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.

£593 Cheap Flights from Belfast Intl Airport to San Francisco in 2026

Voted winner of Europe's Best Travel App 2023

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.

16:45 - 14:40

BFS

SFO

29h 55m

2 stops

16:45 - 23:05

SFO

BFS

22h 20m

2 stops

£768Multiple Airlines

Fri, 28 Aug - Mon, 31 Aug

16:45 - 14:40

BFS

SFO

29h 55m

3 stops

16:45 - 23:05

SFO

BFS

22h 20m

2 stops

£773Multiple Airlines

Fri, 28 Aug - Mon, 31 Aug

20:15 - 17:35

BFS

SFO

29h 20m

3 stops

08:10 - 15:35

SFO

BFS

23h 25m

3 stops

£789Multiple Airlines

Fri, 28 Aug - Mon, 31 Aug

06:30 - 10:20

BFS

SFO

35h 50m

3 stops

06:00 - 21:35

SFO

BFS

31h 35m

3 stops

£794Multiple Airlines

Mon, 10 Aug - Mon, 17 Aug

21:05 - 12:00

BFS

SFO

46h 55m

3 stops

08:10 - 23:00

SFO

BFS

30h 50m

3 stops

£797Multiple Airlines

Thu, 6 Aug - Thu, 13 Aug

20:35 - 15:27

BFS

SFO

26h 52m

2 stops

08:10 - 11:15

SFO

BFS

19h 05m

2 stops

£801Multiple Airlines

Mon, 20 Jul - Mon, 27 Jul

08:20 - 21:55

BFS

SFO

45h 35m

3 stops

16:05 - 21:45

SFO

BFS

21h 40m

2 stops

£803Multiple Airlines

Thu, 6 Aug - Thu, 13 Aug

07:45 - 16:35

BFS

SFO

15h 50m

2 stops

16:40 - 21:15

SFO

BFS

21h 35m

2 stops

£830Multiple Airlines

Sun, 25 Oct - Mon, 26 Oct

07:30 - 16:35

BFS

SFO

16h 05m

2 stops

08:25 - 20:10

SFO

BFS

28h 45m

3 stops

£831Multiple Airlines

Sun, 25 Oct - Mon, 26 Oct

07:45 - 16:35

BFS

SFO

15h 50m

2 stops

08:25 - 22:20

SFO

BFS

30h 55m

3 stops

£834Multiple Airlines

Sun, 25 Oct - Mon, 26 Oct

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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 - SFO

BFSSFO

Belfast Intl

Fri 28/8

16:45-14:40

2 stops29h 55m

San Francisco

Mon 31/8

16:45-23:05

2 stops22h 20m

£768

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Fri 28/8

16:45-14:40

3 stops29h 55m

San Francisco

Mon 31/8

16:45-23:05

2 stops22h 20m

£773

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Fri 28/8

20:15-17:35

3 stops29h 20m

San Francisco

Mon 31/8

08:10-15:35

3 stops23h 25m

£789

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Mon 10/8

06:30-10:20

3 stops35h 50m

San Francisco

Mon 17/8

06:00-21:35

3 stops31h 35m

£794

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Thu 6/8

21:05-12:00

3 stops46h 55m

San Francisco

Thu 13/8

08:10-23:00

3 stops30h 50m

£797

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Mon 20/7

20:35-15:27

2 stops26h 52m

San Francisco

Mon 27/7

08:10-11:15

2 stops19h 05m

£801

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Thu 6/8

08:20-21:55

3 stops45h 35m

San Francisco

Thu 13/8

16:05-21:45

2 stops21h 40m

£803

Fastest return journey

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Sun 25/10

07:45-16:35

2 stops15h 50m

San Francisco

Mon 26/10

16:40-21:15

2 stops21h 35m

£830

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Sun 25/10

07:30-16:35

2 stops16h 05m

San Francisco

Mon 26/10

08:25-20:10

3 stops28h 45m

£831

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Sun 25/10

07:45-16:35

2 stops15h 50m

San Francisco

Mon 26/10

08:25-22:20

3 stops30h 55m

£834

Flights are sorted by cheapest return flights first.

Showing 1-10 of 12 resultsSorted by cheapest first

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

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 month to fly to San Francisco?

The month of November is, on average, the cheapest month to fly to San Francisco from Belfast Intl Airport, with most prices found around £0. If you are unable to visit San Francisco during the month of November, then departing from Belfast Intl Airport during the month January is also very affordable. Most momondo users find prices during this month for around £0.

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

Fastest flight time	17h 50m
Direct flights	None

The fastest flight from Belfast Intl Airport to San Francisco takes 17h 50m

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 17h 50m 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.

South San Francisco

Sunnyvale

Santa Cruz

Rohnert Park

Windsor

Belmont

Big Sur

Capitola

Sausalito

San Bruno

Woodland

Pacific Grove

Newark

Aptos

Mill Valley

Campbell

Palo Alto

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.