How do I get Price Alerts for flights from Idaho Falls to London?

Confirm your travel details to search for the latest offers for flights from Idaho Falls to London . While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

How can I save money on flights from Idaho Falls to London with momondo?

By using tools like our “Price Calendar”, you can see the best days for return flights on your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.

How does momondo find its flight prices?

We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.

When did momondo last update prices for flights from Idaho Falls Fanning Field Airport to London?

Prices for flights from Idaho Falls Fanning Field Airport to London are refreshed on a daily basis.

How old do you have to be to fly from Idaho Falls Fanning Field Airport to London?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Idaho Falls Fanning Field Airport to London.

What documentation or ID do you need to fly to London?

The necessary travel and health documents for your London trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

£465 Cheap Flights from Idaho Falls to London in 2025/26

1 adult

0 bags

Voted winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Idaho Falls to London

Round-trip

One-way

Cheap return flights

Enter your travel dates to find the best prices.

10:45 - 12:20IDA-LHR

18h 35m1 stop

16:25 - 17:22LHR-IDA

31h 57m2 stops

£558United Airlines

Find Deal

Tue, 7 Apr - Tue, 14 Apr

07:00 - 07:40IDA-LHR

17h 40m2 stops

16:25 - 17:22LHR-IDA

31h 57m2 stops

£562United Airlines

Find Deal

Tue, 7 Apr - Tue, 14 Apr

10:45 - 09:40IDA-LHR

15h 55m1 stop

07:30 - 09:28LHR-IDA

32h 58m2 stops

£570United Airlines

Find Deal

Tue, 7 Apr - Tue, 14 Apr

07:00 - 07:40IDA-LHR

17h 40m2 stops

07:30 - 09:28LHR-IDA

32h 58m2 stops

£573United Airlines

Find Deal

Tue, 7 Apr - Tue, 14 Apr

13:05 - 09:50IDA-LHR

13h 45m1 stop

10:55 - 18:14LHR-IDA

14h 19m1 stop

£580KLM

Find Deal

Tue, 7 Apr - Tue, 14 Apr

10:45 - 09:40IDA-LHR

15h 55m1 stop

13:40 - 17:22LHR-IDA

34h 42m2 stops

£596United Airlines

Find Deal

Fri, 3 Apr - Tue, 7 Apr

18:45 - 20:00IDA-LHR

18h 15m2 stops

10:15 - 22:21LHR-IDA

19h 06m2 stops

£653Delta

Find Deal

Fri, 3 Apr - Tue, 7 Apr

05:55 - 11:40IDA-LHR

22h 45m2 stops

14:40 - 12:27LHR-IDA

28h 47m2 stops

£1,004Delta

Find Deal

Wed, 24 Dec - Thu, 1 Jan

13:16 - 10:00IDA-LHR

13h 44m1 stop

08:20 - 12:46LHR-IDA

35h 26m1 stop

£1,165American Airlines

Find Deal

Tue, 23 Dec - Thu, 1 Jan

05:55 - 10:00IDA-LHR

21h 05m1 stop

20:25 - 18:17LHR-IDA

28h 52m2 stops

£1,362Multiple Airlines

Find Deal

Wed, 24 Dec - Fri, 2 Jan

American Airlines flights from Idaho Falls to London

Our best American Airlines deals on Idaho Falls to London flight tickets

American Airlines

6 Nov

IDA13:58Idaho Falls Fanning Field

13h 02m

1 stop

LHR10:00London Heathrow

12 Nov

LHR10:05London Heathrow

19h 29m

2 stops

IDA22:34Idaho Falls Fanning Field

£679

Find similar

American Airlines

6 Nov

IDA13:58Idaho Falls Fanning Field

13h 02m

1 stop

LHR10:00London Heathrow

12 Nov

LHR14:25London Heathrow

15h 09m

1 stop

IDA22:34Idaho Falls Fanning Field

£947

Find similar

American Airlines

23 Dec

IDA13:16Idaho Falls Fanning Field

13h 44m

1 stop

LHR10:00London Heathrow

1 Jan

LHR08:20London Heathrow

35h 26m

1 stop

IDA12:46Idaho Falls Fanning Field

£1,165

Find similar

Delta flights from Idaho Falls to London

Our best Delta deals on Idaho Falls to London flight tickets

Delta

3 Apr

IDA18:45Idaho Falls Fanning Field

18h 15m

2 stops

LHR20:00London Heathrow

7 Apr

LHR10:15London Heathrow

19h 06m

2 stops

IDA22:21Idaho Falls Fanning Field

£653

Find similar

Delta

6 Nov

IDA13:15Idaho Falls Fanning Field

16h 35m

2 stops

LHR12:50London Heathrow

12 Nov

LHR10:10London Heathrow

19h 09m

2 stops

IDA22:19Idaho Falls Fanning Field

£747

Find similar

Delta

24 Dec

IDA05:55Idaho Falls Fanning Field

22h 45m

2 stops

LHR11:40London Heathrow

1 Jan

LHR14:40London Heathrow

28h 47m

2 stops

IDA12:27Idaho Falls Fanning Field

£1,004

Find similar

Fly from

Fly to

Route

Depart

Return

Price

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Tue 7/4

10:45-12:20

1 stop18h 35m

London Heathrow

Tue 14/4

16:25-17:22

