Which airlines fly to San Francisco?

Based on our data, the most popular airlines that fly to San Francisco from Ireland are Aer Lingus, United Airlines, British Airways and American Airlines. There may also be other airline options depending on where in Ireland you’re flying from.

Delta Flights to San Francisco

25 Delta flights head to San Francisco on average each week. Most will be flying from Atlanta Hartsfield-Jackson to San Francisco, the most popular route that Delta operates to San Francisco. Prices vary based on when and where you fly from - the cheapest Delta flight to San Francisco found in the past 3 days on momondo was €298, departing from Dublin. Delta is the most popular choice on momondo for this route and has been scored 7.9/10 by 7,996 of our users.

Scandinavian Airlines Flights to San Francisco

Scandinavian Airlines flight deals to San Francisco start from €367 - this is the best price found recently on momondo, and was a return journey departing from Dublin. Over any normal week, Scandinavian Airlines flight prices are typically higher, but vary depending on where you fly from - Los Angeles is the most popular Scandinavian Airlines departure point to San Francisco so generally has the most availability. Scandinavian Airlines is scored a 7.4/10 in 1,543 reviews.

How long does it take to fly to San Francisco?

The flight from Ireland to San Francisco depends on which airports you’re departing from and arriving to, and whether or not you have a layover. If you fly from Dublin (a popular airport in Ireland) to San Francisco (the most popular airport in San Francisco), then the flight time is 10h 55m on average. If you fly from Cork (another popular airport in Ireland) to San Francisco, then the average flight time is 13h 50m.

€303 Cheap Flights to San Francisco in 2025/26

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Find the cheapest flights from Ireland to San Francisco

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12:30 - 15:35DUB-SFO

11h 05mdirect

20:40 - 19:40SFO-DUB

15h 00m1 stop

€467Multiple Airlines

Find Deal

Sat, 7 Feb - Mon, 23 Feb

12:30 - 15:35DUB-SFO

11h 05mdirect

17:30 - 17:00SFO-DUB

15h 30m1 stop

€468Multiple Airlines

Find Deal

Mon, 12 Jan - Wed, 11 Feb

12:30 - 15:35DUB-SFO

11h 05mdirect

06:00 - 05:10SFO-DUB

15h 10m1 stop

€470Aer Lingus

Find Deal

Fri, 5 Dec - Wed, 17 Dec

06:40 - 15:00DUB-SFO

16h 20m1 stop

17:20 - 11:25SFO-DUB

10h 05mdirect

€475Aer Lingus

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Sat, 24 Jan - Fri, 6 Feb

20:40 - 15:00DUB-SFO

26h 20m1 stop

16:11 - 19:50SFO-DUB

19h 39m2 stops

€478British Airways

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Wed, 17 Dec - Thu, 1 Jan

07:00 - 15:00DUB-SFO

16h 00m1 stop

17:30 - 15:05SFO-DUB

13h 35m1 stop

€495British Airways

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Thu, 18 Dec - Sun, 4 Jan

09:00 - 21:39DUB-SFO

20h 39m1 stop

08:30 - 07:30SFO-DUB

15h 00m1 stop

€499United Airlines

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Wed, 11 Feb - Wed, 25 Feb

09:00 - 09:35DUB-SFO

32h 35m1 stop

07:00 - 07:30SFO-DUB

16h 30m2 stops

€500United Airlines

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Sat, 22 Nov - Sat, 29 Nov

12:30 - 15:35DUB-SFO

11h 05mdirect

18:30 - 15:40SFO-DUB

14h 10m1 stop

€532American Airlines

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Wed, 4 Mar - Sun, 8 Mar

07:50 - 15:00SNN-SFO

15h 10m1 stop

18:30 - 16:45SFO-SNN

15h 15m1 stop

€533American Airlines

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Thu, 5 Mar - Mon, 9 Mar

Fly from

Route

Depart

Return

Price

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Sat 7/2

12:30-15:35

Nonstop11h 05m

San Francisco

Mon 23/2

20:40-19:40

1 stop15h 00m

€467

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Mon 12/1

12:30-15:35

Nonstop11h 05m

San Francisco

Wed 11/2

17:30-17:00

1 stop15h 30m

€468

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Fri 5/12

12:30-15:35

Nonstop11h 05m

San Francisco

Wed 17/12

06:00-05:10

1 stop15h 10m

€470

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Sat 24/1

06:40-15:00

1 stop16h 20m

San Francisco

Fri 6/2

17:20-11:25

Nonstop10h 05m

€475

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Wed 17/12

20:40-15:00

1 stop26h 20m

San Francisco

Thu 1/1

16:11-19:50

2 stops19h 39m

€478

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Thu 18/12

07:00-15:00

1 stop16h 00m

San Francisco

Sun 4/1

17:30-15:05

1 stop13h 35m

€495

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Wed 11/2

09:00-21:39

1 stop20h 39m

San Francisco

Wed 25/2

08:30-07:30

1 stop15h 00m

€499

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Sat 22/11

09:00-09:35

1 stop32h 35m

San Francisco

Sat 29/11

07:00-07:30

2 stops16h 30m

€500

DublinSan Francisco

DUB - SFO

DUBSFO

Dublin

Wed 4/3

12:30-15:35

Nonstop11h 05m

San Francisco

Sun 8/3

18:30-15:40

1 stop14h 10m

€532

ShannonSan Francisco

SNN - SFO

SNNSFO

Shannon

Thu 5/3

07:50-15:00

1 stop15h 10m

San Francisco

Mon 9/3

18:30-16:45

1 stop15h 15m

€533

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

San Francisco flights insights and trends

Explore insights for your San Francisco flight to craft the best travel plan

Prices

Other information

What is the cheapest month to fly to San Francisco?

