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$386+ Cheap flights from San Francisco (SFO) to Belfast

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/12. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — BHD
Jul 25 — Aug 11
Sat 7/25
Sat 8/1
1 adult, Economy
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Cheap flight deals from San Francisco to Belfast

Cheapest flights from San Francisco to Belfast
Explore the most affordable flight options available from San Francisco to Belfast. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 25, 2026.

This Mytrip deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/96:00 am
SFO
-
BFS
3 stops25h 55m
Multiple Airlines
Sun 9/206:25 am
BFS
-
SFO
3 stops39h 40m
Multiple Airlines
Deal found 6/23$912
This Cheapflightsfares deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/137:30 pm
SFO
-
BHD
1 stop17h 05m
British Airways
Fri 8/216:30 am
BHD
-
SFO
1 stop15h 20m
British Airways
Deal found 6/22$922
This oojo deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/97:30 pm
SFO
-
BHD
1 stop16h 20m
British Airways
Sun 9/203:50 pm
BHD
-
SFO
1 stop30h 00m
British Airways
Deal found 6/23$938
This KLM deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/92:00 pm
SFO
-
BHD
2 stops18h 55m
KLM
Sun 9/209:45 am
BHD
-
SFO
2 stops22h 12m
KLM
Deal found 6/23$975
This Gotogate deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/118:35 pm
SFO
-
BHD
1 stop14h 40m
British Airways
Tue 12/298:45 am
BHD
-
SFO
1 stop14h 10m
British Airways
Deal found 6/22$995
This Mytrip deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/276:00 am
SFO
-
BFS
3 stops31h 35m
Multiple Airlines
Wed 8/57:35 am
BFS
-
SFO
3 stops41h 05m
Multiple Airlines
Deal found 6/23$1,084
This FlightHub deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/274:35 pm
SFO
-
BHD
1 stop14h 55m
British Airways
Wed 8/58:35 pm
BHD
-
SFO
2 stops34h 24m
British Airways
Deal found 6/23$1,102
This Mytrip deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/136:00 am
SFO
-
BHD
3 stops25h 50m
Multiple Airlines
Fri 8/218:10 pm
BHD
-
SFO
2 stops27h 45m
Multiple Airlines
Deal found 6/22$1,108
This Mytrip deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/118:25 am
SFO
-
BFS
3 stops26h 05m
Multiple Airlines
Tue 12/297:05 am
BFS
-
SFO
2 stops16h 30m
Multiple Airlines
Deal found 6/22$1,185
This Mytrip deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/96:40 am
SFO
-
BHD
3 stops21h 15m
Multiple Airlines
Sun 9/208:10 pm
BHD
-
SFO
2 stops27h 40m
Multiple Airlines
Deal found 6/23$1,202
This Mytrip deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/75:35 pm
SFO
-
BFS
2 stops19h 40m
Multiple Airlines
Fri 8/147:20 am
BFS
-
SFO
3 stops36h 40m
Multiple Airlines
Deal found 6/23$1,340
This Mytrip deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/118:30 am
SFO
-
BFS
2 stops26h 25m
Multiple Airlines
Sat 7/259:15 pm
BFS
-
SFO
3 stops46h 06m
Multiple Airlines
Deal found 6/21$1,363

Find flight deals from San Francisco to Belfast

Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to Belfast (BF1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 25, 2026.

Round-trip from

$912
(Mytrip)

One-way from

$386
(Kiwi.com)
From San Francisco to Belfast
Search Deals
One-way flight from San Francisco to Belfast
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Francisco to Belfast that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 25, 2026.
Use the filters below to find and compare flights from San Francisco to Belfast that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

