How do I get Price Alerts for flights from Belfast Intl Airport to San Francisco?

Confirm your travel details to search for the latest offers for flights from Belfast Intl Airport to San Francisco . While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

How can I save money on flights from Belfast Intl Airport to San Francisco with momondo?

Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore” . Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.

How does momondo find its flight prices?

momondo shows deals across 700+ competitors all at once. momondo is active in 30 international markets, so you can have access to a wide range of options from airlines and OTAs alike.

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

Prices for flights from Belfast Intl Airport to San Francisco Airport were last updated today.

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

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Belfast Intl Airport to San Francisco Airport.

What documentation or ID do you need to fly to San Francisco Airport?

The necessary travel and health documents for your San Francisco Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

£679 Cheap Flights from Belfast Intl Airport to San Francisco in 2026/27

Find the cheapest flights from Belfast Intl Airport to San Francisco

Return

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

13:00 - 14:50BFS Belfast Intl-SFO San Francisco

33h 50m2 stops Manchester Kastrup Copenhagen

16:45 - 21:35SFO San Francisco-BFS Belfast Intl

20h 50m2 stops Kastrup Copenhagen Manchester

£679Multiple Airlines

Sat, 19 Dec - Sat, 26 Dec

13:00 - 14:50BFS Belfast Intl-SFO San Francisco

33h 50m3 stops Manchester Stockholm Arlanda Kastrup Copenhagen

16:45 - 21:35SFO San Francisco-BFS Belfast Intl

20h 50m2 stops Kastrup Copenhagen Manchester

£687Multiple Airlines

Sat, 19 Dec - Sat, 26 Dec

14:30 - 14:50BFS Belfast Intl-SFO San Francisco

32h 20m2 stops Paris Charles de Gaulle Kastrup Copenhagen

16:45 - 22:00SFO San Francisco-BFS Belfast Intl

21h 15m2 stops Kastrup Copenhagen Paris Charles de Gaulle

£712Multiple Airlines

Thu, 3 Dec - Thu, 10 Dec

14:30 - 14:50BFS Belfast Intl-SFO San Francisco

32h 20m2 stops Paris Charles de Gaulle Kastrup Copenhagen

16:45 - 22:00SFO San Francisco-BFS Belfast Intl

21h 15m3 stops Kastrup Copenhagen Stockholm Arlanda Paris Charles de Gaulle

£714Multiple Airlines

Thu, 3 Dec - Thu, 10 Dec

16:10 - 14:50BFS Belfast Intl-SFO San Francisco

30h 40m2 stops Manchester Kastrup Copenhagen

16:45 - 22:35SFO San Francisco-BFS Belfast Intl

21h 50m3 stops Kastrup Copenhagen Oslo Gardermoen Manchester

£739Multiple Airlines

Fri, 18 Dec - Fri, 25 Dec

16:10 - 14:50BFS Belfast Intl-SFO San Francisco

30h 40m2 stops Manchester Kastrup Copenhagen

16:45 - 22:35SFO San Francisco-BFS Belfast Intl

21h 50m2 stops Kastrup Copenhagen Manchester

£774Multiple Airlines

Fri, 18 Dec - Fri, 25 Dec

20:50 - 16:30BFS Belfast Intl-SFO San Francisco

27h 40m2 stops London Gatwick Zurich

19:25 - 21:15SFO San Francisco-BFS Belfast Intl

17h 50m2 stops Zurich London Gatwick

£783Multiple Airlines

Mon, 23 Nov - Mon, 14 Dec

14:35 - 20:25BFS Belfast Intl-SFO San Francisco

37h 50m3 stops Rome Fiumicino Lisbon Humberto Delgado Los Angeles

06:30 - 16:15SFO San Francisco-BFS Belfast Intl

25h 45m3 stops Denver Intl Reykjavik Keflavik Intl Glasgow Intl

£796Multiple Airlines

Mon, 23 Nov - Mon, 14 Dec

14:30 - 12:55BFS Belfast Intl-SFO San Francisco

30h 25m1 stop Paris Charles de Gaulle

15:10 - 22:00SFO San Francisco-BFS Belfast Intl

22h 50m1 stop Paris Charles de Gaulle

£841Multiple Airlines

Thu, 3 Dec - Thu, 10 Dec

06:20 - 21:30BFS Belfast Intl-SFO San Francisco

23h 10m2 stops London Gatwick Toronto Pearson Intl

06:30 - 16:15SFO San Francisco-BFS Belfast Intl

25h 45m3 stops Denver Intl Reykjavik Keflavik Intl Glasgow Intl

£894Multiple Airlines

Mon, 23 Nov - Mon, 14 Dec

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Use the filters below to find and compare flights from Belfast Intl Airport to San Francisco that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BelfastSan Francisco

