Cheap Flights from London Heathrow Airport to Idaho from $1,513 Return

Flight deals from London Heathrow Airport to Idaho

Looking for a cheap last-minute deal or the best return flight from London Heathrow Airport to Idaho? If you want to travel next month, return fares start from $1,784. Find the lowest prices on one-way and return tickets right here.

Boise.$1,513 per passenger.Departing Tue, 1 Sep, returning Wed, 16 Sep.Return flight with Lufthansa.Outbound indirect flight with Lufthansa, departs from London Heathrow on Tue, 1 Sep, arriving in Boise.Inbound indirect flight with Lufthansa, departs from Boise on Wed, 16 Sep, arriving in London Heathrow.Price includes taxes and charges.From $1,513, select.

Idaho Falls.$1,754 per passenger.Departing Mon, 14 Sep, returning Mon, 21 Sep.Return flight with Alaska Airlines.Outbound indirect flight with Alaska Airlines, departs from London Heathrow on Mon, 14 Sep, arriving in Idaho Falls.Inbound indirect flight with Alaska Airlines, departs from Idaho Falls on Mon, 21 Sep, arriving in London Heathrow.Price includes taxes and charges.From $1,754, select.

Hailey.$1,850 per passenger.Departing Wed, 23 Sep, returning Wed, 7 Oct.Return flight with Delta.Outbound indirect flight with Delta, departs from London Heathrow on Wed, 23 Sep, arriving in Hailey.Inbound indirect flight with Delta, departs from Hailey on Wed, 7 Oct, arriving in London Heathrow.Price includes taxes and charges.From $1,850, select.

Lewiston.$2,076 per passenger.Departing Tue, 30 Jun, returning Mon, 6 Jul.Return flight with KLM and Air France.Outbound indirect flight with KLM, departs from London Heathrow on Tue, 30 Jun, arriving in Lewiston-Nez Perce County.Inbound indirect flight with Air France, departs from Lewiston-Nez Perce County on Mon, 6 Jul, arriving in London Heathrow.Price includes taxes and charges.From $2,076, select.

Twin Falls.$2,486 per passenger.Departing Sat, 13 Feb, returning Sat, 20 Feb.Return flight with Delta.Outbound indirect flight with Delta, departs from London Heathrow on Sat, 13 Feb, arriving in Twin Falls.Inbound indirect flight with Delta, departs from Twin Falls on Sat, 20 Feb, arriving in London Heathrow.Price includes taxes and charges.From $2,486, select.

Pocatello.$2,501 per passenger.Departing Mon, 5 Apr, returning Mon, 19 Apr.Return flight with Delta.Outbound indirect flight with Delta, departs from London Heathrow on Mon, 5 Apr, arriving in Pocatello.Inbound indirect flight with Delta, departs from Pocatello on Mon, 19 Apr, arriving in London Heathrow.Price includes taxes and charges.From $2,501, select.

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Flying from London Heathrow Airport to Idaho

Arm yourself with these facts on the fly.

Cheapest flight found	$1,513
Cheapest month to fly	September

How to find cheap flights from London Heathrow Airport to Idaho

We've compared the best online travel agents and flight providers on the internet to find the cheapest plane tickets from London Heathrow Airport to Idaho. Other savvy travellers recently found return flights from $1,513 and one-way tickets from $1,091. Ready to join them? Here are a few tips to help you do it the smart way.

Fly in September

The cheapest time to fly from London Heathrow Airport to Idaho is currently September.

Flex your dates for the best rates

If you’re flexible on your departure dates, you can use Skyscanner's whole month tool to find the cheapest day of the year to fly from London Heathrow Airport to anywhere you choose in Idaho.

Watch as fares rise and fall

With Price Alerts, we'll let you know when flight prices from London Heathrow Airport to your chosen airport in Idaho go up or down so you can book when the time is just right.

Relax – these are fee-free flight tickets

With us, there are no added fees – the Idaho Airport to Idaho flight price you see when you search with us is what you pay to the provider.

Frequently asked questions

Are there any direct flights from London Heathrow Airport to Idaho?

There are currently no direct flights from London Heathrow Airport to Idaho, but we've found some other routes to United States – check them out now.

What is the average price of a flight from London Heathrow Airport to Idaho?

We looked at all of the upcoming return flights from London Heathrow Airport to Idaho we could find over the next 12 months. It looks like $1,513 is the best price. This is good, compared to the average Idaho ticket price of $2,030.

What is the cheapest month to fly from London Heathrow Airport to Idaho?

The cheapest month to fly from London Heathrow Airport to Boise Airport is currently September.
The cheapest month to fly from London Heathrow Airport to Idaho Falls Airport is currently September.
The cheapest month to fly from London Heathrow Airport to Hailey Airport is currently September.
And the cheapest month to fly from London Heathrow Airport to Twin Falls Airport is usually February.

Which upcoming date is cheapest to fly from London Heathrow Airport to Idaho on?

After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from London Heathrow Airport to Idaho on Tuesday, 1 September 2026.