Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Idaho Falls to London from $555

1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Idaho Falls to London

Cheap round-trip flights

Enter your travel dates to find the best prices.
Alaska Airlines Logo
4:03 pm - 3:05 pmIDA  Idaho Falls Fanning Field-LHR London Heathrow
16h 02m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
5:00 pm - 3:29 pmLHR  London Heathrow-IDA Idaho Falls Fanning Field
29h 29m1 stop Seattle/Tacoma Intl
$905Alaska Airlines
Wed, Apr 14 - Wed, Apr 21
Virgin Atlantic Logo
1:10 pm - 10:00 amIDA  Idaho Falls Fanning Field-LHR London Heathrow
13h 50m1 stop Salt Lake City
Virgin Atlantic Logo
8:40 am - 10:19 pmLHR  London Heathrow-IDA Idaho Falls Fanning Field
20h 39m2 stops Amsterdam Schiphol Salt Lake City
$920Virgin Atlantic
Wed, Apr 14 - Wed, Apr 21
KLM Logo
1:10 pm - 1:05 pmIDA  Idaho Falls Fanning Field-LHR London Heathrow
16h 55m2 stops Salt Lake City Minneapolis St Paul
KLM Logo
6:30 am - 6:14 pmLHR  London Heathrow-IDA Idaho Falls Fanning Field
18h 44m2 stops Amsterdam Schiphol Salt Lake City
$924KLM
Wed, Apr 14 - Wed, Apr 21
Alaska Airlines Logo
1:56 pm - 12:20 pmIDA  Idaho Falls Fanning Field-LHR London Heathrow
15h 24m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
2:45 pm - 10:52 pmLHR  London Heathrow-IDA Idaho Falls Fanning Field
15h 07m1 stop Seattle/Tacoma Intl
$986Alaska Airlines
Mon, Jan 11 - Wed, Jan 27
KLM Logo
1:10 pm - 5:00 pmIDA  Idaho Falls Fanning Field-LHR London Heathrow
20h 50m2 stops Salt Lake City Amsterdam Schiphol
KLM Logo
5:50 pm - 6:19 pmLHR  London Heathrow-IDA Idaho Falls Fanning Field
31h 29m2 stops Amsterdam Schiphol Salt Lake City
$998KLM
Mon, Jan 11 - Wed, Jan 27
United Airlines Logo
2:40 pm - 9:40 amIDA  Idaho Falls Fanning Field-LHR London Heathrow
12h 00m1 stop Denver Intl
United Airlines Logo
3:00 pm - 1:37 pmLHR  London Heathrow-IDA Idaho Falls Fanning Field
29h 37m2 stops Toronto Pearson Intl Denver Intl
$1,011United Airlines
Tue, Dec 1 - Sun, Dec 6
United Airlines Logo
2:40 pm - 9:40 amIDA  Idaho Falls Fanning Field-LHR London Heathrow
12h 00m1 stop Denver Intl
United Airlines Logo
3:00 pm - 1:37 pmLHR  London Heathrow-IDA Idaho Falls Fanning Field
29h 37m2 stops Toronto Pearson Intl Denver Intl
$1,012United Airlines
Tue, Dec 1 - Sun, Dec 6
United Airlines Logo
2:40 pm - 9:40 amIDA  Idaho Falls Fanning Field-LHR London Heathrow
12h 00m1 stop Denver Intl
United Airlines Logo
3:00 pm - 1:37 pmLHR  London Heathrow-IDA Idaho Falls Fanning Field
29h 37m2 stops Toronto Pearson Intl Denver Intl
$1,013United Airlines
Tue, Dec 1 - Sun, Dec 6
Delta Logo
1:09 pm - 10:40 amIDA  Idaho Falls Fanning Field-LHR London Heathrow
38h 31m2 stops Salt Lake City Seattle/Tacoma Intl
Delta Logo
3:35 pm - 12:28 pmLHR  London Heathrow-IDA Idaho Falls Fanning Field
27h 53m2 stops Miami Salt Lake City
$1,278Delta
Wed, Dec 23 - Tue, Dec 29
Delta Logo
6:53 pm - 10:40 amIDA  Idaho Falls Fanning Field-LHR London Heathrow
32h 47m2 stops Salt Lake City Seattle/Tacoma Intl
Delta Logo
3:35 pm - 12:28 pmLHR  London Heathrow-IDA Idaho Falls Fanning Field
27h 53m2 stops Miami Salt Lake City
$1,278Delta
Wed, Dec 23 - Wed, Dec 30

