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Belfast Intl

$423+ Cheap flights from San Francisco (SFO) to Belfast Intl (BFS)

SFO — BFS
Nov 5 — Nov 121
Thu 11/5
Thu 11/12
1 adult, Economy
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Cheap flight deals from San Francisco to Belfast Intl

Cheapest flights from San Francisco to Belfast Intl

Mon 11/28:00 pm -
2 stops27h 30m
Wed 11/186:55 am -
1 stop21h 15m
Deal found 10/4$885
Mon 11/164:45 pm -
2 stops21h 35m
Mon 11/232:35 pm -
2 stops32h 15m
Deal found 10/2$973
Tue 11/176:02 am -
3 stops30h 53m
Tue 11/248:45 am -
3 stops38h 00m
Deal found 10/3$987
Mon 11/28:25 am -
3 stops27h 30m
Mon 11/98:40 am -
3 stops22h 21m
Deal found 10/5$1,124

Find flight deals from San Francisco to Belfast Intl

Most accurate provider

Ovago
3 stars

Most trusted provider

Ovago
3 stars

Round-trip from

$885
(Kiwi.com)

One-way from

$423
(Kiwi.com)
Provider with most accurate pricing for San Francisco-Belfast Intl flight deals.
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Provider most trusted by Cheapflights users for San Francisco-Belfast Intl flights.
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From San Francisco to Belfast Intl
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One-way flight from San Francisco to Belfast Intl
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Cheapflights 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 round-trip

San FranciscoBelfast

SFO San Francisco - BFS Belfast Intl

SFOBFS

San Francisco

Tue 3/23

6:20 pm-7:50 am

2 stops30h 30m

Belfast Intl

Wed 12/31

12:00 am-3:00 pm

Nonstop0h 00m

$423
Quickest round-trip

San FranciscoBelfast

SFO San Francisco - BFS Belfast Intl

SFOBFS

San Francisco

Wed 3/24

8:25 pm-8:20 am

2 stops28h 55m

Belfast Intl

Wed 12/31

12:00 am-3:00 pm

Nonstop0h 00m

$443

San FranciscoBelfast

SFO San Francisco - BFS Belfast Intl

SFOBFS

San Francisco

Mon 11/2

8:00 pm-7:30 am

2 stops27h 30m

Belfast Intl

Wed 11/18

6:55 am-8:10 pm

1 stop21h 15m

$885

San FranciscoBelfast

SFO San Francisco - BFS Belfast Intl

SFOBFS

San Francisco

Mon 11/16

4:45 pm-10:20 pm

2 stops21h 35m

Belfast Intl

Mon 11/23

2:35 pm-2:50 pm

2 stops32h 15m

$973

San FranciscoBelfast

SFO San Francisco - BFS Belfast Intl

SFOBFS

San Francisco

Tue 11/17

6:02 am-8:55 pm

3 stops30h 53m

Belfast Intl

Tue 11/24

8:45 am-2:45 pm

3 stops38h 00m

$987

San FranciscoBelfast

SFO San Francisco - BFS Belfast Intl

SFOBFS

San Francisco

Mon 11/2

8:25 am-7:55 pm

3 stops27h 30m

Belfast Intl

Mon 11/9

8:40 am-11:01 pm

3 stops22h 21m

$1,124

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/2

Sorted by cheapest first

Compare providers for flights from San Francisco to Belfast Intl

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Francisco to Belfast Intl in October.
ProviderPrice AccuracyTrust Score*
OvagoPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on San Francisco-Belfast Intl Airport flights, users find the pricing of Ovago to be most consistent on Cheapflights vs. Ovago Users can find the same prices on San Francisco-Belfast Intl Airport flight deals on Cheapflights vs. Ovago >95% of the time. Price accuracy is based on data collected from San Francisco-Belfast Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Francisco-Belfast Intl Airport flights, Cheapflights users trust Ovago the most. Ovago has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Francisco-Belfast Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from San Francisco to Belfast Intl

Have a flexible travel schedule? Discover the best time to fly to Belfast Intl from San Francisco with our price prediction graph.
Estimated round-trip price

Reviews of airlines servicing Belfast Intl

See what other customers who have flown with British Airways from San Francisco to Belfast Intl Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
British Airways
6.7
Okay
8,244 reviews

Crew

7.7

Entertainment

6.5

Food

6.4

Comfort

6.8

Overall

6.7

Boarding

7.0

Reviews

1 / 20
8.0
Excellent

Lakshmi,Dec 2025

SFO - LHR

I had a great time on the flight with good entertainment and food. The staff was awesome. The only thing was there was a delay in boarding and takeoff from London. However, I was pleasantly surprised when the airline sent an apology for the few later landing in Mumbai. They did not have WiFi on board on the leg from London to Mumbai but that was okay for me. On the first leg from SF to London, a couple of seats ahead of me had issues with their display so they could not watch anything on their screens although the stewardess gas be them an option to use the WiFi on their devices. This did not affect me, however, so that was cool. I would recommend British Airways. This was my first time flying with them and I had a lovely flight.
British Airways
6.7
Okay
8,244 reviews
British Airways
6.7
Okay
8,244 reviews

Crew

7.7

Entertainment

6.5

Food

6.4

Comfort

6.8

Overall

6.7

Boarding

7.0

Reviews

1 / 20
8.0
Excellent

Lakshmi,Dec 2025

SFO - LHR

I had a great time on the flight with good entertainment and food. The staff was awesome. The only thing was there was a delay in boarding and takeoff from London. However, I was pleasantly surprised when the airline sent an apology for the few later landing in Mumbai. They did not have WiFi on board on the leg from London to Mumbai but that was okay for me. On the first leg from SF to London, a couple of seats ahead of me had issues with their display so they could not watch anything on their screens although the stewardess gas be them an option to use the WiFi on their devices. This did not affect me, however, so that was cool. I would recommend British Airways. This was my first time flying with them and I had a lovely flight.

Related info for your journey

  • What airport do you fly from for flights from San Francisco to Belfast Intl?

    San Francisco (SFO) is the airport you will fly out of if you book a flight from San Francisco to Belfast Intl. You should not have trouble finding flights to Belfast Intl from San Francisco; the airport handles an average of 0 outbound flights to Belfast Intl per day. You should also have plenty of airline options to choose from since 1 airline has flights from the San Francisco airport to Belfast Intl. It is only a 11.0 mi journey to San Francisco (SFO) from San Francisco’s city center.

  • What is the cheapest airline to fly from San Francisco to Belfast Intl Airport round-trip?

    Currently priced at $586, British Airways will fly you from San Francisco to Belfast Intl Airport and back. In addition to British Airways, many other airlines offer competitively priced options for your trip.

  • Can I find deals for flights from San Francisco to Belfast Intl that include hotel bookings?

    Yes. In addition to deals on San Francisco to Belfast Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Francisco to Belfast Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Francisco to Belfast Intl.

  • Can I find deals for business class flights from San Francisco to Belfast Intl?

    Yes. Cheapflights offers flight deals from San Francisco to Belfast Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Alternative routes for San Francisco to Belfast Intl

Los Angeles to Belfast Intl flights

Top airline flying from San Francisco to Belfast Intl

AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$586Average$873FlexibilityNo cancel feeOn-time70%

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