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Cheap flights from San Francisco to Belfast from £212

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 13/11. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — BHD
15 Nov — 22 Nov1
1 adult
1 adult, Economy

Cheap 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 16 October 2025.

Round-trip from

£474

One-way from

£212

Popular in

November

Cheapest in

April

Average price

£487
British Airways
  • British Airways
  • 17/11-3/12
  • 2 total stops
  • 46h 25m total
  • San Francisco to Belfast
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13/11
  • 13/11
  • 2 total stops
  • 25h 05m total
  • San Francisco to Belfast
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (£84 potential increase over avg. return price).
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Cheapest flight prices on average. 5% potential price decrease (£26 potential savings vs. average return price).
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Average for round-trip flights in October 2025
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Find 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 16 October 2025.

Mon 17/1117:30SFO - BHD
1 stop17h 05mBritish Airways
Wed 3/1217:40BHD - SFO
1 stop29h 20mBritish Airways
Deal found 15/10£474
Mon 17/1109:51SFO - BHD
2 stops27h 09mVirgin Atlantic
Wed 3/1206:30BHD - SFO
1 stop13h 20mVirgin Atlantic
Deal found 15/10£477
Wed 12/1108:00SFO - BHD
2 stops18h 15mMultiple Airlines
Wed 19/1109:15BHD - SFO
1 stop13h 45mMultiple Airlines
Deal found 14/10£479
Wed 12/1108:00SFO - BHD
2 stops18h 15mAmerican Airlines
Wed 19/1109:15BHD - SFO
2 stops19h 19mAmerican Airlines
Deal found 14/10£485
Tue 18/1107:20SFO - BHD
2 stops19h 10mMultiple Airlines
Sun 23/1106:30BHD - SFO
1 stop20h 15mMultiple Airlines
Deal found 13/10£501
Wed 3/1220:40SFO - BHD
1 stop26h 50mBritish Airways
Sun 7/1206:30BHD - SFO
1 stop16h 30mBritish Airways
Deal found 14/10£505
Mon 17/1115:30SFO - BHD
2 stops19h 05mAmerican Airlines
Sun 23/1106:30BHD - SFO
2 stops19h 54mAmerican Airlines
Deal found 16/10£506
Tue 18/1107:20SFO - BHD
2 stops19h 10mAmerican Airlines
Sun 23/1106:30BHD - SFO
2 stops19h 54mAmerican Airlines
Deal found 13/10£507
Fri 28/1107:20SFO - BHD
2 stops19h 10mMultiple Airlines
Fri 5/1208:45BHD - SFO
2 stops19h 45mMultiple Airlines
Deal found 13/10£509
Mon 17/1113:55SFO - BHD
1 stop18h 55mKLM
Sun 23/1106:30BHD - SFO
1 stop13h 20mKLM
Deal found 16/10£512
Thu 13/1113:55SFO - BHD
1 stop18h 55mKLM
Tue 18/1106:30BHD - SFO
1 stop13h 20mKLM
Deal found 14/10£512
Wed 12/1107:30SFO - BFS
3 stops22h 35mMultiple Airlines
Wed 19/1117:30BFS - SFO
2 stops27h 10mMultiple Airlines
Deal found 14/10£533

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 16 October 2025.
Use the filters below to find and compare flights from San Francisco to Belfast that are best for you.

Fly from

San Francisco

Fly to

Belfast

Route

Depart

Return

Price

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Mon 17/11

17:30-18:35

1 stop17h 05m

Belfast City

Wed 3/12

17:40-15:00

1 stop29h 20m

£474

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Wed 12/11

08:00-10:15

2 stops18h 15m

Belfast City

Wed 19/11

09:15-15:00

1 stop13h 45m

£479

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Wed 12/11

08:00-10:15

2 stops18h 15m

Belfast City

Wed 19/11

09:15-20:34

2 stops19h 19m

£485

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Tue 18/11

07:20-10:30

2 stops19h 10m

Belfast City

Sun 23/11

06:30-18:45

1 stop20h 15m

£501

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Wed 3/12

20:40-07:30

1 stop26h 50m

Belfast City

Sun 7/12

06:30-15:00

1 stop16h 30m

£505

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Tue 18/11

08:00-10:30

2 stops18h 30m

Belfast City

Sun 23/11

06:30-18:24

2 stops19h 54m

£506

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Tue 18/11

13:55-16:50

1 stop18h 55m

Belfast City

Sun 23/11

06:30-11:50

1 stop13h 20m

£512

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Mon 17/11

13:55-16:50

1 stop18h 55m

Belfast City

Sun 23/11

06:30-11:50

1 stop13h 20m

£512

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Wed 3/12

13:55-21:00

1 stop23h 05m

Belfast City

Sun 7/12

06:30-11:50

1 stop13h 20m

£512

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

Wed 12/11

07:30-14:05

3 stops22h 35m

Belfast Intl

Wed 19/11

17:30-12:40

2 stops27h 10m

£533

Flights are sorted by cheapest return flights first.

Deals found on 14/10

Showing 1-10 of 18 results
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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

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

Currently, April is the cheapest month in which you can book a flight from San Francisco to Belfast (average of £439). Flying from San Francisco to Belfast in January is currently the most expensive (average of £1,002). 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 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 11.8 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 17h 05m. The distance between San Francisco and Belfast is about 5038 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • 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.

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

    Currently, April is the cheapest month in which you can book a flight from San Francisco to Belfast (average of £439). Flying from San Francisco to Belfast in January is currently the most expensive (average of £1,002). 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

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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.
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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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