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Cheap flights from Belfast to San Francisco Bay Area from £364

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 13/9. Fares are subject to change and may not be available on all flights or dates of travel.
BHD — SFO
31 Jul — 7 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Belfast to San Francisco Bay Area

Enter your travel dates to find the best prices.

Cheapest flights from Belfast to San Francisco Bay Area
Explore the most affordable flight options available from Belfast to San Francisco Bay Area. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 July 2026.

Fri 13/1108:45
BHD
-
SFO
1 stop17h 50m
British Airways
Thu 26/1117:25
SFO
-
BHD
1 stop17h 25m
British Airways
Deal found 28/6£614
Mon 14/1209:25
BHD
-
SFO
1 stop17h 10m
British Airways
Sun 3/117:25
SFO
-
BHD
1 stop17h 15m
British Airways
Deal found 27/6£643
Fri 4/917:30
BHD
-
SFO
1 stop26h 15m
KLM
Sat 19/915:16
SFO
-
BHD
2 stops17h 39m
KLM
Deal found 30/6£645
Fri 4/906:30
BHD
-
SFO
1 stop15h 20m
British Airways
Fri 18/916:35
SFO
-
BHD
1 stop17h 35m
British Airways
Deal found 30/6£652
Fri 4/906:30
BHD
-
SFO
1 stop15h 20m
American Airlines
Fri 18/910:31
SFO
-
BHD
2 stops20h 59m
American Airlines
Deal found 30/6£670
Fri 4/906:30
BHD
-
SFO
1 stop15h 20m
American Airlines
Sat 19/916:35
SFO
-
BHD
1 stop14h 30m
American Airlines
Deal found 30/6£671
Wed 4/1115:40
BHD
-
SFO
1 stop31h 15m
British Airways
Sun 8/1120:35
SFO
-
BHD
1 stop15h 40m
British Airways
Deal found 26/6£672
Thu 20/821:10
BFS
-
SFO
2 stops27h 05m
Multiple Airlines
Mon 24/819:35
SFO
-
BFS
2 stops18h 50m
Multiple Airlines
Deal found 30/6£704
Thu 20/813:45
BFS
-
SFO
2 stops32h 55m
Multiple Airlines
Sat 29/816:45
SFO
-
BFS
2 stops20h 45m
Multiple Airlines
Deal found 30/6£770
Wed 12/822:45
BFS
-
SFO
3 stops31h 10m
Multiple Airlines
Wed 19/808:10
SFO
-
BFS
3 stops30h 10m
Multiple Airlines
Deal found 28/6£778
Tue 28/705:55
BFS
-
SFO
3 stops36h 50m
Multiple Airlines
Tue 4/808:30
SFO
-
BFS
2 stops27h 20m
Multiple Airlines
Deal found 30/6£838
Mon 17/820:35
BFS
-
SFO
2 stops27h 20m
Multiple Airlines
Mon 31/820:10
SFO
-
BFS
1 stop30h 30m
Multiple Airlines
Deal found 27/6£854

Find flight deals from Belfast to San Francisco Bay Area

Keep the following information in mind while searching for Belfast to San Francisco Bay Area flight deals. Data was last updated 1 July 2026.

Round-trip from

£614

One-way from

£364

Popular in

March

Cheapest in

May

Average price

£832
British Airways
  • British Airways
  • 13/11-26/11
  • 2 total stops
  • 35h 15m total
  • Belfast to San Francisco Bay Area
Search Deals
13/9
  • 13/9
  • 2 total stops
  • 50h 00m total
  • Belfast to San Francisco Bay Area
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (£117 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease (£43 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Belfast to San Francisco Bay Area 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 858,174 searches. Data last updated 1 July 2026.
Use the filters below to find and compare flights from Belfast to San Francisco Bay Area that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Fri 13/11

