$397 Find Cheap Flights from Northern Ireland to California

1 adult
1 adult, Economy, 0 bags

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Useful Info

Good to know

Low seasonJune
Cheapest flight$397
Best time to beat the crowds with an average 6% drop in price.
Most popular time to fly with an average 24% increase in price.
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 travelers 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 round-trip 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.

  • How many airports are there in California?

    There are 29 airports in California. The busiest airport is Los Angeles Airport (LAX), with 38% of all flights arriving there.

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

    The cheapest month for flights from Northern Ireland to California is March, when tickets cost $620 (return) on average. On the other hand, the most expensive months are July and December, when the average cost of round-trip tickets is $909 and $765 respectively.

  • How long is the flight to California?

    An average nonstop flight from Northern Ireland to California takes 20h 31m, covering a distance of 5040 miles. The shortest route is Belfast Intl Airport (BFS) to San Francisco (SFO) with an average flight time of 15h 20m.

  • What are the most popular destinations in California?

    Based on KAYAK flight searches, the most popular destination is Las Vegas (72% of total searches to California). The next most popular destinations are San Francisco (16%) and Los Angeles (7%). Searches for flights to Santa Ana (2%) and to Ontario (2%) are also popular.

Reviews of the 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.
6.7
British AirwaysOverall score based on 7797 reviews
7.6Crew
6.4Food
6.4Entertainment
6.8Comfort
6.9Boarding
Airline reviews

the service on Business class should be improved to be at par with industry leaders like Cathay Pacific and Singapore AIrlines. A lot of room for improvement.

6.0 GoodAnonymous, Mar 2026
LHR - LAX
Read more British Airways reviews

the service on Business class should be improved to be at par with industry leaders like Cathay Pacific and Singapore AIrlines. A lot of room for improvement.

Late takeoff, but on time landing. Lost bags, 3 days to find them, still in transit to my location. Power outlets broken, Wi-Fi not working, so much for working on the long flight.

Good. For a long flight. The comfort of the seat could be better. Also, the food was « normal » plane food. Not indian plane food unfortunately! Everything else was smooth and great.

The seats were comfortable. So many empty seats allowed for stretching out and sleeping. The onboard entertainment was pretty good. The cabin crew were so kind and kept the passengers well- hydrated, and well fed.

We had American Airlines on our return and it was confusing if we were going with Aa or BA I had 2 different flight numbers and didn’t get our gate until it was boarding. So we were a bit nervous as the which it was

My touch screen at my seat wasn't working, the films BA advertised on the website for this flight were not available, and the plane was a little dated, food was good and the staff were good, just let down by the aircraft facilities.

Did not like the seating configuration at all with 2+3+2 in business class. Lacking total privacy and comfort

Check-in experience, for business call please provide a premium experience

Lost my luggage, ran out of food choices in business class, ground crew was completely unapologetic.

Excellent. The crew and flight were great. Checking in was easy and everyone was very helpful.

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.
First Class flights to California
Business Class flights to California
Premium Economy Class flights to California
Economy Class flights to California