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Cheap flights from San Francisco Bay Area to Northern Ireland from £276

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 8/6. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — BFS
3 Feb — 10 Feb1
1 adult
1 adult, Economy, 0 bags

Cheap 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 4 January 2026.

Sat 31/123:13SFO - BHD
2 stops27h 07mBritish Airways
Sat 7/218:00BHD - SFO
1 stop29h 00mBritish Airways
Deal found 3/1£499
Mon 19/114:05SFO - BHD
2 stops18h 45mKLM
Mon 26/117:20BHD - SFO
1 stop26h 30mKLM
Deal found 2/1£500
Thu 5/317:30SFO - BHD
1 stop17h 20mBritish Airways
Mon 9/314:40BHD - SFO
1 stop32h 20mBritish Airways
Deal found 3/1£503
Thu 15/117:30SFO - BHD
1 stop17h 20mBritish Airways
Wed 21/106:35BHD - SFO
1 stop16h 25mBritish Airways
Deal found 2/1£504
Sun 11/1011:30SFO - BHD
2 stops19h 10mBritish Airways
Sun 25/1009:10BHD - SFO
1 stop17h 35mBritish Airways
Deal found 3/1£507
Thu 15/113:55SFO - BHD
1 stop18h 55mKLM
Wed 21/117:20BHD - SFO
1 stop26h 30mKLM
Deal found 3/1£518
Sat 17/115:35SFO - BHD
2 stops20h 05mBritish Airways
Sat 24/109:15BHD - SFO
1 stop13h 45mBritish Airways
Deal found 2/1£520
Sat 21/315:13SFO - BHD
2 stops36h 07mBritish Airways
Sun 5/406:30BHD - SFO
2 stops23h 31mBritish Airways
Deal found 2/1£521
Sat 17/112:50SJC - BHD
2 stops19h 55mBritish Airways
Sat 24/115:05BHD - SJC
2 stops39h 44mBritish Airways
Deal found 2/1£522
Mon 19/112:50SJC - BHD
2 stops19h 15mBritish Airways
Mon 26/119:25BHD - SJC
2 stops34h 04mBritish Airways
Deal found 2/1£584
Sat 31/110:15SFO - BFS
3 stops25h 40mMultiple Airlines
Sat 7/223:10BFS - SFO
3 stops47h 25mMultiple Airlines
Deal found 3/1£628
Sun 11/1007:00OAK - BHD
2 stops19h 30mBritish Airways
Sun 25/1012:10BHD - OAK
2 stops18h 49mBritish Airways
Deal found 3/1£662

Find 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 4 January 2026.

Round-trip from

£499

One-way from

£276

Popular in

June

Cheapest in

April

Average price

£553
British Airways
  • British Airways
  • 31/1-7/2
  • 3 total stops
  • 56h 07m total
  • San Francisco Bay Area to Northern Ireland
Search Deals
British Airways
  • British Airways
  • 8/6
  • 2 total stops
  • 18h 05m total
  • San Francisco Bay Area to Northern Ireland
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£74 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£20 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 4 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

Mon 19/1

14:05-16:50

2 stops18h 45m

Belfast City

Mon 26/1

17:20-11:50

1 stop26h 30m

£500

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Thu 5/3

17:30-18:50

1 stop17h 20m

Belfast City

Mon 9/3

19:25-16:00

1 stop27h 35m

£503

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Wed 25/2

17:30-16:35

1 stop15h 05m

Belfast City

Sun 1/3

09:10-18:45

1 stop17h 35m

£503

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Fri 27/2

20:40-19:15

1 stop14h 35m

Belfast City

Tue 3/3

17:15-15:00

1 stop29h 45m

£503

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Mon 19/1

20:40-18:35

1 stop13h 55m

Belfast City

Mon 26/1

11:30-18:45

1 stop15h 15m

£504

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Sat 17/1

20:40-20:30

1 stop15h 50m

Belfast City

Sat 24/1

06:35-15:00

1 stop16h 25m

£504

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Thu 15/1

17:30-18:50

1 stop17h 20m

Belfast City

Wed 21/1

06:35-15:00

1 stop16h 25m

£504

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Thu 15/1

13:55-16:50

1 stop18h 55m

Belfast City

Wed 21/1

17:20-11:50

1 stop26h 30m

£518

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Sat 31/1

17:30-16:45

1 stop15h 15m

Belfast City

Sat 7/2

18:00-15:00

1 stop29h 00m

£522

San JoseBelfast

SJC - BHD

SJCBHD

San Jose

Mon 19/1

12:50-16:05

2 stops19h 15m

Belfast City

Mon 26/1

19:25-21:29

2 stops34h 04m

£584

Flights are sorted by cheapest return flights first.

Deals found on 4/1

Showing 1-10 of 31 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 £436). Flying from San Francisco Bay Area to Northern Ireland in December is currently the most expensive (average of £815). 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?

    KLM and British Airways can get you from San Francisco Bay Area to Northern Ireland in just under 17h 20m. Your travel time can differ by up to 1h 25m. 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 £436). Flying from San Francisco Bay Area to Northern Ireland in December is currently the most expensive (average of £815). 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

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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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