The cheapest month to fly to San Francisco from Ireland is in February. Flight prices, which tend to average around €483, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of February, then book flights to San Francisco from Ireland during November instead. Flights to San Francisco in November, while not as cheap as those in February, still average around €507.

What is the absolute cheapest flight to San Francisco?

See prices from:

What is the cheapest day to depart on your flight to San Francisco?

On average, the least expensive day to fly to San Francisco from Ireland is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as €580. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from Ireland because it is more convenient for both business and leisure travellers. As a result, prices tend to be around €670.

What is the cheapest time of day to depart on your flight to San Francisco?

According to our data, the cheapest time of day to fly to San Francisco is in the evening. momondo users have found flights departing from Ireland to San Francisco in the evening for as low as €527. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are €949 on average. Flights to San Francisco from Ireland in the afternoon are generally more expensive because this time of day is more convenient for travellers’ schedules.

How far in advance should I book a flight to San Francisco?

You are more likely to see cheaper flights to San Francisco from Ireland when booking weeks ahead of your departure date. In general, you can expect to find flights to San Francisco for around €606 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Francisco from Ireland for as low as €548 on momondo.

Cheapest flights to San Francisco

Find the cheapest flights to San Francisco from your nearest city or airport

Find flights from Dublin to San Francisco

CHEAPEST MONTH TO FLY TO SAN FRANCISCO FROM DUBLIN	February	21% cheaper	Flying from Dublin to San Francisco costs on average just €483 in February
MOST EXPENSIVE MONTH TO FLY TO SAN FRANCISCO FROM DUBLIN	July	29% more expensive	It costs about €785 for flights to San Francisco from Dublin in July
MOST POPULAR MONTH TO FLY TO SAN FRANCISCO FROM DUBLIN	July	440% more users visited	More momondo users searched in flights to San Francisco from Dublin in July than any other month

Cheap San Francisco flight deals and tips

Summary info about San Francisco flight prices, duration and airlines

Best One-Way Price	€303
Best Round-Trip Price	€467
Fastest flight time	16h 20m
Popular in	July

The best one-way flight price to San Francisco from Ireland in the last 72 hours is €303 (Dublin to San Francisco).

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The best round-trip flight price to San Francisco from Ireland in the last 72 hours is €467 (Dublin to San Francisco).

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The fastest flight to San Francisco from Ireland takes 16h 20m (Dublin to San Francisco).

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July has the highest demand for flights to San Francisco, with a 17% price increase on average.

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Frequently asked questions about flying to San Francisco

When is it best to fly to San Francisco to go sightseeing?

The best time to plan to fly to San Francisco to go sightseeing would be when the temperature is not unbearable and the chance of rain is only moderate. Considering those guidelines, January, February, or December seem like the best times of year to plan your visit.

How far in advance should I book a flight to San Francisco?

The best time to book a flight to San Francisco from Ireland is 47 days out, which is when prices tend to be around €606. However, in the past 72 hours, people saw flights from Ireland for as low as €388.

Is there an alternative airport near San Francisco?

Those flying to San Francisco could potentially find better pricing at Oakland Airport (19 km from San Francisco city centre), Concord Buchanan Fld Airport (38 km from San Francisco city centre), Napa County Airport (48 km from San Francisco city centre), San Jose Airport (64 km from San Francisco city centre) or Santa Rosa Sonoma County Airport (87 km from San Francisco city centre) depending on the month and departure airport.

Is there a cheaper alternative to flying into San Francisco?

Prices vary based on where travellers are departing from, but on average, the cheapest airport to fly to in San Francisco is San Jose Airport where the average price is €162. Users typically find the best prices when using momondo’s Airport-to-Airport Pricing Tool.

When did momondo last update prices for flights to San Francisco Airport?

Prices for flights to San Francisco Airport are refreshed on a daily basis.

How many operators does momondo search for flights to San Francisco Airport?

As of October 2025, there are 11 operators available to choose from for flights to San Francisco Airport.

How old do you have to be to fly to San Francisco Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel to San Francisco Airport.

What documentation or ID do you need to fly to San Francisco Airport?

The travel and health documents you'll need for your trip to San Francisco Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at San Francisco Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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Millbrae

Walnut Creek

Alameda

Menlo Park

Why use momondo?

Why should I use momondo to find a flight deal to San Francisco?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights to San Francisco. Millions of users trust and use momondo every year so you are in good company.

Can I find flights to San Francisco with flexible booking policies on momondo?

momondo does allow users to show only those flights to San Francisco which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights to San Francisco?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as filter your options to help you make an informed choice when booking flights to San Francisco.

I’m not ready to book a flight to San Francisco right now. Can momondo alert me if prices change?

Yes. momondo can track flight prices for San Francisco and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.