What airlines fly to London?

United Airlines, Virgin Atlantic and Delta are the top three most popular airlines that fly to London from Idaho according to our data. United Airlines is the first choice among our users, with 38% of people opting to fly with this airline when traveling to London. Keep in mind that there are 3 different airlines that fly to London on a routine basis, so you have a few additional options to choose from.

How long does it take to fly to London?

If you’re flying from a popular airport in Idaho, such as Idaho Falls or Boise, and flying into London, then you can expect flight times to average 12h 03m and 12h 52m, respectively.

What is the cheapest airline that flies from Idaho to London?

Iberia, Delta, and Air Canada are the most popular carriers operating from Idaho to London

When did momondo last update prices for flights from Idaho to London?

Prices for flights from Idaho to London refresh daily.

How many operators does momondo search for flights from Idaho to London?

The number of operators available for flights from Idaho to London is 4 as of August 2026.

How old do you have to be to fly from Idaho to London?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Idaho to London.

What documentation or ID do you need to fly to London?

The travel and health documents required for your trip to London 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 London. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$324 Cheap Flights from Idaho to London in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Idaho to London

Round-trip

One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

12:30 pm - 7:55 amJAC Jackson Hole-LHR London Heathrow

12h 25m1 stop Chicago O'Hare Intl

6:50 am - 9:02 pmLHR London Heathrow-JAC Jackson Hole

21h 12m3 stops Brussels Bruxelles-National Chicago O'Hare Intl Denver Intl

$747United Airlines

Sun, Dec 6 - Tue, Dec 8

12:30 pm - 7:55 amJAC Jackson Hole-LHR London Heathrow

12h 25m1 stop Chicago O'Hare Intl

6:35 am - 9:02 pmLHR London Heathrow-JAC Jackson Hole

21h 27m2 stops Munich Franz Josef Strauss Denver Intl

$749United Airlines

Sun, Dec 6 - Tue, Dec 8

6:20 am - 7:10 amBOI Boise Air Term. Gowen Fld-LHR London Heathrow

17h 50m2 stops San Francisco Montreal Pierre Elliott Trudeau Intl

6:35 am - 5:55 pmLHR London Heathrow-BOI Boise Air Term. Gowen Fld

18h 20m2 stops Munich Franz Josef Strauss Denver Intl

$753Multiple Airlines

Sun, Dec 6 - Tue, Dec 8

12:30 pm - 7:55 amJAC Jackson Hole-LHR London Heathrow

12h 25m1 stop Chicago O'Hare Intl

6:35 am - 9:02 pmLHR London Heathrow-JAC Jackson Hole

21h 27m2 stops Munich Franz Josef Strauss Denver Intl

$800Lufthansa

Sun, Dec 6 - Tue, Dec 8

11:30 am - 10:45 amBOI Boise Air Term. Gowen Fld-LHR London Heathrow

16h 15m2 stops Salt Lake City Amsterdam Schiphol

10:45 am - 5:58 pmLHR London Heathrow-BOI Boise Air Term. Gowen Fld

14h 13m1 stop Salt Lake City

$815Delta

Sun, Dec 6 - Tue, Dec 8

11:30 am - 10:45 amBOI Boise Air Term. Gowen Fld-LHR London Heathrow

16h 15m2 stops Salt Lake City Amsterdam Schiphol

10:45 am - 12:04 amLHR London Heathrow-BOI Boise Air Term. Gowen Fld

20h 19m1 stop Salt Lake City

$816Delta

Sun, Dec 6 - Tue, Dec 8

11:30 am - 10:30 amBOI Boise Air Term. Gowen Fld-LHR London Heathrow

16h 00m2 stops Salt Lake City New York John F Kennedy Intl

9:55 am - 8:17 pmLHR London Heathrow-BOI Boise Air Term. Gowen Fld

17h 22m2 stops Amsterdam Schiphol Seattle/Tacoma Intl

$895Virgin Atlantic

Wed, Feb 10 - Wed, Apr 21

