$509 Find Cheap Flights from Northern Ireland to California

1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to California

Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 20% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Useful Info

Good to know

Low seasonFebruary
High seasonJune
Cheapest flight$509
Best time to beat the crowds but there is an average 8% increase in price.
Most popular time to fly and prices are also 6% lower on average.
Flight from Belfast Intl Airport to San Francisco

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.

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

    The cheapest time of day to fly to California is generally in the morning, when round-trip flights cost $646 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 $646.

  • 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 $562 (return) on average. On the other hand, the most expensive months are December and October, when the average cost of round-trip tickets is $961 and $885 respectively.

  • How long is the flight to California?

    An average nonstop flight from Northern Ireland to California takes 18h 46m, covering a distance of 5040 miles. The shortest route is Belfast City Airport (BHD) to Los Angeles (LAX) with an average flight time of 14h 25m.

  • What are the most popular destinations in California?

    Based on KAYAK flight searches, the most popular destination is Los Angeles (30% of total searches to California). The next most popular destinations are San Francisco (27%) and Santa Ana (18%). Searches for flights to Las Vegas (15%) and to Ontario (9%) are also popular.

Book cheap flights from Northern Ireland to California

Recent round-trip flight deals

10/10Fri
1 stopBritish Airways
16h 05mBHD-LAX
10/13Mon
1 stopBritish Airways
13h 15mLAX-BHD
$586
10/1Wed
1 stopBritish Airways
25h 35mBHD-SFO
10/6Mon
1 stopBritish Airways
15h 05mSFO-BHD
$603
10/1Wed
1 stopDelta
13h 15mBHD-SFO
10/6Mon
2 stopsDelta
25h 20mSFO-BHD
$649
9/30Tue
1 stopKLM
13h 15mBHD-SFO
10/6Mon
1 stopKLM
19h 10mSFO-BHD
$650
9/30Tue
1 stopKLM
13h 15mBHD-SFO
10/7Tue
2 stopsKLM
17h 55mSFO-BHD
$654
10/1Wed
2 stopsDelta
19h 20mBHD-SFO
10/6Mon
2 stopsDelta
22h 55mSFO-BHD
$655
9/28Sun
2 stopsFinnair
33h 13mBHD-SFO
10/8Wed
2 stopsFinnair
40h 18mSFO-BHD
$692
9/28Sun
1 stopFinnair
25h 45mBHD-SFO
10/6Mon
1 stopFinnair
34h 05mSFO-BHD
$720
10/10Fri
1 stop
16h 05mBFS-LAX
10/13Mon
3 stops
31h 30mLAX-BFS
$720
10/2Thu
1 stop
13h 15mBHD-SFO
10/5Sun
1 stop
19h 10mSFO-BHD
$732

Search by stops

Search by airline

Search by price

Recent one-way flight deals

6/22Sun
2 stops
45h 30mBFS-SFO
$509
6/22Sun
2 stops
45h 30mBFS-SFO
$526
6/22Sun
3 stops
45h 24mBFS-SFO
$537
7/8Tue
2 stopsBritish Airways
29h 59mBHD-LAX
$727
9/1Mon
2 stopsBritish Airways
17h 17mBHD-SFO
$836
6/22Sun
1 stopDelta
32h 20mBHD-SFO
$1,579
6/22Sun
1 stopDelta
32h 20mBHD-SFO
$1,581
7/21Mon
1 stopKLM
26h 20mBHD-SFO
$1,880
7/21Mon
1 stopKLM
26h 20mBHD-SFO
$1,887
7/14Mon
1 stopVirgin Atlantic
26h 20mBHD-SFO
$3,632

Search by stops

Search by airline

Search by price

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
Prem Econ Class flights to California
Economy Class flights to California

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.