£117+ 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 6/5. 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.
IDA — LHR
20 Feb — 27 Feb1
1 adult
1 adult, Economy, 0 bags

Find flights from Idaho Falls

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Cheapest flights from Idaho Falls
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 21 January 2026.

Tue 7/413:43
IDA
-
LHR
1 stop17h 42m
American Airlines
Tue 14/416:10
LHR
-
IDA
1 stop14h 29m
American Airlines
Deal found 19/1£464
Tue 7/417:20
IDA
-
LHR
2 stops33h 40m
United Airlines
Tue 14/406:55
LHR
-
IDA
2 stops33h 58m
United Airlines
Deal found 20/1£483
Wed 13/514:31
IDA
-
LHR
1 stop14h 49m
United Airlines
Wed 27/506:55
LHR
-
IDA
2 stops22h 58m
United Airlines
Deal found 20/1£593
Wed 13/513:43
IDA
-
LHR
2 stops17h 12m
American Airlines
Wed 27/510:05
LHR
-
IDA
1 stop18h 52m
American Airlines
Deal found 21/1£636
Wed 13/513:43
IDA
-
LHR
1 stop17h 02m
Multiple Airlines
Wed 27/512:55
LHR
-
IDA
1 stop16h 02m
Multiple Airlines
Deal found 21/1£644
Wed 13/517:26
IDA
-
LHR
1 stop11h 54m
United Airlines
Mon 25/517:40
LHR
-
IDA
2 stops36h 13m
United Airlines
Deal found 20/1£647

Find flights from Idaho Falls within your budget

 
Find flights departing from Idaho Falls that match your specified budget. Filter results by price range, allowing you to narrow down options and find flights that fit within your financial constraints. Please note that the search results are based on data from user searches, with fares last updated on 21 January 2026. In the last 7 days, Cheapflights users made a total of 858,174 searches

Fly to

Heathrow

Route

Depart

Return

Price

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Tue 7/4

13:43-14:25

1 stop17h 42m

London Heathrow

Tue 14/4

10:05-23:39

1 stop20h 34m

£464

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Fri 30/1

14:40-09:40

1 stop12h 00m

London Heathrow

Tue 3/2

16:40-09:56

2 stops48h 16m

£513

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Wed 13/5

14:31-12:20

1 stop14h 49m

London Heathrow

Wed 27/5

06:55-22:53

2 stops22h 58m

£593

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Wed 13/5

13:43-13:55

2 stops17h 12m

London Heathrow

Wed 27/5

10:05-21:57

1 stop18h 52m

£636

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Wed 13/5

13:43-13:45

1 stop17h 02m

London Heathrow

Wed 27/5

10:05-21:57

1 stop18h 52m

£644

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Fri 6/3

17:30-06:40

2 stops30h 10m

£301

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Fri 6/3

22:30-15:35

3 stops58h 05m

£394

Flights are sorted by cheapest return flights first.

Deals found on 19/1

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.
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.

Travel insights for flights from Idaho Falls

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Direct flights from Idaho

Book a direct flight from one of these other cities located in Idaho.
Direct flights from Boise

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 21 January 2026.

  • What are the most popular destinations to fly to from Idaho Falls?

    This month, the top selected destinations from Idaho Falls are Denver, Las Vegas, Guadalajara. Throughout the year, Las Vegas, Seattle, Denver are some of the top choices made by users flying from Idaho Falls.

  • How does Cheapflights help users find flights from Idaho Falls?

    Cheapflights makes it easy to find flights from Idaho Falls by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

    Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Idaho Falls for you. Better yet — we are completely free to use.

  • Can Cheapflights find flights from Idaho Falls with no change fees?

    Need flexible booking options for your flight from Idaho Falls ? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

  • Can Cheapflights notify me if prices for flights from Idaho Falls become cheaper?

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

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How does Cheapflights help users find flights from Idaho Falls?

Cheapflights makes it easy to find flights from Idaho Falls by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Idaho Falls for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Idaho Falls with no change fees?

Need flexible booking options for your flight from Idaho Falls ? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

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

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