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Cheap flights from San Francisco to Belfast from £280

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Francisco to Belfast departing on 27/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags
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Find the cheapest flights from San Francisco to Belfast

Cheap return flights

Enter your travel dates to find the best prices.
British Airways Logo
16:35 - 15:40
SFO
-
BHD
15h 05m
1 stop
British Airways Logo
06:30 - 13:50
BHD
-
SFO
15h 20m
1 stop
£675British Airways
Wed, 9 Sep - Thu, 17 Sep
American Airlines Logo
14:58 - 15:40
SFO
-
BHD
16h 42m
2 stops
American Airlines Logo
06:30 - 19:11
BHD
-
SFO
20h 41m
2 stops
£677American Airlines
Wed, 9 Sep - Thu, 17 Sep
British Airways Logo
16:35 - 15:40
SFO
-
BHD
15h 05m
1 stop
British Airways Logo
06:30 - 20:30
BHD
-
SFO
22h 00m
2 stops
£681British Airways
Wed, 9 Sep - Thu, 17 Sep
British Airways Logo
20:35 - 20:15
SFO
-
BHD
15h 40m
1 stop
British Airways Logo
06:30 - 18:35
BHD
-
SFO
20h 05m
1 stop
£688British Airways
Wed, 2 Dec - Sun, 6 Dec
British Airways Logo
19:30 - 20:35
SFO
-
BHD
17h 05m
1 stop
British Airways Logo
06:30 - 13:50
BHD
-
SFO
15h 20m
1 stop
£710British Airways
Fri, 11 Sep - Thu, 17 Sep
American Airlines Logo
13:27 - 15:40
SFO
-
BHD
18h 13m
2 stops
American Airlines Logo
13:10 - 00:20
BHD
-
SFO
19h 10m
2 stops
£713American Airlines
Wed, 9 Sep - Sun, 20 Sep
KLM Logo
13:45 - 09:20
SFO
-
BHD
35h 35m
1 stop
KLM Logo
09:45 - 11:45
BHD
-
SFO
34h 00m
1 stop
£718KLM
Wed, 9 Sep - Sun, 20 Sep
Delta Logo
14:15 - 16:55
SFO
-
BHD
18h 40m
2 stops
Delta Logo
17:30 - 11:45
BHD
-
SFO
26h 15m
1 stop
£721Delta
Fri, 11 Sep - Thu, 17 Sep
Multiple Airlines Logo
06:40 - 11:15
SFO
-
BFS
20h 35m
3 stops
Multiple Airlines Logo
22:45 - 21:55
BFS
-
SFO
31h 10m
3 stops
£785Multiple Airlines
Mon, 3 Aug - Tue, 18 Aug
Multiple Airlines Logo
08:10 - 11:15
SFO
-
BFS
19h 05m
2 stops
Multiple Airlines Logo
22:45 - 21:55
BFS
-
SFO
31h 10m
3 stops
£791Multiple Airlines
Mon, 3 Aug - Tue, 18 Aug

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KLM flights from San Francisco to Belfast

Our best KLM deals on San Francisco to Belfast flight tickets
KLM
9 Sept
SFO13:45San Francisco
35h 35m
1 stop
BHD09:20Belfast City
20 Sept
BHD09:45Belfast City
34h 00m
1 stop
SFO11:45San Francisco
£718
KLM
11 Sept
SFO14:00San Francisco
18h 55m
2 stops
BHD16:55Belfast City
17 Sept
BHD09:50Belfast City
18h 42m
2 stops
SFO20:32San Francisco
£729
KLM
5 Aug
SFO13:45San Francisco
19h 10m
1 stop
BHD16:55Belfast City
11 Aug
BHD17:30Belfast City
26h 15m
1 stop
SFO11:45San Francisco
£788