12:17 pm - 11:20 amBOI Boise Air Term. Gowen Fld-LHR London Heathrow

16h 03m1 stop Seattle/Tacoma Intl

12:25 pm - 11:59 pmLHR London Heathrow-BOI Boise Air Term. Gowen Fld

18h 34m1 stop Minneapolis St Paul

$924Virgin Atlantic

Mon, Sep 28 - Wed, Oct 14

12:49 pm - 10:55 amGEG Spokane-LHR London Heathrow

14h 06m1 stop Dallas/Fort Worth

11:50 am - 8:43 pmLHR London Heathrow-GEG Spokane

15h 53m1 stop Dallas/Fort Worth

$935American Airlines

Wed, Oct 14 - Wed, Oct 28

12:45 pm - 12:50 pmGEG Spokane-LHR London Heathrow

16h 05m1 stop Dallas/Fort Worth

10:05 am - 11:01 pmLHR London Heathrow-GEG Spokane

20h 56m1 stop Phoenix Sky Harbor Intl

$935American Airlines

Wed, Sep 23 - Wed, Oct 14

Cheap last minute flights

Enter your travel dates to find the best prices.

9:25 am - 2:00 pmGEG Spokane-LHR London Heathrow

20h 35m1 stop Seattle/Tacoma Intl

6:30 am - 4:09 pmLHR London Heathrow-GEG Spokane

17h 39m2 stops Amsterdam Schiphol Salt Lake City

$1,127Delta

Thu, Aug 20 - Sun, Aug 30

1:37 pm - 2:40 pmGEG Spokane-LHR London Heathrow

17h 03m2 stops Denver Intl Frankfurt am Main

6:30 am - 10:36 pmLHR London Heathrow-GEG Spokane

24h 06m2 stops Frankfurt am Main San Francisco

$1,130Lufthansa

Thu, Aug 20 - Sun, Aug 30

11:09 am - 3:35 pmGEG Spokane-LHR London Heathrow

20h 26m1 stop Seattle/Tacoma Intl

11:15 am - 9:30 pmLHR London Heathrow-GEG Spokane

18h 15m1 stop Atlanta Hartsfield-Jackson

$1,156KLM

Thu, Aug 20 - Sun, Aug 30

7:48 pm - 3:05 pmBOI Boise Air Term. Gowen Fld-LHR London Heathrow

12h 17m1 stop Seattle/Tacoma Intl

5:00 pm - 9:52 amLHR London Heathrow-BOI Boise Air Term. Gowen Fld

23h 52m1 stop Seattle/Tacoma Intl

$1,217Alaska Airlines

Thu, Aug 20 - Sat, Aug 22

6:30 am - 10:00 amBOI Boise Air Term. Gowen Fld-LHR London Heathrow

20h 30m2 stops Denver Intl Montreal Pierre Elliott Trudeau Intl

6:55 am - 11:06 amLHR London Heathrow-BOI Boise Air Term. Gowen Fld

35h 11m2 stops Munich Franz Josef Strauss San Francisco

$1,386United Airlines

Thu, Aug 20 - Sat, Aug 22

2:25 pm - 12:25 pmIDA Idaho Falls Fanning Field-LHR London Heathrow

15h 00m1 stop Denver Intl

6:55 am - 5:16 pmLHR London Heathrow-IDA Idaho Falls Fanning Field

17h 21m2 stops Munich Franz Josef Strauss Denver Intl

$1,444United Airlines

Thu, Aug 20 - Sat, Aug 22

10:35 am - 11:35 amIDA Idaho Falls Fanning Field-LHR London Heathrow

18h 00m2 stops Denver Intl Houston George Bush Intcntl

6:55 am - 5:16 pmLHR London Heathrow-IDA Idaho Falls Fanning Field

17h 21m2 stops Munich Franz Josef Strauss Denver Intl

$1,448United Airlines

Thu, Aug 20 - Sat, Aug 22

1:32 pm - 2:45 pmBOI Boise Air Term. Gowen Fld-LGW London Gatwick

18h 13m2 stops Portland Frankfurt am Main

10:20 am - 11:44 pmLGW London Gatwick-BOI Boise Air Term. Gowen Fld

20h 24m2 stops Frankfurt am Main Seattle/Tacoma Intl

$1,508Condor

Thu, Aug 20 - Sat, Aug 22

10:35 am - 9:25 amBOI Boise Air Term. Gowen Fld-LGW London Gatwick

15h 50m2 stops Seattle/Tacoma Intl Paris Charles de Gaulle

10:25 am - 10:30 pmLGW London Gatwick-BOI Boise Air Term. Gowen Fld

19h 05m2 stops Paris Charles de Gaulle Seattle/Tacoma Intl

$1,514Delta

Thu, Aug 20 - Sat, Aug 22

7:00 am - 6:20 amIDA Idaho Falls Fanning Field-LHR London Heathrow

16h 20m1 stop Dallas/Fort Worth

12:55 pm - 9:20 pmLHR London Heathrow-IDA Idaho Falls Fanning Field

15h 25m1 stop Dallas/Fort Worth

$1,532American Airlines

Thu, Aug 20 - Sat, Aug 22

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Air Canada flights from Idaho to London

