£269 Find Cheap Flights from California 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 California to Northern Ireland.

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from California to Northern Ireland is likely to change within 7 days, so travellers 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 return ticket. You could then fly from California to Northern Ireland 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 California to Northern Ireland up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Based on KAYAK data, the cheapest day to fly to Northern Ireland is Monday when return tickets can be as cheap as £555. On the other hand, the most expensive day to fly is Monday, when return prices are £555 on average.

The cheapest time of day to fly to Northern Ireland is generally in the evening, when round-trip flights cost £736 on average. Morning departures are around 100% cheaper than evening flights, on average. The most expensive time of day to fly to Northern Ireland is generally at night, which is peak travel time and where the average cost of a ticket is £747.

The cheapest month for flights from California to Northern Ireland is October, when tickets cost £480 (return) on average. On the other hand, the most expensive months are January and December, when the average cost of round-trip tickets is £999 and £963 respectively.

An average direct flight from California to Northern Ireland takes 19h 56m, covering a distance of 5061 miles. The shortest route is Los Angeles (LAX) to Belfast Intl Airport (BFS) with an average flight time of 13h 50m.

Based on KAYAK flight searches, the most popular destination is Belfast (98% of total searches to Northern Ireland). The next most popular destination is Campbeltown (2%).