British Airways flights from San Francisco to Belfast

Our best British Airways deals on San Francisco to Belfast flight tickets
British Airways
9 Sept
SFO16:35San Francisco
15h 05m
1 stop
BHD15:40Belfast City
17 Sept
BHD06:30Belfast City
15h 20m
1 stop
SFO13:50San Francisco
£675
British Airways
9 Sept
SFO16:35San Francisco
15h 05m
1 stop
BHD15:40Belfast City
17 Sept
BHD06:30Belfast City
22h 00m
2 stops
SFO20:30San Francisco
£681
British Airways
2 Dec
SFO20:35San Francisco
15h 40m
1 stop
BHD20:15Belfast City
6 Dec
BHD06:30Belfast City
20h 05m
1 stop
SFO18:35San Francisco
£688

momondo Fare Finder

 
Customise your flight search to find flights from San Francisco to Belfast that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 279,928 searches. Data last updated 10 July 2026.
Use the filters below to find and compare flights from San Francisco to Belfast that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Wed 9/9

16:35-15:40

1 stop15h 05m

Belfast City

Thu 17/9

06:30-13:50

1 stop15h 20m

£675

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Wed 9/9

14:58-15:40

2 stops16h 42m

Belfast City

Thu 17/9

06:30-19:11

2 stops20h 41m

£677

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Wed 9/9

16:35-15:40

1 stop15h 05m

Belfast City

Thu 17/9

06:30-20:30

2 stops22h 00m

£681

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Wed 2/12

20:35-20:15

1 stop15h 40m

Belfast City

Sun 6/12

06:30-18:35

1 stop20h 05m

£688

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Fri 11/9

19:30-20:35

1 stop17h 05m

Belfast City

Thu 17/9

06:30-13:50

1 stop15h 20m

£710

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Wed 9/9

13:27-15:40

2 stops18h 13m

Belfast City

Sun 20/9

13:10-00:20

2 stops19h 10m

£713

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Wed 9/9

13:45-09:20

1 stop35h 35m

Belfast City

Sun 20/9

09:45-11:45

1 stop34h 00m

£718

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Fri 11/9

14:15-16:55

2 stops18h 40m

Belfast City

Thu 17/9

17:30-11:45

1 stop26h 15m

£721

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

Mon 3/8

06:40-11:15

3 stops20h 35m

Belfast Intl

Tue 18/8

22:45-21:55

3 stops31h 10m

£785

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

Mon 3/8

08:10-11:15

2 stops19h 05m

Belfast Intl

Tue 18/8

22:45-21:55

3 stops31h 10m

£791

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Belfast from

How to get the cheapest flight ticket from San Francisco to Belfast

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

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

Aer Lingus, British Airways, and Virgin Atlantic are the most popular carriers operating from San Francisco to Belfast

Cheap San Francisco to Belfast flight deals and tips

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

Fastest flight time

15h 40m

Direct flights

None
The fastest flight from San Francisco to Belfast takes 15h 40m
There are no direct flights from San Francisco to Belfast. There are no popular flight routes from San Francisco to Belfast.
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Frequently asked questions about flying from San Francisco to Belfast

  • How far is San Francisco to Belfast by plane?

    The straight-line distance from San Francisco to Belfast is 5028.4 mi. A reasonable flight in good conditions will take 15h 40m.

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

    Prices for flights from San Francisco Airport to Belfast refresh daily.

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Francisco Airport to Belfast.

  • What documentation or ID do you need to fly to Belfast?

    The travel and health documents you'll need for your trip to Belfast 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 license and a passport that is valid for six months after your intended arrival at Belfast. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from San Francisco to Belfast. momondo saves you time and could save you money on your trip.

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

Yes. momondo enables you to select and highlight flights to Belfast from San Francisco with this policy.

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

momondo helps you find the best flight between San Francisco and Belfast by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Price alerts on flights to Belfast from San Francisco are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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Find better results for your trip to the United Kingdom

Fly into one of these airports located in Belfast

Airports listed have a maximum distance of 12.2 mi from Belfast
Belfast Intl Airport
Belfast City Airport