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Alaska Airlines flights from Idaho Falls to London Heathrow Airport

Our best Alaska Airlines deals on Idaho Falls to London Heathrow Airport flight tickets
Alaska Airlines
Apr 14
IDA4:03 pmIdaho Falls Fanning Field
16h 02m
1 stop
LHR3:05 pmLondon Heathrow
Apr 21
LHR5:00 pmLondon Heathrow
29h 29m
1 stop
IDA3:29 pmIdaho Falls Fanning Field
$905
Alaska Airlines
Jan 11
IDA1:56 pmIdaho Falls Fanning Field
15h 24m
1 stop
LHR12:20 pmLondon Heathrow
Jan 27
LHR2:45 pmLondon Heathrow
15h 07m
1 stop
IDA10:52 pmIdaho Falls Fanning Field
$986
Alaska Airlines
Jan 25
IDA1:56 pmIdaho Falls Fanning Field
15h 24m
1 stop
LHR12:20 pmLondon Heathrow
Jan 28
LHR2:45 pmLondon Heathrow
15h 07m
1 stop
IDA10:52 pmIdaho Falls Fanning Field
$1,386

KLM flights from Idaho Falls to London Heathrow Airport

Our best KLM deals on Idaho Falls to London Heathrow Airport flight tickets
KLM
Apr 14
IDA1:10 pmIdaho Falls Fanning Field
16h 55m
2 stops
LHR1:05 pmLondon Heathrow
Apr 21
LHR6:30 amLondon Heathrow
18h 44m
2 stops
IDA6:14 pmIdaho Falls Fanning Field
$924
KLM
Jan 11
IDA1:10 pmIdaho Falls Fanning Field
20h 50m
2 stops
LHR5:00 pmLondon Heathrow
Jan 27
LHR5:50 pmLondon Heathrow
31h 29m
2 stops
IDA6:19 pmIdaho Falls Fanning Field
$998

momondo Fare Finder

 
Use the filters below to find and compare flights from Idaho Falls to London Heathrow Airport 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

