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

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

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

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

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

As of April 2026, there are 2 operators available to choose from for flights from Belfast to San Francisco Airport.

How old do you have to be to fly from Belfast 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 Belfast 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.

£392 Cheap Flights from Belfast to San Francisco in 2026

Q: What is the typical price of a round-trip flight between Belfast and San Francisco?

Prices are currently high for flights on this route. Typical prices usually range from £590 to £543. The lowest price recently found on this route was £634.

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Find the cheapest flights from Belfast to San Francisco

Round-trip

One-way

Cheap return flights

Enter your travel dates to find the best prices.

13:45 - 00:39

BHD

SFO

18h 54m

2 stops

16:35 - 15:30

SFO

BHD

14h 55m

1 stop

£634British Airways

Tue, 22 Sep - Thu, 15 Oct

13:45 - 13:50

BHD

SFO

32h 05m

1 stop

19:30 - 18:45

SFO

BHD

15h 15m

1 stop

£652British Airways

Tue, 22 Sep - Thu, 15 Oct

16:25 - 13:50

BHD

SFO

29h 25m

1 stop

11:30 - 15:40

SFO

BHD

20h 10m

2 stops

£660American Airlines

Tue, 1 Sep - Wed, 23 Sep

09:40 - 20:18

BHD

SFO

18h 38m

2 stops

11:30 - 15:30

SFO

BHD

20h 00m

2 stops

£664American Airlines

Tue, 1 Sep - Thu, 24 Sep

10:20 - 21:25

BHD

SFO

19h 05m

1 stop

17:55 - 20:30

SFO

BHD

18h 35m

1 stop

£670Multiple Airlines

Tue, 19 May - Tue, 26 May

07:00 - 16:35

BFS

SFO

41h 35m

3 stops

06:00 - 19:15

SFO

BFS

29h 15m

2 stops

£671Multiple Airlines

Wed, 3 Jun - Wed, 10 Jun

15:20 - 17:40

BHD

SFO

34h 20m

1 stop

16:35 - 15:30

SFO

BHD

14h 55m

1 stop

£675American Airlines

Mon, 31 Aug - Thu, 24 Sep

13:45 - 00:39

BHD

SFO

18h 54m

2 stops

07:54 - 10:10

SFO

BHD

18h 16m

2 stops

£679British Airways

Tue, 22 Sep - Thu, 15 Oct

06:40 - 14:35

BFS

SFO

39h 55m

3 stops

06:00 - 19:40

SFO

BFS

29h 40m

3 stops

£680Multiple Airlines

Tue, 2 Jun - Tue, 9 Jun

16:25 - 13:50

BHD

SFO

29h 25m

1 stop

16:36 - 18:10

SFO

BHD

17h 34m

2 stops

£690American Airlines

Tue, 1 Sep - Fri, 25 Sep

British Airways flights from Belfast to San Francisco

Our best British Airways deals on Belfast to San Francisco flight tickets

British Airways

22 Sept

BHD13:45Belfast City

18h 54m

2 stops

SFO00:39San Francisco

15 Oct

SFO16:35San Francisco

14h 55m

1 stop

BHD15:30Belfast City

£634

British Airways

22 Sept

BHD13:45Belfast City

32h 05m

1 stop

SFO13:50San Francisco

15 Oct

SFO19:30San Francisco

15h 15m

1 stop

BHD18:45Belfast City

£652

British Airways

22 Sept

BHD13:45Belfast City

18h 54m

2 stops

SFO00:39San Francisco

15 Oct

SFO07:54San Francisco

18h 16m

2 stops

BHD10:10Belfast City

£679

American Airlines flights from Belfast to San Francisco

Our best American Airlines deals on Belfast to San Francisco flight tickets

American Airlines

1 Sept

BHD16:25Belfast City

29h 25m

1 stop

SFO13:50San Francisco

23 Sept

SFO11:30San Francisco

20h 10m

2 stops

BHD15:40Belfast City

£660

American Airlines

1 Sept

BHD09:40Belfast City

18h 38m

2 stops

SFO20:18San Francisco

24 Sept

SFO11:30San Francisco

20h 00m

2 stops

BHD15:30Belfast City

£664

American Airlines

31 Aug

BHD15:20Belfast City

34h 20m

1 stop

SFO17:40San Francisco

24 Sept

SFO16:35San Francisco

14h 55m

1 stop

BHD15:30Belfast City

£675

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Fastest return journey

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Tue 22/9

13:45-00:39

2 stops18h 54m

San Francisco

