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.

$868 Cheap Flights from Idaho Falls to the United Kingdom in 2026

1 adult

0 bags

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Find the cheapest flights from Idaho Falls to the United Kingdom

Round-trip

Cheap round-trip flights

Enter your travel dates to find the best prices.

4:14 pm - 1:00 pm

IDA

LHR

13h 46m

1 stop

8:15 am - 9:20 pm

LHR

IDA

20h 05m

2 stops

$868Multiple Airlines

Tue, Aug 18 - Tue, Aug 25

2:20 pm - 10:55 am

IDA

LHR

13h 35m

1 stop

8:15 am - 9:20 pm

LHR

IDA

20h 05m

2 stops

$870American Airlines

Tue, Aug 18 - Tue, Aug 25

1:10 pm - 10:00 am

IDA

LHR

14h 50m

1 stop

8:25 pm - 6:14 pm

LHR

IDA

28h 49m

2 stops

$876KLM

Wed, Oct 28 - Wed, Nov 4

1:10 pm - 10:30 am

IDA

LHR

15h 20m

2 stops

5:50 pm - 6:14 pm

LHR

IDA

31h 24m

2 stops

$880KLM

Wed, Oct 28 - Wed, Nov 4

10:35 am - 12:35 pm

IDA

LHR

19h 00m

1 stop

7:25 am - 9:53 am

LHR

IDA

33h 28m

2 stops

$881United Airlines

Wed, Oct 7 - Tue, Oct 13

5:53 pm - 12:35 pm

IDA

LHR

11h 42m

1 stop

6:55 am - 9:53 am

LHR

IDA

33h 58m

2 stops

$882United Airlines

Wed, Oct 7 - Tue, Oct 13

10:35 am - 9:40 am

IDA

LHR

16h 05m

1 stop

7:25 am - 9:53 am

LHR

IDA

33h 28m

2 stops

$883United Airlines

Wed, Oct 7 - Tue, Oct 13

1:46 pm - 12:20 pm

IDA

LHR

16h 34m

1 stop

2:45 pm - 11:42 pm

LHR

IDA

15h 57m

1 stop

$887Alaska Airlines

Wed, Oct 28 - Wed, Nov 4

1:43 pm - 11:15 am

IDA

LHR

14h 32m

1 stop

12:55 pm - 9:22 pm

LHR

IDA

15h 27m

1 stop

$904Multiple Airlines

Wed, Oct 7 - Tue, Oct 13

1:43 pm - 11:15 am

IDA

LHR

14h 32m

1 stop

12:55 pm - 9:22 pm

LHR

IDA

15h 27m

1 stop

$905Multiple Airlines

Wed, Oct 7 - Tue, Oct 13

Delta flights from Idaho Falls to United Kingdom

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

Delta

Oct 7

IDA6:00 amIdaho Falls Fanning Field

24h 05m

2 stops

LHR1:05 pmLondon Heathrow

Oct 13

LHR6:30 amLondon Heathrow

22h 49m

2 stops

IDA10:19 pmIdaho Falls Fanning Field

$949

Delta

Oct 7

IDA6:00 amIdaho Falls Fanning Field

18h 10m

2 stops

LHR7:10 amLondon Heathrow

Oct 13

LHR6:30 amLondon Heathrow

22h 49m

2 stops

IDA10:19 pmIdaho Falls Fanning Field

$950

Delta

Oct 7

IDA6:00 amIdaho Falls Fanning Field

24h 05m

2 stops

LHR1:05 pmLondon Heathrow

Oct 13

LHR6:30 amLondon Heathrow

22h 49m

2 stops

IDA10:19 pmIdaho Falls Fanning Field

$951

United Airlines flights from Idaho Falls to United Kingdom

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

United Airlines

Oct 7

IDA10:35 amIdaho Falls Fanning Field

19h 00m

1 stop

LHR12:35 pmLondon Heathrow

Oct 13

LHR7:25 amLondon Heathrow

33h 28m

2 stops

IDA9:53 amIdaho Falls Fanning Field

$881

United Airlines

Oct 7

IDA5:53 pmIdaho Falls Fanning Field

11h 42m

1 stop

LHR12:35 pmLondon Heathrow

Oct 13

LHR6:55 amLondon Heathrow

33h 58m

2 stops

IDA9:53 amIdaho Falls Fanning Field

$882

United Airlines

Oct 7

IDA10:35 amIdaho Falls Fanning Field

16h 05m

1 stop

LHR9:40 amLondon Heathrow

Oct 13

LHR7:25 amLondon Heathrow

33h 28m

2 stops

IDA9:53 amIdaho Falls Fanning Field

$883

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 8/18

4:14 pm-1:00 pm

1 stop13h 46m

London Heathrow

Tue 8/25

8:15 am-9:20 pm

2 stops20h 05m

$868

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Tue 8/18

2:20 pm-10:55 am

1 stop13h 35m

London Heathrow

Tue 8/25

8:15 am-9:20 pm

2 stops20h 05m

$870

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Wed 10/28

1:10 pm-10:00 am

1 stop14h 50m

London Heathrow

Wed 11/4

8:25 pm-6:14 pm

2 stops28h 49m

$876

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Wed 10/28

1:10 pm-10:30 am

2 stops15h 20m

London Heathrow

Wed 11/4

5:50 pm-6:14 pm

2 stops31h 24m

$880

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Wed 10/7

10:35 am-12:35 pm

1 stop19h 00m

London Heathrow

Tue 10/13

7:25 am-9:53 am

2 stops33h 28m

$881

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Wed 10/7

5:53 pm-12:35 pm

1 stop11h 42m

London Heathrow

Tue 10/13

6:55 am-9:53 am

2 stops33h 58m

$882

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Wed 10/7

10:35 am-9:40 am

1 stop16h 05m

London Heathrow

Tue 10/13

7:25 am-9:53 am

2 stops33h 28m

$883

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Wed 10/28

1:46 pm-12:20 pm

1 stop16h 34m

London Heathrow

Wed 11/4

2:45 pm-11:42 pm

1 stop15h 57m

$887

Quickest round-trip

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Wed 10/7

1:43 pm-11:15 am

1 stop14h 32m

London Heathrow

Tue 10/13

12:55 pm-9:22 pm

1 stop15h 27m

$904

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Wed 10/7

1:43 pm-11:15 am

1 stop14h 32m

London Heathrow

Tue 10/13

12:55 pm-9:22 pm

1 stop15h 27m

$905

Flights are sorted by cheapest round-trip flights first.

Sorted 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

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

You could potentially save up to 2% 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 10m
Direct flights	None

The fastest flight from Idaho Falls to United Kingdom takes 12h 10m

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.