flight, but the flat-bed business cabin ($2,400-$3,600 round trip) rivals legacy European carriers at a lower price. Skip booking through the American or British Airways codeshare if Aer Club status credit matters — book direct on aerlingus.com.
Best for: nonstop convenience and flat-bed business class
Use this for AAdvantage miles, not price. American doesn't fly its own metal to Dublin, but its transatlantic joint business lets you book the identical Aer Lingus nonstop under an AA flight number, earning AAdvantage miles and elite-qualifying dollars. The Philadelphia one-stop adds roughly 3.5 hours for zero benefit unless PHL is your home airport. AAdvantage award seats on the Aer Lingus codeshare open up more often in shoulder months like April and September than during summer peak — check 11 months out.
Best for: AAdvantage elites and codeshare award seats
Pick this for a free London stopover. British Airways routes SFO-Dublin travelers through London Heathrow, adding a connection but opening a free stopover on a multi-city itinerary. The LHR-DUB hop is a quick 1h 15m shuttle flight BA runs a dozen times daily. Avios redemptions on this combination often price cheaper than cash fares in shoulder season, and Heathrow Terminal 5's oneworld transfer process is famously smooth. Skip it if your only goal is speed — Aer Lingus's nonstop beats this by roughly three hours.
Best for: Avios redemptions and a London stopover
Best if SFO is your home airport and you already fly United for work. United connects through Washington Dulles or Newark, both roughly 3.5 hours longer than Aer Lingus's nonstop, but MileagePlus elites get priority boarding and free bag waivers that offset the extra connection time. Fares often undercut Aer Lingus by $40-$60 in shoulder months. The Dulles routing has the tighter connection window; Newark gives more buffer if your SFO departure runs late.
Best for: MileagePlus loyalists departing SFO's home hub
Best for the cheapest reliable connecting fare. Delta's Boston and JFK connections consistently price $30-$80 below Aer Lingus's nonstop in economy, and Delta One business-class upgrades on the transatlantic leg are some of the better-value redemptions on this route. The tradeoff is close to 13 hours of total travel time versus the nonstop's 10h 10m. Skip Delta if you're checking bags on a tight connection — Boston's international arrivals process can run 50 minutes for re-check.
Best for: cheapest connecting fares and Delta One upgrades
Mubboo verdict: Fly Aer Lingus nonstop — book directly or via the American/British Airways codeshare. Skip the one-stop connections unless you're chasing status miles or a specific loyalty program's business-class award.
Prices shown are approximate averages based on recent searches (April 2026). Actual fares vary by date, class, and availability.
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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 Dublin flights?
Book Aer Lingus's nonstop 3-4 months out for the best economy fares — prices on this route typically bottom out around 90 days before departure, then climb sharply inside the 21-day mark. Tuesday and Wednesday departures run $40-$70 cheaper than Friday-through-Sunday. Avoid booking around St. Patrick's Day (March 14-17) or the July 4-Labor Day stretch, when fares jump 30-40% above baseline. February and November are the two cheapest months to fly, both outside Irish school holidays and US summer break. If you're flexible, a Tuesday departure in late February against a Wednesday return is the lowest fare combination we found across all five carriers.
August stays warm and busy, though fares ease slightly from July's peak as US school-return travel starts pulling demand elsewhere.
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: Late August offers the best value inside peak season.
🏙️ Why visit Dublin?
Dublin packs literary history, pub culture, and a walkable city center into a destination small enough to see the highlights in three days but rich enough to justify a week. The River Liffey splits the city into north and south, with Georgian architecture, Trinity College, and Temple Bar's nightlife on the south side, and a grittier, more local feel to the north. Locals rave about traditional music sessions in smaller pubs away from Temple Bar's tourist crowds — ask a bartender for a recommendation rather than following the guidebook circuit. Safety is generally good; the main risk is pickpocketing in crowded tourist zones, the same caution you'd apply in any major city. Getting around doesn't require a car: buses, the Luas tram, and DART trains cover the city and its coastal suburbs on a single Leap Card, and the compact center rewards walking.
