Cheap Flights from London Heathrow Airport to Idaho from $1,119 Return

Flight deals from London Heathrow Airport to Idaho

Looking for cheap tickets from London Heathrow Airport to Idaho, or a last-minute trip? Find the lowest prices on one-way and return tickets right here.

Boise.$953 per passenger.Departing Wed, 11 Feb.One-way flight with Lufthansa.Outbound indirect flight with Lufthansa, departs from London Heathrow on Wed, 11 Feb, arriving in Boise.Price includes taxes and charges.From $953, select.

Idaho Falls.$1,084 per passenger.Departing Thu, 14 May.One-way flight with Delta.Outbound indirect flight with Delta, departs from London Heathrow on Thu, 14 May, arriving in Idaho Falls.Price includes taxes and charges.From $1,084, select.

Twin Falls.$1,220 per passenger.Departing Tue, 10 Feb.One-way flight with KLM.Outbound indirect flight with KLM, departs from London Heathrow on Tue, 10 Feb, arriving in Twin Falls.Price includes taxes and charges.From $1,220, select.

Hailey.$1,356 per passenger.Departing Sat, 10 Jan.One-way flight with Delta.Outbound indirect flight with Delta, departs from London Heathrow on Sat, 10 Jan, arriving in Hailey.Price includes taxes and charges.From $1,356, select.

See more deals

Flying from London Heathrow Airport to Idaho

Arm yourself with these facts on the fly.

Cheapest flight found	$953
Cheapest month to fly	February

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 $1,119 and one-way tickets from $953. Ready to join them? Here are a few tips to help you do it the smart way.

Fly in March

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

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 $1,119 is the best price. This is good, compared to the average Idaho ticket price of $1,792.

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

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

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 Wednesday, 11 March 2026.