£116+ 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 11/5. 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
18 May — 25 May1
1 adult
1 adult, Economy, 0 bags

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 18 April 2026. In the last 7 days, Cheapflights users made a total of 858,174 searches

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Wed 7/10

13:10-10:00

1 stop13h 50m

London Heathrow

Tue 13/10

10:55-22:19

1 stop18h 24m

£670

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Wed 7/10

13:10-12:15

2 stops16h 05m

London Heathrow

Tue 13/10

09:55-22:19

2 stops19h 24m

£673

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Fri 18/9

17:53-21:25

2 stops20h 32m

London Heathrow

Wed 23/9

11:25-21:03

1 stop16h 38m

£711

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Thu 17/9

18:50-10:00

1 stop32h 10m

London Heathrow

Tue 22/9

10:55-18:14

1 stop14h 19m

£756

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Wed 13/5

06:30-07:15

2 stops17h 45m

London Heathrow

Mon 25/5

14:05-17:19

2 stops34h 14m

£808

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Fri 18/9

17:53-21:25

2 stops20h 32m

London Heathrow

Sat 26/9

15:20-09:53

2 stops25h 33m

£829

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Wed 13/5

07:48-15:05

1 stop24h 17m

London Heathrow

Mon 25/5

12:55-22:15

1 stop16h 20m

£907

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Wed 13/5

07:48-10:50

1 stop20h 02m

London Heathrow

Mon 25/5

12:55-22:15

1 stop16h 20m

£907
Cheapest one-way

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Fri 19/6

22:56-20:55

3 stops38h 59m

£358

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Sat 20/6

16:02-12:05

2 stops37h 03m

£612

Flights are sorted by cheapest return flights first.

Deals found on 16/4

Showing 1-10 of 14 resultsSorted by cheapest first
1
2

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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No data available for this route at this time. Please check back soon.

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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 18 April 2026.

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

    This month, the top selected destinations from Idaho Falls are Las Vegas, Santa Ana, California, Denver. Throughout the year, Las Vegas, Denver, Seattle 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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