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

Prices for flights from San Francisco Airport to Belfast Intl Airport refresh daily.

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

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Francisco Airport to Belfast Intl Airport.

What documentation or ID do you need to fly to Belfast Intl Airport?

The travel and health documents you'll need for your trip to Belfast Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Belfast Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

£274 Cheap Flights from San Francisco to Belfast Intl Airport in 2026

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Find the cheapest flights from San Francisco to Belfast

Round-trip

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

12:55 - 23:20

SFO

BFS

26h 25m

2 stops

20:15 - 16:40

BFS

SFO

28h 25m

2 stops

£647Multiple Airlines

Tue, 5 May - Tue, 12 May

17:40 - 21:20

SFO

BFS

19h 40m

2 stops

20:05 - 20:50

BFS

SFO

32h 45m

1 stop

£732Multiple Airlines

Tue, 8 Sep - Thu, 17 Sep

06:00 - 16:20

SFO

BFS

26h 20m

3 stops

23:30 - 14:30

BFS

SFO

47h 00m

3 stops

£737Multiple Airlines

Tue, 2 Jun - Tue, 16 Jun

08:30 - 15:15

SFO

BFS

22h 45m

2 stops

07:35 - 14:35

BFS

SFO

39h 00m

3 stops

£787Multiple Airlines

Tue, 4 Aug - Tue, 18 Aug

11:45 - 16:20

SFO

BFS

20h 35m

2 stops

23:30 - 14:30

BFS

SFO

47h 00m

3 stops

£794Multiple Airlines

Tue, 2 Jun - Tue, 16 Jun

11:10 - 22:30

SFO

BFS

27h 20m

3 stops

07:35 - 14:35

BFS

SFO

39h 00m

3 stops

£815Multiple Airlines

Tue, 4 Aug - Tue, 18 Aug

08:30 - 15:15

SFO

BFS

22h 45m

2 stops

17:10 - 14:35

BFS

SFO

29h 25m

2 stops

£866Multiple Airlines

Tue, 4 Aug - Tue, 18 Aug

11:45 - 16:20

SFO

BFS

20h 35m

2 stops

17:10 - 14:35

BFS

SFO

29h 25m

2 stops

£872Multiple Airlines

Tue, 2 Jun - Tue, 16 Jun

06:00 - 19:05

SFO

BFS

29h 05m

2 stops

21:55 - 15:55

BFS

SFO

26h 00m

2 stops

£931Multiple Airlines

Mon, 1 Jun - Mon, 8 Jun

08:30 - 09:35

SFO

BFS

17h 05m

2 stops

07:10 - 12:00

BFS

SFO

36h 50m

3 stops

£934Multiple Airlines

Sat, 11 Jul - Sun, 26 Jul

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

Tue 5/5

12:55-23:20

2 stops26h 25m

Belfast Intl

Tue 12/5

20:15-16:40

2 stops28h 25m

£647

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

Tue 8/9

17:40-21:20

2 stops19h 40m

Belfast Intl

Thu 17/9

20:05-20:50

1 stop32h 45m

£732

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

Tue 2/6

06:00-16:20

3 stops26h 20m

Belfast Intl

Tue 16/6

23:30-14:30

3 stops47h 00m

£737

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

Tue 4/8

08:30-15:15

2 stops22h 45m

Belfast Intl

Tue 18/8

07:35-14:35

3 stops39h 00m

£787

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

Tue 2/6

11:45-16:20

2 stops20h 35m

Belfast Intl

Tue 16/6

23:30-14:30

3 stops47h 00m

£794

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

Tue 4/8

11:10-22:30

3 stops27h 20m

Belfast Intl

Tue 18/8

07:35-14:35

3 stops39h 00m

£815

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

Tue 4/8

08:30-15:15

2 stops22h 45m

Belfast Intl

Tue 18/8

17:10-14:35

2 stops29h 25m

£866

Fastest return journey

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

Tue 2/6

11:45-16:20

2 stops20h 35m

Belfast Intl

Tue 16/6

17:10-14:35

2 stops29h 25m

£872

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

Mon 1/6

06:00-19:05

2 stops29h 05m

Belfast Intl

Mon 8/6

21:55-15:55

2 stops26h 00m

£931

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

Sat 11/7

08:30-09:35

2 stops17h 05m

Belfast Intl

Sun 26/7

07:10-12:00

3 stops36h 50m

£934

Flights are sorted by cheapest return flights first.

Showing 1-10 of 17 resultsSorted by cheapest first

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

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 Belfast Intl Airport?

The month of April is, on average, the cheapest month to fly to Belfast Intl Airport from San Francisco, with most prices found around £438. If you’re not able to fly to Belfast Intl Airport in April, then February is your next best option. Flight prices from San Francisco to Belfast Intl Airport during February average around £458.

When to book flights from San Francisco to Belfast Intl Airport

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

Estimated return price

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

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

Fastest flight time	14h 30m
Direct flights	None

The fastest flight from San Francisco to Belfast Intl Airport takes 14h 30m

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

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How far is San Francisco to Belfast Intl by plane?
Belfast Intl is 5017.1 mi away from San Francisco. Flights usually cover this in 14h 30m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from San Francisco Airport to Belfast Intl Airport?
Prices for flights from San Francisco Airport to Belfast Intl Airport refresh daily.
How old do you have to be to fly from San Francisco Airport to Belfast Intl Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Francisco Airport to Belfast Intl Airport.
What documentation or ID do you need to fly to Belfast Intl Airport?
The travel and health documents you'll need for your trip to Belfast Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Belfast Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Ballymena

Newry

Armagh

Cookstown

Portadown

Dungannon

Why use momondo?

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

It is quick and easy to find San Francisco to Belfast flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Belfast that suits you.

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

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

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from San Francisco to Belfast.

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

Yes momondo offers price alerts on flights to Belfast from San Francisco. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.