Cheap flights from San Francisco Bay Area to Northern Ireland from £476

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 21/10. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — BFS
1 Sep — 8 Sep1
1 adult

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 27 August 2025.

Round-trip from

£476

Popular in

January

Cheapest in

October

Average price

£574
21/10-29/10
  • 21/10-29/10
  • 3 total stops
  • 34h 08m total
  • San Francisco Bay Area to Northern Ireland
Highest demand for flights based on searches. 15% potential increase in price (£88 potential increase over avg. return price).
Cheapest flight prices on average. 4% potential price decrease (£23 potential savings vs. average return price).
Average for round-trip flights in August 2025

Find flight deals from San Francisco Bay Area to Northern Ireland

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 27 August 2025.

Tue 21/1019:20SFO - BHD
1 stop16h 05mMultiple Airlines
Wed 29/1012:25BHD - SFO
2 stops18h 03mMultiple Airlines
Deal found 26/8£476
Tue 21/1010:55SFO - BHD
2 stops18h 05mAmerican Airlines
Wed 29/1006:35BHD - SFO
2 stops20h 20mAmerican Airlines
Deal found 26/8£478
Tue 21/1019:20SFO - BHD
1 stop14h 10mBritish Airways
Wed 29/1006:35BHD - SFO
1 stop16h 25mBritish Airways
Deal found 26/8£525
Tue 26/811:40SFO - BHD
2 stops25h 25mDelta
Tue 2/906:30BHD - SFO
1 stop13h 15mDelta
Deal found 24/8£528
Tue 7/1016:20SFO - BFS
3 stops20h 55mMultiple Airlines
Tue 14/1007:25BFS - SFO
3 stops39h 10mMultiple Airlines
Deal found 24/8£535
Wed 3/1213:55SFO - BHD
1 stop23h 05mDelta
Sun 7/1217:20BHD - SFO
1 stop26h 30mDelta
Deal found 25/8£546
Wed 3/1213:55SFO - BHD
1 stop23h 05mVirgin Atlantic
Sun 7/1217:20BHD - SFO
1 stop26h 30mVirgin Atlantic
Deal found 26/8£548
Wed 8/1014:21SJC - BHD
2 stops18h 34mDelta
Sun 12/1017:25BHD - SJC
2 stops33h 56mDelta
Deal found 25/8£557
Wed 8/1006:00SJC - BHD
2 stops25h 35mAmerican Airlines
Sun 12/1013:00BHD - SJC
2 stops35h 54mAmerican Airlines
Deal found 24/8£648
Sat 11/1008:00SJC - BHD
2 stops20h 15mBritish Airways
Fri 17/1020:05BHD - SJC
2 stops28h 48mBritish Airways
Deal found 26/8£762
Tue 26/808:00SJC - BHD
2 stops18h 35mFinnair
Tue 2/920:20BHD - SJC
2 stops32h 48mFinnair
Deal found 24/8£1,040
Thu 18/1217:30SFO - BFS
1 stop16h 05mMultiple Airlines
Tue 6/105:45BFS - SFO
2 stops41h 25mMultiple Airlines
Deal found 24/8£1,047

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 27 August 2025.
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

Tue 21/10

19:20-19:25

1 stop16h 05m

Belfast City

Wed 29/10

12:25-23:28

2 stops18h 03m

£476

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Tue 21/10

10:55-13:00

2 stops18h 05m

Belfast City

Wed 29/10

06:35-19:55

2 stops20h 20m

£478

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Tue 21/10

19:20-17:30

1 stop14h 10m

Belfast City

Wed 29/10

06:35-16:00

1 stop16h 25m

£525

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

Tue 7/10

16:20-21:15

3 stops20h 55m

Belfast Intl

Tue 14/10

07:25-14:35

3 stops39h 10m

£535

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Wed 3/12

13:55-21:00

1 stop23h 05m

Belfast City

Sun 7/12

06:30-11:50

1 stop13h 20m

£546

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Wed 3/12

13:55-21:00

1 stop23h 05m

Belfast City

Sun 7/12

17:20-11:50

1 stop26h 30m

£546

San JoseBelfast

SJC - BHD

SJCBHD

San Jose

Wed 8/10

14:21-16:55

2 stops18h 34m

Belfast City

Sun 12/10

17:25-19:21

2 stops33h 56m

£557

San JoseBelfast

SJC - BHD

SJCBHD

San Jose

Wed 8/10

06:00-15:35

2 stops25h 35m

Belfast City

Sun 12/10

13:00-16:54

2 stops35h 54m

£648

San JoseBelfast

SJC - BHD

SJCBHD

San Jose

Sat 11/10

08:00-12:15

2 stops20h 15m

Belfast City

Fri 17/10

20:05-16:53

2 stops28h 48m

£762

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

Thu 18/12

17:30-17:35

1 stop16h 05m

Belfast Intl

Tue 6/1

05:45-15:10

2 stops41h 25m

£1,047

Flights are sorted by cheapest return flights first.

Deals found on 26/8

Showing 1-10 of 15 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, January is the cheapest month in which you can book a flight from San Francisco Bay Area to Northern Ireland (average of £67). Flying from San Francisco Bay Area to Northern Ireland in July is currently the most expensive (average of £90). 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?

    American Airlines, British Airways, and Virgin Atlantic can get you from San Francisco Bay Area to Northern Ireland in just under 14h 10m. Your travel time can differ by up to 8h 55m. 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, January is the cheapest month in which you can book a flight from San Francisco Bay Area to Northern Ireland (average of £67). Flying from San Francisco Bay Area to Northern Ireland in July is currently the most expensive (average of £90). 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.

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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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