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Find cheap flights from San Francisco to Northern Ireland from £270

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Francisco to Northern Ireland departing on 7/9. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Tue 18/6
Tue 25/6

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Best Northern Ireland Flight Deals

Cheapest return prices found by our users on KAYAK in the last 72 hours

Belfast
Belfast1 stop£516

Good to know - Cheap tickets from San Francisco to Northern Ireland

Low season

February

High season

May

Cheapest flight

£270
Best time to beat the crowds (26% less expensive on average)
Most popular time to fly and prices are also 5% lower on average.
Flight from San Francisco to Belfast City Airport

FAQs - booking Northern Ireland flights

  • How does KAYAK find such low prices on flights from San Francisco to Northern Ireland?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from San Francisco to Northern Ireland.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from San Francisco to Northern Ireland?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Northern Ireland from San Francisco is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from San Francisco to Northern Ireland?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Northern Ireland with an airline and back to San Francisco with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from San Francisco to Northern Ireland?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Northern Ireland from San Francisco up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding a cheap flight from San Francisco to Northern Ireland

  • Morning departure is around 44% more expensive than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

Top airline flying from San Francisco to Northern Ireland

 
Need help choosing which airline to fly with from San Francisco to Northern Ireland? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 10900 reviews
6.7Food
7.7Boarding
7.1Entertainment
7.2Comfort
8.1Crew
Airline reviews

Hated every minute of it. This flight should have only taken 1.5hrs but was delayed over 10hours. Now I am being told I cannot be compensated or refunded my ticket price or extra leg room, which I purchased but did not receive, because the airline is throwing the blame on the 3rd party I purchased tickets through and 3rd party putting the blame on airline. No one wants to help. They received their money and that's all they care about. Im going on 3 days of still trying to get to my final destination, had to cancel car rental, car insurance and hotel. Currently staying in airport until hotels open up. Thank you Lufthansa, Kayak, Underpricer and United for making this trip the worst ever.

2.0 MediocreAnonymous, Apr 2024SFO - FRA
Read more about United Airlines reviews

Hated every minute of it. This flight should have only taken 1.5hrs but was delayed over 10hours. Now I am being told I cannot be compensated or refunded my ticket price or extra leg room, which I purchased but did not receive, because the airline is throwing the blame on the 3rd party I purchased tickets through and 3rd party putting the blame on airline. No one wants to help. They received their money and that's all they care about. Im going on 3 days of still trying to get to my final destination, had to cancel car rental, car insurance and hotel. Currently staying in airport until hotels open up. Thank you Lufthansa, Kayak, Underpricer and United for making this trip the worst ever.

Crew was great and did their best to make us comfortable and captain came out at the beginning to announce why the flight was delayed, weather situation up ahead, and kept us updated throughout the flight.

United WiFi is consistently unusable (it can take 10 mins to load a single web page). If you need Wifi to do work, be prepared to lose half a day of productivity.

Awful. I got stuck next to a person carrying a dog and behind someone with a dog. People need to board these dogs downstairs. The cabin is crowded enough with your pets

Packed in like sardines, very uncomfortable. Sitting the aisle my shoulder was rammed into numerous times by rushing flight attendants. Also flight was very cold.

Beverage and food services are excellent. We enjoy paying the extra for economy plus for the 3 inches more leg room to be exact.

Flight was delayed by 3 hours. The pilot made up 1 hour during the flight, but that made the wait at the airport 5 hours once you factor getting there 2 hours early.

Airline did not explain reasons why flight was delayed two hours. Explanations were badly needed and rarely provided. Problem seemed to clearly be the airline’s fault and not the fault of the weather or airport.

Very uncomfortable seats and seat backs, and I am only 5’9”. Delayed due to crew issues, spent a long time with no ventilation. Teeny overhead bins. Wifi worked well. Arrived safely.

I was delighted that we were able to get on the 4:40 pm flight rather than our original booking at 6:55 pm!! Other than that, the flight was comfortable and landed early😊

Book cheap flights from San Francisco to Northern Ireland

Cheapest flights to Northern Ireland from San Francisco found in 2024

Recent return flight deals

16/10Wed
1 stopLufthansa
16h 10mSFO-BHD
20/10Sun
1 stopLufthansa
34h 25mBHD-SFO
£516
16/10Wed
1 stopLufthansa
16h 10mSFO-BHD
20/10Sun
1 stopLufthansa
34h 25mBHD-SFO
£517
16/10Wed
2 stopsDelta
20h 02mSFO-BHD
20/10Sun
1 stopDelta
26h 25mBHD-SFO
£522
16/10Wed
2 stopsDelta
22h 20mSFO-BHD
20/10Sun
1 stopDelta
26h 25mBHD-SFO
£523
17/8Sat
2 stops
42h 00mSFO-BFS
1/9Sun
1 stop
19h 10mBFS-SFO
£731
17/8Sat
2 stopsAmerican Airlines
17h 52mSFO-BHD
2/9Mon
2 stopsAmerican Airlines
18h 19mBHD-SFO
£790
16/8Fri
2 stopsAmerican Airlines
21h 03mSFO-BHD
2/9Mon
2 stopsAmerican Airlines
20h 49mBHD-SFO
£790
26/6Wed
2 stops
24h 35mSFO-BFS
27/6Thu
3 stops
34h 02mBFS-SFO
£907
13/7Sat
1 stopBritish Airways
16h 50mSFO-BHD
21/7Sun
1 stopBritish Airways
18h 35mBHD-SFO
£1,333
26/6Wed
1 stopBritish Airways
13h 55mSFO-BHD
27/6Thu
2 stopsBritish Airways
36h 30mBHD-SFO
£1,730

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Recent one-way flight deals

7/9Sat
2 stops
45h 04mSFO-BHD
£270
7/9Sat
3 stops
24h 20mSFO-BHD
£384
17/7Wed
1 stopLufthansa
16h 10mSFO-BHD
£398
7/9Sat
1 stopVirgin Atlantic
19h 00mSFO-BHD
£424
17/7Wed
3 stops
29h 45mSFO-BHD
£465
17/7Wed
2 stops
16h 45mSFO-BHD
£483
17/7Wed
2 stops
18h 20mSFO-BFS
£490

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Last minute flights from San Francisco to Northern Ireland

Last minute flight, train and bus deals

23/5Thu
multi-stopDelta
18h 55mSFO-BHD
5/6Wed
multi-stopDelta
26h 25mBHD-SFO
£798
23/5Thu
multi-stopDelta
26h 40mSFO-BHD
4/6Tue
multi-stopDelta
26h 25mBHD-SFO
£802
24/5Fri
multi-stopDelta
19h 00mSFO-BHD
3/6Mon
multi-stopDelta
34h 22mBHD-SFO
£806
23/5Thu
multi-stopDelta
26h 40mSFO-BHD
4/6Tue
multi-stopDelta
34h 22mBHD-SFO
£810
24/5Fri
multi-stopDelta
19h 25mSFO-BHD
3/6Mon
multi-stopDelta
30h 38mBHD-SFO
£853

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San Francisco - Northern Ireland Flights

Departure:

San Francisco (SFO)United States

Return flight deals:

Northern Ireland - San Francisco

Cabin classes: