£138+ Cheap flights from Idaho Falls
This is the cheapest return flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 20/11. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
Find flights from Idaho Falls
Cheapest flights from Idaho FallsExplore the most affordable flight options available from Idaho Falls. Find the lowest fares based on data from user searches, with prices last updated on 18 September 2025.
Explore the most affordable flight options available from Idaho Falls. Find the lowest fares based on data from user searches, with prices last updated on 18 September 2025.
Find flights from Idaho Falls within your budget
Fly to
Route
Depart
Return
Price
Idaho FallsLondon
IDA - LHR
IDALHR
Idaho Falls Fanning Field
Fri 31/10
05:00-07:30
2 stops20h 30m
London Heathrow
Fri 7/11
13:00-17:46
2 stops35h 46m
Idaho FallsLondon
IDA - LHR
IDALHR
Idaho Falls Fanning Field
Thu 4/12
07:00-06:40
2 stops16h 40m
London Heathrow
Thu 18/12
11:35-21:14
1 stop16h 39m
Idaho FallsLondon
IDA - LHR
IDALHR
Idaho Falls Fanning Field
Fri 31/10
15:50-12:20
1 stop14h 30m
London Heathrow
Fri 7/11
14:25-22:34
1 stop15h 09m
Idaho FallsLondon
IDA - LHR
IDALHR
Idaho Falls Fanning Field
Sun 2/11
16:15-18:35
2 stops19h 20m
London Heathrow
Sat 8/11
15:30-21:03
2 stops36h 33m
Idaho FallsLondon
IDA - LHR
IDALHR
Idaho Falls Fanning Field
Sun 2/11
05:05-11:20
1 stop23h 15m
London Heathrow
Sat 8/11
10:45-18:13
1 stop14h 28m
Idaho FallsLondon
IDA - LHR
IDALHR
Idaho Falls Fanning Field
Mon 27/10
15:50-17:30
3 stops43h 40m
Idaho FallsLondon
IDA - LHR
IDALHR
Idaho Falls Fanning Field
Mon 27/10
13:11-11:35
1 stop16h 24m
Best time to book a flight from Idaho Falls
Have a flexible travel schedule? Discover the best time to fly from Idaho Falls with our price prediction graph.
Travel insights for flights from Idaho Falls
Get recent, data-driven insights about flights from Idaho Falls including ideal travel times, pricing trends, and more.
What is the cheapest month to book a flight from Idaho Falls?
Currently, March is the cheapest month in which you can book a flight from Idaho Falls (average of £508). Flying from Idaho Falls in June will prove the most costly (average of £826). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.
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Direct flights from Idaho
Book a direct flight from one of these other cities located in Idaho.
Related info for your journey
Access useful and relevant information related to your journey from Idaho Falls. This can include details such as airport transportation, visa requirements, travel insurance, luggage regulations, and any other information that can ensure a smooth and hassle-free travel experience. Please note that the information is based on general guidance and may need to be verified with official sources. Data last updated 18 September 2025.
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