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

Delta, Brussels Airlines, and United Airlines are the most popular carriers 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 many operators does momondo search for flights from Idaho Falls Fanning Field Airport to United Kingdom?

There is 1 operator available for flights from Idaho Falls Fanning Field Airport to United Kingdom as of September 2026.

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.

$606 Cheap Flights from Idaho Falls to the United Kingdom in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Idaho Falls to the United Kingdom

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

9:08 am - 12:20 pmIDA Idaho Falls Fanning Field-LHR London Heathrow

20h 12m1 stop Seattle/Tacoma Intl

2:45 pm - 10:53 pmLHR London Heathrow-IDA Idaho Falls Fanning Field

15h 08m1 stop Seattle/Tacoma Intl

$856Alaska Airlines

Tue, Feb 2 - Tue, Feb 9

10:45 am - 9:40 amIDA Idaho Falls Fanning Field-LHR London Heathrow

15h 55m1 stop Denver Intl

6:35 am - 9:08 pmLHR London Heathrow-IDA Idaho Falls Fanning Field

21h 33m2 stops Munich Franz Josef Strauss Denver Intl

$875United Airlines

Wed, Feb 3 - Tue, Feb 16

6:00 am - 10:00 amIDA Idaho Falls Fanning Field-LHR London Heathrow

21h 00m1 stop Salt Lake City

5:50 pm - 6:14 pmLHR London Heathrow-IDA Idaho Falls Fanning Field

31h 24m2 stops Amsterdam Schiphol Salt Lake City

$875KLM

Tue, Feb 2 - Mon, Feb 15

6:00 am - 10:00 amIDA Idaho Falls Fanning Field-LHR London Heathrow

21h 00m1 stop Salt Lake City

5:05 pm - 6:14 pmLHR London Heathrow-IDA Idaho Falls Fanning Field

32h 09m2 stops Amsterdam Schiphol Salt Lake City

$875KLM

Tue, Feb 2 - Tue, Feb 16

2:35 pm - 9:40 amIDA Idaho Falls Fanning Field-LHR London Heathrow

12h 05m1 stop Denver Intl

6:35 am - 9:08 pmLHR London Heathrow-IDA Idaho Falls Fanning Field

21h 33m2 stops Munich Franz Josef Strauss Denver Intl

$875United Airlines

Mon, Feb 1 - Tue, Feb 16

10:45 am - 9:40 amIDA Idaho Falls Fanning Field-LHR London Heathrow

15h 55m1 stop Denver Intl

6:35 am - 9:08 pmLHR London Heathrow-IDA Idaho Falls Fanning Field

21h 33m2 stops Munich Franz Josef Strauss Denver Intl

$875United Airlines

Sun, Jan 31 - Tue, Feb 16

1:56 pm - 12:20 pmIDA Idaho Falls Fanning Field-LHR London Heathrow

15h 24m1 stop Seattle/Tacoma Intl

2:45 pm - 10:39 pmLHR London Heathrow-IDA Idaho Falls Fanning Field

14h 54m1 stop Seattle/Tacoma Intl

$879Alaska Airlines

Tue, Feb 2 - Tue, Feb 16

1:10 pm - 11:40 amIDA Idaho Falls Fanning Field-LHR London Heathrow

15h 30m2 stops Salt Lake City Atlanta Hartsfield-Jackson

5:05 pm - 6:14 pmLHR London Heathrow-IDA Idaho Falls Fanning Field

32h 09m2 stops Amsterdam Schiphol Salt Lake City

$879KLM

Mon, Feb 1 - Tue, Feb 16

6:45 pm - 10:00 amIDA Idaho Falls Fanning Field-LHR London Heathrow

32h 15m1 stop Salt Lake City

5:35 pm - 6:14 pmLHR London Heathrow-IDA Idaho Falls Fanning Field

31h 39m2 stops Paris Charles de Gaulle Salt Lake City

$894Delta

Mon, Feb 1 - Mon, Feb 15

1:10 pm - 8:10 pmIDA Idaho Falls Fanning Field-LHR London Heathrow

24h 00m2 stops Salt Lake City New York John F Kennedy Intl

5:35 pm - 6:14 pmLHR London Heathrow-IDA Idaho Falls Fanning Field

31h 39m2 stops Paris Charles de Gaulle Salt Lake City

$899Delta

Sat, Jan 30 - Mon, Feb 15

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize 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

