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Cheap flights from Northern Ireland to San Francisco from £364

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 14/11. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — SFO
3 Dec — 10 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Northern Ireland to San Francisco

Enter your travel dates to find the best prices.

Cheapest flights from Northern Ireland to San Francisco
Explore the most affordable flight options available from Northern Ireland to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3 November 2025.

Fri 14/1106:45BHD - SFO
1 stop16h 15mMultiple Airlines
Fri 14/1117:20SFO - BHD
2 stops17h 05mMultiple Airlines
Deal found 2/11£1,023
Fri 14/1106:45BHD - SFO
2 stops21h 29mBritish Airways
Fri 14/1123:59SFO - BHD
2 stops27h 11mBritish Airways
Deal found 2/11£2,938
Tue 2/1215:05BHD - SFO
1 stop35h 40mFinnair
Tue 9/1220:40SFO - BHD
1 stop14h 00mFinnair
Deal found 2/11£3,060
Tue 2/1211:25BHD - SFO
1 stop15h 20mMultiple Airlines
Tue 9/1209:22SFO - BHD
2 stops18h 08mMultiple Airlines
Deal found 2/11£3,245
Tue 2/1206:35BHD - SFO
1 stop20h 10mBritish Airways
Tue 9/1216:21SFO - BHD
2 stops16h 24mBritish Airways
Deal found 2/11£3,288

Cheap 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 3 November 2025.

Round-trip from

£601

One-way from

£364

Popular in

July

Cheapest in

January

Average price

£543
American Airlines
  • American Airlines
  • 5/3-9/3
  • 2 total stops
  • 33h 30m total
  • Northern Ireland to San Francisco
Search Deals
14/11
  • 14/11
  • 3 total stops
  • 47h 57m total
  • Northern Ireland to San Francisco
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£59 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£21 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 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 3 November 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 5/3

09:05-15:00

1 stop13h 55m

San Francisco

Mon 9/3

10:24-10:40

2 stops17h 16m

£601

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Thu 26/3

17:20-12:50

1 stop26h 30m

San Francisco

Mon 30/3

13:45-21:20

1 stop23h 35m

£824

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Fri 14/11

06:30-22:27

3 stops47h 57m

£364

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Fri 14/11

07:20-22:27

3 stops47h 07m

£401

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Fri 14/11

15:25-15:35

2 stops32h 10m

£547

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Fri 14/11

06:45-15:00

1 stop16h 15m

£595

Flights are sorted by cheapest return flights first.

Deals found on 2/11

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 3 November 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 American Airlines fly from Northern Ireland to San Francisco in about 13h 55m. The time it takes to get you to your destination can typically vary by up to . Airlines will cover a distance of 5038 mi.

  • 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
South San Francisco
San Bruno
Bodega Bay
Pacific Grove

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Alternative routes for Northern Ireland to San Francisco

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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 3 November 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£405Average£574FlexibilityNo cancel feeOn-time70%
Search British Airways flights
American AirlinesCheapest£482Average£534FlexibilityNo 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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