What makes Dublin worth the flight:
Highlights range from Trinity College's Book of Kells and the Guinness Storehouse to day trips into the Wicklow Mountains and, farther afield, the Cliffs of Moher — each easily bookable from the city center.
Best neighborhoods to explore:
Dublin's most touristed core — Trinity College and the Book of Kells sit a 5-minute walk from Temple Bar's pubs and cobblestone streets. Convenient, but the busiest and priciest lodging zone.
Georgian architecture and a large central park define this area just south of Trinity. O'Neills Victorian Pub Townhouse sits in this pocket — walkable to everything without Temple Bar's noise.
Dublin's tech-company district along the river, with newer hotels and easy access to airport bus routes — a practical base for a short business trip.
A 15-20 minute tram ride from the center, with lower nightly rates and a local, less touristy feel — a good fit for a month-long stay. Donnybrook Townhouse's apartments sit nearby.
Don't miss:
Trinity College & the Book of Kells
Ireland's oldest university and its illuminated medieval manuscript — from $110 for timed entry.
Browse Trinity College & the Book of Kells tours →Guinness Storehouse
Seven floors ending in a rooftop bar with 360° city views — Dublin's single most-visited paid attraction.
Browse Guinness Storehouse tours →Wicklow Mountains, Glendalough & Powerscourt day tour
A full-day countryside escape from the city — from $657 per group, cheaper split among several travelers.
Browse Wicklow Mountains, Glendalough & Powerscourt day tour tours →Cliffs of Moher tour
A longer day trip west to Ireland's most dramatic coastline — from $1,627 per group, best split among 3-4 travelers.
Browse Cliffs of Moher tour tours →Dublin pub crawl & traditional music tour
A guided route past the city's real music pubs, skipping the Temple Bar tourist traps — from $279 per group.
Browse Dublin pub crawl & traditional music tour tours →Mubboo Verdict:
Three full days covers Dublin's core sights; add two more for a Wicklow Mountains or Cliffs of Moher day trip. Base yourself south of the river near Trinity College for the best walk-everywhere convenience.
🎟️ Top activities in Dublin
Ranked by traveler ratings and recent booking volume.
Dublin LGBTQ Pride Historical and Cultural Walking Tour
$27.89Best Dublin City & Bay - true Dubliner guide Eamonn guaranteed
$784Day Tour from Dublin: Wicklow Mountains, Glendalough, Powerscourt
$657Best Cliffs of Moher tour - true Irishman guide Éamonn guaranteed
$1627Dublin Airport Transfers: Luxury Transfer To/From DUB Per Vehicle
$174Source: Viator · Prices in USD · Affiliate links.
🧳 What do you need to know before flying to Dublin?
🛂 Do Americans need a visa for Dublin?
[GOV] US passport holders enter Ireland visa-free for stays up to 90 days — no ESTA or ETIAS required, since Ireland sits outside the Schengen Area and hasn't implemented an EU-style entry authorization system. Confirm current requirements at travel.state.gov before booking; the State Department currently rates Ireland Level 1, 'Exercise Normal Precautions.'
🕐 What's the time difference?
Dublin runs 8 hours ahead of Pacific Time nearly year-round, since both the US and Ireland shift daylight saving time on a similar schedule. A 6pm SFO departure lands around 11:30am Dublin time the next day; there's no meaningful jet lag adjustment needed for a trip under a week.
🚇 How do you get from the airport to the city?