Alaska Airlines flights from Idaho Falls to United Kingdom

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

Alaska Airlines

Feb 2

IDA9:08 amIdaho Falls Fanning Field

20h 12m

1 stop

LHR12:20 pmLondon Heathrow

Feb 9

LHR2:45 pmLondon Heathrow

15h 08m

1 stop

IDA10:53 pmIdaho Falls Fanning Field

$856

Alaska Airlines

Feb 1

IDA1:56 pmIdaho Falls Fanning Field

15h 24m

1 stop

LHR12:20 pmLondon Heathrow

Feb 14

LHR2:45 pmLondon Heathrow

14h 54m

1 stop

IDA10:39 pmIdaho Falls Fanning Field

$929

Alaska Airlines

Dec 7

IDA1:54 pmIdaho Falls Fanning Field

15h 26m

1 stop

LHR12:20 pmLondon Heathrow

Dec 9

LHR2:45 pmLondon Heathrow

31h 22m

1 stop

IDA3:07 pmIdaho Falls Fanning Field

$1,321

KLM flights from Idaho Falls to United Kingdom

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

KLM

Feb 2

IDA6:00 amIdaho Falls Fanning Field

21h 00m

1 stop

LHR10:00 amLondon Heathrow

Feb 15

LHR5:50 pmLondon Heathrow

31h 24m

2 stops

IDA6:14 pmIdaho Falls Fanning Field

$875

KLM

Feb 1

IDA1:10 pmIdaho Falls Fanning Field

15h 30m

2 stops

LHR11:40 amLondon Heathrow

Feb 15

LHR5:50 pmLondon Heathrow

31h 24m

2 stops

IDA6:14 pmIdaho Falls Fanning Field

$879

KLM

Jan 31

IDA1:10 pmIdaho Falls Fanning Field

14h 35m

2 stops

LHR10:45 amLondon Heathrow

Feb 15

LHR5:50 pmLondon Heathrow

31h 24m

2 stops

IDA6:14 pmIdaho 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 Idaho Falls Fanning Field - LHR London Heathrow

IDALHR

Idaho Falls Fanning Field

Tue 2/2

9:08 am-12:20 pm

1 stop20h 12m

London Heathrow

Tue 2/9

2:45 pm-10:53 pm

1 stop15h 08m

$856

Idaho FallsLondon

IDA Idaho Falls Fanning Field - LHR London Heathrow

IDALHR

Idaho Falls Fanning Field

Wed 2/3

10:45 am-9:40 am

1 stop15h 55m

London Heathrow

Tue 2/16

6:35 am-9:08 pm

2 stops21h 33m

$875

Idaho FallsLondon

IDA Idaho Falls Fanning Field - LHR London Heathrow

IDALHR

Idaho Falls Fanning Field

Tue 2/2

6:00 am-10:00 am

1 stop21h 00m

London Heathrow

Mon 2/15

5:50 pm-6:14 pm

2 stops31h 24m

$875

Idaho FallsLondon

IDA Idaho Falls Fanning Field - LHR London Heathrow

IDALHR

Idaho Falls Fanning Field

Tue 2/2

6:00 am-10:00 am

1 stop21h 00m

London Heathrow

Tue 2/16

5:05 pm-6:14 pm

2 stops32h 09m

$875

Idaho FallsLondon

IDA Idaho Falls Fanning Field - LHR London Heathrow

IDALHR

Idaho Falls Fanning Field

Mon 2/1

2:35 pm-9:40 am

1 stop12h 05m

London Heathrow

Tue 2/16

6:35 am-9:08 pm

2 stops21h 33m

$875

Idaho FallsLondon

IDA Idaho Falls Fanning Field - LHR London Heathrow

IDALHR

Idaho Falls Fanning Field

Sun 1/31

10:45 am-9:40 am

1 stop15h 55m

London Heathrow

Tue 2/16

6:35 am-9:08 pm

2 stops21h 33m

$875

Quickest round-trip

Idaho FallsLondon

IDA Idaho Falls Fanning Field - LHR London Heathrow

IDALHR

Idaho Falls Fanning Field

Tue 2/2

1:56 pm-12:20 pm

1 stop15h 24m

London Heathrow

Tue 2/16

2:45 pm-10:39 pm

1 stop14h 54m

$879

Idaho FallsLondon

IDA Idaho Falls Fanning Field - LHR London Heathrow

IDALHR

Idaho Falls Fanning Field

Mon 2/1

1:10 pm-11:40 am

2 stops15h 30m

London Heathrow

Tue 2/16

5:05 pm-6:14 pm

2 stops32h 09m

$879

Idaho FallsLondon

IDA Idaho Falls Fanning Field - LHR London Heathrow

IDALHR

Idaho Falls Fanning Field

Mon 2/1

6:45 pm-10:00 am

1 stop32h 15m

London Heathrow

Mon 2/15

5:35 pm-6:14 pm

2 stops31h 39m

$894

Idaho FallsLondon

IDA Idaho Falls Fanning Field - LHR London Heathrow

IDALHR

Idaho Falls Fanning Field

Sat 1/30

1:10 pm-8:10 pm

2 stops24h 00m

London Heathrow

Mon 2/15

5:35 pm-6:14 pm

2 stops31h 39m

$899

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 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 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

Best Price Found	$606
Fastest flight time	12h 12m
Direct flights	None

The best one-way flight to United Kingdom from Idaho Falls in the past 72 hours is $606. The best round-trip flight deal from Idaho Falls to United Kingdom found on momondo in the last 72 hours is $856.

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

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 many operators does momondo search for flights from Idaho Falls Fanning Field Airport to United Kingdom?
There is 1 operator available for flights from Idaho Falls Fanning Field Airport to United Kingdom as of September 2026.
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.

Best airlines flying from Idaho Falls to United Kingdom

Compare and see reviews for airlines that fly from Idaho Falls to United Kingdom with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $963	Free Cancellation	Rating 7.8 8,611 reviews		Search Delta flights

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.