£786 Cheap Flights from London (LHR) to Idaho Falls (IDA)

View £786 flight on Mon, 1 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 and start at £786 for one-way flights and £618 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Mon, 29 Sep - Mon, 6 Oct
LHR
London
IDA
Idaho Falls
£618 Return, found 2 days ago
£618
Return
found 2 days ago
Select American Airlines flight, departing Mon, 29 Sep from London to Idaho Falls, returning Mon, 6 Oct, priced at £618 found 2 days ago
American Airlines
Wed, 10 Dec - Mon, 15 Dec
LHR
London
IDA
Idaho Falls
£619 Return, found 6 days ago
£619
Return
found 6 days ago
Select American Airlines flight, departing Wed, 10 Dec from London to Idaho Falls, returning Mon, 15 Dec, priced at £619 found 6 days ago
American Airlines
Wed, 10 Dec - Mon, 15 Dec
LHR
London
IDA
Idaho Falls
£622 Return, found 6 days ago
£622
Return
found 6 days ago
Select American Airlines flight, departing Wed, 10 Dec from London to Idaho Falls, returning Mon, 15 Dec, priced at £622 found 6 days ago
American Airlines
Mon, 29 Sep - Mon, 6 Oct
LHR
London
IDA
Idaho Falls
£624 Return, found 2 days ago
£624
Return
found 2 days ago
Select American Airlines flight, departing Mon, 29 Sep from London to Idaho Falls, returning Mon, 6 Oct, priced at £624 found 2 days ago
Iberia
Mon, 29 Sep - Mon, 6 Oct
LHR
London
IDA
Idaho Falls
£626 Return, found 2 days ago
£626
Return
found 2 days ago
Select Iberia flight, departing Mon, 29 Sep from London to Idaho Falls, returning Mon, 6 Oct, priced at £626 found 2 days ago
American Airlines
Wed, 10 Dec - Mon, 15 Dec
LHR
London
IDA
Idaho Falls
£627 Return, found 6 days ago
£627
Return
found 6 days ago
Select American Airlines flight, departing Wed, 10 Dec from London to Idaho Falls, returning Mon, 15 Dec, priced at £627 found 6 days ago
Finnair
Mon, 29 Sep - Mon, 6 Oct
LHR
London
IDA
Idaho Falls
£630 Return, found 2 days ago
£630
Return
found 2 days ago
Select Finnair flight, departing Mon, 29 Sep from London to Idaho Falls, returning Mon, 6 Oct, priced at £630 found 2 days ago
Finnair
Wed, 10 Dec - Mon, 15 Dec
LHR
London
IDA
Idaho Falls
£631 Return, found 6 days ago
£631
Return
found 6 days ago
Select Finnair flight, departing Wed, 10 Dec from London to Idaho Falls, returning Mon, 15 Dec, priced at £631 found 6 days ago
British Airways
Thu, 6 Nov - Thu, 13 Nov
LHR
London
IDA
Idaho Falls
£634 Return, found 4 days ago
£634
Return
found 4 days ago
Select British Airways flight, departing Thu, 6 Nov from London to Idaho Falls, returning Thu, 13 Nov, priced at £634 found 4 days ago
Virgin Atlantic
Mon, 1 Sep - Wed, 10 Sep
LHR
London
IDA
Idaho Falls
£635 Return, found 4 days ago
£635
Return
found 4 days ago
Select Virgin Atlantic flight, departing Mon, 1 Sep from London to Idaho Falls, returning Wed, 10 Sep, priced at £635 found 4 days ago
Flight from London to Idaho Falls route information
Origin airport
Heathrow
Destination airport
Idaho Falls Regional
Airlines serving
Air France, American Airlines, Delta, KLM, United, Virgin Atlantic
Return price
£617
Distance
7533 km

Compare flights from London to Idaho Falls easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from London to Idaho Falls. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Idaho Falls Regional in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Heathrow to Idaho Falls Regional.  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Heathrow (LHR) to Idaho Falls Regional (IDA)

The easiest way to view the best deals on flights from London to Idaho Falls today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Heathrow to Idaho Falls Regional start at just £618 and range up to £855.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near London and Idaho Falls
  • booking your flight during September, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your London to Idaho Falls flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Heathrow to Idaho Falls Regional for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

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 £618. 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.

Explore a world of travel with Expedia

Idaho Falls Airports

Pocatello

London to Pocatello Regional
£1,048.92
London Airports

London

Gatwick to Idaho Falls
£602.88
*Available to Expedia members.