Dublin Airport (DUB) to city center: about 7 miles, 15-25 minutes by road.
| Option | Time | Cost | Best for |
|---|---|---|---|
| Aircoach / Dublin Bus 747 ✅ | 25-35 min | €7-€10 (about $8-$11) | Solo travelers, light packers |
| Taxi | 15-25 min | €25-€35 (about $28-$40) | Groups of 2-3, late arrivals |
| Private transfer | 15-25 min | ~$174 per vehicle | Groups of 3-4, redeye arrivals |
| Luas tram + walk | 35-45 min | €2.50-€3.30 (about $3-$4) | Budget travelers near a Luas stop |
Editor's pick: the Aircoach or 747 bus — the cheapest reliable option, running every 10-15 minutes with multiple city-center stops.
💷 What about money and tipping?
Ireland uses the euro, not the British pound, despite sharing a border with Northern Ireland (which does use pounds). As of 2026, $1 converts to roughly €0.88. ATMs are widely available across Dublin, and tipping 5-10% in restaurants is appreciated but not expected the way it is in the US.
Dublin 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 phones with international roaming work in Ireland on the same GSM networks; T-Mobile, AT&T, and Verizon international day-pass plans all cover Ireland at no extra sign-up. For dedicated data, a local eSIM from Three or Vodafone Ireland runs cheaper than most US carrier roaming rates for stays over a week.
☁️ Dublin climate overview
Best: May, Jun, AugHistorical highs, lows, and rainfall by month. Plan packing and outdoor time around the extremes.
Jan
46°/38°F
4.0″ rain
Feb
48°/41°F
2.9″ rain
Mar
53°/43°F
0.9″ rain
Apr
56°/45°F
5.5″ rain
May
61°/49°F
1.7″ rain
Jun
65°/54°F
4.5″ rain
Jul
68°/57°F
4.8″ rain
Aug
68°/57°F
2.1″ rain
Sep
62°/51°F
5.9″ rain
Oct
57°/49°F
4.0″ rain
Nov
52°/44°F
5.4″ rain
Dec
50°/44°F
4.3″ rain
Source: Open-Meteo Archive API · 2025 historical data · Updated August 2026
Ready to lock in your fare? Search live prices below:
✈️ Ready to book? Compare San Francisco to Dublin flights
Search flights →🛫 Flying from San Francisco — airport tips
SFO International Terminal G — Aer Lingus, American, British Airways gates (Aer Lingus / American / British Airways)
- Priority security lane opens 3 hours before departure for Business/First and elite frequent flyers.
- Global Entry kiosks are in the arrivals hall — not useful outbound, but they speed up your eventual return.
- The Centurion Lounge and Star Alliance lounges both accept same-day connecting boarding passes.
Dublin Airport Terminal 2 — Aer Lingus hub (Aer Lingus)
- US Preclearance for SFO-bound flights operates from a dedicated area — arrive 3 hours before departure during summer.
- The Dublin Airport Authority app shows real-time preclearance queue wait times.
- Duty-free sits airside of preclearance, so shop before you clear US customs, not after.
🚐 Skip the hassle? Book a private airport transfer
Fixed price, meet & greet at arrivals, door-to-door service
💡 Insider tips: San Francisco to Dublin
Dublin Airport's US Preclearance Turns Your Return Flight Into a Domestic ArrivalMubboo original data
Dublin is one of the few European airports with full US Customs and Border Protection preclearance, meaning you clear US immigration and customs before boarding your SFO-bound flight, not after landing. That means arriving back at SFO through the domestic terminal, often faster than a typical international arrival with a full customs queue. Budget extra time at DUB instead — preclearance security can run 45-60 minutes during the late-morning departure bank when several transatlantic flights process simultaneously.
The Codeshare Trick: Same Seat, Different Frequent-Flyer ProgramMubboo original data
Aer Lingus's nonstop sells under several flight numbers — EI, AA, BA, and sometimes Iberia's IB — for the identical Airbus A330. Search all of them separately; award availability and cash pricing differ by up to $120 for the same seat on the same day, because each airline controls its own inventory allocation on the shared flight.
