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.

£462 Cheap Flights from Idaho Falls to London in 2026

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.

06:35 - 09:40

IDA

LHR

20h 05m

1 stop

06:35 - 15:40

LHR

IDA

40h 05m

2 stops

£463United Airlines

Fri, 27 Feb - Tue, 3 Mar

17:33 - 20:35

IDA

LHR

20h 02m

2 stops

06:35 - 13:30

LHR

IDA

37h 55m

2 stops

£466United Airlines

Fri, 27 Feb - Tue, 3 Mar

17:20 - 12:20

IDA

LHR

12h 00m

1 stop

09:00 - 09:53

LHR

IDA

31h 53m

2 stops

£475United Airlines

Tue, 7 Apr - Tue, 14 Apr

17:20 - 06:30

IDA

LHR

30h 10m

2 stops

07:25 - 09:53

LHR

IDA

33h 28m

2 stops

£478United Airlines

Tue, 7 Apr - Tue, 14 Apr

10:45 - 09:40

IDA

LHR

15h 55m

1 stop

11:35 - 20:58

LHR

IDA

16h 23m

1 stop

£484United Airlines

Fri, 27 Feb - Tue, 3 Mar

17:20 - 09:40

IDA

LHR

33h 20m

1 stop

14:50 - 09:53

LHR

IDA

26h 03m

1 stop

£497United Airlines

Tue, 7 Apr - Tue, 14 Apr

06:30 - 12:20

IDA

LHR

22h 50m

1 stop

06:55 - 20:58

LHR

IDA

21h 03m

2 stops

£568United Airlines

Wed, 13 May - Wed, 27 May

14:31 - 09:40

IDA

LHR

12h 09m

1 stop

06:55 - 09:55

LHR

IDA

34h 00m

2 stops

£572United Airlines

Wed, 13 May - Wed, 27 May

14:31 - 09:40

IDA

LHR

12h 09m

1 stop

11:25 - 20:58

LHR

IDA

16h 33m

1 stop

£589United Airlines

Wed, 13 May - Wed, 27 May

06:30 - 12:20

IDA

LHR

22h 50m

1 stop

15:30 - 17:22

LHR

IDA

32h 52m

2 stops

£610United Airlines

Wed, 13 May - Mon, 25 May

American Airlines flights from Idaho Falls to London

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

American Airlines

13 May

IDA07:30Idaho Falls Fanning Field

16h 15m

2 stops

LHR06:45London Heathrow

27 May

LHR11:10London Heathrow

17h 47m

2 stops

IDA21:57Idaho Falls Fanning Field

£680

American Airlines

13 May

IDA07:30Idaho Falls Fanning Field

16h 15m

2 stops

LHR06:45London Heathrow

25 May

LHR11:10London Heathrow

17h 47m

2 stops

IDA21:57Idaho Falls Fanning Field

£724

American Airlines

28 Jun

IDA13:43Idaho Falls Fanning Field

14h 12m

1 stop

LHR10:55London Heathrow

6 Jul

LHR12:55London Heathrow

16h 02m

1 stop

IDA21:57Idaho Falls Fanning Field

£1,010

United Airlines flights from Idaho Falls to London

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

United Airlines

27 Feb

IDA06:35Idaho Falls Fanning Field

20h 05m

1 stop

LHR09:40London Heathrow

3 Mar

LHR06:35London Heathrow

40h 05m

2 stops

IDA15:40Idaho Falls Fanning Field

£463

United Airlines

27 Feb

IDA17:33Idaho Falls Fanning Field

20h 02m

2 stops

LHR20:35London Heathrow

3 Mar

LHR06:35London Heathrow

37h 55m

2 stops

IDA13:30Idaho Falls Fanning Field

£466

United Airlines

7 Apr

IDA17:20Idaho Falls Fanning Field

12h 00m

1 stop

LHR12:20London Heathrow

14 Apr

LHR09:00London Heathrow

31h 53m

2 stops

IDA09:53Idaho Falls Fanning Field

£475

Fly from

Fly to

Route

Depart

Return

Price

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Fri 27/2

06:35-09:40

1 stop20h 05m

London Heathrow

Tue 3/3

06:35-15:40

2 stops40h 05m

£463

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Fri 27/2

17:33-20:35

2 stops20h 02m

London Heathrow

Tue 3/3

06:35-13:30

2 stops37h 55m

£466

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Tue 7/4

17:20-12:20

1 stop12h 00m

London Heathrow

Tue 14/4

09:00-09:53

2 stops31h 53m

£475

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Tue 7/4

17:20-06:30

2 stops30h 10m

London Heathrow

Tue 14/4

07:25-09:53

2 stops33h 28m

£478

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Fri 27/2

10:45-09:40

1 stop15h 55m

London Heathrow

Tue 3/3

11:35-20:58

1 stop16h 23m

£484

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Tue 7/4

17:20-09:40

1 stop33h 20m

London Heathrow

Tue 14/4

14:50-09:53

1 stop26h 03m

£497

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Wed 13/5

06:30-12:20

1 stop22h 50m

London Heathrow

Wed 27/5

06:55-20:58

2 stops21h 03m

£568

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Wed 13/5

14:31-09:40

1 stop12h 09m

London Heathrow

Wed 27/5

06:55-09:55

2 stops34h 00m

£572

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Wed 13/5

14:31-09:40

1 stop12h 09m

London Heathrow

Wed 27/5

11:25-20:58

1 stop16h 33m

£589

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Wed 13/5

06:30-12:20

1 stop22h 50m

London Heathrow

Mon 25/5

15:30-17:22

2 stops32h 52m

£610

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

Fastest flight time	12h 00m
Direct flights	None

The fastest flight from Idaho Falls to London takes 12h 00m

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 12h 00m.
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

Southend-on-Sea

Canterbury

Ipswich

Ilford

Guildford

Chelmsford

Hayes

Dover

Folkestone

Worthing

Colchester

Bedford

Ramsgate

Chichester

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.