08:45-20:14

2 stops19h 29m

San Francisco

Thu 26/11

11:24-14:00

2 stops18h 36m

£646

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Fri 4/9

09:50-00:36

2 stops22h 46m

San Francisco

Sat 19/9

15:16-16:55

2 stops17h 39m

£649

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Wed 4/11

17:40-14:55

1 stop29h 15m

San Francisco

Sun 8/11

06:00-13:55

2 stops23h 55m

£672

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Sat 11/7

09:50-23:59

2 stops22h 09m

San Francisco

Wed 22/7

13:45-09:20

1 stop35h 35m

£710

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Mon 27/7

09:50-00:33

2 stops22h 43m

San Francisco

Mon 3/8

09:30-16:55

2 stops23h 25m

£745

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Thu 20/8

13:45-14:40

2 stops32h 55m

San Francisco

Sat 29/8

16:45-21:30

2 stops20h 45m

£770

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Wed 12/8

22:45-21:55

3 stops31h 10m

San Francisco

Wed 19/8

08:10-22:20

3 stops30h 10m

£778

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Tue 28/7

05:55-10:45

3 stops36h 50m

San Francisco

Tue 4/8

08:30-19:50

2 stops27h 20m

£838

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Mon 14/12

17:30-15:35

2 stops30h 05m

San Francisco

Sun 3/1

16:45-17:05

1 stop16h 20m

£888

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Mon 17/8

21:55-12:00

3 stops46h 05m

San Francisco

Mon 31/8

06:40-11:15

3 stops20h 35m

£900

Flights are sorted by cheapest return flights first.

Deals found on 30/6

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

Best time to book a flight from Belfast to San Francisco Bay Area

Have a flexible travel schedule? Discover the best time to fly to San Francisco Bay Area from Belfast with our price prediction graph.
Estimated return 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 Belfast to San Francisco Bay Area
No data available for this route at this time. Please check back soon.

Reviews of airlines servicing San Francisco Bay Area

Get insights into the airlines that provide service to San Francisco Bay Area. 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 San Francisco Bay Area. Reviews last updated 1 July 2026.
See what other customers who have flown with British Airways from Belfast to San Francisco Bay Area have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
British Airways
6.7
Okay
8,087 reviews
Check prices

Overall

6.7

Crew

7.7

Entertainment

6.4

Comfort

6.8

Food

6.4

Boarding

6.9

Reviews

1 / 20
6.0
Good

Anonymous,May 2025

LHR - LAX

We needed assistance (wheelchair, golf cart, whatever ) to get to next gate. We requested it. None was provided.
British Airways
6.7
Okay
8,087 reviews
British Airways
6.7
Okay
8,087 reviews
Check prices

Overall

6.7

Crew

7.7

Entertainment

6.4

Comfort

6.8

Food

6.4

Boarding

6.9

Reviews

1 / 20
6.0
Good

Anonymous,May 2025

LHR - LAX

We needed assistance (wheelchair, golf cart, whatever ) to get to next gate. We requested it. None was provided.

Related info for your journey

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

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

    British Airways, KLM, and Delta can get you from Belfast to San Francisco Bay Area in just under 19h 29m. Your travel time can differ by up to 3h 17m. Airlines will cover a distance of 5038 mi. Both multi-stop and direct flights can be found to your destination and back.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Belfast to San Francisco Bay Area 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top airline flying from Belfast to San Francisco Bay Area

Discover the top airline that operate flights from Belfast to San Francisco Bay Area. 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 858,174 searches. Data last updated 1 July 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£515Average£668FlexibilityNo cancel feeOn-time70%
Search British Airways flights

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How does Cheapflights help users find flights from Belfast to San Francisco Bay Area?

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Can Cheapflights find flights from Belfast to San Francisco Bay Area with no change fees?

Yes! Cheapflights helps users easily find flights from Belfast to San Francisco Bay Area with no change fees.

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Not ready to book yet? You can track prices for flights from Belfast to San Francisco Bay Area on Cheapflights with our Price Alert feature and get notified when better prices are available.

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