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

Search flight deals from San Francisco to Belfast Intl Airport . While viewing offers you’ll have the option to create a Price Alert.

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

By using tools like our “Price Calendar”, you can see the best days for return flights on your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.

How does momondo find its flight prices?

We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

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.

£254 Cheap Flights from San Francisco to Belfast Intl Airport in 2026/27

Find the cheapest flights from San Francisco to Belfast

Return

One-way

Cheap return flights

Enter your travel dates to find the best prices.

17:35 - 20:40SFO San Francisco-BFS Belfast Intl

19h 05m2 stops Dublin Glasgow Intl

06:20 - 15:35BFS Belfast Intl-SFO San Francisco

17h 15m2 stops Glasgow Intl Dublin

£655Multiple Airlines

Mon, 19 Oct - Mon, 2 Nov

19:25 - 21:55SFO San Francisco-BFS Belfast Intl

18h 30m2 stops Zurich London Gatwick

14:30 - 16:30BFS Belfast Intl-SFO San Francisco

34h 00m2 stops London Gatwick Zurich

£681Multiple Airlines

Thu, 5 Nov - Thu, 12 Nov

06:00 - 15:35SFO San Francisco-BFS Belfast Intl

25h 35m3 stops Denver Intl Reykjavik Keflavik Intl Manchester

20:50 - 12:35BFS Belfast Intl-SFO San Francisco

23h 45m2 stops London Gatwick Frankfurt am Main

£699Multiple Airlines

Mon, 19 Oct - Mon, 2 Nov

06:02 - 19:10SFO San Francisco-BFS Belfast Intl

29h 08m3 stops Denver Intl Reykjavik Keflavik Intl Glasgow Intl

08:50 - 16:05BFS Belfast Intl-SFO San Francisco

39h 15m3 stops London Luton Madrid Barajas Lisbon Humberto Delgado

£716Multiple Airlines

Thu, 5 Nov - Thu, 12 Nov

20:30 - 10:40SFO San Francisco-BFS Belfast Intl

30h 10m1 stop Paris Orly

09:55 - 14:50BFS Belfast Intl-SFO San Francisco

36h 55m2 stops Amsterdam Schiphol Kastrup Copenhagen

£721Multiple Airlines

Mon, 19 Oct - Mon, 2 Nov

14:40 - 00:05SFO San Francisco-BFS Belfast Intl

25h 25m3 stops Frankfurt am Main Munich Franz Josef Strauss Malaga

20:00 - 17:30BFS Belfast Intl-SFO San Francisco

28h 30m2 stops Malaga Zurich

£733Multiple Airlines

Mon, 19 Oct - Sun, 25 Oct

19:25 - 22:15SFO San Francisco-BFS Belfast Intl

18h 50m2 stops Zurich Birmingham

08:50 - 16:05BFS Belfast Intl-SFO San Francisco

39h 15m3 stops London Luton Madrid Barajas Lisbon Humberto Delgado

£830Multiple Airlines

Thu, 5 Nov - Thu, 12 Nov

20:30 - 10:40SFO San Francisco-BFS Belfast Intl

30h 10m1 stop Paris Orly

21:15 - 12:45BFS Belfast Intl-SFO San Francisco

46h 30m2 stops London Luton Toronto Pearson Intl

£835Multiple Airlines

Mon, 19 Oct - Sun, 25 Oct

06:00 - 16:15SFO San Francisco-BFS Belfast Intl

26h 15m3 stops Denver Intl Reykjavik Keflavik Intl Glasgow Intl

09:25 - 11:05BFS Belfast Intl-SFO San Francisco

32h 40m3 stops London Gatwick Orlando Denver Intl

£856Multiple Airlines

Mon, 19 Oct - Sun, 25 Oct

06:00 - 19:05SFO San Francisco-BFS Belfast Intl

29h 05m2 stops Calgary Paris Charles de Gaulle

20:00 - 15:25BFS Belfast Intl-SFO San Francisco

26h 25m2 stops Malaga Lisbon Humberto Delgado

£870Multiple Airlines

Mon, 19 Oct - Sun, 25 Oct

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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

Fastest return journey

San FranciscoBelfast

SFO San Francisco - BFS Belfast Intl

SFOBFS

San Francisco

Mon 19/10

17:35-20:40

2 stops19h 05m

Belfast Intl

Mon 2/11

06:20-15:35

2 stops17h 15m

£655

San FranciscoBelfast

SFO San Francisco - BFS Belfast Intl

SFOBFS

San Francisco

Thu 5/11

19:25-21:55

2 stops18h 30m

Belfast Intl

Thu 12/11

14:30-16:30

2 stops34h 00m

£681

San FranciscoBelfast

SFO San Francisco - BFS Belfast Intl

SFOBFS

San Francisco

Mon 19/10

06:00-15:35

3 stops25h 35m

Belfast Intl

Mon 2/11

20:50-12:35

2 stops23h 45m

£699

San FranciscoBelfast

SFO San Francisco - BFS Belfast Intl

SFOBFS

San Francisco

Thu 5/11

06:02-19:10

3 stops29h 08m

Belfast Intl

Thu 12/11

08:50-16:05

3 stops39h 15m

£716

San FranciscoBelfast

SFO San Francisco - BFS Belfast Intl

SFOBFS

San Francisco

Mon 19/10

20:30-10:40

1 stop30h 10m

Belfast Intl

Mon 2/11

09:55-14:50

2 stops36h 55m

£721

San FranciscoBelfast

SFO San Francisco - BFS Belfast Intl

SFOBFS

San Francisco

Mon 19/10

14:40-00:05

3 stops25h 25m

Belfast Intl

Sun 25/10

20:00-17:30

2 stops28h 30m

£733

San FranciscoBelfast

SFO San Francisco - BFS Belfast Intl

SFOBFS

San Francisco

Thu 5/11

19:25-22:15

2 stops18h 50m

Belfast Intl

Thu 12/11

08:50-16:05

3 stops39h 15m

£830

San FranciscoBelfast

SFO San Francisco - BFS Belfast Intl

SFOBFS

San Francisco

Mon 19/10

20:30-10:40

1 stop30h 10m

Belfast Intl

Sun 25/10

21:15-12:45

2 stops46h 30m

£835

San FranciscoBelfast

SFO San Francisco - BFS Belfast Intl

SFOBFS

San Francisco

Mon 19/10

06:00-16:15

3 stops26h 15m

Belfast Intl

Sun 25/10

09:25-11:05

3 stops32h 40m

£856

San FranciscoBelfast

SFO San Francisco - BFS Belfast Intl

SFOBFS

San Francisco

Mon 19/10

06:00-19:05

2 stops29h 05m

Belfast Intl

Sun 25/10

20:00-15:25

2 stops26h 25m

£870

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Best price found	£254
Fastest flight time	15h 15m
Direct flights	None

The best one-way flight to Belfast Intl Airport from San Francisco in the past 72 hours is £254. The best return flight deal from San Francisco to Belfast Intl Airport found on momondo in the last 72 hours is £655.

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

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.

Search flight deals

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

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 15h 15m, 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.

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

How do I get Price Alerts for flights from San Francisco to Belfast Intl Airport?
Search flight deals from San Francisco to Belfast Intl Airport. While viewing offers you’ll have the option to create a Price Alert.
How can I save money on flights from San Francisco to Belfast Intl Airport with momondo?
By using tools like our “Price Calendar”, you can see the best days for return flights on your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.
How does momondo find its flight prices?
We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

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.