Wed 9/9

8:10 am-1:45 pm

2 stops21h 35m

Belfast Intl

Sun 9/20

6:25 am-2:05 pm

3 stops39h 40m

$933

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Wed 9/9

1:29 pm-3:40 pm

2 stops18h 11m

Belfast City

Sun 9/20

8:10 pm-1:50 pm

1 stop25h 40m

$947

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Thu 8/13

12:16 pm-3:30 pm

2 stops19h 14m

Belfast City

Fri 8/21

6:30 am-1:50 pm

1 stop15h 20m

$947

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Wed 9/9

2:00 pm-4:55 pm

2 stops18h 55m

Belfast City

Sun 9/20

9:45 am-11:57 pm

2 stops22h 12m

$975

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Fri 12/11

1:11 pm-2:15 pm

2 stops17h 04m

Belfast City

Tue 12/29

8:45 am-8:09 pm

2 stops19h 24m

$1,056

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Mon 7/27

4:35 pm-3:30 pm

1 stop14h 55m

Belfast City

Wed 8/5

8:35 pm-10:59 pm

2 stops34h 24m

$1,102

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

Fri 12/11

8:25 am-6:30 pm

3 stops26h 05m

Belfast Intl

Tue 12/29

7:05 am-3:35 pm

2 stops16h 30m

$1,185

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Wed 9/9

6:40 am-11:55 am

3 stops21h 15m

Belfast City

Sun 9/20

8:10 pm-3:50 pm

2 stops27h 40m

$1,202

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Fri 12/11

8:25 am-8:30 pm

3 stops28h 05m

Belfast City

Tue 12/29

7:00 am-3:35 pm

2 stops16h 35m

$1,254
Quickest round-trip

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Sat 12/19

2:03 pm-4:45 pm

2 stops18h 42m

Belfast City

Tue 12/22

8:45 am-2:55 pm

1 stop14h 10m

$1,329

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/24

Showing 1-10 of 19 resultsSorted by cheapest first
1
2

Best time to book a flight from San Francisco to Belfast

Have a flexible travel schedule? Discover the best time to fly to Belfast from San Francisco with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from San Francisco to Belfast
No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Belfast

Get insights into the airlines that provide service to Belfast. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Belfast. Reviews last updated June 25, 2026.
Get a feel of what it's like to fly with British Airways from San Francisco to Belfast by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
British Airways
6.7
Okay
8,072 reviews

Food

6.4

Crew

7.7

Boarding

6.9

Entertainment

6.4

Comfort

6.8

Overall

6.7

Reviews

1 / 20
10.0
Excellent

Anonymous,Jun 2026

IAH - LHR

Airline was good the flight attendant were very helpful and kind. The problem I had is with cheap tickets, my ticket was not allowed one check in baggage this was new to me. I do a lot of traveling overseas and 1 check in baggage is always allowed. Also I bought insurance for my ticket it proved to be useless. I have called several times and spoke to your customer service, not one single person mentioned it to me that baggage was not allowed. All this additional expense was too much for me. I even asked one of your customer service representative I need to buy extra baggage should I buy it now and he told me when you receive check in information you can buy it @ that time never mentioned it to me that my ticket didn’t include baggage. It was very frustrating. I will never use cheap ticket again.
British Airways
6.7
Okay
8,072 reviews
British Airways
6.7
Okay
8,072 reviews

Food

6.4

Crew

7.7

Boarding

6.9

Entertainment

6.4

Comfort

6.8

Overall

6.7

Reviews

1 / 20
10.0
Excellent

Anonymous,Jun 2026

IAH - LHR

Airline was good the flight attendant were very helpful and kind. The problem I had is with cheap tickets, my ticket was not allowed one check in baggage this was new to me. I do a lot of traveling overseas and 1 check in baggage is always allowed. Also I bought insurance for my ticket it proved to be useless. I have called several times and spoke to your customer service, not one single person mentioned it to me that baggage was not allowed. All this additional expense was too much for me. I even asked one of your customer service representative I need to buy extra baggage should I buy it now and he told me when you receive check in information you can buy it @ that time never mentioned it to me that my ticket didn’t include baggage. It was very frustrating. I will never use cheap ticket again.

Related info for your journey

Find useful and relevant information for your journey from San Francisco to Belfast. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    Most people fly from San Francisco (SFO) if they book a flight from San Francisco to Belfast. On average, San Francisco has 0 outbound flights to Belfast per day from 1 airline. San Francisco is conveniently located just 11.0 mi from San Francisco’s city center.

  • How long is the flight from San Francisco to Belfast?

    Departing from San Francisco to Belfast will take you 18h 11m. There are 5038 mi between San Francisco and Belfast. This flight may include one or multiple stops.

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

    Cheapflights users have booked flights from San Francisco to Belfast round-trip from $586.

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

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

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

    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.

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

    Yes. Cheapflights offers flight deals from San Francisco to Belfast 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

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Belfast Intl flights
San Francisco to Belfast Intl flights

Top airline flying from San Francisco to Belfast

Discover the top airline that operate flights from San Francisco to Belfast. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 25, 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$586Average$840FlexibilityNo cancel feeOn-time70%

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