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Cheap flights from Northern Ireland to San Francisco Bay Area from £608

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/5. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — SFO
9 May — 16 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Northern Ireland to San Francisco Bay Area

Enter your travel dates to find the best prices.

Cheapest flights from Northern Ireland to San Francisco Bay Area
Explore the most affordable flight options available from Northern Ireland to San Francisco Bay Area. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 9 April 2026.

Tue 5/512:40
BHD
-
SFO
2 stops19h 19m
British Airways
Tue 12/519:30
SFO
-
BHD
1 stop14h 05m
British Airways
Deal found 7/4£608
Wed 19/811:35
BHD
-
SFO
1 stop13h 55m
British Airways
Thu 10/916:36
SFO
-
BHD
2 stops18h 49m
British Airways
Deal found 7/4£650
Thu 5/1106:35
BHD
-
SFO
1 stop16h 25m
British Airways
Mon 9/1120:40
SFO
-
BHD
1 stop15h 35m
British Airways
Deal found 5/4£653
Wed 19/810:05
BHD
-
SFO
2 stops19h 11m
British Airways
Mon 14/911:35
SFO
-
BHD
2 stops17h 20m
British Airways
Deal found 7/4£654
Tue 5/508:00
BFS
-
SFO
1 stop15h 45m
Multiple Airlines
Tue 12/523:15
SFO
-
BFS
1 stop15h 55m
Multiple Airlines
Deal found 7/4£677
Thu 21/512:45
BFS
-
SFO
2 stops33h 55m
Multiple Airlines
Thu 28/516:45
SFO
-
BFS
2 stops20h 55m
Multiple Airlines
Deal found 6/4£776
Thu 7/515:35
BFS
-
SFO
2 stops31h 05m
Multiple Airlines
Thu 14/516:45
SFO
-
BFS
3 stops21h 00m
Multiple Airlines
Deal found 9/4£792
Sat 23/516:55
BFS
-
SFO
2 stops29h 45m
Multiple Airlines
Sat 30/516:45
SFO
-
BFS
2 stops20h 45m
Multiple Airlines
Deal found 8/4£811
Sat 16/508:45
BFS
-
SFO
3 stops44h 40m
Multiple Airlines
Sat 30/506:00
SFO
-
BFS
3 stops30h 20m
Multiple Airlines
Deal found 9/4£871

Find flight deals from Northern Ireland to San Francisco Bay Area

Keep the following information in mind while searching for Northern Ireland to San Francisco Bay Area flight deals. Data was last updated 9 April 2026.

Round-trip from

£608

Popular in

March

Cheapest in

September

Average price

£587
British Airways
  • British Airways
  • 5/5-12/5
  • 3 total stops
  • 33h 24m total
  • Northern Ireland to San Francisco Bay Area
Search Deals
Highest demand for flights based on searches. 21% potential increase in price (£149 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 9% potential price decrease (£47 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Northern Ireland 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 9 April 2026.
Use the filters below to find and compare flights from Northern Ireland to San Francisco Bay Area that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Tue 18/8

19:30-13:50

1 stop26h 20m

San Francisco

Mon 14/9

16:35-15:30

1 stop14h 55m

£673

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Wed 26/8

06:30-13:50

1 stop15h 20m

San Francisco

Sun 30/8

21:45-08:50

2 stops27h 05m

£673
Fastest return journey

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Tue 5/5

08:00-15:45

1 stop15h 45m

San Francisco

Tue 12/5

23:15-23:10

1 stop15h 55m

£677

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Thu 10/9

09:35-13:50

1 stop36h 15m

San Francisco

Mon 14/9

11:35-15:30

2 stops19h 55m

£683

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Mon 27/7

18:30-13:50

1 stop27h 20m

San Francisco

Tue 18/8

08:49-10:45

2 stops17h 56m

£686

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Tue 28/7

06:30-13:50

1 stop15h 20m

San Francisco

Mon 17/8

16:35-17:30

1 stop16h 55m

£686

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Thu 21/5

12:45-14:40

2 stops33h 55m

San Francisco

Thu 28/5

16:45-21:40

2 stops20h 55m

£776

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Sat 23/5

07:20-12:00

3 stops36h 40m

San Francisco

Sat 30/5

06:00-22:40

3 stops32h 40m

£811

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Thu 7/5

15:25-16:50

2 stops33h 25m

San Francisco

Thu 14/5

12:55-23:25

2 stops26h 30m

£903

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Tue 28/7

23:30-12:00

3 stops44h 30m

San Francisco

Wed 19/8

17:40-22:20

2 stops20h 40m

£932

Flights are sorted by cheapest return flights first.

Deals found on 7/4

Showing 1-10 of 11 resultsSorted by cheapest first
1
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Best time to book a flight from Northern Ireland to San Francisco Bay Area

Have a flexible travel schedule? Discover the best time to fly to San Francisco Bay Area from Northern Ireland 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 Northern Ireland to San Francisco Bay Area
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Northern Ireland 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 Northern Ireland to San Francisco Bay Area?

    There are many flights that can get you from Northern Ireland to San Francisco Bay Area in 26h 20m. Fly via British Airways to get the fastest option. There are 5038 mi between Northern Ireland and San Francisco Bay Area.

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

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

  • How can I find direct flights from Northern Ireland 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 Northern Ireland to San Francisco Bay Area.

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

    Yes. Cheapflights offers flight deals from Northern Ireland 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

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Alternative routes for Northern Ireland to San Francisco Bay Area

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Northern Ireland to San Francisco Bay Area

Discover the top 2 airlines that operate flights from Northern Ireland 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 9 April 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£427Average£590FlexibilityNo cancel feeOn-time70%
Search British Airways flights
American AirlinesCheapest£472Average£523FlexibilityNo cancel feeOn-time71%
Search American Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

Deals for Northern Ireland to San Francisco Bay Area flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Northern Ireland to San Francisco Bay Area?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Northern Ireland to San Francisco Bay Area.

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from Northern Ireland to San Francisco Bay Area, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Northern Ireland to San Francisco Bay Area become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to San Francisco Bay Area from Northern Ireland today and book when prices fit your budget.

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