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Cheap flights from Northern Ireland to San Francisco Bay Area from £338

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 31/8. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — SFO
4 Jul — 11 Jul1
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 4 June 2026.

Wed 26/811:35
BHD
-
SFO
1 stop13h 55m
American Airlines
Fri 4/915:46
SFO
-
BHD
2 stops20h 49m
American Airlines
Deal found 4/6£632
Tue 25/809:40
BHD
-
SFO
2 stops22h 05m
American Airlines
Fri 4/915:46
SFO
-
BHD
2 stops20h 49m
American Airlines
Deal found 4/6£636
Tue 25/816:25
BHD
-
SFO
1 stop29h 25m
British Airways
Fri 4/911:00
SFO
-
BHD
2 stops20h 30m
British Airways
Deal found 4/6£666
Fri 28/806:30
BHD
-
SFO
2 stops21h 18m
American Airlines
Fri 4/916:35
SFO
-
BHD
1 stop17h 35m
American Airlines
Deal found 4/6£666
Thu 2/709:50
BHD
-
SFO
2 stops23h 09m
Delta
Thu 9/708:55
SFO
-
BHD
2 stops24h 00m
Delta
Deal found 4/6£683
Sun 30/809:50
BHD
-
SFO
2 stops21h 54m
Delta
Fri 4/922:35
SFO
-
BHD
2 stops26h 40m
Delta
Deal found 4/6£712
Mon 29/607:00
BHD
-
SFO
2 stops25h 52m
Multiple Airlines
Mon 6/706:15
SFO
-
BHD
2 stops23h 25m
Multiple Airlines
Deal found 1/6£735
Mon 29/608:25
BFS
-
SFO
2 stops22h 30m
Multiple Airlines
Mon 6/717:38
SFO
-
BFS
2 stops20h 57m
Multiple Airlines
Deal found 1/6£737
Fri 28/811:25
BFS
-
SFO
1 stop34h 25m
Multiple Airlines
Fri 4/917:35
SFO
-
BFS
2 stops19h 40m
Multiple Airlines
Deal found 4/6£738
Thu 2/720:35
BHD
-
SFO
1 stop25h 15m
Multiple Airlines
Thu 9/719:30
SFO
-
BHD
1 stop17h 05m
Multiple Airlines
Deal found 4/6£821
Sun 28/617:45
BHD
-
SFO
2 stops33h 10m
KLM
Sun 5/717:25
SFO
-
BHD
2 stops31h 55m
KLM
Deal found 31/5£833
Wed 26/806:15
BFS
-
SFO
1 stop22h 35m
Multiple Airlines
Fri 4/917:35
SFO
-
BFS
2 stops19h 25m
Multiple Airlines
Deal found 4/6£848

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 4 June 2026.

Round-trip from

£735

One-way from

£338

Popular in

March

Cheapest in

August

Average price

£554
29/6-6/7
  • 29/6-6/7
  • 4 total stops
  • 49h 17m total
  • Northern Ireland to San Francisco Bay Area
Search Deals
31/8
  • 31/8
  • 3 total stops
  • 55h 55m total
  • Northern Ireland to San Francisco Bay Area
Search Deals
Highest demand for flights based on searches. 20% potential increase in price (£141 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 9% potential price decrease (£46 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 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 4 June 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 25/8

16:25-13:50

1 stop29h 25m

San Francisco

Fri 4/9

11:00-15:30

2 stops20h 30m

£666

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Thu 2/7

17:30-16:26

2 stops30h 56m

San Francisco

Thu 9/7

13:45-16:55

1 stop19h 10m

£683

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Thu 2/7

09:50-00:59

2 stops23h 09m

San Francisco

Thu 9/7

08:55-16:55

2 stops24h 00m

£683

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Sun 30/8

09:50-23:44

2 stops21h 54m

San Francisco

Fri 4/9

22:35-09:15

2 stops26h 40m

£712

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Mon 29/6

07:00-00:52

2 stops25h 52m

San Francisco

Mon 6/7

06:15-13:40

2 stops23h 25m

£735

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Mon 29/6

08:25-22:55

2 stops22h 30m

San Francisco

Mon 6/7

17:38-22:35

2 stops20h 57m

£737

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Wed 26/8

06:15-20:50

1 stop22h 35m

San Francisco

Fri 4/9

17:35-21:00

2 stops19h 25m

£848

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Mon 29/6

14:35-13:50

1 stop31h 15m

San Francisco

Mon 6/7

19:30-19:25

1 stop15h 55m

£857

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Sun 28/6

22:10-19:10

1 stop29h 00m

San Francisco

Sun 5/7

19:50-23:10

1 stop19h 20m

£887

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Tue 25/8

21:20-15:55

2 stops26h 35m

San Francisco

Fri 4/9

15:05-14:25

1 stop15h 20m

£909

Flights are sorted by cheapest return flights first.

Deals found on 3/6

Showing 1-10 of 35 resultsSorted by cheapest first
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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 23h 09m. Fly via British Airways, KLM, or Delta to get the fastest option. There are 5038 mi between Northern Ireland and San Francisco Bay Area. Both multi-stop and direct flights can be found to your destination and back.

  • 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 airline flying from Northern Ireland to San Francisco Bay Area

Discover the top airline 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 4 June 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£504Average£639FlexibilityNo cancel feeOn-time70%
Search British Airways 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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