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Cheap flights from London Heathrow Airport to Idaho Falls from $677

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London Heathrow Airport to Idaho Falls departing on 11/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from London Heathrow Airport to Idaho Falls

Cheap round-trip flights

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Virgin Atlantic Logo
12:20 pm - 10:19 pmLHR-IDA
16h 59m2 stops
Virgin Atlantic Logo
6:00 am - 8:10 pmIDA-LHR
31h 10m2 stops
$998Virgin Atlantic
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Thu, Nov 13 - Mon, Nov 17
KLM Logo
8:55 pm - 6:14 pmLHR-IDA
28h 19m2 stops
KLM Logo
6:50 pm - 9:50 amIDA-LHR
32h 00m1 stop
$1,002KLM
Find Deal
Tue, Apr 21 - Fri, May 1
Multiple Airlines Logo
4:30 pm - 1:28 pmLHR-IDA
27h 58m1 stop
Multiple Airlines Logo
1:58 pm - 10:00 amIDA-LHR
13h 02m1 stop
$1,013Multiple Airlines
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Thu, Nov 13 - Mon, Nov 17
Delta Logo
6:20 am - 6:17 pmLHR-IDA
18h 57m2 stops
Delta Logo
6:57 pm - 8:10 pmIDA-LHR
18h 13m2 stops
$1,014Delta
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Sat, Nov 22 - Wed, Nov 26
Multiple Airlines Logo
4:25 pm - 12:27 pmLHR-IDA
27h 02m1 stop
Multiple Airlines Logo
1:45 pm - 2:25 pmIDA-LHR
17h 40m1 stop
$1,016Multiple Airlines
Find Deal
Tue, Apr 21 - Fri, May 1
Delta Logo
6:20 am - 6:17 pmLHR-IDA
18h 57m2 stops
Delta Logo
6:00 am - 6:50 amIDA-LHR
17h 50m2 stops
$1,021Delta
Find Deal
Sat, Nov 22 - Wed, Nov 26
Delta Logo
6:20 am - 6:17 pmLHR-IDA
18h 57m2 stops
Delta Logo
6:00 am - 6:50 amIDA-LHR
17h 50m2 stops
$1,023Delta
Find Deal
Sat, Nov 22 - Wed, Nov 26
Delta Logo
10:45 am - 10:33 pmLHR-IDA
18h 48m1 stop
Delta Logo
1:15 pm - 10:00 amIDA-LHR
13h 45m1 stop
$1,033Delta
Find Deal
Sat, Nov 22 - Wed, Nov 26
Delta Logo
10:45 am - 10:33 pmLHR-IDA
18h 48m1 stop
Delta Logo
1:15 pm - 10:00 amIDA-LHR
13h 45m1 stop
$1,035Delta
Find Deal
Sat, Nov 22 - Wed, Nov 26
KLM Logo
10:45 am - 6:17 pmLHR-IDA
14h 32m1 stop
KLM Logo
1:15 pm - 10:00 amIDA-LHR
13h 45m1 stop
$1,079KLM
Find Deal
Sat, Nov 22 - Wed, Nov 26

KLM flights from London Heathrow Airport to Idaho Falls

Our best KLM deals on London Heathrow Airport to Idaho Falls flight tickets
KLM
Apr 21
LHR8:55 pmLondon Heathrow
28h 19m
2 stops
IDA6:14 pmIdaho Falls Fanning Field
May 1
IDA6:50 pmIdaho Falls Fanning Field
32h 00m
1 stop
LHR9:50 amLondon Heathrow
$1,002
Find similar
KLM
Nov 22
LHR10:45 amLondon Heathrow
14h 32m
1 stop
IDA6:17 pmIdaho Falls Fanning Field
Nov 26
IDA1:15 pmIdaho Falls Fanning Field
13h 45m
1 stop
LHR10:00 amLondon Heathrow
$1,079
Find similar

