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Cheap flights from San Francisco Bay Area to Northern Ireland from £132

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 10/3. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — BFS
17 Feb — 24 Feb1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from San Francisco Bay Area to Northern Ireland

Keep the following information in mind while searching for San Francisco Bay Area to Northern Ireland flight deals. Data was last updated 18 January 2026.

Round-trip from

£428

One-way from

£132

Popular in

June

Cheapest in

April

Average price

£568
British Airways
  • British Airways
  • 1/3-17/3
  • 2 total stops
  • 32h 00m total
  • San Francisco Bay Area to Northern Ireland
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British Airways
  • British Airways
  • 10/3
  • 2 total stops
  • 16h 37m total
  • San Francisco Bay Area to Northern Ireland
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£67 potential increase over avg. return price).
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Cheapest flight prices on average. 4% potential price decrease (£21 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 2026
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Find flight deals from San Francisco Bay Area to Northern Ireland

Enter your travel dates to find the best prices.

Cheapest flights from San Francisco Bay Area to Northern Ireland
Explore the most affordable flight options available from San Francisco Bay Area to Northern Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 January 2026.

Sun 1/320:40
SFO
-
BHD
1 stop15h 35m
British Airways
Tue 17/306:35
BHD
-
SFO
1 stop16h 25m
British Airways
Deal found 18/1£428
Mon 30/319:30
SFO
-
BHD
1 stop15h 55m
British Airways
Tue 7/419:30
BHD
-
SFO
1 stop26h 20m
British Airways
Deal found 16/1£441
Sun 1/318:20
SFO
-
BHD
2 stops17h 55m
American Airlines
Tue 17/310:00
BHD
-
SFO
2 stops19h 32m
American Airlines
Deal found 18/1£456
Sun 1/314:07
SJC
-
BHD
2 stops18h 43m
British Airways
Tue 17/311:25
BHD
-
SJC
2 stops29h 46m
British Airways
Deal found 18/1£464
Wed 4/306:15
SFO
-
BHD
2 stops20h 00m
British Airways
Sun 8/317:35
BHD
-
SFO
1 stop33h 10m
British Airways
Deal found 18/1£464
Wed 25/217:30
SFO
-
BHD
1 stop15h 05m
British Airways
Sun 1/309:10
BHD
-
SFO
1 stop13h 50m
British Airways
Deal found 15/1£468
Wed 4/314:07
SJC
-
BHD
2 stops18h 28m
British Airways
Sun 8/317:35
BHD
-
SJC
2 stops35h 57m
British Airways
Deal found 17/1£479
Mon 30/315:13
SFO
-
BHD
2 stops18h 17m
American Airlines
Tue 7/413:45
BHD
-
SFO
2 stops16h 42m
American Airlines
Deal found 16/1£483
Sun 8/214:32
SJC
-
BHD
2 stops18h 18m
British Airways
Sat 14/218:00
BHD
-
SJC
2 stops36h 31m
British Airways
Deal found 15/1£513
Fri 27/211:01
SJC
-
BHD
2 stops24h 14m
British Airways
Tue 3/315:05
BHD
-
SJC
2 stops39h 26m
British Airways
Deal found 15/1£526
Sun 1/319:25
SFO
-
BFS
2 stops33h 50m
Multiple Airlines
Tue 17/317:30
BFS
-
SFO
1 stop34h 40m
Multiple Airlines
Deal found 18/1£582
Tue 24/314:26
SJC
-
BHD
2 stops19h 19m
British Airways
Sat 4/407:05
BHD
-
SJC
2 stops22h 16m
British Airways
Deal found 16/1£590

Cheapflights Fare Finder

 
Customise your flight search to find flights from San Francisco Bay Area to Northern Ireland 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 18 January 2026.
Use the filters below to find and compare flights from San Francisco Bay Area to Northern Ireland that are best for you.

Fly from

San Francisco Bay Area

Fly to

Northern Ireland

Route

Depart

Return

Price

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Sun 1/3

20:40-20:15

1 stop15h 35m

Belfast City

Tue 17/3

06:35-16:00

1 stop16h 25m

£428

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Mon 30/3

19:30-19:25

1 stop15h 55m

Belfast City

Tue 7/4

19:30-13:50

1 stop26h 20m

£441

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Sun 1/3

18:20-20:15

2 stops17h 55m

Belfast City

Tue 17/3

10:00-22:32

2 stops19h 32m

£456

San JoseBelfast

SJC - BHD

SJCBHD

San Jose

Sun 1/3

14:07-16:50

2 stops18h 43m

Belfast City

Tue 17/3

11:25-10:11

2 stops29h 46m

£464

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Wed 4/3

06:15-10:15

2 stops20h 00m

Belfast City

Sun 8/3

17:35-19:45

1 stop33h 10m

£464

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Wed 25/2

17:30-16:35

1 stop15h 05m

Belfast City

Sun 1/3

09:10-15:00

1 stop13h 50m

£468

San JoseBelfast

SJC - BHD

SJCBHD

San Jose

Wed 4/3

11:01-16:35

2 stops21h 34m

Belfast City

Sun 8/3

17:35-22:32

2 stops35h 57m

£479

San JoseBelfast

SJC - BHD

SJCBHD

San Jose

Sun 8/2

14:32-16:50

2 stops18h 18m

Belfast City

Sat 14/2

18:00-22:31

2 stops36h 31m

£513

San JoseBelfast

SJC - BHD

SJCBHD

San Jose

Fri 27/2

11:01-19:15

2 stops24h 14m

Belfast City

Tue 3/3

15:05-22:31

2 stops39h 26m

£526

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

Sun 1/3

19:25-13:15

2 stops33h 50m

Belfast Intl

Tue 17/3

17:30-21:10

1 stop34h 40m

£582

Flights are sorted by cheapest return flights first.

Deals found on 16/1

Showing 1-10 of 26 results
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Best time to book a flight from San Francisco Bay Area to Northern Ireland

Have a flexible travel schedule? Discover the best time to fly to Northern Ireland from San Francisco Bay Area 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 San Francisco Bay Area to Northern Ireland

What is the cheapest month to book a flight from San Francisco Bay Area to Northern Ireland?

Currently, April is the cheapest month in which you can book a flight from San Francisco Bay Area to Northern Ireland (average of £439). Flying from San Francisco Bay Area to Northern Ireland in December is currently the most expensive (average of £820). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

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

    British Airways and American Airlines can get you from San Francisco Bay Area to Northern Ireland in just under 15h 35m. Your travel time can differ by up to 2h 20m. The distance between San Francisco Bay Area and Northern Ireland is about 5038 mi. This flight may include one or multiple stops.

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

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

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

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

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

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

  • What is the cheapest month to book a flight from San Francisco Bay Area to Northern Ireland?

    Currently, April is the cheapest month in which you can book a flight from San Francisco Bay Area to Northern Ireland (average of £439). Flying from San Francisco Bay Area to Northern Ireland in December is currently the most expensive (average of £820). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for San Francisco Bay Area to Northern Ireland

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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 San Francisco Bay Area to Northern Ireland?

Deals for San Francisco Bay Area to Northern Ireland 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 San Francisco Bay Area to Northern Ireland?

Millions of users choose and trust Cheapflights to book the best flight deals from San Francisco Bay Area to Northern Ireland for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

Need flexible booking options for your flight to Northern Ireland from San Francisco Bay Area? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Yes, Cheapflights offers price alerts on San Francisco Bay Area to Northern Ireland flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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