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

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

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

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Idaho Falls Fanning Field Airport to United Kingdom.

What documentation or ID do you need to fly to United Kingdom?

The travel and health documents required for your trip to United Kingdom can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at United Kingdom. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

£421 Cheap Flights from Idaho Falls to the United Kingdom in 2026

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Find the cheapest flights from Idaho Falls to the United Kingdom

Round-trip

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

07:48 - 10:50

IDA

LHR

20h 02m

1 stop

08:15 - 13:13

LHR

IDA

35h 58m

2 stops

£691American Airlines

Tue, 12 May - Tue, 19 May

17:26 - 12:25

IDA

LHR

11h 59m

1 stop

07:25 - 09:55

LHR

IDA

33h 30m

2 stops

£708United Airlines

Tue, 12 May - Tue, 19 May

12:12 - 10:55

IDA

LHR

15h 43m

1 stop

12:55 - 21:22

LHR

IDA

15h 27m

1 stop

£710Multiple Airlines

Fri, 21 Aug - Fri, 4 Sep

17:26 - 20:40

IDA

LHR

20h 14m

2 stops

07:25 - 09:55

LHR

IDA

33h 30m

2 stops

£712United Airlines

Tue, 12 May - Tue, 19 May

14:30 - 09:40

IDA

LHR

12h 10m

1 stop

07:30 - 21:03

LHR

IDA

20h 33m

2 stops

£713United Airlines

Tue, 28 Apr - Tue, 5 May

17:20 - 20:40

IDA

LHR

20h 20m

2 stops

07:30 - 21:03

LHR

IDA

20h 33m

2 stops

£716United Airlines

Tue, 28 Apr - Tue, 5 May

14:20 - 12:50

IDA

LHR

15h 30m

1 stop

08:55 - 21:22

LHR

IDA

19h 27m

1 stop

£717American Airlines

Thu, 17 Sep - Fri, 25 Sep

07:48 - 10:50

IDA

LHR

20h 02m

1 stop

14:25 - 13:13

LHR

IDA

29h 48m

1 stop

£718American Airlines

Tue, 12 May - Tue, 19 May

12:12 - 12:10

IDA

LHR

16h 58m

1 stop

09:15 - 21:22

LHR

IDA

19h 07m

2 stops

£720American Airlines

Fri, 21 Aug - Fri, 4 Sep

12:12 - 09:05

IDA

LHR

13h 53m

1 stop

10:05 - 21:22

LHR

IDA

18h 17m

2 stops

£722American Airlines

Thu, 17 Sep - Fri, 25 Sep

American Airlines flights from Idaho Falls to United Kingdom

Our best American Airlines deals on Idaho Falls to United Kingdom flight tickets

American Airlines

12 May

IDA07:48Idaho Falls Fanning Field

20h 02m

1 stop

LHR10:50London Heathrow

19 May

LHR08:15London Heathrow

35h 58m

2 stops

IDA13:13Idaho Falls Fanning Field

£691

American Airlines

17 Sept

IDA14:20Idaho Falls Fanning Field

15h 30m

1 stop

LHR12:50London Heathrow

25 Sept

LHR08:55London Heathrow

19h 27m

1 stop

IDA21:22Idaho Falls Fanning Field

£717

American Airlines

12 May

IDA07:48Idaho Falls Fanning Field

20h 02m

1 stop

LHR10:50London Heathrow

19 May

LHR14:25London Heathrow

29h 48m

1 stop

IDA13:13Idaho Falls Fanning Field

£718

United Airlines flights from Idaho Falls to United Kingdom

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

United Airlines

12 May

IDA17:26Idaho Falls Fanning Field

11h 59m

1 stop

LHR12:25London Heathrow

19 May

LHR07:25London Heathrow

33h 30m

2 stops

IDA09:55Idaho Falls Fanning Field

£708

United Airlines

12 May

IDA17:26Idaho Falls Fanning Field

20h 14m

2 stops

LHR20:40London Heathrow

19 May

LHR07:25London Heathrow

33h 30m

2 stops

IDA09:55Idaho Falls Fanning Field

£712

United Airlines

28 Apr

IDA14:30Idaho Falls Fanning Field

12h 10m

1 stop

LHR09:40London Heathrow

5 May

LHR07:30London Heathrow

20h 33m

2 stops

IDA21:03Idaho Falls Fanning Field

£713

momondo Fare Finder

Use the filters below to find and compare flights from Idaho Falls to the United Kingdom that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Tue 12/5

07:48-10:50

1 stop20h 02m

London Heathrow

Tue 19/5

08:15-13:13

2 stops35h 58m

£691

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Tue 12/5

17:26-12:25

1 stop11h 59m

London Heathrow

Tue 19/5

07:25-09:55

2 stops33h 30m

£708

Fastest return journey

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Fri 21/8

12:12-10:55

1 stop15h 43m

London Heathrow

Fri 4/9

12:55-21:22

1 stop15h 27m

£710

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Tue 12/5

17:26-20:40

2 stops20h 14m

London Heathrow

Tue 19/5

07:25-09:55

2 stops33h 30m

£712

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Tue 28/4

14:30-09:40

1 stop12h 10m

London Heathrow

Tue 5/5

07:30-21:03

2 stops20h 33m

£713

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Tue 28/4

17:20-20:40

2 stops20h 20m

London Heathrow

Tue 5/5

07:30-21:03

2 stops20h 33m

£716

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Thu 17/9

14:20-12:50

1 stop15h 30m

London Heathrow

Fri 25/9

08:55-21:22

1 stop19h 27m

£717

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Tue 12/5

07:48-10:50

1 stop20h 02m

London Heathrow

Tue 19/5

14:25-13:13

1 stop29h 48m

£718

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Fri 21/8

12:12-12:10

1 stop16h 58m

London Heathrow

Fri 4/9

09:15-21:22

2 stops19h 07m

£720

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Thu 17/9

12:12-09:05

1 stop13h 53m

London Heathrow

Fri 25/9

10:05-21:22

2 stops18h 17m

£722

Flights are sorted by cheapest return flights first.

Showing 1-10 of 13 resultsSorted by cheapest first

How to get the cheapest flight ticket from Idaho Falls to United Kingdom

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 United Kingdom?

American Airlines is the most popular carrier operating from Idaho Falls Fanning Field to United Kingdom

Cheap Idaho Falls to United Kingdom flight deals and tips

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

Fastest flight time	12h 09m
Direct flights	None

The fastest flight from Idaho Falls to United Kingdom takes 12h 09m

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

Search flight deals

Frequently asked questions about flying from Idaho Falls to the United Kingdom

When did momondo last update prices for flights from Idaho Falls Fanning Field Airport to United Kingdom?
Prices for flights from Idaho Falls Fanning Field Airport to United Kingdom are refreshed on a daily basis.
How old do you have to be to fly from Idaho Falls Fanning Field Airport to United Kingdom?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Idaho Falls Fanning Field Airport to United Kingdom.
What documentation or ID do you need to fly to United Kingdom?
The travel and health documents required for your trip to United Kingdom can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at United Kingdom. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to United Kingdom from Idaho Falls.

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

Flights from Idaho Falls to United Kingdom with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo provides multiple filters to help you find the best flight to United Kingdom from Idaho Falls. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Of course. momondo tracks the price of Idaho Falls to United Kingdom flights. All you need is a valid email address and we will do the rest; it is that quick and easy.