£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 24/1. 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 Nov — 27 Nov1
1 adult
1 adult, Economy

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 October 2025.

Wed 3/1206:00IDA - LHR
2 stops18h 50mVirgin Atlantic
Fri 12/1212:20LHR - IDA
2 stops37h 06mVirgin Atlantic
Deal found 20/10£459
Sun 7/1219:06IDA - LHR
1 stop31h 54mDelta
Sun 14/1208:40LHR - IDA
2 stops44h 41mDelta
Deal found 21/10£463
Thu 4/1210:58IDA - LHR
1 stop15h 42mUnited Airlines
Thu 11/1206:35LHR - IDA
2 stops34h 12mUnited Airlines
Deal found 20/10£481
Wed 3/1213:58IDA - LHR
1 stop14h 42mMultiple Airlines
Fri 12/1214:25LHR - IDA
1 stop15h 11mMultiple Airlines
Deal found 20/10£485
Sun 7/1206:00IDA - LHR
2 stops17h 50mMultiple Airlines
Sun 14/1210:45LHR - IDA
1 stop14h 41mMultiple Airlines
Deal found 21/10£488
Thu 4/1213:58IDA - LHR
1 stop13h 02mMultiple Airlines
Thu 11/1214:20LHR - IDA
1 stop15h 16mMultiple Airlines
Deal found 20/10£504
Sun 7/1213:58IDA - LHR
1 stop15h 17mAmerican Airlines
Sun 14/1216:30LHR - IDA
1 stop27h 57mAmerican Airlines
Deal found 20/10£504
Sun 7/1214:45IDA - LHR
1 stop11h 55mUnited Airlines
Sun 14/1216:20LHR - IDA
2 stops24h 27mUnited Airlines
Deal found 21/10£507

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 October 2025. 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 2/12

13:17-10:00

1 stop13h 43m

London Heathrow

Tue 9/12

10:45-18:26

1 stop14h 41m

£448

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Tue 2/12

06:00-10:00

1 stop21h 00m

London Heathrow

Tue 9/12

08:55-22:21

2 stops20h 26m

£451

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Sun 7/12

19:06-10:00

1 stop31h 54m

London Heathrow

Sun 14/12

08:40-22:21

2 stops44h 41m

£463

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Thu 4/12

10:58-09:40

1 stop15h 42m

London Heathrow

Thu 11/12

06:35-09:47

2 stops34h 12m

£481

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Wed 3/12

13:58-11:40

1 stop14h 42m

London Heathrow

Fri 12/12

14:25-22:36

1 stop15h 11m

£485

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Wed 3/12

10:58-09:40

1 stop15h 42m

London Heathrow

Fri 12/12

13:25-09:47

2 stops27h 22m

£485

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Sun 7/12

06:00-06:50

2 stops17h 50m

London Heathrow

Sun 14/12

10:45-18:26

1 stop14h 41m

£488

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Thu 4/12

13:58-10:00

1 stop13h 02m

London Heathrow

Thu 11/12

14:20-22:36

1 stop15h 16m

£504

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Sun 7/12

13:58-12:15

1 stop15h 17m

London Heathrow

Sun 14/12

16:30-13:27

1 stop27h 57m

£504

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Tue 28/10

08:30-05:55

2 stops15h 25m

£297

Flights are sorted by cheapest return flights first.

Deals found on 21/10

Showing 1-10 of 18 results
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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

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 £516). Flying from Idaho Falls in June will prove the most costly (average of £840). 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.
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 October 2025.

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

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

  • What is the cheapest month to fly from Idaho Falls?

    At the present moment the cheapest month to fly from Idaho Falls is currently March; with June being the most expensive. Prices will vary depending on multiple factors such as booking in advance, airline and departure airports and times.

  • 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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