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Cheap flights from London Heathrow Airport to Idaho from £432

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/2. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — BOI
22 Jan — 29 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Heathrow to Idaho

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to Idaho
Explore the most affordable flight options available from Heathrow to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 23 December 2025.

Wed 24/1206:20LHR - SUN
2 stops23h 00mDelta
Fri 9/107:25SUN - LHR
2 stops19h 50mDelta
Deal found 21/12£1,212

Find flight deals from Heathrow to Idaho

Keep the following information in mind while searching for Heathrow to Idaho flight deals. Data was last updated 23 December 2025.

Round-trip from

£381

Popular in

December

Cheapest in

September

Average price

£1,109
3/2-10/2
  • 3/2-10/2
  • 4 total stops
  • 38h 15m total
  • London to Idaho
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (£54 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (£26 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Heathrow to Idaho that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 23 December 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Idaho that are best for you.

Fly from

Heathrow

Fly to

Idaho

Route

Depart

Return

Price

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Wed 4/2

06:35-23:01

2 stops23h 26m

Boise Air Term. Gowen Fld

Wed 11/2

06:23-11:50

2 stops22h 27m

£432

LondonSpokane

LHR - GEG

LHRGEG

London Heathrow

Tue 3/2

09:25-21:25

1 stop20h 00m

Spokane

Tue 10/2

07:30-12:20

1 stop20h 50m

£507

LondonSpokane

LHR - GEG

LHRGEG

London Heathrow

Wed 11/2

08:20-10:26

2 stops34h 06m

Spokane

Sun 1/3

13:55-06:15

2 stops32h 20m

£535

LondonSpokane

LHR - GEG

LHRGEG

London Heathrow

Mon 9/2

10:35-18:49

1 stop16h 14m

Spokane

Sun 1/3

13:55-06:15

2 stops32h 20m

£535

LondonSpokane

LHR - GEG

LHRGEG

London Heathrow

Tue 10/3

06:35-21:18

2 stops21h 43m

Spokane

Tue 17/3

12:42-13:30

2 stops17h 48m

£539

LondonSpokane

LHR - GEG

LHRGEG

London Heathrow

Wed 4/2

06:35-21:22

2 stops22h 47m

Spokane

Wed 11/2

05:00-08:25

2 stops19h 25m

£540

LondonSpokane

LHR - GEG

LHRGEG

London Heathrow

Thu 12/2

07:40-21:07

2 stops21h 27m

Spokane

Fri 27/2

12:38-13:30

2 stops16h 52m

£540

LondonSpokane

LHR - GEG

LHRGEG

London Heathrow

Tue 10/3

06:35-21:18

2 stops21h 43m

Spokane

Tue 17/3

13:37-09:40

1 stop13h 03m

£540

LondonSpokane

LHR - GEG

LHRGEG

London Heathrow

Wed 11/2

08:30-21:50

2 stops21h 20m

Spokane

Sat 28/2

07:00-05:55

1 stop14h 55m

£541

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Fri 27/2

11:10-23:48

2 stops19h 38m

Boise Air Term. Gowen Fld

Mon 9/3

06:15-09:40

1 stop21h 25m

£585

Flights are sorted by cheapest return flights first.

Deals found on 20/12

Showing 1-10 of 41 results
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Best time to book a flight from Heathrow to Idaho

Have a flexible travel schedule? Discover the best time to fly to Idaho from Heathrow with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from London Heathrow Airport to Idaho

What is the cheapest month to book a flight from London Heathrow Airport to Idaho?

Currently, March is the cheapest month in which you can book a flight from London Heathrow Airport to Idaho (average of £510). Flying from London Heathrow Airport to Idaho in February is currently the most expensive (average of £711). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from LHR to ID?

Find hourly flight availability from Heathrow to Idaho. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 23 December 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 12% on flights from London Heathrow Airport to Idaho by exploring options for tickets in the afternoon.

How much does it cost for a return flight from London Heathrow Airport to Idaho?

Reviews of airlines servicing Idaho

Get insights into the airlines that provide service to Idaho. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Idaho. Reviews last updated 23 December 2025.
See what other customers who have flown with Virgin Atlantic, United Airlines, andLufthansa from London Heathrow Airport to Idaho have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Virgin Atlantic
7.5
Good
677 reviews
Check prices

Overall

7.5

Food

6.9

Entertainment

7.6

Comfort

7.3

Crew

8.1

Boarding

7.7

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
Virgin Atlantic
7.5
Good
677 reviews
Virgin Atlantic
7.5
Good
677 reviews
Check prices

Overall

7.5

Food

6.9

Entertainment

7.6

Comfort

7.3

Crew

8.1

Boarding

7.7

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
United Airlines
7.4
Good
9,109 reviews
Virgin Atlantic
7.5
Good
677 reviews
Check prices

Overall

7.5

Food

6.9

Entertainment

7.6

Comfort

7.3

Crew

8.1

Boarding

7.7

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
Lufthansa
6.8
Okay
7,649 reviews
Virgin Atlantic
7.5
Good
677 reviews
Check prices

Overall

7.5

Food

6.9

Entertainment

7.6

Comfort

7.3

Crew

8.1

Boarding

7.7

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!

Related info for your journey

Find useful and relevant information for your journey from Heathrow to Idaho. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from London Heathrow Airport to Idaho?

    For as low as £585, American Airlines can have you in Idaho from London Heathrow Airport in 19h 38m. Airlines will cover a distance of 4829 mi. Both multi-stop and direct flights can be found to your destination and back.

  • What are the most popular routes from London Heathrow Airport to Idaho?

    While some choose either London Heathrow - Spokane or London Heathrow - Jackson Hole, London Heathrow - Boise Air Term. Gowen Fld is the most popular route from London Heathrow Airport to Idaho.

  • Can I find deals for flights from Heathrow to Idaho that include hotel bookings?

    Yes. In addition to deals on Heathrow to Idaho flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Heathrow to Idaho?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Idaho.

  • Can I find deals for business class flights from Heathrow to Idaho?

    Yes. Cheapflights offers flight deals from Heathrow to Idaho by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from London Heathrow Airport to Idaho?

    Currently, March is the cheapest month in which you can book a flight from London Heathrow Airport to Idaho (average of £510). Flying from London Heathrow Airport to Idaho in February is currently the most expensive (average of £711). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Heathrow to Idaho

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Heathrow to Idaho

Discover the top 3 airlines that operate flights from Heathrow to Idaho. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 23 December 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest£535Average£654FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
United AirlinesCheapest£538Average£845FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Virgin AtlanticCheapest£599Average£834FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Heathrow to Idaho?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Idaho from Heathrow today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Heathrow to Idaho?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Heathrow to Idaho.

Can Cheapflights find flights from Heathrow to Idaho with no change fees?

Certainly. Search results for flights to Idaho from Heathrow shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Heathrow to Idaho become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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