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Cheap flights from San Francisco Bay Area to Northern Ireland from £152

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 19/7. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — BFS
19 Mar — 26 Mar1
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 17 February 2026.

Sat 21/213:55
SFO
-
BHD
1 stop18h 55m
Delta
Fri 6/306:30
BHD
-
SFO
1 stop13h 20m
Delta
Deal found 14/2£516
Wed 4/317:30
SFO
-
BHD
1 stop15h 05m
British Airways
Sun 8/320:25
BHD
-
SFO
1 stop26h 35m
British Airways
Deal found 16/2£522
Thu 5/317:30
SFO
-
BHD
1 stop33h 00m
British Airways
Mon 9/319:25
BHD
-
SFO
1 stop27h 35m
British Airways
Deal found 16/2£529
Sat 28/321:55
SFO
-
BHD
2 stops26h 45m
British Airways
Wed 8/406:30
BHD
-
SFO
1 stop15h 20m
British Airways
Deal found 17/2£562
Wed 27/511:47
SFO
-
BHD
2 stops17h 48m
British Airways
Thu 4/612:45
BHD
-
SFO
1 stop33h 05m
British Airways
Deal found 15/2£621
Wed 27/513:45
SFO
-
BHD
1 stop19h 10m
Multiple Airlines
Thu 4/609:50
BHD
-
SFO
1 stop33h 55m
Multiple Airlines
Deal found 15/2£639
Sat 28/318:30
SFO
-
BHD
1 stop15h 45m
Multiple Airlines
Wed 8/406:30
BHD
-
SFO
1 stop19h 00m
Multiple Airlines
Deal found 17/2£660
Wed 4/311:01
SJC
-
BHD
2 stops21h 34m
British Airways
Sun 8/320:25
BHD
-
SJC
2 stops33h 31m
British Airways
Deal found 15/2£680
Sat 28/317:35
SFO
-
BFS
1 stop34h 45m
Multiple Airlines
Wed 8/412:25
BFS
-
SFO
2 stops37h 30m
Multiple Airlines
Deal found 17/2£712
Fri 27/206:00
SJC
-
BHD
2 stops20h 30m
British Airways
Tue 3/306:35
BHD
-
SJC
2 stops24h 21m
British Airways
Deal found 14/2£778
Sat 28/318:25
SJC
-
BHD
2 stops38h 30m
Delta
Wed 8/409:50
BHD
-
SJC
2 stops34h 18m
Delta
Deal found 17/2£782
Sat 28/312:35
OAK
-
BHD
2 stops20h 20m
Delta
Wed 8/409:50
BHD
-
OAK
2 stops38h 10m
Delta
Deal found 17/2£819

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 17 February 2026.

Round-trip from

£522

One-way from

£152

Popular in

June

Cheapest in

October

Average price

£519
British Airways
  • British Airways
  • 4/3-8/3
  • 2 total stops
  • 45h 25m total
  • San Francisco Bay Area to Northern Ireland
Search Deals
British Airways
  • British Airways
  • 19/7
  • 2 total stops
  • 18h 48m total
  • San Francisco Bay Area to Northern Ireland
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£71 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 February 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 17 February 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

Wed 4/3

17:30-16:35

1 stop15h 05m

Belfast City

Sun 8/3

20:25-19:45

1 stop30h 20m

£522

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Thu 5/3

17:30-08:25

1 stop30h 55m

Belfast City

Mon 9/3

14:40-16:00

1 stop32h 20m

£529

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Wed 27/5

12:36-13:35

2 stops16h 59m

Belfast City

Thu 4/6

06:30-13:50

1 stop15h 20m

£621

San JoseBelfast

SJC - BHD

SJCBHD

San Jose

Wed 4/3

11:01-16:35

2 stops21h 34m

Belfast City

Sun 8/3

20:25-22:56

2 stops33h 31m

£680

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

Sat 28/3

17:35-11:20

1 stop34h 45m

Belfast Intl

Wed 8/4

12:25-17:55

2 stops37h 30m

£712

San JoseBelfast

SJC - BHD

SJCBHD

San Jose

Fri 27/2

06:00-10:30

2 stops20h 30m

Belfast City

Tue 3/3

06:35-22:56

2 stops24h 21m

£778

San JoseBelfast

SJC - BHD

SJCBHD

San Jose

Sat 28/3

18:25-16:55

2 stops38h 30m

Belfast City

Wed 8/4

09:50-12:08

2 stops34h 18m

£782

OaklandBelfast

OAK - BHD

OAKBHD

Oakland

Sat 28/3

12:35-15:55

2 stops20h 20m

Belfast City

Wed 8/4

09:50-16:00

2 stops38h 10m

£819

San JoseBelfast

SJC - BHD

SJCBHD

San Jose

Wed 27/5

11:48-13:35

2 stops17h 47m

Belfast City

Thu 4/6

06:30-18:14

2 stops19h 44m

£820

OaklandBelfast

OAK - BHD

OAKBHD

Oakland

Fri 27/2

09:54-19:15

2 stops25h 21m

Belfast City

Tue 3/3

06:35-16:37

2 stops18h 02m

£843

Flights are sorted by cheapest return flights first.

Deals found on 15/2

Showing 1-10 of 45 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 £432). Flying from San Francisco Bay Area to Northern Ireland in June is currently the most expensive (average of £894). 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 Delta can get you from San Francisco Bay Area to Northern Ireland in just under 15h 05m. Your travel time can differ by up to 5h 15m. 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 £432). Flying from San Francisco Bay Area to Northern Ireland in June is currently the most expensive (average of £894). 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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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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