2 stops31h 57m

£558

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Tue 7/4

07:00-07:40

2 stops17h 40m

London Heathrow

Tue 14/4

16:25-17:22

2 stops31h 57m

£562

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Tue 7/4

10:45-09:40

1 stop15h 55m

London Heathrow

Tue 14/4

07:30-09:28

2 stops32h 58m

£570

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Tue 7/4

07:00-07:40

2 stops17h 40m

London Heathrow

Tue 14/4

07:30-09:28

2 stops32h 58m

£573

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Tue 7/4

13:05-09:50

1 stop13h 45m

London Heathrow

Tue 14/4

10:55-18:14

1 stop14h 19m

£580

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Fri 3/4

10:45-09:40

1 stop15h 55m

London Heathrow

Tue 7/4

13:40-17:22

2 stops34h 42m

£596

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Fri 3/4

18:45-20:00

2 stops18h 15m

London Heathrow

Tue 7/4

10:15-22:21

2 stops19h 06m

£653

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Wed 24/12

05:55-11:40

2 stops22h 45m

London Heathrow

Thu 1/1

14:40-12:27

2 stops28h 47m

£1,004

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Tue 23/12

13:16-10:00

1 stop13h 44m

London Heathrow

Thu 1/1

08:20-12:46

1 stop35h 26m

£1,165

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Wed 24/12

05:55-10:00

1 stop21h 05m

London Heathrow

Fri 2/1

20:25-18:17

2 stops28h 52m

£1,362

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

When to book flights from Idaho Falls to London

Are you open to changing your travel dates? Check out the ideal times to fly from Idaho Falls to London according to our flight data. Find out which month and days have the cheapest flights.

Estimated return price

Cheap Idaho Falls to London (IDA to LON) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Idaho Falls to London

Direct flights	None

There are no direct flights from Idaho Falls to London. There are no popular flight routes from Idaho Falls to London.

Search flight deals

How far is Idaho Falls Fanning Field to London by plane?
There are 4715.6 mi between Idaho Falls Fanning Field and London. By plane, this route typically takes 11h 23m.
When did momondo last update prices for flights from Idaho Falls Fanning Field Airport to London?
Prices for flights from Idaho Falls Fanning Field Airport to London are refreshed on a daily basis.
How old do you have to be to fly from Idaho Falls Fanning Field Airport to London?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Idaho Falls Fanning Field Airport to London.
What documentation or ID do you need to fly to London?
The necessary travel and health documents for your London trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

How do I get Price Alerts for flights from Idaho Falls to London?
Confirm your travel details to search for the latest offers for flights from Idaho Falls to London. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.
How can I save money on flights from Idaho Falls to London with momondo?
By using tools like our “Price Calendar”, you can see the best days for return flights on your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.
How does momondo find its flight prices?
We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.

Eastbourne

Milton Keynes

Luton

Gatwick

Maidstone

Slough

Canterbury

Southend-on-Sea

Ipswich

Ilford

Guildford

Colchester

Dover

Hayes

Chelmsford

Worthing

Dartford

Ramsgate

Bedford

Stansted

Why use momondo?

Why should I use momondo to find a flight deal from Idaho Falls to London?

It is quick and easy to find Idaho Falls to London flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to London that suits you.

Can I find flights from Idaho Falls to London with flexible booking policies on momondo?

All flight searches from Idaho Falls to London on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Idaho Falls to London?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Idaho Falls to London.

I’m not ready to book a flight from Idaho Falls to London right now. Can momondo alert me if prices change?

If you are simply researching potential flights to London, momondo offers a useful price alert feature which will track prices for flights to London from Idaho Falls and alert you when they change.