$340 Find Cheap Flights from Idaho Falls to London

In the last 5 days, the lowest price for a flight from Idaho Falls to London Heathrow Airport was $340 for a one-way ticket and $876 for a round-trip.

Yes

When flying out of Idaho Falls you will be using Idaho Falls Fanning Field. You will be landing at London, also known as London Heathrow.

We unfortunately don’t have that data for this specific route.

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 Idaho Falls to London.

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London from Idaho Falls 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 to London with an airline and back to Idaho Falls with another airline. Booking your flights between Idaho Falls and LHR can sometimes prove cheaper using this method.

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 to London from Idaho Falls up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.