Delta flights from London Heathrow Airport to Idaho Falls

Our best Delta deals on London Heathrow Airport to Idaho Falls flight tickets
Delta
Nov 22
LHR6:20 amLondon Heathrow
18h 57m
2 stops
IDA6:17 pmIdaho Falls Fanning Field
Nov 26
IDA6:57 pmIdaho Falls Fanning Field
18h 13m
2 stops
LHR8:10 pmLondon Heathrow
$1,014
Find similar
Delta
Nov 22
LHR6:20 amLondon Heathrow
18h 57m
2 stops
IDA6:17 pmIdaho Falls Fanning Field
Nov 26
IDA6:00 amIdaho Falls Fanning Field
17h 50m
2 stops
LHR6:50 amLondon Heathrow
$1,021
Find similar
Delta
Nov 22
LHR6:20 amLondon Heathrow
18h 57m
2 stops
IDA6:17 pmIdaho Falls Fanning Field
Nov 26
IDA6:00 amIdaho Falls Fanning Field
17h 50m
2 stops
LHR6:50 amLondon Heathrow
$1,023
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from London Heathrow Airport to Idaho Falls that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated October 30, 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Idaho Falls that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Thu 11/13

12:20 pm-10:19 pm

2 stops16h 59m

Idaho Falls Fanning Field

Mon 11/17

6:00 am-8:10 pm

2 stops31h 10m

$998

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Tue 4/21

8:55 pm-6:14 pm

2 stops28h 19m

Idaho Falls Fanning Field

Fri 5/1

6:50 pm-9:50 am

1 stop32h 00m

$1,002

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Thu 11/13

4:30 pm-1:28 pm

1 stop27h 58m

Idaho Falls Fanning Field

Mon 11/17

1:58 pm-10:00 am

1 stop13h 02m

$1,013

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Sat 11/22

6:20 am-6:17 pm

2 stops18h 57m

Idaho Falls Fanning Field

Wed 11/26

6:57 pm-8:10 pm

2 stops18h 13m

$1,014

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Tue 4/21

4:25 pm-12:27 pm

1 stop27h 02m

Idaho Falls Fanning Field

Fri 5/1

1:45 pm-2:25 pm

1 stop17h 40m

$1,016

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Sat 11/22

6:20 am-6:17 pm

2 stops18h 57m

Idaho Falls Fanning Field

Wed 11/26

6:00 am-6:50 am

2 stops17h 50m

$1,021

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Sat 11/22

6:20 am-6:17 pm

2 stops18h 57m

Idaho Falls Fanning Field

Wed 11/26

6:00 am-6:50 am

2 stops17h 50m

$1,023

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Sat 11/22

10:45 am-10:33 pm

1 stop18h 48m

Idaho Falls Fanning Field

Wed 11/26

1:15 pm-10:00 am

1 stop13h 45m

$1,033

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Sat 11/22

10:45 am-10:33 pm

1 stop18h 48m

Idaho Falls Fanning Field

Wed 11/26

1:15 pm-10:00 am

1 stop13h 45m

$1,035

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Sat 11/22

10:45 am-6:17 pm

1 stop14h 32m

Idaho Falls Fanning Field

Wed 11/26

1:15 pm-10:00 am

1 stop13h 45m

$1,079

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
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See travel insights to Idaho Falls from

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

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 London Heathrow to Idaho Falls Fanning Field?

Delta is the most popular carrier operating from London Heathrow to Idaho Falls Fanning Field

When to book flights from London Heathrow Airport to Idaho Falls

Are you open to changing your travel dates? Check out the ideal times to fly from London Heathrow Airport to Idaho Falls according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap London Heathrow Airport to Idaho Falls (LHR to IDA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London Heathrow Airport to Idaho Falls

Direct flights

None
There are no direct flights from London Heathrow Airport to Idaho Falls. There are no popular flight routes from London Heathrow Airport to Idaho Falls.
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  • How far is London Heathrow to Idaho Falls Fanning Field by plane?

    Idaho Falls Fanning Field is 4706.6 mi away from London Heathrow. In terms of flight time, this usually takes a little over 13h 05m.

  • When did momondo last update prices for flights from London Heathrow Airport to Idaho Falls Fanning Field Airport?

    Prices for flights from London Heathrow Airport to Idaho Falls Fanning Field Airport are updated daily.

  • How old do you have to be to fly from London Heathrow Airport to Idaho Falls Fanning Field Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London Heathrow Airport to Idaho Falls Fanning Field Airport.

  • What documentation or ID do you need to fly to Idaho Falls Fanning Field Airport?

    The required travel and health documents for your Idaho Falls Fanning Field Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Idaho Falls Fanning Field Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Traveling to a place near Idaho Falls?

Book flights to Idaho Falls if you plan to visit one of these locations
Rexburg

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from London to Idaho Falls for you.

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

momondo does allow users to show only those flights to Idaho Falls from London which offer a flexible booking policy as well as other useful filters and features.

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

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 London to Idaho Falls.

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

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

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