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Cheap flights from London Heathrow Airport to Idaho Falls from $680

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 9/8. 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
1 adult, Economy, 0 bags

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Find the cheapest flights from London Heathrow Airport to Idaho Falls

Cheap round-trip flights

Enter your travel dates to find the best prices.
Virgin Atlantic Logo
10:55 am - 10:40 pm
LHR
-
IDA
18h 45m
1 stop
Virgin Atlantic Logo
1:09 pm - 2:00 pm
IDA
-
LHR
17h 51m
2 stops
$1,064Virgin Atlantic
Thu, Apr 16 - Thu, Apr 23
Multiple Airlines Logo
12:55 pm - 9:19 pm
LHR
-
IDA
15h 24m
1 stop
Multiple Airlines Logo
1:46 pm - 10:55 am
IDA
-
LHR
14h 09m
1 stop
$1,079Multiple Airlines
Tue, Sep 1 - Fri, Sep 25
KLM Logo
6:30 am - 10:14 pm
LHR
-
IDA
22h 44m
2 stops
KLM Logo
6:50 pm - 10:00 am
IDA
-
LHR
32h 10m
1 stop
$1,083KLM
Tue, Sep 1 - Fri, Sep 25
Delta Logo
6:30 am - 10:40 pm
LHR
-
IDA
23h 10m
2 stops
Delta Logo
5:47 am - 1:05 pm
IDA
-
LHR
24h 18m
2 stops
$1,085Delta
Thu, Apr 16 - Thu, Apr 23
American Airlines Logo
12:15 pm - 1:38 pm
LHR
-
IDA
32h 23m
1 stop
American Airlines Logo
7:00 am - 10:15 am
IDA
-
LHR
20h 15m
2 stops
$1,093American Airlines
Mon, Jun 8 - Wed, Jun 17
Multiple Airlines Logo
12:55 pm - 9:22 pm
LHR
-
IDA
15h 27m
1 stop
Multiple Airlines Logo
12:12 pm - 10:55 am
IDA
-
LHR
15h 43m
1 stop
$1,098Multiple Airlines
Tue, Sep 1 - Fri, Sep 25
KLM Logo
8:55 pm - 6:14 pm
LHR
-
IDA
28h 19m
2 stops
KLM Logo
6:50 pm - 10:00 am
IDA
-
LHR
32h 10m
1 stop
$1,100KLM
Tue, Sep 1 - Fri, Sep 25
KLM Logo
6:30 am - 10:14 pm
LHR
-
IDA
22h 44m
2 stops
KLM Logo
6:50 pm - 10:00 am
IDA
-
LHR
32h 10m
1 stop
$1,102KLM
Tue, Sep 1 - Fri, Sep 25
Delta Logo
6:15 am - 6:14 pm
LHR
-
IDA
18h 59m
2 stops
Delta Logo
6:50 pm - 8:10 pm
IDA
-
LHR
18h 20m
2 stops
$1,107Delta
Tue, Sep 1 - Fri, Sep 25
Multiple Airlines Logo
12:55 pm - 9:19 pm
LHR
-
IDA
15h 24m
1 stop
Multiple Airlines Logo
1:46 pm - 10:55 am
IDA
-
LHR
14h 09m
1 stop
$1,109Multiple Airlines
Tue, Sep 1 - Fri, Sep 25

Virgin Atlantic flights from London Heathrow Airport to Idaho Falls

Our best Virgin Atlantic deals on London Heathrow Airport to Idaho Falls flight tickets
Virgin Atlantic
Apr 16
LHR10:55 amLondon Heathrow
18h 45m
1 stop
IDA10:40 pmIdaho Falls Fanning Field
Apr 23
IDA1:09 pmIdaho Falls Fanning Field
17h 51m
2 stops
LHR2:00 pmLondon Heathrow
$1,064
Virgin Atlantic
Jun 7
LHR9:55 amLondon Heathrow
19h 19m
2 stops
IDA10:14 pmIdaho Falls Fanning Field
Jun 14
IDA3:04 pmIdaho Falls Fanning Field
17h 31m
2 stops
LHR3:35 pmLondon Heathrow
$1,294