BFS Belfast Intl - SFO San Francisco

BFSSFO

Belfast Intl

Sat 19/12

13:00-14:50

2 stops33h 50m

San Francisco

Sat 26/12

16:45-21:35

2 stops20h 50m

£679

BelfastSan Francisco

BFS Belfast Intl - SFO San Francisco

BFSSFO

Belfast Intl

Sat 19/12

13:00-14:50

3 stops33h 50m

San Francisco

Sat 26/12

16:45-21:35

2 stops20h 50m

£687

BelfastSan Francisco

BFS Belfast Intl - SFO San Francisco

BFSSFO

Belfast Intl

Thu 3/12

14:30-14:50

2 stops32h 20m

San Francisco

Thu 10/12

16:45-22:00

2 stops21h 15m

£712

BelfastSan Francisco

BFS Belfast Intl - SFO San Francisco

BFSSFO

Belfast Intl

Thu 3/12

14:30-14:50

2 stops32h 20m

San Francisco

Thu 10/12

16:45-22:00

3 stops21h 15m

£714

BelfastSan Francisco

BFS Belfast Intl - SFO San Francisco

BFSSFO

Belfast Intl

Fri 18/12

16:10-14:50

2 stops30h 40m

San Francisco

Fri 25/12

16:45-22:35

3 stops21h 50m

£739

BelfastSan Francisco

BFS Belfast Intl - SFO San Francisco

BFSSFO

Belfast Intl

Fri 18/12

16:10-14:50

2 stops30h 40m

San Francisco

Fri 25/12

16:45-22:35

2 stops21h 50m

£774

Fastest return journey

BelfastSan Francisco

BFS Belfast Intl - SFO San Francisco

BFSSFO

Belfast Intl

Mon 23/11

20:50-16:30

2 stops27h 40m

San Francisco

Mon 14/12

19:25-21:15

2 stops17h 50m

£782

BelfastSan Francisco

BFS Belfast Intl - SFO San Francisco

BFSSFO

Belfast Intl

Mon 23/11

14:35-20:25

3 stops37h 50m

San Francisco

Mon 14/12

06:30-16:15

3 stops25h 45m

£796

BelfastSan Francisco

BFS Belfast Intl - SFO San Francisco

BFSSFO

Belfast Intl

Thu 3/12

14:30-12:55

1 stop30h 25m

San Francisco

Thu 10/12

15:10-22:00

1 stop22h 50m

£841

BelfastSan Francisco

BFS Belfast Intl - SFO San Francisco

BFSSFO

Belfast Intl

Mon 23/11

06:20-21:30

2 stops23h 10m

San Francisco

Mon 14/12

06:30-16:15

3 stops25h 45m

£894

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

When to book flights from Belfast Intl Airport to San Francisco

Are you open to changing your travel dates? Check out the ideal times to fly from Belfast Intl Airport to San Francisco according to our flight data. Find out which month and days have the cheapest flights.

Estimated return price

Cheap Belfast Intl Airport to San Francisco (BFS to SFO) flight deals and tips

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

Best price found	£679
Fastest flight time	15h 05m
Direct flights	None

The best flight deal from Belfast Intl Airport to San Francisco found on momondo in the last 72 hours is £679

The fastest flight from Belfast Intl Airport to San Francisco takes 15h 05m

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

Search flight deals

Frequently asked questions about flying from Belfast Intl Airport to San Francisco

How far is Belfast Intl to San Francisco by plane?
San Francisco is 5017.1 mi away from Belfast Intl. Typically, this will take 15h 05m by plane in normal conditions.
When did momondo last update prices for flights from Belfast Intl Airport to San Francisco Airport?
Prices for flights from Belfast Intl Airport to San Francisco Airport were last updated today.
How old do you have to be to fly from Belfast Intl Airport to San Francisco Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Belfast Intl Airport to San Francisco Airport.
What documentation or ID do you need to fly to San Francisco Airport?
The necessary travel and health documents for your San Francisco Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Frequently asked questions about flying from Belfast Intl Airport to San Francisco

How do I get Price Alerts for flights from Belfast Intl Airport to San Francisco?
Confirm your travel details to search for the latest offers for flights from Belfast Intl Airport to San Francisco. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.
How can I save money on flights from Belfast Intl Airport to San Francisco with momondo?
Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore”. Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.
How does momondo find its flight prices?
momondo shows deals across 700+ competitors all at once. momondo is active in 30 international markets, so you can have access to a wide range of options from airlines and OTAs alike.

South San Francisco

Carmel-by-the-Sea

Santa Cruz

Berkeley

Sunnyvale

Calistoga

Windsor

Big Sur

Burlingame

Belmont

Pacific Grove

Aptos

Mill Valley

Palo Alto

Campbell

Newark

San Mateo

Seaside

Roseville

Novato

Why use momondo?

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

Finding the right flight to San Francisco from Belfast is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to San Francisco quick and easy, saving you time and money.

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

momondo does allow users to show only those flights to San Francisco from Belfast which offer a flexible booking policy as well as other useful filters and features.

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

Once you have performed a search for Belfast to San Francisco flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Yes. momondo can track prices for Belfast to San Francisco flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.