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Cheap flights from San Francisco to Northern Ireland from £467

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 15/10. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — BFS
12 10월 — 19 10월1
1 adult
1 adult, Economy

Cheap flight deals from San Francisco to Northern Ireland

Keep the following information in mind while searching for San Francisco to Northern Ireland flight deals. Data was last updated 12 9월 2025.

Round-trip from

£467

Popular in

January

Cheapest in

October

Average price

£653
Delta
  • Delta
  • 15/10-31/10
  • 2 total stops
  • 32h 30m total
  • San Francisco to Northern Ireland
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (£87 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£22 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

Find flight deals from San Francisco to Northern Ireland

Cheapest flights from San Francisco to Northern Ireland
Explore the most affordable flight options available from San Francisco to Northern Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 9월 2025.

수 15/1013:45SFO - BHD
1 stop19h 10mDelta
금 31/1006:30BHD - SFO
1 stop13h 20mDelta
Deal found 10/9£467
수 15/1010:30SFO - BHD
2 stops22h 25mDelta
수 29/1017:20BHD - SFO
1 stop26h 30mDelta
Deal found 10/9£470
화 23/913:45SFO - BHD
1 stop23h 30mKLM
수 1/1006:30BHD - SFO
2 stops17h 30mKLM
Deal found 10/9£474
목 16/1009:16SFO - BHD
2 stops17h 54mAmerican Airlines
수 22/1011:30BHD - SFO
2 stops18h 13mAmerican Airlines
Deal found 10/9£479
금 17/1015:48SFO - BHD
2 stops18h 27mAmerican Airlines
목 23/1013:15BHD - SFO
2 stops19h 02mAmerican Airlines
Deal found 10/9£498
수 3/1213:55SFO - BHD
1 stop23h 05mVirgin Atlantic
일 7/1217:20BHD - SFO
1 stop26h 30mVirgin Atlantic
Deal found 9/9£503
수 15/1013:45SFO - BHD
1 stop19h 10mDelta
토 1/1106:30BHD - SFO
1 stop13h 20mDelta
Deal found 10/9£504
목 16/1013:45SFO - BHD
2 stops19h 10mMultiple Airlines
금 31/1006:30BHD - SFO
1 stop13h 20mMultiple Airlines
Deal found 10/9£506
목 9/1012:35SFO - BFS
2 stops26h 50mMultiple Airlines
목 16/1006:35BFS - SFO
1 stop20h 55mMultiple Airlines
Deal found 11/9£514
수 3/1211:55SFO - BHD
2 stops20h 55mDelta
일 7/1206:30BHD - SFO
2 stops17h 27mDelta
Deal found 10/9£514
목 9/1012:35SFO - BHD
2 stops24h 40mMultiple Airlines
목 16/1006:30BHD - SFO
1 stop13h 15mMultiple Airlines
Deal found 11/9£515
토 18/1013:45SFO - BHD
2 stops23h 30mDelta
수 29/1017:20BHD - SFO
1 stop26h 30mDelta
Deal found 10/9£520

Cheapflights Fare Finder

 
Customise your flight search to find flights from San Francisco 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 12 9월 2025.
Use the filters below to find and compare flights from San Francisco to Northern Ireland that are best for you.

Fly from

San Francisco

Fly to

Northern Ireland

Route

Depart

Return

Price

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

수 15/10

13:45-21:15

1 stop23h 30m

Belfast City

목 30/10

06:30-12:50

1 stop13h 20m

£467

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

일 19/10

13:45-21:15

1 stop23h 30m

Belfast City

금 31/10

06:30-12:50

1 stop13h 20m

£467

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

일 19/10

13:45-21:15

1 stop23h 30m

Belfast City

수 29/10

06:30-12:50

1 stop13h 20m

£467

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

수 15/10

13:45-16:55

1 stop19h 10m

Belfast City

수 29/10

06:30-12:50

1 stop13h 20m

£467

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

수 15/10

12:35-16:55

2 stops20h 20m

Belfast City

금 31/10

06:30-12:50

1 stop13h 20m

£470

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

일 19/10

08:20-16:55

2 stops24h 35m

Belfast City

목 30/10

06:30-12:50

1 stop13h 20m

£470

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

화 23/9

13:45-21:15

2 stops23h 30m

Belfast City

수 1/10

06:30-17:47

2 stops19h 17m

£477

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

목 16/10

09:16-11:10

2 stops17h 54m

Belfast City

수 22/10

11:30-21:43

2 stops18h 13m

£479

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

목 9/10

12:35-23:25

2 stops26h 50m

Belfast Intl

목 16/10

06:35-19:30

1 stop20h 55m

£514

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

목 16/10

10:15-14:05

3 stops19h 50m

Belfast Intl

수 22/10

07:25-14:30

3 stops39h 05m

£596

Flights are sorted by cheapest return flights first.

Deals found on 10/9

Showing 1-10 of 16 results
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Best time to book a flight from San Francisco to Northern Ireland

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

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

Currently, January is the cheapest month in which you can book a flight from San Francisco to Northern Ireland (average of £67). Flying from San Francisco 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.

How much does it cost for a return flight from San Francisco to Northern Ireland?

Related info for your journey

Find useful and relevant information for your journey from San Francisco to Northern Ireland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from San Francisco to Northern Ireland?

    San Francisco (SFO), located 11.8 mi from the city center, is the airport you fly out of when you book flights from San Francisco to Northern Ireland.

  • How long is the flight from San Francisco to Northern Ireland?

    For as low as £467, Delta can have you in Northern Ireland from San Francisco in 23h 30m. The distance between San Francisco and Northern Ireland is about 5038 mi.

  • What are the most popular routes from San Francisco to Northern Ireland?

    When deciding which route to take from San Francisco to Northern Ireland consider San Francisco - Belfast Intl, San Francisco - Belfast City or San Francisco - Campbeltown Machrihanish as they are the most popular.

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

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

  • How can I find direct flights from San Francisco 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 to Northern Ireland.

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

    Yes. Cheapflights offers flight deals from San Francisco 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 to Northern Ireland?

    Currently, January is the cheapest month in which you can book a flight from San Francisco to Northern Ireland (average of £67). Flying from San Francisco 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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How does Cheapflights help users find flights from San Francisco to Northern Ireland?

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

Need flexible booking options for your flight to Northern Ireland from San Francisco? 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 to Northern Ireland become cheaper?

Of course! You can now track prices for flights from San Francisco to Northern Ireland and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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