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Cheap flights from San Francisco Bay Area to Belfast from £357

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 17/6. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — BHD
5 Mar — 12 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from San Francisco Bay Area to Belfast

Enter your travel dates to find the best prices.

Cheapest flights from San Francisco Bay Area to Belfast
Explore the most affordable flight options available from San Francisco Bay Area to Belfast. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3 February 2026.

Wed 29/716:35
SFO
-
BHD
1 stop15h 05m
British Airways
Thu 27/820:35
BHD
-
SFO
1 stop25h 15m
British Airways
Deal found 3/2£476
Wed 29/712:41
SJC
-
BHD
2 stops23h 09m
British Airways
Thu 27/809:35
BHD
-
SJC
2 stops20h 50m
British Airways
Deal found 3/2£481
Wed 4/320:40
SFO
-
BHD
1 stop14h 30m
British Airways
Sun 8/306:30
BHD
-
SFO
1 stop16h 30m
British Airways
Deal found 2/2£503
Wed 25/217:30
SFO
-
BHD
1 stop15h 05m
British Airways
Sun 1/306:30
BHD
-
SFO
1 stop16h 30m
British Airways
Deal found 2/2£520
Fri 15/513:40
SFO
-
BHD
2 stops20h 30m
British Airways
Mon 25/515:20
BHD
-
SFO
1 stop30h 30m
British Airways
Deal found 3/2£573
Wed 27/511:45
SFO
-
BHD
2 stops17h 50m
British Airways
Thu 4/619:30
BHD
-
SFO
1 stop26h 20m
British Airways
Deal found 2/2£618
Wed 4/306:00
SJC
-
BHD
2 stops26h 35m
British Airways
Sun 8/317:35
BHD
-
SJC
2 stops35h 57m
British Airways
Deal found 1/2£655
Thu 19/308:30
SFO
-
BFS
3 stops28h 55m
Multiple Airlines
Thu 26/307:05
BFS
-
SFO
2 stops20h 30m
Multiple Airlines
Deal found 2/2£677
Mon 13/711:52
SJC
-
BHD
2 stops19h 38m
British Airways
Fri 31/709:30
BHD
-
SJC
2 stops20h 41m
British Airways
Deal found 2/2£714
Fri 27/206:00
SJC
-
BHD
2 stops27h 15m
British Airways
Tue 3/319:25
BHD
-
SJC
2 stops35h 31m
British Airways
Deal found 2/2£753
Wed 29/717:35
SFO
-
BFS
2 stops20h 45m
Multiple Airlines
Thu 27/806:10
BFS
-
SFO
3 stops41h 40m
Multiple Airlines
Deal found 3/2£767
Fri 27/209:54
OAK
-
BHD
2 stops25h 21m
British Airways
Tue 3/308:45
BHD
-
OAK
2 stops22h 04m
British Airways
Deal found 2/2£818

Find flight deals from San Francisco Bay Area to Belfast

Keep the following information in mind while searching for San Francisco Bay Area to Belfast flight deals. Data was last updated 3 February 2026.

Round-trip from

£476

One-way from

£251

Popular in

June

Cheapest in

April

Average price

£514
British Airways
  • British Airways
  • 29/7-27/8
  • 2 total stops
  • 40h 20m total
  • San Francisco Bay Area to Belfast
Search Deals
16/2
  • 16/2
  • 3 total stops
  • 34h 10m total
  • San Francisco Bay Area to Belfast
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£61 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£20 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from San Francisco Bay Area 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 3 February 2026.
Use the filters below to find and compare flights from San Francisco Bay Area to Belfast that are best for you.

Fly from

San Francisco Bay Area

Fly to

Belfast

Route

Depart

Return

Price

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Wed 29/7

11:07-13:35

2 stops18h 28m

Belfast City

Thu 27/8

20:35-13:50

1 stop25h 15m

£479

San JoseBelfast

SJC - BHD

SJCBHD

San Jose

Wed 29/7

12:41-19:50

2 stops23h 09m

Belfast City

Thu 27/8

09:35-22:25

2 stops20h 50m

£481

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Wed 4/3

17:30-16:35

1 stop15h 05m

Belfast City

Sun 8/3

09:10-15:00

1 stop13h 50m

£503

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Wed 25/2

17:30-16:35

1 stop15h 05m

Belfast City

Sun 1/3

10:40-15:00

1 stop36h 20m

£520

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Fri 15/5

13:40-18:10

2 stops20h 30m

Belfast City

Mon 25/5

15:20-13:50

1 stop30h 30m

£573

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Wed 27/5

10:32-16:55

2 stops22h 23m

Belfast City

Thu 4/6

17:30-11:45

1 stop26h 15m

£638

San JoseBelfast

SJC - BHD

SJCBHD

San Jose

Wed 4/3

06:00-16:35

2 stops26h 35m

Belfast City

Sun 8/3

17:35-22:32

2 stops35h 57m

£655

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

Thu 19/3

08:30-20:25

3 stops28h 55m

Belfast Intl

Thu 26/3

07:05-20:35

2 stops20h 30m

£677

San JoseBelfast

SJC - BHD

SJCBHD

San Jose

Mon 13/7

11:52-15:30

2 stops19h 38m

Belfast City

Fri 31/7

09:30-22:11

2 stops20h 41m

£714

San JoseBelfast

SJC - BHD

SJCBHD

San Jose

Fri 27/2

14:07-17:15

2 stops19h 08m

Belfast City

Tue 3/3

19:25-22:56

2 stops35h 31m

£753

Flights are sorted by cheapest return flights first.

Deals found on 2/2

Showing 1-10 of 20 results
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Best time to book a flight from San Francisco Bay Area to Belfast

Have a flexible travel schedule? Discover the best time to fly to Belfast from San Francisco Bay Area 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 Bay Area to Belfast

What is the cheapest month to book a flight from San Francisco Bay Area to Belfast?

Currently, April is the cheapest month in which you can book a flight from San Francisco Bay Area to Belfast (average of £429). Flying from San Francisco Bay Area to Belfast in December is currently the most expensive (average of £802). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

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

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

    Airlines like British Airways fly from San Francisco Bay Area to Belfast in about 15h 05m. The time it takes to get you to your destination can typically vary by up to . Airlines will cover a distance of 5038 mi.

  • What are the most popular routes from San Francisco Bay Area to Belfast?

    When deciding which route to take from San Francisco Bay Area to Belfast consider San Francisco - Belfast Intl, San Francisco - Belfast City or San Jose - Belfast Intl as they are the most popular.

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

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

  • How can I find direct flights from San Francisco Bay Area 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 Bay Area to Belfast.

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

    Yes. Cheapflights offers flight deals from San Francisco Bay Area 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.

  • What is the cheapest month to book a flight from San Francisco Bay Area to Belfast?

    Currently, April is the cheapest month in which you can book a flight from San Francisco Bay Area to Belfast (average of £429). Flying from San Francisco Bay Area to Belfast in December is currently the most expensive (average of £802). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for San Francisco Bay Area to Belfast

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

Fly with Cheapflights

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

When you search for this flight from San Francisco Bay Area to Belfast, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Belfast from San Francisco Bay Area.

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from San Francisco Bay Area to Belfast flexibly with Cheapflights today.

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Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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