$493 Find Cheap Flights from Northern Ireland to California - Compare and Save

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.

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.

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.

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.

There are 29 airports in California. The busiest airport is Los Angeles Airport (LAX), with 41% of all flights arriving there.

An average nonstop flight from Northern Ireland to California takes 21h 56m, covering a distance of 5048 miles. The shortest route is Belfast Intl Airport (BFS) to Los Angeles (LAX) with an average flight time of 14h 40m.

Based on KAYAK flight searches, the most popular destination is San Francisco (50% of total searches to California). The next most popular destinations are Los Angeles (30%) and Ontario (20%).