Skip the Basic Economy Fare on the Nonstop
Aer Lingus's Economy Basic fare blocks seat selection and carry-on bag drop until check-in, which on a 10-hour overnight flight means a real risk of a middle seat with no overhead bin space. The $60-$90 upgrade to Economy Classic buys advance seat choice and a full carry-on allowance — worth it on this specific route more than on shorter hops.
Tuesday Departures Beat Weekend Fares by $40-$70
Across all five carriers on this route, Tuesday and Wednesday departures price consistently below Thursday-through-Sunday, when Bay Area leisure travelers and Dublin-bound business travelers overlap demand. Shifting a Saturday departure to the preceding Tuesday, keeping the same return date, is the single easiest fare reduction available without changing your trip length.
Global Entry Cuts the SFO Return Line, Not the Dublin OneMubboo original data
Because Dublin preclears US-bound passengers, Global Entry does nothing for your Dublin departure — you'll still queue at the CBP preclearance counters like everyone else. Where Global Entry helps is skipping SFO's domestic arrivals crowd entirely, since you already cleared customs in Dublin; you just walk off the plane and out of the terminal.
👥 Who flies this route — and what they should know
Digital nomad basing in Dublin for a month
Featured this monthBook Aer Lingus's nonstop economy for the straight-through convenience, and land in Dublin's Terminal 2 with a working eSIM already active rather than hunting for a SIM shop after a 10-hour flight. Yugo Explore's Broadstone Hall apartments run from $154 a night and suit month-long stays better than hotel rates. Dublin's compact center means you won't need a car — buses, the Luas tram, and DART trains cover everything on a Leap Card. Mubboo Pick: shoulder-season nonstop in April, September, or November for the best fare-to-daylight-hours tradeoff. Skip a summer arrival if you're working remotely; Dublin's long June-July daylight makes sleep schedules harder to reset after the westbound jet lag.
First-time Dublin pub-and-history tourist
Fly Aer Lingus economy on the nonstop, departing SFO in the early evening and landing in Dublin by mid-morning — you'll lose a night's sleep but gain a full first day exploring Trinity College and the Book of Kells ($110 admission) instead of burning it on a layover. Land at Terminal 2, take the Aircoach or 747 bus into the city center (25-35 minutes), and check into a spot like O'Neills Victorian Pub Townhouse near St. Stephen's Green — walkable to Temple Bar. Mubboo Pick: the nonstop, booked 3-4 months out, in February or November. Skip British Airways' Heathrow routing here; the extra three hours isn't worth it for a first visit focused on the city center, and jet lag hits harder after two flight legs than one.
Ryanair-style budget backpacker heading into the countryside
Delta's one-stop through Boston prices $30-$80 below Aer Lingus's nonstop most months, worth the extra travel time if you're chasing the cheapest ticket. Land in Dublin, then head straight for the Wicklow Mountains and Glendalough day tour (from $657 per group, cheaper split among 3-4 people) rather than lingering in the city. Rent a car at DUB arrivals if the group is splitting costs — Ireland's motorway network makes Galway and the west coast a 2.5-hour drive. Mubboo Pick: Delta via Boston, booked in shoulder season in April or September. Skip peak summer here entirely; countryside accommodation books out weeks ahead and prices double.
Business traveler needing a flat-bed redeye
Aer Lingus's business cabin on the nonstop A330 runs $2,400-$3,600 round trip and includes a flat-bed seat, priority SFO check-in at Terminal G, and lounge access before an evening departure that lands you in Dublin ready for a same-day 10am meeting. Aer Club or codeshare AAdvantage/Avios miles both earn on this fare class. Mubboo Pick: book the nonstop business cabin direct through Aer Lingus, not the codeshare, for faster upgrade clearance and better seat-map visibility. Skip United's Star Alliance connection for business travel on this route — Aer Lingus's product and schedule both beat a Dulles or Newark connection for a same-day-useful arrival.
