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Cheap flights from San Francisco to Belfast from £272

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 18/8. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — BHD
31 Jul — 7 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from San Francisco to Belfast

Enter your travel dates to find the best prices.

Cheapest flights from San Francisco to Belfast
Explore the most affordable flight options available from San Francisco to Belfast. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 July 2026.

Mon 2/1117:25
SFO
-
BHD
1 stop14h 40m
British Airways
Fri 13/1106:45
BHD
-
SFO
1 stop16h 10m
British Airways
Deal found 30/6£656
Wed 4/1114:12
SFO
-
BHD
2 stops16h 23m
British Airways
Tue 10/1108:45
BHD
-
SFO
1 stop14h 10m
British Airways
Deal found 30/6£668
Mon 16/1107:00
SFO
-
BHD
2 stops18h 10m
Delta
Tue 24/1109:40
BHD
-
SFO
1 stop34h 05m
Delta
Deal found 30/6£674
Wed 18/1109:12
SFO
-
BHD
2 stops17h 03m
British Airways
Wed 25/1109:15
BHD
-
SFO
2 stops20h 57m
British Airways
Deal found 30/6£674
Sun 8/1113:50
SFO
-
BHD
1 stop35h 20m
Delta
Fri 13/1109:40
BHD
-
SFO
2 stops23h 10m
Delta
Deal found 30/6£677
Thu 5/1120:35
SFO
-
BHD
1 stop15h 55m
British Airways
Wed 11/1112:25
BHD
-
SFO
1 stop14h 10m
British Airways
Deal found 30/6£679
Mon 16/1107:00
SFO
-
BHD
2 stops18h 10m
Delta
Wed 25/1109:45
BHD
-
SFO
2 stops23h 28m
Delta
Deal found 30/6£681
Wed 2/1220:35
SFO
-
BHD
1 stop15h 40m
British Airways
Sun 6/1206:30
BHD
-
SFO
1 stop20h 05m
British Airways
Deal found 29/6£693
Fri 6/1120:35
SFO
-
BHD
1 stop14h 35m
British Airways
Thu 12/1107:40
BHD
-
SFO
1 stop15h 15m
British Airways
Deal found 30/6£694
Thu 19/1117:25
SFO
-
BHD
1 stop17h 25m
American Airlines
Tue 24/1108:45
BHD
-
SFO
2 stops19h 29m
American Airlines
Deal found 30/6£700
Mon 3/811:10
SFO
-
BFS
3 stops27h 15m
Multiple Airlines
Tue 18/822:45
BFS
-
SFO
3 stops31h 10m
Multiple Airlines
Deal found 30/6£720
Wed 4/1117:20
SFO
-
BFS
2 stops16h 45m
Multiple Airlines
Wed 11/1106:55
BFS
-
SFO
1 stop21h 15m
Multiple Airlines
Deal found 30/6£766

Find flight deals from San Francisco to Belfast

Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to Belfast (BF1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 1 July 2026.

Round-trip from

£656

One-way from

£272
British Airways
  • British Airways
  • 2/11-9/11
  • 2 total stops
  • 43h 10m total
  • San Francisco to Belfast
Search Deals
18/8
  • 18/8
  • 3 total stops
  • 29h 50m total
  • San Francisco to Belfast
Search Deals

Cheapflights 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, Cheapflights users made 858,174 searches. Data last updated 1 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

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

£693

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Sun 8/11

20:35-18:40

1 stop14h 05m

Belfast City

Sat 14/11

06:35-14:55

1 stop16h 20m

£694
Fastest return journey

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Tue 17/11

17:25-14:50

1 stop13h 25m

Belfast City

Sun 22/11

12:10-18:35

1 stop14h 25m

£694

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Thu 5/11

20:35-18:50

1 stop14h 15m

Belfast City

Mon 9/11

19:25-14:55

1 stop27h 30m

£694

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Wed 9/9

19:30-19:50

1 stop16h 20m

Belfast City

Sun 20/9

15:50-13:50

1 stop30h 00m

£707

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Fri 6/11

11:59-16:50

2 stops20h 51m

Belfast City

Thu 12/11

09:40-11:45

1 stop34h 05m

£711

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

Mon 3/8

11:10-22:25

3 stops27h 15m

Belfast Intl

Tue 18/8

22:45-21:55

3 stops31h 10m

£720

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

£720

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

Thu 5/11

19:55-21:55

1 stop18h 00m

Belfast Intl

Wed 11/11

06:25-19:35

2 stops21h 10m

£790

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

Thu 13/8

17:35-19:30

2 stops17h 55m

Belfast Intl

Thu 20/8

06:40-16:40

3 stops42h 00m

£863

Flights are sorted by cheapest return flights first.

Deals found on 1/7

Showing 1-10 of 25 resultsSorted by cheapest first
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Best time to book a flight from San Francisco to Belfast

Have a flexible travel schedule? Discover the best time to fly to Belfast from San Francisco with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from San Francisco to Belfast
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from San Francisco to Belfast. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from San Francisco to Belfast?

    If you book a flight to Belfast from San Francisco, you will be flying from San Francisco, which is the city’s only airport. San Francisco (SFO) is located 11.0 mi from the center of San Francisco. There are 0 flights from San Francisco to Belfast per day from 0 different airlines.

  • How long is the flight from San Francisco to Belfast?

    Departing from San Francisco to Belfast will take you 15h 40m. The distance between San Francisco and Belfast is about 5038 mi.

  • Can I find deals for flights from San Francisco to Belfast that include hotel bookings?

    Yes. In addition to deals on San Francisco to Belfast flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from San Francisco to Belfast?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Francisco to Belfast.

  • Can I find deals for business class flights from San Francisco to Belfast?

    Yes. Cheapflights offers flight deals from San Francisco to Belfast by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for San Francisco to Belfast

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Belfast Intl flights
Los Angeles to Belfast City flights
San Francisco to Belfast Intl flights
San Francisco to Belfast City flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from San Francisco to Belfast?

Deals for San Francisco to Belfast flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from San Francisco to Belfast?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from San Francisco to Belfast.

Can Cheapflights find flights from San Francisco to Belfast with no change fees?

Yes, we can. To see specific flights from San Francisco to Belfast with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from San Francisco to Belfast become cheaper?

Of course! You can now track prices for flights from San Francisco to Belfast and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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