Cheap Flights from London (LHR) to Idaho Falls (IDA)

View AU$1,613 flight on Sun, 21 Dec. 2025Opens in a new window

Popular airlines from Heathrow Airport (LHR) to Idaho Falls Regional Airport (IDA)

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Cheap Flights from London (LHR) to Idaho Falls (IDA)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Flight from London to Idaho Falls route information
Origin airport
Heathrow
Destination airport
Idaho Falls Regional
Distance
7533 km

Your quick guide to flights from London to Idaho Falls

Pick up great flights from London to Idaho Falls

With Expedia, you have your pick of flights a day with 15 airlines covering flights from London to Idaho Falls. Whether you’re on a business trip, a family holiday or a luxury break, just enter your travel dates, hit search then check out your choice of flights. Select from return, one way or multi-city flights, and use the advance search tool if you want a direct or refundable flight. You can narrow your search to show you just your preferred cabin class and airline, too. It’s all easy. You can book direct flights from London to Idaho Falls that take around hours.

Find cheap flights from London to Idaho Falls

From the great flight deals with prices currently ranging from to , you can choose to see the cheapest flights first. Generally, you can book the cheapest flights from London to Idaho Falls around 4 to 6 weeks in advance. If your travel dates are flexible, try to avoid weekends and peak seasons – when you are more likely to grab the lowest prices. Even last minute, there are some impressive deals. The cheapest time to fly to Idaho Falls is normally in .

Reasons to book your flight from London to Idaho Falls with Expedia

Expedia makes it easy to find, book, and travel, with everything you need all in one place. When you enter your travel details, find fantastic deals just for you on flight tickets from London to Idaho Falls across all the main airline carriers, so you can save time, dollars, and hassle finding the perfect flight. If you think your plans could change, choose refundable flights so any changes won’t cost you more. Book your flight to Idaho Falls right now and, if you join Expedia Rewards, you earn points this time and every time you travel with Expedia.

Frequently asked questions

How much is a flight from London Heathrow to IDA?
Based on fares listed within the last 7 days on Expedia for flights departing within the next year, round-trip journeys between Heathrow Airport (LHR) and Idaho Falls Regional Airport (IDA) start from . Book now to score the best price for your exciting adventure. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from London Heathrow to Idaho Falls Regional Airport (IDA)?
Every air carrier has its own terms and conditions. If you do decide to cancel, follow the simple instructions on our Customer Service Portal.
How do I find cheap flights from Heathrow Airport to Idaho Falls Regional Airport that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Heathrow Airport to Idaho Falls Regional Airport flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Heathrow Airport (LHR) to Idaho Falls Regional Airport?
Hounslow to Idaho Falls is around 7 600 kilometres, so be prepared to spend a while in the air. Make sure you pack all the essentials, from your toothbrush to your hairbrush. Toss in a couple of snacks to munch on throughout your flight too.
Which airlines fly direct from Heathrow Airport (LHR) to Idaho Falls Regional Airport?
If you want to fly straight from Heathrow Airport (LHR) to Idaho Falls Regional Airport, you'll need to book a flight with one or more stops. Unfortunately, there are no airlines that fly directly on this route.
Are Heathrow Airport (LHR) to IDA flight tickets cheaper when they're purchased at the last minute?
Late planners can sometimes nab a bargain, with some of the cheapest fares from LHR to IDA showing up a few weeks before the departure date. If you'd rather plan ahead of time, Expedia compares and updates the best flight deals regularly — as early as a year in advance in some cases. It depends on the carrier though, as not all airlines issue prices so far in advance.

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