Delta flights from London Heathrow Airport to Idaho Falls

Our best Delta deals on London Heathrow Airport to Idaho Falls flight tickets
Delta
Apr 16
LHR6:30 amLondon Heathrow
23h 10m
2 stops
IDA10:40 pmIdaho Falls Fanning Field
Apr 23
IDA5:47 amIdaho Falls Fanning Field
24h 18m
2 stops
LHR1:05 pmLondon Heathrow
$1,085
Delta
Sep 1
LHR6:15 amLondon Heathrow
18h 59m
2 stops
IDA6:14 pmIdaho Falls Fanning Field
Sep 25
IDA6:50 pmIdaho Falls Fanning Field
18h 20m
2 stops
LHR8:10 pmLondon Heathrow
$1,113
Delta
Sep 1
LHR6:15 amLondon Heathrow
18h 59m
2 stops
IDA6:14 pmIdaho Falls Fanning Field
Sep 25
IDA1:10 pmIdaho Falls Fanning Field
18h 25m
2 stops
LHR2:35 pmLondon Heathrow
$1,118

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 March 18, 2026.
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

Cheapest round-trip

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Thu 4/16

10:55 am-10:40 pm

1 stop18h 45m

Idaho Falls Fanning Field

Thu 4/23

1:09 pm-2:00 pm

2 stops17h 51m

$1,064
Quickest round-trip

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Tue 9/1

12:55 pm-9:19 pm

1 stop15h 24m

Idaho Falls Fanning Field

Fri 9/25

1:46 pm-10:55 am

1 stop14h 09m

$1,079

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Tue 9/1

6:30 am-10:14 pm

2 stops22h 44m

Idaho Falls Fanning Field

Fri 9/25

6:50 pm-10:00 am

1 stop32h 10m

$1,083

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Thu 4/16

6:30 am-10:40 pm

2 stops23h 10m

Idaho Falls Fanning Field

Thu 4/23

5:47 am-1:05 pm

2 stops24h 18m

$1,085

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Mon 6/8

12:15 pm-1:38 pm

1 stop32h 23m

Idaho Falls Fanning Field

Wed 6/17

7:00 am-10:15 am

2 stops20h 15m

$1,093

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Tue 9/1

12:55 pm-9:22 pm

1 stop15h 27m

Idaho Falls Fanning Field

Fri 9/25

12:12 pm-10:55 am

1 stop15h 43m

$1,098

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Tue 9/1

8:55 pm-6:14 pm

2 stops28h 19m

Idaho Falls Fanning Field

Fri 9/25

6:50 pm-10:00 am

1 stop32h 10m

$1,100

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Tue 9/1

6:30 am-10:14 pm

2 stops22h 44m

Idaho Falls Fanning Field

Fri 9/25

6:50 pm-10:00 am

1 stop32h 10m

$1,102

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Tue 9/1

6:15 am-6:14 pm

2 stops18h 59m

Idaho Falls Fanning Field

Fri 9/25

6:50 pm-8:10 pm

2 stops18h 20m

$1,107

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Tue 9/1

12:55 pm-9:19 pm

1 stop15h 24m

Idaho Falls Fanning Field

Fri 9/25

1:46 pm-10:55 am

1 stop14h 09m

$1,109

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

Can stopping save me money on London Heathrow Airport to Idaho Falls flights?

You could potentially save up to 47% on your flight if you consider stops on a London Heathrow Airport to Idaho Falls flight.

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

Fastest flight time

18h 45m

Direct flights

None
The fastest flight from London Heathrow Airport to Idaho Falls takes 18h 45m
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.
Search flight deals

  • 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 18h 45m.

  • 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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