Cheap flights from London Heathrow Airport to Idaho from £349
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 18/9. Fares are subject to change and may not be available on all flights or dates of travel.
Cheap flight deals from Heathrow to Idaho
Keep the following information in mind while searching for Heathrow to Idaho flight deals. Data was last updated 4 July 2025.
Round-trip from | £517 |
---|---|
One-way from | £349 |
Popular in | August |
Cheapest in | November |
Average price | £862 |
Find flight deals from Heathrow to Idaho
Cheapest flights from Heathrow to IdahoExplore 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 4 July 2025.
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 4 July 2025.
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 4 July 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Idaho that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
LondonSpokane
LHR - GEG
LHRGEG
London Heathrow
Wed 24/9
13:45-23:15
2 stops41h 30m
Spokane
Sun 28/9
12:35-07:25
1 stop34h 50m
LondonSpokane
LHR - GEG
LHRGEG
London Heathrow
Wed 24/9
08:25-19:17
2 stops18h 52m
Spokane
Sun 28/9
13:30-09:10
1 stop35h 40m
LondonSpokane
LHR - GEG
LHRGEG
London Heathrow
Wed 24/9
14:50-21:03
1 stop14h 13m
Spokane
Sun 28/9
12:35-10:25
1 stop13h 50m
LondonBoise
LHR - BOI
LHRBOI
London Heathrow
Sun 7/9
12:05-22:41
2 stops17h 36m
Boise Air Term. Gowen Fld
Sat 20/9
07:45-07:25
1 stop16h 40m
LondonHailey
LHR - SUN
LHRSUN
London Heathrow
Mon 1/9
06:30-21:56
2 stops22h 26m
Hailey Sun Valley-Friedman
Wed 10/9
15:15-20:00
2 stops21h 45m
LondonBoise
LHR - BOI
LHRBOI
London Heathrow
Fri 21/11
18:00-11:39
2 stops24h 39m
Boise Air Term. Gowen Fld
Sun 30/11
06:15-06:30
2 stops17h 15m
LondonHailey
LHR - SUN
LHRSUN
London Heathrow
Sat 30/8
08:40-21:56
2 stops44h 16m
Hailey Sun Valley-Friedman
Tue 9/9
12:37-11:00
2 stops15h 23m
LondonBoise
LHR - BOI
LHRBOI
London Heathrow
Fri 24/10
08:30-21:24
2 stops19h 54m
Boise Air Term. Gowen Fld
Mon 3/11
14:31-20:35
2 stops23h 04m
LondonBoise
LHR - BOI
LHRBOI
London Heathrow
Fri 5/9
06:10-21:48
2 stops22h 38m
Boise Air Term. Gowen Fld
Sun 21/9
13:07-05:50
2 stops33h 43m
LondonIdaho Falls
LHR - IDA
LHRIDA
London Heathrow
Sat 22/11
15:45-12:19
2 stops27h 34m
Idaho Falls Fanning Field
Wed 26/11
13:50-12:15
1 stop15h 25m
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.
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, October is the cheapest month in which you can book a flight from London Heathrow Airport to Idaho (average of £754). Flying from London Heathrow Airport to Idaho in August is currently the most expensive (average of £1,152). 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 4 July 2025.
When flying from London Heathrow Airport to Idaho, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
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 4 July 2025.
See what other customers who have flown with Delta, Alaska Airlines, andKLM 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.
Entertainment
Overall
Comfort
Crew
Boarding
Food
Reviews
Kim,May 2025
PIH - SLC
Entertainment
Overall
Comfort
Crew
Boarding
Food
Reviews
Kim,May 2025
PIH - SLC
Entertainment
Overall
Comfort
Crew
Boarding
Food
Reviews
Kim,May 2025
PIH - SLC
Entertainment
Overall
Comfort
Crew
Boarding
Food
Reviews
Kim,May 2025
PIH - SLC
Entertainment
Overall
Comfort
Crew
Boarding
Food
Reviews
Kim,May 2025
PIH - SLC
Entertainment
Overall
Comfort
Crew
Boarding
Food
Reviews
Kim,May 2025
PIH - SLC
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.
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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.
Top 6 airlines flying from Heathrow to Idaho
Discover the top 6 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 4 July 2025.
Fly with Cheapflights
Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.
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!