What airlines fly to United Kingdom?

United Airlines, Delta and Virgin Atlantic are the top three most popular airlines that fly to United Kingdom from Idaho according to our data. United Airlines is the first choice among our users, with 41% of people opting to fly with this airline when traveling to United Kingdom. Keep in mind that there are 6 different airlines that fly to United Kingdom on a routine basis, so you have a few additional options to choose from.

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

Lufthansa, United Airlines, and Delta are the most popular carriers operating from Idaho to United Kingdom

How long is the flight from Idaho to United Kingdom?

The flight from Idaho to United Kingdom depends on which airports you’re departing and arriving from and whether or not you have a layover. If you fly from Idaho Falls (a popular airport in Idaho) to London Heathrow Airport (the most popular airport in United Kingdom), then the flight time is 11h 23m on average. If you fly from Boise (another popular airport in Idaho) to London Heathrow Airport, then the average flight time is 12h.

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

Prices for flights from Idaho to United Kingdom refresh daily.

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

The number of operators available for flights from Idaho to United Kingdom is 5 as of December 2025.

How old do you have to be to fly from Idaho to United Kingdom?

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 Idaho to United Kingdom.

What documentation or ID do you need to fly to United Kingdom?

The required travel and health documents for your United Kingdom 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 United Kingdom. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$302 Cheap Flights from Idaho to the United Kingdom in 2025/26

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Find the cheapest flights from Idaho to the United Kingdom