Wed 4/14

4:03 pm-3:05 pm

1 stop16h 02m

London Heathrow

Wed 4/21

5:00 pm-3:29 pm

1 stop29h 29m

$905

Idaho FallsLondon

IDA Idaho Falls Fanning Field - LHR London Heathrow

IDALHR

Idaho Falls Fanning Field

Wed 4/14

1:10 pm-10:00 am

1 stop13h 50m

London Heathrow

Wed 4/21

8:40 am-10:19 pm

2 stops20h 39m

$920

Idaho FallsLondon

IDA Idaho Falls Fanning Field - LHR London Heathrow

IDALHR

Idaho Falls Fanning Field

Wed 4/14

1:10 pm-1:05 pm

2 stops16h 55m

London Heathrow

Wed 4/21

6:30 am-6:14 pm

2 stops18h 44m

$924
Quickest round-trip

Idaho FallsLondon

IDA Idaho Falls Fanning Field - LHR London Heathrow

IDALHR

Idaho Falls Fanning Field

Mon 1/11

1:56 pm-12:20 pm

1 stop15h 24m

London Heathrow

Wed 1/27

2:45 pm-10:52 pm

1 stop15h 07m

$986

Idaho FallsLondon

IDA Idaho Falls Fanning Field - LHR London Heathrow

IDALHR

Idaho Falls Fanning Field

Mon 1/11

1:10 pm-5:00 pm

2 stops20h 50m

London Heathrow

Wed 1/27

5:50 pm-6:19 pm

2 stops31h 29m

$998

Idaho FallsLondon

IDA Idaho Falls Fanning Field - LHR London Heathrow

IDALHR

Idaho Falls Fanning Field

Tue 12/1

2:40 pm-9:40 am

1 stop12h 00m

London Heathrow

Sun 12/6

3:00 pm-1:37 pm

2 stops29h 37m

$1,011

Idaho FallsLondon

IDA Idaho Falls Fanning Field - LHR London Heathrow

IDALHR

Idaho Falls Fanning Field

Tue 12/1

2:40 pm-9:40 am

1 stop12h 00m

London Heathrow

Sun 12/6

3:00 pm-1:37 pm

2 stops29h 37m

$1,012

Idaho FallsLondon

IDA Idaho Falls Fanning Field - LHR London Heathrow

IDALHR

Idaho Falls Fanning Field

Tue 12/1

2:40 pm-9:40 am

1 stop12h 00m

London Heathrow

Sun 12/6

3:00 pm-1:37 pm

2 stops29h 37m

$1,013

Idaho FallsLondon

IDA Idaho Falls Fanning Field - LHR London Heathrow

IDALHR

Idaho Falls Fanning Field

Wed 12/23

1:09 pm-10:40 am

2 stops38h 31m

London Heathrow

Tue 12/29

3:35 pm-12:28 pm

2 stops27h 53m

$1,278

Idaho FallsLondon

IDA Idaho Falls Fanning Field - LHR London Heathrow

IDALHR

Idaho Falls Fanning Field

Wed 12/23

6:53 pm-10:40 am

2 stops32h 47m

London Heathrow

Wed 12/30

3:35 pm-12:28 pm

2 stops27h 53m

$1,278

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first
1
2

See travel insights to London from

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

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 London Heathrow Airport flights?

You could potentially save up to 21% on your flight if you consider stops on a Idaho Falls to London Heathrow Airport flight.

When to book flights from Idaho Falls to London Heathrow Airport

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

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

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

Best Price Found

$555

Fastest flight time

12h 00m

Direct flights

None
The best one-way flight to London Heathrow Airport from Idaho Falls in the past 72 hours is $555. The best round-trip flight deal from Idaho Falls to London Heathrow Airport found on momondo in the last 72 hours is $905.
The fastest flight from Idaho Falls to London Heathrow Airport takes 12h 00m
There are no direct flights from Idaho Falls to London Heathrow Airport. There are no popular flight routes from Idaho Falls to London Heathrow Airport.
Search flight deals

Frequently asked questions about flying from Idaho Falls to London Heathrow Airport

  • How far is Idaho Falls Fanning Field to London Heathrow by plane?

    The straight-line distance from Idaho Falls Fanning Field to London Heathrow is 4706.6 mi. Flights usually cover this in 12h 00m, depending on flying conditions and air traffic around both airports.

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

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

  • How many operators does momondo search for flights from Idaho Falls Fanning Field Airport to London Heathrow Airport?

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Idaho Falls Fanning Field Airport to London Heathrow Airport.

  • What documentation or ID do you need to fly to London Heathrow Airport?

    The necessary travel and health documents for your London Heathrow Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Idaho Falls to London Heathrow Airport?

Best airlines flying from Idaho Falls to London Heathrow Airport

Compare and see reviews for airlines that fly from Idaho Falls to London Heathrow Airport with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $963Free CancellationRating
7.8
8,696 reviews
Search Delta flights

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Hounslow
Gatwick
Croydon
Hayes
Milton Keynes
Luton
Stansted
Kingston upon Thames
Watford
Stratford-upon-Avon
Richmond
Dover
Wembley
Crawley
Worthing
Harrow
Brentford
Canterbury
Hook
Dunstable

Why use momondo?

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

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 Idaho Falls to London for you.

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

Flights from Idaho Falls to London with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo helps you find the best flight between Idaho Falls and London 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 London right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Idaho Falls to London flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your London Heathrow Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Thu 12/3
Thu 12/10
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to London

Popular cities in the United Kingdom

Flights to London Gatwick Airportfrom $492
Flights to London Stansted Airportfrom $450
Flights to London City Airportfrom $494
Flights to London Luton Airportfrom $473
Flights to Glasgow Intl Airportfrom $550
Flights to Belfast City Airportfrom $659
Flights to Belfast Intl Airportfrom $660
Flights to London Southend Airportfrom $611