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

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 refresh daily.

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

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 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.

$559 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 round-trip flights

Enter your travel dates to find the best prices.

7:48 am - 10:50 am

IDA

LHR

20h 02m

1 stop

8:15 am - 1:13 pm

LHR

IDA

35h 58m

2 stops

$918American Airlines

Tue, May 12 - Tue, May 19

5:26 pm - 12:25 pm

IDA

LHR

11h 59m

1 stop

7:25 am - 9:55 am

LHR

IDA

33h 30m

2 stops

$941United Airlines

Tue, May 12 - Tue, May 19

12:12 pm - 10:55 am

IDA

LHR

15h 43m

1 stop

12:55 pm - 9:22 pm

LHR

IDA

15h 27m

1 stop

$943Multiple Airlines

Fri, Aug 21 - Fri, Sep 4

5:26 pm - 8:40 pm

IDA

LHR

20h 14m

2 stops

7:25 am - 9:55 am

LHR

IDA

33h 30m

2 stops

$946United Airlines

Tue, May 12 - Tue, May 19

2:30 pm - 9:40 am

IDA

LHR

12h 10m

1 stop

7:30 am - 9:03 pm

LHR

IDA

20h 33m

2 stops

$947United Airlines

Tue, Apr 28 - Tue, May 5

5:20 pm - 8:40 pm

IDA

LHR

20h 20m

2 stops

7:30 am - 9:03 pm

LHR

IDA

20h 33m

2 stops

$951United Airlines

Tue, Apr 28 - Tue, May 5

2:20 pm - 12:50 pm

IDA

LHR

15h 30m

1 stop

8:55 am - 9:22 pm

LHR

IDA

19h 27m

1 stop

$953American Airlines

Thu, Sep 17 - Fri, Sep 25

7:48 am - 10:50 am

IDA

LHR

20h 02m

1 stop

2:25 pm - 1:13 pm

LHR

IDA

29h 48m

1 stop

$954American Airlines

Tue, May 12 - Tue, May 19

12:12 pm - 12:10 pm

IDA

LHR

16h 58m

1 stop

9:15 am - 9:22 pm

LHR

IDA

19h 07m

2 stops

$957American Airlines

Fri, Aug 21 - Fri, Sep 4

12:12 pm - 9:05 am

IDA

LHR

13h 53m

1 stop

10:05 am - 9:22 pm

LHR

IDA

18h 17m

2 stops

$959American Airlines

Thu, Sep 17 - Fri, Sep 25

American Airlines flights from Idaho Falls to United Kingdom

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

American Airlines

May 12

IDA7:48 amIdaho Falls Fanning Field

20h 02m

1 stop

LHR10:50 amLondon Heathrow

May 19

LHR8:15 amLondon Heathrow

35h 58m

2 stops

IDA1:13 pmIdaho Falls Fanning Field

$918

American Airlines

Sep 17

IDA2:20 pmIdaho Falls Fanning Field

15h 30m

1 stop

LHR12:50 pmLondon Heathrow

Sep 25

LHR8:55 amLondon Heathrow

19h 27m

1 stop

IDA9:22 pmIdaho Falls Fanning Field

$953

American Airlines

May 12

IDA7:48 amIdaho Falls Fanning Field

20h 02m

1 stop

LHR10:50 amLondon Heathrow

May 19

LHR2:25 pmLondon Heathrow

29h 48m

1 stop

IDA1:13 pmIdaho Falls Fanning Field

$954

United Airlines flights from Idaho Falls to United Kingdom

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

United Airlines

May 12

IDA5:26 pmIdaho Falls Fanning Field

11h 59m

1 stop

LHR12:25 pmLondon Heathrow

May 19

LHR7:25 amLondon Heathrow

33h 30m

2 stops

IDA9:55 amIdaho Falls Fanning Field

$941

United Airlines

May 12

IDA5:26 pmIdaho Falls Fanning Field

20h 14m

2 stops

LHR8:40 pmLondon Heathrow

May 19

LHR7:25 amLondon Heathrow

33h 30m

2 stops

IDA9:55 amIdaho Falls Fanning Field

$946

United Airlines

Apr 28

IDA2:30 pmIdaho Falls Fanning Field

12h 10m

1 stop

LHR9:40 amLondon Heathrow

May 5

LHR7:30 amLondon Heathrow

20h 33m

2 stops

IDA9:03 pmIdaho Falls Fanning Field

$947

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 round-trip

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Tue 5/12

7:48 am-10:50 am

1 stop20h 02m

London Heathrow

Tue 5/19

8:15 am-1:13 pm

2 stops35h 58m

$918

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Tue 5/12

5:26 pm-12:25 pm

1 stop11h 59m

London Heathrow

Tue 5/19

7:25 am-9:55 am

2 stops33h 30m

$941

Quickest round-trip

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Fri 8/21

12:12 pm-10:55 am

1 stop15h 43m

London Heathrow

Fri 9/4

12:55 pm-9:22 pm

1 stop15h 27m

$943

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Tue 5/12

5:26 pm-8:40 pm

2 stops20h 14m

London Heathrow

Tue 5/19

7:25 am-9:55 am

2 stops33h 30m

$946

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Tue 4/28

2:30 pm-9:40 am

1 stop12h 10m

London Heathrow

Tue 5/5

7:30 am-9:03 pm

2 stops20h 33m

$947

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Tue 4/28

5:20 pm-8:40 pm

2 stops20h 20m

London Heathrow

Tue 5/5

7:30 am-9:03 pm

2 stops20h 33m

$951

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Thu 9/17

2:20 pm-12:50 pm

1 stop15h 30m

London Heathrow

Fri 9/25

8:55 am-9:22 pm

1 stop19h 27m

$953

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Tue 5/12

7:48 am-10:50 am

1 stop20h 02m

London Heathrow

Tue 5/19

2:25 pm-1:13 pm

1 stop29h 48m

$954

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Fri 8/21

12:12 pm-12:10 pm

1 stop16h 58m

London Heathrow

Fri 9/4

9:15 am-9:22 pm

2 stops19h 07m

$957

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Thu 9/17

12:12 pm-9:05 am

1 stop13h 53m

London Heathrow

Fri 9/25

10:05 am-9:22 pm

2 stops18h 17m

$959

Flights are sorted by cheapest round-trip 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

Prices

Airlines

Can stopping save me money on Idaho Falls to United Kingdom flights?

You could potentially save up to 4% on your flight if you consider stops on a Idaho Falls to United Kingdom flight.

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 05m
Direct flights	None

The fastest flight from Idaho Falls to United Kingdom takes 12h 05m

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

Finding the right flight to United Kingdom from Idaho Falls is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to United Kingdom quick and easy, saving you time and money.

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

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

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

momondo helps you find the best flight between Idaho Falls and United Kingdom by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Price alerts on flights to United Kingdom from Idaho Falls are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.