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

12:38 pm - 12:00 pm

GEG

LHR

15h 22m1 stop

7:40 am - 9:03 pm

LHR

GEG

20h 23m2 stops

$597Lufthansa

Wed, Mar 4 - Wed, Mar 11

12:38 pm - 12:00 pm

GEG

LHR

15h 22m1 stop

7:40 am - 9:03 pm

LHR

GEG

20h 23m2 stops

$598Lufthansa

Wed, Mar 4 - Mon, Mar 9

1:44 pm - 5:05 pm

GEG

LHR

19h 21m2 stops

7:40 am - 9:03 pm

LHR

GEG

20h 23m2 stops

$605Lufthansa

Wed, Mar 4 - Mon, Mar 9

12:55 pm - 4:50 pm

GEG

EDI

19h 55m2 stops

11:25 am - 12:23 am

EDI

GEG

19h 58m2 stops

$610Multiple Airlines

Tue, Feb 24 - Thu, Mar 12

12:00 pm - 3:15 pm

GEG

EDI

19h 15m2 stops

11:25 am - 12:23 am

EDI

GEG

19h 58m2 stops

$611Multiple Airlines

Tue, Feb 24 - Thu, Mar 12

5:00 am - 7:55 am

GEG

EDI

18h 55m2 stops

9:25 am - 9:23 pm

EDI

GEG

19h 58m2 stops

$620United Airlines

Fri, Jan 30 - Tue, Feb 3

9:48 am - 7:55 am

BOI

EDI

15h 07m2 stops

9:25 am - 10:57 pm

EDI

BOI

20h 32m2 stops

$620United Airlines

Fri, Feb 6 - Tue, Feb 10

5:51 am - 9:00 am

GEG

LGW

19h 09m2 stops

12:30 pm - 4:54 pm

LGW

GEG

35h 24m2 stops

$620American Airlines

Wed, Mar 4 - Mon, Mar 9

5:51 am - 9:00 am

GEG

LGW

19h 09m2 stops

12:30 pm - 4:54 pm

LGW

GEG

35h 24m2 stops

$621American Airlines

Wed, Mar 4 - Mon, Mar 9

12:59 pm - 10:00 am

BOI

LHR

14h 01m1 stop

11:20 am - 10:45 pm

LHR

BOI

18h 25m1 stop

$621Virgin Atlantic

Tue, Feb 17 - Thu, Feb 26

Lufthansa flights from Idaho to United Kingdom

Our best Lufthansa deals on Idaho to United Kingdom flight tickets

Lufthansa

Mar 4

GEG12:38 pmSpokane

15h 22m

1 stop

LHR12:00 pmLondon Heathrow

Mar 9

LHR7:40 amLondon Heathrow

20h 38m

2 stops

GEG9:18 pmSpokane

$597

Find similar

Lufthansa

Mar 4

GEG12:38 pmSpokane

15h 22m

1 stop

LHR12:00 pmLondon Heathrow

Mar 9

LHR7:40 amLondon Heathrow

20h 23m

2 stops

GEG9:03 pmSpokane

$598

Find similar

Lufthansa

Jan 22

BOI12:19 pmBoise Air Term. Gowen Fld

20h 31m

2 stops

LHR3:50 pmLondon Heathrow

Jan 28

LHR6:35 amLondon Heathrow

18h 32m

2 stops

BOI6:07 pmBoise Air Term. Gowen Fld

$605

Find similar

Iberia flights from Idaho to United Kingdom

Our best Iberia deals on Idaho to United Kingdom flight tickets

Iberia

Feb 20

BOI7:00 amBoise Air Term. Gowen Fld

18h 15m

1 stop

LHR8:15 amLondon Heathrow

Feb 28

LHR6:05 amLondon Heathrow

23h 31m

2 stops

BOI10:36 pmBoise Air Term. Gowen Fld

$626

Find similar

Iberia

Feb 19

BOI7:00 amBoise Air Term. Gowen Fld

18h 50m

2 stops

LCY8:50 amLondon City

Mar 4

LCY7:50 amLondon City

21h 46m

2 stops

BOI10:36 pmBoise Air Term. Gowen Fld

$669

Find similar

Iberia

Jan 8

BOI7:20 amBoise Air Term. Gowen Fld

20h 30m

2 stops

LGW10:50 amLondon Gatwick

Jan 9

LGW7:40 pmLondon Gatwick

32h 38m

2 stops

BOI9:18 pmBoise Air Term. Gowen Fld

$5,525

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SpokaneLondon

GEG - LHR

GEGLHR

Spokane

Wed 3/4

12:38 pm-12:00 pm

1 stop15h 22m

London Heathrow

Wed 3/11

7:40 am-9:03 pm

2 stops20h 23m

$597

SpokaneLondon

GEG - LHR

GEGLHR

Spokane

Wed 3/4

12:38 pm-12:00 pm

1 stop15h 22m

London Heathrow

Mon 3/9

7:40 am-9:03 pm

2 stops20h 23m

$598

SpokaneLondon

GEG - LHR

GEGLHR

Spokane

Wed 3/4

1:44 pm-5:05 pm

2 stops19h 21m

London Heathrow

Mon 3/9

7:40 am-9:03 pm

2 stops20h 23m

$605

SpokaneEdinburgh

GEG - EDI

GEGEDI

Spokane

Tue 2/24

12:55 pm-4:50 pm

2 stops19h 55m

Edinburgh Turnhouse

Thu 3/12

11:25 am-12:23 am

2 stops19h 58m

$610

SpokaneEdinburgh

GEG - EDI

GEGEDI

Spokane

Tue 2/24

12:00 pm-3:15 pm

2 stops19h 15m

Edinburgh Turnhouse

Thu 3/12

11:25 am-12:23 am

2 stops19h 58m

$611

SpokaneEdinburgh

GEG - EDI

GEGEDI

Spokane

Fri 1/30

5:00 am-7:55 am

2 stops18h 55m

Edinburgh Turnhouse

Tue 2/3

9:25 am-9:23 pm

2 stops19h 58m

$620

BoiseEdinburgh

BOI - EDI

BOIEDI

Boise Air Term. Gowen Fld

Fri 2/6

9:48 am-7:55 am

2 stops15h 07m

Edinburgh Turnhouse

Tue 2/10

9:25 am-10:57 pm

2 stops20h 32m

$620

SpokaneLondon

GEG - LGW

GEGLGW

Spokane

Wed 3/4

5:51 am-9:00 am

2 stops19h 09m

London Gatwick

Mon 3/9

12:30 pm-4:54 pm

2 stops35h 24m

$620

SpokaneLondon

GEG - LGW

GEGLGW

