£319 Find Cheap Flights from Northern Ireland to California

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Good to know - Cheap tickets from Northern Ireland to California

Low season

February

High season

May

Cheapest flight

£319
Best time to beat the crowds (19% less expensive on average)
Most popular time to fly and prices are also 9% lower on average.
Flight from Belfast Intl Airport to Los Angeles

FAQs for booking flights from Northern Ireland to California

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

    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 Northern Ireland to California.

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

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

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

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

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

    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 from Northern Ireland to California up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest day to fly to California?

    Based on KAYAK data, the cheapest day to fly to California is Saturday when return tickets can be as cheap as £548. On the other hand, the most expensive day to fly is Friday, when return prices are £804 on average.

  • What is the cheapest time of day to fly to California?

    The cheapest time of day to fly to California is generally in the evening, when round-trip flights cost £710 on average. Morning departures are around 17% more expensive than evening flights, on average. The most expensive time of day to fly to California is generally in the morning, which is peak travel time and where the average cost of a ticket is £828.

  • What is the cheapest month to fly from Northern Ireland to California?

    The cheapest month for flights from Northern Ireland to California is November, when tickets cost £464 (return) on average. On the other hand, the most expensive months are August and December, when the average cost of round-trip tickets is £1,537 and £717 respectively.

  • How long is the flight to California?

    An average direct flight from Northern Ireland to California takes 22h 14m, covering a distance of 5048 miles. The shortest route is Belfast Intl Airport (BFS) to San Francisco (SFO) with an average flight time of 13h 15m.

  • What are the most popular destinations in California?

    Based on KAYAK flight searches, the most popular destination is Los Angeles (32% of total searches to California). The next most popular destinations are San Francisco (26%) and Las Vegas (21%). Searches for flights to Santa Ana (11%) and to Ontario (11%) are also popular.

Top airline flying from Northern Ireland to California

Need help choosing which airline to fly with from Northern Ireland to California? 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.
6.6
British AirwaysOverall score based on 6835 reviews
6.8Boarding
7.6Crew
6.4Entertainment
6.3Food
6.7Comfort
Airline reviews

Boarding is a mess. They never check group # so lots of people crowding in. Comfortable seats this flight. I had an empty seat next to me, very convenient. Food was really not good, but I was starved. The pizza snack thing was horrible. Crew was grand. They really make it enjoyable.

6.0 GoodLorrie, Apr 2025LHR - PDX
Read more British Airways reviews

Boarding is a mess. They never check group # so lots of people crowding in. Comfortable seats this flight. I had an empty seat next to me, very convenient. Food was really not good, but I was starved. The pizza snack thing was horrible. Crew was grand. They really make it enjoyable.

Crew very helpful and friendly. Food is so so. Main meal is not always the best. Did have a choice of a snack part way which was either a cookie, corn snack, or similar. Second kind of meal was basically like a pizza pastry that really wasn’t a favorite but probably a European snack? Screens and selections of movies, tv and such were good. No WI-Fi unless you buy so no free texting or such on the long flight but I think that might be any overseas flight.

Flight Attendant Karen Lynn was an absolute delight. She assisted in every portion of the services provided throughout the flight, aided with any and all concerns expressed by passengers, and even helped comfort an upset child who was one of five of a traveling family. This quality of service is what keeps me coming back to American. Thank you!

The worst, flight cancelled because the aircraft was not full. Heathrow ground crew totally not helpful and arrogant. Lady proposed us flight with 40min layover instead of direct and said it is our problem of course she was unable to do anything as everything was beyond her control she claimed. after calling on hotline another flight was booked. Flight was cancelled last second so we could not take direct from Zurich but we had to stay overnight in London.

Food was terrible , crew were excellent , IFE was dire . Overall comfortable seat and cabin. Nothing special .

If my tv wasn’t broken and I wasn’t in a seat that didn’t allow for sleeping

Delayed flight due to lack of crew caused me to miss my connection

Please make sure the number of seats matches the number of overhead bins and passengers don't carry on more than one bag.

Seating is tight if you don’t upgrade. Food was decent. Boarding and unboarding was efficient. Smooth flight. Could make upgrades more affordable

American Airlines seemed to run a 'dry' flight. No alcohol was offered at any point with meals. Breakfast was a bit tasteless. The 'hot pocket' whatever that is, was horrid breadish pastry with very little filling. Decaf coffee was horrid. Seats didn't seem as wide or spacious as usual, especually for a ten hour flight.

Book cheap flights from Northern Ireland to California

Recent return flight deals

23/8Sat
1 stopBritish Airways
14h 45mBHD-SFO
4/9Thu
1 stopBritish Airways
15h 25mSFO-BHD
£529
19/6Thu
1 stop
15h 50mBFS-LAX
22/6Sun
1 stop
31h 10mLAX-BFS
£544
23/8Sat
1 stopBritish Airways
14h 45mBHD-SFO
4/9Thu
2 stopsBritish Airways
16h 53mSFO-BHD
£568
20/8Wed
1 stopDelta
13h 15mBHD-SFO
5/9Fri
2 stopsDelta
20h 00mSFO-BHD
£591
20/8Wed
1 stopDelta
13h 15mBHD-SFO
5/9Fri
2 stopsDelta
20h 00mSFO-BHD
£593
27/5Tue
2 stopsIberia
20h 27mBHD-LAX
3/6Tue
2 stopsIberia
17h 50mLAX-BHD
£633
12/5Mon
1 stopAmerican Airlines
29h 55mBHD-LAS
20/5Tue
1 stopAmerican Airlines
16h 10mLAS-BHD
£667
30/7Wed
1 stopKLM
13h 15mBHD-SFO
25/8Mon
1 stopKLM
19h 10mSFO-BHD
£940
31/7Thu
1 stopKLM
13h 15mBHD-SFO
25/8Mon
1 stopKLM
23h 30mSFO-BHD
£947
1/8Fri
2 stopsAmerican Airlines
21h 51mBHD-SFO
25/8Mon
1 stopAmerican Airlines
14h 10mSFO-BHD
£1,022

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Recent one-way flight deals

9/8Sat
2 stops
24h 25mBFS-LAX
£319
9/8Sat
3 stops
37h 08mBFS-LAX
£339
9/8Sat
2 stops
23h 15mBHD-LAX
£368
9/8Sat
3 stops
35h 58mBHD-LAX
£389
9/8Sat
1 stop
15h 00mBHD-LAX
£589
9/8Sat
1 stop
36h 55mBFS-LAX
£613
9/8Sat
2 stopsKLM
17h 45mBHD-ONT
£1,518

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Last minute flights from Northern Ireland to California

Last minute flight, train and bus deals

5/5Mon
multi-stop
44h 21mBFS-LAS
11/5Sun
multi-stop
27h 10mLAS-BFS
£705
5/5Mon
multi-stop
44h 21mBFS-LAS
10/5Sat
multi-stop
37h 03mLAS-BFS
£741
5/5Mon
multi-stop
42h 39mBFS-LAS
11/5Sun
multi-stop
27h 10mLAS-BFS
£745
5/5Mon
multi-stop
42h 39mBFS-LAS
10/5Sat
multi-stop
37h 03mLAS-BFS
£784
5/5Mon
multi-stop
42h 39mBFS-LAS
11/5Sun
multi-stop
30h 45mLAS-BFS
£791
5/5Mon
multi-stop
17h 33mBFS-LAS
11/5Sun
multi-stop
13h 45mLAS-BFS
£1,579

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Everything you need to know for your flight to California

Cabin class types available on flights to Northern Ireland

Cabin classes available on flights to Northern Ireland. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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