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.

£298 Cheap Flights from Idaho Falls to London in 2025/26

1 adult

0 bags

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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.

06:30 - 09:40

IDA

LHR

20h 10m1 stop

06:35 - 09:56

LHR

IDA

34h 21m2 stops

£470United Airlines

Wed, 28 Jan - Wed, 4 Feb

16:19 - 07:10

IDA

LHR

31h 51m2 stops

06:35 - 09:56

LHR

IDA

34h 21m2 stops

£473United Airlines

Wed, 28 Jan - Wed, 4 Feb

14:40 - 09:40

IDA

LHR

12h 00m1 stop

16:40 - 13:30

LHR

IDA

51h 50m2 stops

£478United Airlines

Fri, 30 Jan - Tue, 3 Feb

14:40 - 20:35

IDA

LHR

22h 55m2 stops

16:40 - 09:56

LHR

IDA

48h 16m2 stops

£482United Airlines

Fri, 30 Jan - Tue, 3 Feb

18:35 - 16:50

IDA

LHR

15h 15m2 stops

16:50 - 17:51

LHR

IDA

32h 01m2 stops

£485Delta

Mon, 12 Jan - Sun, 25 Jan

14:40 - 09:40

IDA

LHR

12h 00m1 stop

11:35 - 21:07

LHR

IDA

16h 32m1 stop

£491United Airlines

Fri, 30 Jan - Tue, 3 Feb

05:40 - 09:50

IDA

LHR

21h 10m1 stop

10:55 - 22:14

LHR

IDA

18h 19m1 stop

£503Delta

Tue, 7 Apr - Tue, 14 Apr

13:11 - 13:30

IDA

LHR

17h 19m2 stops

12:25 - 22:14

LHR

IDA

16h 49m2 stops

£506Delta

Tue, 7 Apr - Tue, 14 Apr

10:50 - 12:20

IDA

LHR

18h 30m1 stop

07:25 - 09:53

LHR

IDA

33h 28m2 stops

£612United Airlines

Tue, 7 Apr - Tue, 14 Apr

06:30 - 07:15

IDA

LHR

17h 45m2 stops

06:55 - 09:53

LHR

IDA

33h 58m2 stops

£616United Airlines

Tue, 7 Apr - Tue, 14 Apr

Delta flights from Idaho Falls to London

Our best Delta deals on Idaho Falls to London flight tickets

Delta

7 Apr

IDA05:40Idaho Falls Fanning Field

21h 10m

1 stop

LHR09:50London Heathrow

14 Apr

LHR10:55London Heathrow

18h 19m

1 stop

IDA22:14Idaho Falls Fanning Field

£503

Find similar

Delta

7 Apr

IDA13:11Idaho Falls Fanning Field

13h 39m

1 stop

LHR09:50London Heathrow

14 Apr

LHR11:45London Heathrow

17h 29m

2 stops

IDA22:14Idaho Falls Fanning Field

£506

Find similar

Delta

13 May

IDA06:10Idaho Falls Fanning Field

18h 05m

2 stops

LHR07:15London Heathrow

27 May

LHR11:30London Heathrow

17h 44m

2 stops

IDA22:14Idaho Falls Fanning Field

£687

Find similar

United Airlines flights from Idaho Falls to London

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

United Airlines

28 Jan

IDA06:30Idaho Falls Fanning Field

20h 10m

1 stop

LHR09:40London Heathrow

4 Feb

LHR06:35London Heathrow

34h 21m

2 stops

IDA09:56Idaho Falls Fanning Field

£470

Find similar

United Airlines

28 Jan

IDA16:19Idaho Falls Fanning Field

31h 51m

2 stops

LHR07:10London Heathrow

4 Feb

LHR06:35London Heathrow

34h 21m

2 stops

IDA09:56Idaho Falls Fanning Field

£473

Find similar

United Airlines

30 Jan

IDA14:40Idaho Falls Fanning Field

12h 00m

1 stop

LHR09:40London Heathrow

3 Feb

LHR16:40London Heathrow

51h 50m

2 stops

IDA13:30Idaho Falls Fanning Field

£478

Find similar

Fly from

Fly to

Route

Depart

Return

Price

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Wed 28/1

06:30-09:40

1 stop20h 10m

London Heathrow

Wed 4/2

06:35-09:56

2 stops34h 21m

£470

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Wed 28/1

16:19-07:10

2 stops31h 51m

London Heathrow

Wed 4/2

06:35-09:56

2 stops34h 21m

£473

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Fri 30/1

14:40-09:40

1 stop12h 00m

London Heathrow

Tue 3/2

16:40-13:30

2 stops51h 50m

£478

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Fri 30/1

14:40-20:35

2 stops22h 55m

London Heathrow

Tue 3/2

16:40-09:56

2 stops48h 16m

£482

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Mon 12/1

18:35-16:50

2 stops15h 15m

London Heathrow

Sun 25/1

16:50-17:51

2 stops32h 01m

£485

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Fri 30/1

14:40-09:40

1 stop12h 00m

London Heathrow

Tue 3/2

11:35-21:07

1 stop16h 32m

£491

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Tue 7/4

05:40-09:50

1 stop21h 10m

London Heathrow

Tue 14/4

10:55-22:14

1 stop18h 19m

£503

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Tue 7/4

13:11-13:30

2 stops17h 19m

London Heathrow

Tue 14/4

12:25-22:14

2 stops16h 49m

£506

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Tue 7/4

10:50-12:20

1 stop18h 30m

London Heathrow

Tue 14/4

07:25-09:53

2 stops33h 28m

£612

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Tue 7/4

06:30-07:15

2 stops17h 45m

London Heathrow

Tue 14/4

06:55-09:53

2 stops33h 58m

£616

Flights are sorted by cheapest return flights first.

Showing 1-10 of 14 resultsSorted by cheapest first

How to get the cheapest flight ticket from Idaho Falls to London

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Idaho Falls Fanning Field to London?

United Airlines and American Airlines are the most popular carriers operating from Idaho Falls Fanning Field to London

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.

Eastbourne

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Maidstone

Slough

Southend-on-Sea

Canterbury

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Ilford

Guildford

Hayes

Chelmsford

Dover

Worthing

Colchester

Bedford

Ramsgate

Hounslow

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.