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Cheap flights from Northern Ireland to San Francisco from £295

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 29/3. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — SFO
19 Jan — 26 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Northern Ireland to San Francisco

Enter your travel dates to find the best prices.

Best flights from Northern Ireland to San Francisco
Discover carefully curated flight deals from Northern Ireland to San Francisco that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 20 December 2025.

Thu 22/120:00BHD - SFO
1 stop27h 00mBritish Airways
Mon 26/113:30SFO - BHD
2 stops16h 45mBritish Airways
Deal found 18/12£509
Mon 23/311:30BHD - SFO
1 stop15h 15mAmerican Airlines
Sat 18/413:24SFO - BHD
2 stops17h 41mAmerican Airlines
Deal found 20/12£514
Tue 24/306:30BHD - SFO
1 stop13h 20mKLM
Sat 18/413:45SFO - BHD
1 stop35h 35mKLM
Deal found 20/12£520
Tue 3/216:30BFS - SFO
2 stops32h 00mMultiple Airlines
Tue 10/219:25SFO - BFS
2 stops16h 50mMultiple Airlines
Deal found 20/12£599
Wed 25/306:35BHD - SFO
1 stop16h 25mBritish Airways
Sat 18/410:41SFO - BHD
2 stops15h 29mBritish Airways
Deal found 20/12£511
Wed 25/312:25BHD - SFO
2 stops19h 27mAmerican Airlines
Sat 18/411:34SFO - BHD
2 stops19h 31mAmerican Airlines
Deal found 20/12£519
Wed 18/315:40BHD - SFO
1 stop35h 05mBritish Airways
Sun 22/321:40SFO - BHD
1 stop15h 35mBritish Airways
Deal found 19/12£515
Tue 24/308:45BHD - SFO
2 stops20h 35mAmerican Airlines
Sat 18/410:41SFO - BHD
2 stops17h 34mAmerican Airlines
Deal found 20/12£519
Mon 23/306:35BHD - SFO
1 stop16h 25mBritish Airways
Sat 18/416:35SFO - BHD
1 stop32h 30mBritish Airways
Deal found 20/12£525

Find flight deals from Northern Ireland to San Francisco

Keep the following information in mind while searching for Northern Ireland to San Francisco flight deals. Data was last updated 20 December 2025.

Round-trip from

£509

One-way from

£295

Popular in

July

Cheapest in

January

Average price

£712
British Airways
  • British Airways
  • 22/1-26/1
  • 3 total stops
  • 43h 45m total
  • Northern Ireland to San Francisco
Search Deals
29/3
  • 29/3
  • 2 total stops
  • 54h 20m total
  • Northern Ireland to San Francisco
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (£84 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease (£35 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Northern Ireland to San Francisco 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 20 December 2025.
Use the filters below to find and compare flights from Northern Ireland to San Francisco that are best for you.

Fly from

Northern Ireland

Fly to

San Francisco

Route

Depart

Return

Price

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Thu 22/1

20:00-15:00

1 stop27h 00m

San Francisco

Mon 26/1

13:30-14:15

2 stops16h 45m

£509

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Wed 25/3

06:35-16:00

1 stop16h 25m

San Francisco

Sat 18/4

10:41-10:10

2 stops15h 29m

£511

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Mon 23/3

11:30-19:45

1 stop15h 15m

San Francisco

Sat 18/4

13:24-15:05

2 stops17h 41m

£514

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Wed 18/3

15:40-19:45

1 stop35h 05m

San Francisco

Sun 22/3

21:40-20:15

1 stop15h 35m

£515

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Wed 25/3

12:25-00:52

2 stops19h 27m

San Francisco

Sat 18/4

11:34-15:05

2 stops19h 31m

£519

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Tue 24/3

08:45-22:20

2 stops20h 35m

San Francisco

Sat 18/4

10:41-12:15

2 stops17h 34m

£519

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Tue 24/3

06:30-12:50

1 stop13h 20m

San Francisco

Sat 18/4

13:45-09:20

1 stop35h 35m

£520

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Mon 23/3

06:35-16:00

1 stop16h 25m

San Francisco

Sat 18/4

16:35-09:05

1 stop32h 30m

£525

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Tue 3/2

16:30-16:30

2 stops32h 00m

San Francisco

Tue 10/2

19:25-20:15

2 stops16h 50m

£599

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Sun 29/3

19:35-17:55

2 stops54h 20m

£295

Flights are sorted by cheapest return flights first.

Deals found on 19/12

Showing 1-10 of 14 results
1
2

Best time to book a flight from Northern Ireland to San Francisco

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

What is the cheapest time of day to fly from NIR to SFO?

Find hourly flight availability from Northern Ireland to San Francisco. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 20 December 2025.

Unlike at midday, when flights are generally more expensive, you can save up to 10% on flights from Northern Ireland to San Francisco by exploring options for tickets in the morning.

Related info for your journey

Find useful and relevant information for your journey from Northern Ireland to San Francisco. 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 into for flights to San Francisco from Northern Ireland?

    For a flight from Northern Ireland to San Francisco, you will be flying into San Francisco. San Francisco (SFO) is just 11.8 mi from the center of the city.

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

    Airlines like British Airways and American Airlines fly from Northern Ireland to San Francisco in about 15h 15m. The time it takes to get you to your destination can typically vary by up to 11h 45m. Airlines will cover a distance of 5038 mi. Both multi-stop and direct flights can be found to your destination and back.

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

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

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

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Northern Ireland to San Francisco.

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

    Yes. Cheapflights offers flight deals from Northern Ireland to San Francisco by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Travelling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Santa Cruz
Newark
San Bruno
South San Francisco
Bodega Bay
Sunnyvale
Pacific Grove

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Alternative routes for Northern Ireland to San Francisco

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Northern Ireland to San Francisco

Discover the top 2 airlines that operate flights from Northern Ireland to San Francisco. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 20 December 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£398Average£582FlexibilityNo cancel feeOn-time70%
Search British Airways flights
American AirlinesCheapest£474Average£525FlexibilityNo cancel feeOn-time71%
Search American Airlines flights

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 Northern Ireland to San Francisco?

When you search for this flight from Northern Ireland to San Francisco, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Northern Ireland to San Francisco?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to San Francisco from Northern Ireland.

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

Certainly. Search results for flights to San Francisco from Northern Ireland shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Northern Ireland to San Francisco become cheaper?

Yes, Cheapflights offers price alerts on Northern Ireland to San Francisco 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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