What is the cheapest airline that flies from Northern Ireland to San Francisco?

British Airways is the most popular carrier operating from Northern Ireland to San Francisco

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

Prices for flights from Northern Ireland to San Francisco Airport refresh daily.

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

As of July 2026, there is 1 operator available to choose from for flights from Northern Ireland to San Francisco Airport.

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

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Northern Ireland to San Francisco Airport.

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

The travel and health documents required for your trip to San Francisco Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at San Francisco Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

£317 Cheap Flights from Northern Ireland to San Francisco in 2026

Discover deals from 900+ travel sites with momondo.

Voted winner of Europe's Best Travel App 2023

Find the cheapest flights from Northern Ireland to San Francisco

Return

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

06:45 - 14:55

BHD

SFO

16h 10m

1 stop

14:12 - 16:40

SFO

BHD

18h 28m

2 stops

£611British Airways

Fri, 13 Nov - Thu, 26 Nov

08:45 - 18:35

BHD

SFO

17h 50m

1 stop

17:25 - 18:50

SFO

BHD

17h 25m

1 stop

£612British Airways

Fri, 13 Nov - Thu, 26 Nov

11:30 - 18:35

BHD

SFO

15h 05m

1 stop

11:15 - 12:50

SFO

BHD

17h 35m

2 stops

£616British Airways

Fri, 13 Nov - Thu, 26 Nov

13:45 - 00:43

BHD

SFO

18h 58m

2 stops

09:12 - 10:20

SFO

BHD

17h 08m

2 stops

£617British Airways

Fri, 13 Nov - Thu, 26 Nov

13:45 - 00:43

BHD

SFO

18h 58m

2 stops

09:12 - 10:20

SFO

BHD

17h 08m

2 stops

£621British Airways

Fri, 13 Nov - Thu, 26 Nov

17:30 - 11:45

BHD

SFO

26h 15m

1 stop

15:16 - 16:55

SFO

BHD

17h 39m

2 stops

£640KLM

Fri, 4 Sep - Sat, 19 Sep

09:50 - 00:36

BHD

SFO

22h 46m

2 stops

15:16 - 16:55

SFO

BHD

17h 39m

2 stops

£644KLM

Fri, 4 Sep - Sat, 19 Sep

06:30 - 13:50

BHD

SFO

15h 20m

1 stop

10:31 - 15:30

SFO

BHD

20h 59m

2 stops

£665American Airlines

Fri, 4 Sep - Fri, 18 Sep

21:10 - 16:15

BFS

SFO

27h 05m

2 stops

19:35 - 22:25

SFO

BFS

18h 50m

2 stops

£698Multiple Airlines

Thu, 20 Aug - Mon, 24 Aug

22:45 - 15:50

BFS

SFO

25h 05m

2 stops

17:35 - 19:30

SFO

BFS

17h 55m

2 stops

£727Multiple Airlines

Thu, 27 Aug - Thu, 3 Sep

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British Airways flights from Northern Ireland to San Francisco

Our best British Airways deals on Northern Ireland to San Francisco flight tickets

British Airways

13 Nov

BHD06:45Belfast City

16h 10m

1 stop

SFO14:55San Francisco

26 Nov

SFO14:12San Francisco

18h 28m

2 stops

BHD16:40Belfast City

£611

British Airways

13 Nov

BHD08:45Belfast City

17h 50m

1 stop

SFO18:35San Francisco

26 Nov

SFO17:25San Francisco

17h 25m

1 stop

BHD18:50Belfast City

£612

British Airways

13 Nov

BHD11:30Belfast City

15h 05m

1 stop

SFO18:35San Francisco

26 Nov

SFO11:15San Francisco

17h 35m

2 stops

BHD12:50Belfast City

£616

KLM flights from Northern Ireland to San Francisco

Our best KLM deals on Northern Ireland to San Francisco flight tickets

KLM

4 Sept

BHD17:30Belfast City

26h 15m

1 stop

SFO11:45San Francisco

19 Sept

SFO15:16San Francisco

17h 39m

2 stops

BHD16:55Belfast City

£640

KLM

4 Sept

BHD09:50Belfast City

22h 46m

2 stops

SFO00:36San Francisco

19 Sept

SFO15:16San Francisco

17h 39m

2 stops

BHD16:55Belfast City

£644

KLM

28 Jul

BHD09:50Belfast City

32h 25m

2 stops

SFO10:15San Francisco

4 Aug

SFO13:45San Francisco

19h 10m

1 stop

BHD16:55Belfast City

£740

momondo Fare Finder

Use the filters below to find and compare flights from Northern Ireland to San Francisco that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Fri 13/11