Spokane

Wed 3/4

5:51 am-9:00 am

2 stops19h 09m

London Gatwick

Mon 3/9

12:30 pm-4:54 pm

2 stops35h 24m

$621

BoiseLondon

BOI - LHR

BOILHR

Boise Air Term. Gowen Fld

Tue 2/17

12:59 pm-10:00 am

1 stop14h 01m

London Heathrow

Thu 2/26

11:20 am-10:45 pm

1 stop18h 25m

$621

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 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

Other information

What is the cheapest month to fly to United Kingdom?

In general, October is the cheapest month to fly from Idaho to United Kingdom. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $662. If you aren’t able to travel to United Kingdom during the month of October, then flying in April is also cheap. Prices for this month can be found on momondo for an average of $788.

What is the cheapest day to depart on your flight to United Kingdom?

The cheapest day to depart from Idaho to United Kingdom is on a Wednesday when prices can be found for as low as $801. The most expensive day to fly to United Kingdom is Friday, with ticket prices averaging around $975.

What is the cheapest time of day to depart on your flight to United Kingdom?

According to our data, the cheapest time of day to fly to United Kingdom is in the morning. momondo users have found flights departing from Idaho to United Kingdom in the morning for as low as $864. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to United Kingdom are more costly in the evening, with an average ticket price of $1,103. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

Can stopping save me money on Idaho to United Kingdom flights?

You could potentially save up to 5% on your flight if you consider stops on a Idaho to United Kingdom flight.

Cheap Idaho to United Kingdom flight deals and tips

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

Fastest flight time	11h 23m
Direct flights	None

The fastest flight from Idaho to United Kingdom takes 11h 23m

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

Search flight deals

When did momondo last update prices for flights from Idaho to United Kingdom?
Prices for flights from Idaho to United Kingdom refresh daily.
How many operators does momondo search for flights from Idaho to United Kingdom?
The number of operators available for flights from Idaho to United Kingdom is 5 as of December 2025.
How old do you have to be to fly from Idaho to United Kingdom?
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 Idaho to United Kingdom.
What documentation or ID do you need to fly to United Kingdom?
The required travel and health documents for your United Kingdom 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 United Kingdom. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Idaho to United Kingdom

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

Airline	Rating	Free Cancellation	Price
KLM	PriceFrom $577	Free Cancellation	Rating 7.7 1,434 reviews	Search KLM flights
Virgin Atlantic	PriceFrom $604	Free Cancellation	Rating 7.5 677 reviews	Search Virgin Atlantic flights
Delta	PriceFrom $627	Free Cancellation	Rating 7.9 8,014 reviews	Search Delta flights
United Airlines	PriceFrom $639	Free Cancellation	Rating 7.4 9,115 reviews	Search United Airlines flights
American Airlines	PriceFrom $703	Free Cancellation	Rating 7.2 11,064 reviews	Search American Airlines flights
Icelandair	PriceFrom $1,162	Free Cancellation	Rating 7.0 592 reviews	Search Icelandair flights

Why use momondo?

Why should I use momondo to find a flight deal from Idaho to United Kingdom?

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 United Kingdom for you.

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

Yes. momondo enables you to select and highlight flights to United Kingdom from Idaho with this policy.

How can momondo help me find flights from Idaho to United Kingdom?

Once you have performed a search for Idaho to United Kingdom flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are simply researching potential flights to United Kingdom, momondo offers a useful price alert feature which will track prices for flights to United Kingdom from Idaho and alert you when they change.