Our best Air Canada deals on Idaho to London flight tickets

Air Canada

Dec 7

BOI5:22 pmBoise Air Term. Gowen Fld

35h 28m

2 stops

LHR11:50 amLondon Heathrow

Jan 13

LHR2:30 pmLondon Heathrow

36h 05m

2 stops

BOI7:35 pmBoise Air Term. Gowen Fld

$901

Air Canada

Feb 13

BOI6:55 pmBoise Air Term. Gowen Fld

28h 35m

2 stops

LHR6:30 amLondon Heathrow

Apr 23

LHR5:40 pmLondon Heathrow

31h 15m

2 stops

BOI5:55 pmBoise Air Term. Gowen Fld

$914

Air Canada

Nov 17

GEG11:22 amSpokane

35h 48m

2 stops

LHR7:10 amLondon Heathrow

Dec 1

LHR2:30 pmLondon Heathrow

41h 08m

2 stops

GEG11:38 pmSpokane

$949

United Airlines flights from Idaho to London

Our best United Airlines deals on Idaho to London flight tickets

United Airlines

Dec 6

JAC12:30 pmJackson Hole

12h 25m

1 stop

LHR7:55 amLondon Heathrow

Dec 8

LHR6:50 amLondon Heathrow

21h 12m

3 stops

JAC9:02 pmJackson Hole

$747

United Airlines

Dec 6

JAC12:30 pmJackson Hole

12h 25m

1 stop

LHR7:55 amLondon Heathrow

Dec 8

LHR6:35 amLondon Heathrow

21h 27m

2 stops

JAC9:02 pmJackson Hole

$749

United Airlines

Dec 6

JAC12:30 pmJackson Hole

12h 25m

1 stop

LHR7:55 amLondon Heathrow

Dec 8

LHR6:35 amLondon Heathrow

21h 27m

2 stops

JAC9:02 pmJackson Hole

$750

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

JacksonLondon

JAC Jackson Hole - LHR London Heathrow

JACLHR

Jackson Hole

Sun 12/6

12:30 pm-7:55 am

1 stop12h 25m

London Heathrow

Tue 12/8

6:50 am-9:02 pm

3 stops21h 12m

$747

JacksonLondon

JAC Jackson Hole - LHR London Heathrow

JACLHR

Jackson Hole

Sun 12/6

12:30 pm-7:55 am

1 stop12h 25m

London Heathrow

Tue 12/8

6:35 am-9:02 pm

2 stops21h 27m

$749

BoiseLondon

BOI Boise Air Term. Gowen Fld - LHR London Heathrow

BOILHR

Boise Air Term. Gowen Fld

Sun 12/6

6:20 am-7:10 am

2 stops17h 50m

London Heathrow

Tue 12/8

6:35 am-5:55 pm

2 stops18h 20m

$753

JacksonLondon

JAC Jackson Hole - LHR London Heathrow

JACLHR

Jackson Hole

Sun 12/6

12:30 pm-7:55 am

1 stop12h 25m

London Heathrow

Tue 12/8

6:35 am-9:02 pm

2 stops21h 27m

$800

BoiseLondon

BOI Boise Air Term. Gowen Fld - LHR London Heathrow

BOILHR

Boise Air Term. Gowen Fld

Sun 12/6

11:30 am-10:45 am

2 stops16h 15m

London Heathrow

Tue 12/8

10:45 am-5:58 pm

1 stop14h 13m

$815

BoiseLondon

BOI Boise Air Term. Gowen Fld - LHR London Heathrow

BOILHR

Boise Air Term. Gowen Fld

Sun 12/6

11:30 am-10:45 am

2 stops16h 15m

London Heathrow

Tue 12/8

10:45 am-12:04 am

1 stop20h 19m

$816

BoiseLondon

BOI Boise Air Term. Gowen Fld - LHR London Heathrow

BOILHR

Boise Air Term. Gowen Fld

Wed 2/10

11:30 am-10:30 am

2 stops16h 00m

London Heathrow

Wed 4/21

9:55 am-8:17 pm

2 stops17h 22m

$895

BoiseLondon

BOI Boise Air Term. Gowen Fld - LHR London Heathrow

BOILHR

Boise Air Term. Gowen Fld

Mon 9/28

12:17 pm-11:20 am

1 stop16h 03m

London Heathrow

Wed 10/14

12:25 pm-11:59 pm

1 stop18h 34m

$924

Quickest round-trip

SpokaneLondon

GEG Spokane - LHR London Heathrow

GEGLHR

Spokane

Wed 10/14

12:49 pm-10:55 am

1 stop14h 06m

London Heathrow

Wed 10/28

11:50 am-8:43 pm

1 stop15h 53m

$935

SpokaneLondon

GEG Spokane - LHR London Heathrow

GEGLHR

Spokane

Wed 9/23

12:45 pm-12:50 pm

1 stop16h 05m

London Heathrow

Wed 10/14

10:05 am-11:01 pm

1 stop20h 56m

$935

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 to London

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

Other information

What is the cheapest month to fly to London?

The cheapest month to fly to London from Idaho is in November. Flight prices, which tend to average around $711, are often lower during this time because this is during the off-season. The month of October is another great option to travel to London, with average flight prices from Idaho averaging around $810.

Can stopping save me money on Idaho to London flights?

You could potentially save up to 9% on your flight if you consider stops on a Idaho to London flight.

Cheap Idaho to London flight deals and tips

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

Best Price Found	$324
Fastest flight time	12h 03m
Direct flights	None