06:45-14:55

1 stop16h 10m

San Francisco

Thu 26/11

14:12-16:40

2 stops18h 28m

£611

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Fri 13/11

08:45-18:35

1 stop17h 50m

San Francisco

Thu 26/11

17:25-18:50

1 stop17h 25m

£612

Fastest return journey

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Fri 13/11

11:30-18:35

1 stop15h 05m

San Francisco

Thu 26/11

11:15-12:50

2 stops17h 35m

£616

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Fri 13/11

13:45-00:43

2 stops18h 58m

San Francisco

Thu 26/11

09:12-10:20

2 stops17h 08m

£617

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Fri 13/11

13:45-00:43

2 stops18h 58m

San Francisco

Thu 26/11

09:12-10:20

2 stops17h 08m

£621

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Fri 4/9

17:30-11:45

1 stop26h 15m

San Francisco

Sat 19/9

15:16-16:55

2 stops17h 39m

£640

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Fri 4/9

09:50-00:36

2 stops22h 46m

San Francisco

Sat 19/9

15:16-16:55

2 stops17h 39m

£644

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Fri 4/9

06:30-13:50

1 stop15h 20m

San Francisco

Fri 18/9

10:31-15:30

2 stops20h 59m

£665

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Thu 20/8

21:10-16:15

2 stops27h 05m

San Francisco

Mon 24/8

19:35-22:25

2 stops18h 50m

£698

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Thu 27/8

22:45-15:50

2 stops25h 05m

San Francisco

Thu 3/9

17:35-19:30

2 stops17h 55m

£727

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Northern Ireland to San Francisco

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to San Francisco?

The month of November is, on average, the cheapest month to fly to San Francisco from Northern Ireland, with most prices found around £0. If you are unable to visit San Francisco during the month of November, then departing from Northern Ireland during the month January is also very affordable. Most momondo users find prices during this month for around £0.

Cheap Northern Ireland to San Francisco flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Northern Ireland to San Francisco

Fastest flight time	17h 50m
Direct flights	None

The fastest flight from Northern Ireland to San Francisco takes 17h 50m

There are no direct flights from Northern Ireland to San Francisco. There are no popular flight routes from Northern Ireland to San Francisco.

Search flight deals

Frequently asked questions about flying from Northern Ireland to San Francisco

When did momondo last update prices for flights from Northern Ireland to San Francisco Airport?
Prices for flights from Northern Ireland to San Francisco Airport refresh daily.
How many operators does momondo search for flights from Northern Ireland to San Francisco Airport?
As of July 2026, there is 1 operator available to choose from for flights from Northern Ireland to San Francisco Airport.
How old do you have to be to fly from Northern Ireland to San Francisco Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Northern Ireland to San Francisco Airport.
What documentation or ID do you need to fly to San Francisco Airport?
The travel and health documents required for your trip to San Francisco Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at San Francisco Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Northern Ireland to San Francisco

Compare and see reviews for airlines that fly from Northern Ireland to San Francisco with momondo

Airline	Rating	Free Cancellation	Price
British Airways	PriceFrom £511	Free Cancellation	Rating 6.7 8,095 reviews		Search British Airways flights

South San Francisco

Sunnyvale

Santa Cruz

Rohnert Park

Windsor

Belmont

Big Sur

Capitola

Sausalito

San Bruno

Woodland

Pacific Grove

Aptos

Newark

Mill Valley

Campbell

Palo Alto

Seaside

Roseville

Novato

Why use momondo?

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

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

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

Flights from Northern Ireland to San Francisco with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Northern Ireland to San Francisco?

momondo provides multiple filters to help you find the best flight to San Francisco from Northern Ireland. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

If you are not ready to book a flight from Northern Ireland to San Francisco now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to San Francisco and let you know when they change.