Thu 15/10

16:35-15:30

1 stop14h 55m

£634

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Tue 22/9

13:45-13:50

1 stop32h 05m

San Francisco

Thu 15/10

19:30-18:45

1 stop15h 15m

£652

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Tue 1/9

16:25-13:50

1 stop29h 25m

San Francisco

Wed 23/9

11:30-15:40

2 stops20h 10m

£660

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Tue 1/9

09:40-20:18

2 stops18h 38m

San Francisco

Thu 24/9

11:30-15:30

2 stops20h 00m

£664

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Tue 19/5

10:20-21:25

1 stop19h 05m

San Francisco

Tue 26/5

17:55-20:30

1 stop18h 35m

£670

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Wed 3/6

07:00-16:35

3 stops41h 35m

San Francisco

Wed 10/6

06:00-19:15

2 stops29h 15m

£671

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Mon 31/8

15:20-17:40

1 stop34h 20m

San Francisco

Thu 24/9

16:35-15:30

1 stop14h 55m

£675

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Tue 22/9

13:45-00:39

2 stops18h 54m

San Francisco

Thu 15/10

07:54-10:10

2 stops18h 16m

£679

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Tue 2/6

06:40-14:35

3 stops39h 55m

San Francisco

Tue 9/6

06:00-19:40

3 stops29h 40m

£680

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Tue 1/9

16:25-13:50

1 stop29h 25m

San Francisco

Fri 25/9

16:36-18:10

2 stops17h 34m

£690

Flights are sorted by cheapest return flights first.

Showing 1-10 of 15 resultsSorted by cheapest first

How to get the cheapest flight ticket from Belfast 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 typical price of a round-trip flight between Belfast and San Francisco?

Cheap Belfast to San Francisco flight deals and tips

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

Fastest flight time	15h 20m
Direct flights	None

The fastest flight from Belfast to San Francisco takes 15h 20m

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

Search flight deals

Frequently asked questions about flying from Belfast to San Francisco

How far is Belfast to San Francisco by plane?
San Francisco is 5028.4 mi away from Belfast. A reasonable flight in good conditions will take 15h 20m.
When did momondo last update prices for flights from Belfast to San Francisco Airport?
Prices for flights from Belfast to San Francisco Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Belfast to San Francisco Airport?
As of April 2026, there are 2 operators available to choose from for flights from Belfast to San Francisco Airport.
How old do you have to be to fly from Belfast 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 Belfast 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 Belfast to San Francisco

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

Airline	Rating	Free Cancellation	Price
British Airways	PriceFrom £424	Free Cancellation	Rating 6.7 7,907 reviews		Search British Airways flights
American Airlines	PriceFrom £469	Free Cancellation	Rating 7.1 11,662 reviews		Search American Airlines flights

Sunnyvale

Santa Clara

Santa Cruz

Rohnert Park

Seaside

Big Sur

Newark

South San Francisco

Capitola

Campbell

Palo Alto

Roseville

Sausalito

San Bruno

Woodland

Novato

Pacific Grove

Aptos

Burlingame

Mill Valley

Why use momondo?

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

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

All flight searches from Belfast to San Francisco on momondo can be filtered to show those which offer flexible booking policies.

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

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

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

Of course. momondo tracks the price of Belfast to San Francisco flights. All you need is a valid email address and we will do the rest; it is that quick and easy.