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Cheap flights from San Francisco Bay Area to Northern Ireland from £214

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 10/11. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — BFS
17 Oct — 24 Oct1
1 adult
1 adult, Economy

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 17 September 2025.

Round-trip from

£463

One-way from

£214

Popular in

November

Cheapest in

October

Average price

£622
Delta
  • Delta
  • 28/9-7/10
  • 2 total stops
  • 36h 45m total
  • San Francisco Bay Area to Northern Ireland
Search Deals
10/11
  • 10/11
  • 3 total stops
  • 55h 15m total
  • San Francisco Bay Area to Northern Ireland
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£68 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (£25 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2025
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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 17 September 2025.

Wed 24/913:45SFO - BHD
1 stop23h 30mDelta
Mon 6/1017:25BHD - SFO
1 stop26h 20mDelta
Deal found 16/9£463
Mon 20/1014:10SFO - BHD
2 stops17h 30mAmerican Airlines
Fri 31/1006:45BHD - SFO
2 stops19h 23mAmerican Airlines
Deal found 16/9£473
Sun 26/1005:55SJC - BHD
2 stops32h 05mDelta
Fri 7/1106:30BHD - SJC
2 stops23h 38mDelta
Deal found 16/9£474
Wed 24/913:45SFO - BHD
1 stop19h 10mDelta
Fri 3/1006:30BHD - SFO
2 stops21h 35mDelta
Deal found 16/9£499
Thu 25/913:45SFO - BHD
1 stop23h 30mDelta
Mon 6/1017:25BHD - SFO
1 stop26h 20mDelta
Deal found 16/9£500
Fri 24/1013:45SFO - BHD
2 stops19h 10mMultiple Airlines
Fri 7/1106:30BHD - SFO
1 stop13h 20mMultiple Airlines
Deal found 16/9£504
Wed 29/1005:55OAK - BHD
2 stops27h 55mDelta
Sun 2/1117:20BHD - OAK
2 stops30h 51mDelta
Deal found 16/9£511
Fri 24/1011:35SJC - BHD
2 stops21h 20mDelta
Fri 7/1106:30BHD - SJC
2 stops21h 56mDelta
Deal found 16/9£511
Wed 3/1217:30SFO - BHD
1 stop15h 05mBritish Airways
Sun 7/1215:10BHD - SFO
1 stop35h 35mBritish Airways
Deal found 14/9£511
Wed 3/1213:55SFO - BHD
1 stop23h 05mDelta
Sun 7/1206:30BHD - SFO
1 stop13h 20mDelta
Deal found 15/9£513
Sat 25/1008:00SJC - BHD
2 stops20h 10mAmerican Airlines
Sat 8/1106:35BHD - SJC
2 stops22h 13mAmerican Airlines
Deal found 16/9£516
Wed 3/1210:30SFO - BHD
2 stops26h 30mVirgin Atlantic
Sun 7/1206:30BHD - SFO
1 stop13h 20mVirgin Atlantic
Deal found 14/9£516

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 September 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

Mon 29/9

13:45-16:55

1 stop19h 10m

Belfast City

Mon 6/10

17:25-11:45

1 stop26h 20m

£463

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Mon 20/10

13:45-16:55

1 stop19h 10m

Belfast City

Fri 31/10

06:30-12:50

1 stop13h 20m

£463

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Tue 30/9

13:45-21:15

1 stop23h 30m

Belfast City

Tue 7/10

17:25-11:45

1 stop26h 20m

£463

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Mon 29/9

13:45-21:15

1 stop23h 30m

Belfast City

Tue 7/10

17:25-11:45

1 stop26h 20m

£463

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Tue 30/9

13:45-21:15

2 stops23h 30m

Belfast City

Mon 6/10

17:25-11:45

1 stop26h 20m

£467

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Sun 28/9

10:55-16:55

2 stops22h 00m

Belfast City

Tue 7/10

06:30-11:45

1 stop13h 15m

£467

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Sun 28/9

10:30-16:55

2 stops22h 25m

Belfast City

Mon 6/10

17:25-11:45

1 stop26h 20m

£467

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Mon 20/10

14:10-15:40

2 stops17h 30m

Belfast City

Fri 31/10

06:45-19:08

2 stops19h 23m

£473

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Fri 5/12

13:55-16:50

1 stop18h 55m

Belfast City

Tue 9/12

17:20-11:50

1 stop26h 30m

£500

OaklandBelfast

OAK - BHD

OAKBHD

Oakland

Wed 29/10

05:55-16:50

2 stops27h 55m

Belfast City

Sun 2/11

17:20-16:11

2 stops30h 51m

£511

Flights are sorted by cheapest return flights first.

Deals found on 14/9

Showing 1-10 of 42 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?

    Delta, KLM, and American Airlines can get you from San Francisco Bay Area to Northern Ireland in just under 19h 10m. Your travel time can differ by up to 1h. 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.

See more FAQs

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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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