The best one-way flight to London from Idaho in the past 72 hours is $324. The best round-trip flight deal from Idaho to London found on momondo in the last 72 hours is $747.

The fastest flight from Idaho to London takes 12h 03m

There are no direct flights from Idaho to London. There are no popular flight routes from Idaho to London.

Search flight deals

Frequently asked questions about flying from Idaho to London

When did momondo last update prices for flights from Idaho to London?
Prices for flights from Idaho to London refresh daily.
How many operators does momondo search for flights from Idaho to London?
The number of operators available for flights from Idaho to London is 4 as of August 2026.
How old do you have to be to fly from Idaho to London?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Idaho to London.
What documentation or ID do you need to fly to London?
The travel and health documents required for your trip to London 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 London. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Idaho to London

Compare and see reviews for airlines that fly from Idaho to London with momondo

Airline	Rating	Free Cancellation	Price
Virgin Atlantic	PriceFrom $600	Free Cancellation	Rating 7.4 695 reviews	Search Virgin Atlantic flights
United Airlines	PriceFrom $639	Free Cancellation	Rating 7.4 10,101 reviews	Search United Airlines flights
Delta	PriceFrom $648	Free Cancellation	Rating 7.8 8,502 reviews	Search Delta flights

Hounslow

Gatwick

Milton Keynes

Luton

Hayes

Wembley

Croydon

Dover

Stansted

Richmond

Kingston upon Thames

Harrow

Watford

Cobham

Slough

Uxbridge

Eastbourne

Worthing

Romford

Ilford

Why use momondo?

Why should I use momondo to find a flight deal from Idaho 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 to London for you.

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

Yes. All flights to London from Idaho on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once all potential Idaho to London flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Yes momondo offers price alerts on flights to London from Idaho. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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London Stansted Airport

Cheap flights from Idaho to London from $324

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Idaho to London departing on 2/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from Idaho to London

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Air Canada flights from Idaho to London

Our best Air Canada deals on Idaho to London flight tickets

United Airlines flights from Idaho to London

Our best United Airlines deals on Idaho to London flight tickets

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How to get the cheapest flight ticket from Idaho to London

What is the cheapest month to fly to London?

Can stopping save me money on Idaho to London flights?

What is the cheapest airline that flies from Idaho to London?

What airlines fly to London?

How long does it take to fly to London?

Cheap Idaho to London flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from Idaho to London

Best airlines flying from Idaho to London

Compare and see reviews for airlines that fly from Idaho to London with momondo

Traveling to a place near London?

Why use momondo?

An easier way to manage your London 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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United Kingdom

Fly into one of these airports located in London

Airports listed have a maximum distance of 35.6 mi from London

Fly your favorite airline to London

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to London

List of cabin classes available on flights landing in London. Availability may vary depending on flight origin and airline.

Popular cities in the United Kingdom

Popular flights according to clicks in the last 7 days on momondo

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According to popular flight searches on momondo this year

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