Family visiting Irish relatives
United and Delta's one-stop connections often undercut Aer Lingus's nonstop by $40-$80 per ticket, which matters when you're buying four or five seats for a family trip. The tradeoff is a longer day with kids — a Newark or Boston connection adds 2.5-3 hours versus the nonstop's straight-through 10h 10m. If your kids are under 8, the nonstop is worth the fare premium just to avoid a second boarding process. Mubboo Pick: the nonstop for families with young kids; Delta via Boston for budget-conscious families with older children. Book 4 months ahead — family-size award availability disappears fastest on this route.
St. Patrick's Day trip planner
Fares on every carrier spike 30-40% for St. Patrick's week (March 14-17) — Aer Lingus's nonstop alone can hit $900-$1,100 round trip if you book inside 60 days. Book by December for a March trip, or shift your visit a week earlier or later to dodge the surge while still catching pre-parade pub energy. Dublin's parade route through the city center gets genuinely packed; book accommodation like Azure Bed and Breakfast well outside the immediate Temple Bar core for a quieter, cheaper base. Mubboo Pick: book 90+ days out, or skip mid-March for late February's lower fares and comparable weather. Anti-rec: don't fly in on parade morning itself — Dublin Airport transfers can run double their normal price that week.
Points-and-miles maximizer chasing a business-class redemption
Search Aer Lingus's nonstop under all four sales codes — EI, AA, BA, and IB — because award seat release differs by program even for the identical flight. AAdvantage and Avios both price the Aer Lingus business cabin as a saver-level transatlantic redemption more often than Aer Club does directly. Alternatively, British Airways' Heathrow routing opens a free stopover if you're transferring Amex Membership Rewards or Chase points into Avios. Mubboo Pick: check AAdvantage and Avios award space on the Aer Lingus codeshare before booking cash, especially 10-11 months before a summer date. Skip United and Delta for award redemptions here — their partner award charts price this route worse than the oneworld options.
⚖️ Flight delayed or canceled?
EU261 doesn't apply to flights departing the US, but it does cover your Dublin-to-SFO return if Aer Lingus, British Airways, or a codeshare partner delays you 3+ hours or cancels — compensation runs €250-€600 depending on distance. On the outbound SFO-DUB leg, US DOT rules apply instead: no federal cash-compensation mandate, but airlines must rebook you or refund a canceled flight.
Flight delayed or cancelled? You may be owed up to €600 in compensation.
📱
Free option: Check whether your US carrier's international day-pass (T-Mobile, Verizon, AT&T all offer one) already covers Ireland before buying anything.
Skip the airport SIM kiosk line. Ireland runs on the same GSM bands as most US carrier international plans, but a local eSIM is cheaper for month-long stays.
🛡️
Free option: Check whether your credit card (Chase Sapphire Reserve, Amex Platinum) already includes trip delay and interruption coverage before buying a separate policy.
A 10-hour nonstop with one operator means limited rebooking options if Aer Lingus cancels. Trip interruption coverage matters more on single-carrier routes than on routes with five daily alternatives.
🚗
Free option: The Aircoach and Dublin Bus 747 both run from DUB into the city center for under $11 per person if you're not carrying much luggage.
Landing after a redeye is the worst time to negotiate a taxi rank. A pre-booked private transfer from DUB into the city center runs about $174 per vehicle — split three or four ways, it beats a taxi.
Emergency contacts in Dublin
Frequently asked questions about San Francisco to Dublin flights
Yes — Aer Lingus is the only airline flying nonstop, an Airbus A330 running seven days a week in about 10 hours 10 minutes eastbound. American Airlines and British Airways sell seats on that same physical flight through a codeshare, so you'll see EI, AA, and BA flight numbers for the identical aircraft. Every other airline on this route — United, Delta — requires at least one connection.
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: 2026-07-01T18:40:45.474Z · Government info: travel.state.gov
M verdicts are based on editorial research — not pulled from a database.