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.

£280 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.

18:20 - 21:30SFO San Francisco-BFS Belfast Intl

20h 10m2 stops Dublin Manchester

07:00 - 14:35BFS Belfast Intl-SFO San Francisco

38h 35m3 stops Bristol Barcelona-El Prat Lisbon Humberto Delgado

£876Multiple Airlines

Fri, 19 Mar - Sat, 27 Mar

18:20 - 18:35SFO San Francisco-BFS Belfast Intl

17h 15m2 stops Dublin London Stansted

14:05 - 14:35BFS Belfast Intl-SFO San Francisco

31h 30m2 stops Geneva Geneve-Cointrin Lisbon Humberto Delgado

£910Multiple Airlines

Fri, 19 Mar - Sat, 27 Mar

19:25 - 23:50SFO San Francisco-BFS Belfast Intl

20h 25m2 stops Zurich Alicante

22:05 - 15:35BFS Belfast Intl-SFO San Francisco

25h 30m2 stops Manchester Dublin

£1,152Multiple Airlines

Fri, 4 Dec - Mon, 7 Dec

19:25 - 23:50SFO San Francisco-BFS Belfast Intl

20h 25m2 stops Zurich Alicante

10:00 - 16:30BFS Belfast Intl-SFO San Francisco

38h 30m3 stops London Stansted Barcelona-El Prat Istanbul

£1,155Multiple Airlines

Fri, 4 Dec - Mon, 7 Dec

19:25 - 23:50SFO San Francisco-BFS Belfast Intl

20h 25m2 stops Zurich Alicante

14:35 - 13:10BFS Belfast Intl-SFO San Francisco

30h 35m1 stop Rome Fiumicino

£1,205Multiple Airlines

Fri, 4 Dec - Mon, 7 Dec

17:20 - 23:15SFO San Francisco-BFS Belfast Intl

21h 55m2 stops Dublin Alicante

23:00 - 15:35BFS Belfast Intl-SFO San Francisco

24h 35m2 stops Manchester Dublin

£1,637Multiple Airlines

Sat, 19 Dec - Sat, 26 Dec

06:15 - 19:40SFO San Francisco-BFS Belfast Intl

29h 25m3 stops Denver Intl Reykjavik Keflavik Intl Edinburgh Turnhouse

19:50 - 15:35BFS Belfast Intl-SFO San Francisco

27h 45m2 stops Edinburgh Turnhouse Dublin

£1,652Multiple Airlines

Sat, 19 Dec - Sat, 26 Dec

06:15 - 14:00SFO San Francisco-BFS Belfast Intl

23h 45m3 stops Denver Intl Reykjavik Keflavik Intl Edinburgh Turnhouse

08:10 - 15:35BFS Belfast Intl-SFO San Francisco

39h 25m3 stops London Gatwick Lisbon Humberto Delgado Dublin

£2,160Multiple Airlines

Sat, 19 Dec - Sat, 26 Dec

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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

San FranciscoBelfast

SFO San Francisco - BFS Belfast Intl

SFOBFS

San Francisco

Fri 19/3

18:20-21:30

2 stops20h 10m

Belfast Intl

Sat 27/3

07:00-14:35

3 stops38h 35m

£876

San FranciscoBelfast

SFO San Francisco - BFS Belfast Intl

SFOBFS

San Francisco

Fri 19/3

18:20-18:35

2 stops17h 15m

Belfast Intl

Sat 27/3

14:05-14:35

2 stops31h 30m

£910

Fastest return journey

San FranciscoBelfast

SFO San Francisco - BFS Belfast Intl

SFOBFS

San Francisco

Fri 4/12

19:25-23:50

2 stops20h 25m

Belfast Intl

Mon 7/12

22:05-15:35

2 stops25h 30m

£1,152

San FranciscoBelfast

SFO San Francisco - BFS Belfast Intl

SFOBFS

San Francisco

Fri 4/12

19:25-23:50

2 stops20h 25m

Belfast Intl

Mon 7/12

10:00-16:30

3 stops38h 30m

£1,155

San FranciscoBelfast

SFO San Francisco - BFS Belfast Intl

SFOBFS

San Francisco

Fri 4/12

19:25-23:50

2 stops20h 25m

Belfast Intl

Mon 7/12

14:35-13:10

1 stop30h 35m

£1,205

San FranciscoBelfast

SFO San Francisco - BFS Belfast Intl

SFOBFS

San Francisco

Sat 19/12

17:20-23:15

2 stops21h 55m

Belfast Intl

Sat 26/12

23:00-15:35

2 stops24h 35m

£1,637

San FranciscoBelfast

SFO San Francisco - BFS Belfast Intl

SFOBFS

San Francisco

Sat 19/12

06:15-19:40

3 stops29h 25m

Belfast Intl

Sat 26/12

19:50-15:35

2 stops27h 45m

£1,652

San FranciscoBelfast

SFO San Francisco - BFS Belfast Intl

SFOBFS

San Francisco

Sat 19/12

06:15-14:00

3 stops23h 45m

Belfast Intl

Sat 26/12

08:10-15:35

3 stops39h 25m

£2,160

Cheapest one-way

San FranciscoBelfast

SFO San Francisco - BFS Belfast Intl

SFOBFS

San Francisco

Tue 23/2

17:20-19:45

2 stops42h 25m

£280

San FranciscoBelfast

SFO San Francisco - BFS Belfast Intl

SFOBFS

San Francisco

Wed 3/2

17:20-07:50

2 stops30h 30m

£281

Flights are sorted by cheapest return flights first.

Showing 1-10 of 18 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	£280
Fastest flight time	15h 30m
Direct flights	None

The best one-way flight to Belfast Intl Airport from San Francisco in the past 72 hours is £280. The best return flight deal from San Francisco to Belfast Intl Airport found on momondo in the last 72 hours is £876.

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

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 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.

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

Dungannon

Portadown

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.