What airlines fly to United Kingdom?

Delta, United Airlines and American Airlines are the top three most popular airlines that fly to United Kingdom from Idaho according to our data. Delta is the first choice among our users, with 34% of people opting to fly with this airline when traveling to United Kingdom. Keep in mind that there are 5 different airlines that fly to United Kingdom on a routine basis, so you have a few additional options to choose from.

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 Boise (a popular airport in Idaho) to London Heathrow Airport (the most popular airport in United Kingdom), then the flight time is 11h 41m on average. If you fly from Idaho Falls (another popular airport in Idaho) to London Heathrow Airport, then the average flight time is 12h 02m.

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

KLM, United Airlines, and Air Canada are the most popular carriers operating from Idaho to United Kingdom

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 April 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.

$396 Cheap Flights from Idaho to the United Kingdom in 2025

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Find the cheapest flights from Idaho to the United Kingdom

Round-trip

One-way

Last minute

Cheap round-trip flights

KAYAK's recommended round-trip deals from the most popular airlines that fly from Idaho to the United Kingdom.

3:05 pm - 5:40 pmBOI-LHR

19h 35m2 stops

7:30 pm - 6:31 pmLHR-BOI

30h 01m2 stops

$626Scandinavian Airlines

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mar., oct. 14 - mar., oct. 21

3:43 pm - 5:40 pmBOI-LHR

18h 57m2 stops

10:20 am - 11:16 pmLHR-BOI

19h 56m2 stops

$691Scandinavian Airlines

Find Deal

mar., ago. 26 - jue., sep. 4

3:00 pm - 1:10 pmBOI-LHR

15h 10m1 stop

11:45 am - 12:17 amLHR-BOI

19h 32m2 stops

$696Delta

Find Deal

dom., sep. 14 - mié., oct. 8

2:45 pm - 1:10 pmBOI-LHR

15h 25m1 stop

6:15 am - 4:29 pmLHR-BOI

17h 14m2 stops

$702Delta

Find Deal

mié., sep. 3 - mar., sep. 16

11:45 am - 9:50 amBOI-LHR

15h 05m1 stop

12:25 pm - 11:38 pmLHR-BOI

18h 13m1 stop

$710KLM

Find Deal

mié., sep. 3 - mar., sep. 16

2:13 pm - 10:55 amGEG-LGW

36h 42m2 stops

10:55 am - 10:29 pmLGW-GEG

19h 34m1 stop

$713

Find Deal

jue., may. 1 - mié., may. 7

10:53 am - 9:40 amIDA-LHR

15h 47m1 stop

2:05 pm - 10:51 pmLHR-IDA

39h 46m2 stops

$720United Airlines

Find Deal

mié., may. 14 - mié., may. 21

7:00 am - 6:30 amBOI-LHR

16h 30m2 stops

8:30 am - 9:16 pmLHR-BOI

19h 46m3 stops

$721

Find Deal

mié., sep. 3 - mar., sep. 16

2:40 pm - 9:40 amIDA-LHR

12h 00m1 stop

11:25 am - 10:45 pmLHR-IDA

18h 20m1 stop

$743United Airlines

Find Deal

mié., may. 14 - mié., may. 21

11:45 am - 9:50 amBOI-LHR

15h 05m1 stop

10:55 am - 10:04 pmLHR-BOI

18h 09m1 stop

$760KLM

Find Deal

mié., oct. 1 - dom., oct. 19

KLM flights from Idaho to United Kingdom

Our best KLM deals on Idaho to United Kingdom flight tickets

KLM

Sep 3

BOI11:45 amBoise Air Term. Gowen Fld

15h 05m

1 stop

LHR9:50 amLondon Heathrow

Sep 16

LHR12:25 pmLondon Heathrow

18h 13m

1 stop

BOI11:38 pmBoise Air Term. Gowen Fld

$710

Find similar

KLM

Oct 1

BOI11:45 amBoise Air Term. Gowen Fld

15h 05m

1 stop

LHR9:50 amLondon Heathrow

Oct 19

LHR10:55 amLondon Heathrow

18h 09m

1 stop

BOI10:04 pmBoise Air Term. Gowen Fld

$760

Find similar

KLM

Sep 9

BOI1:15 pmBoise Air Term. Gowen Fld

13h 35m

1 stop

LHR9:50 amLondon Heathrow

Sep 30

LHR10:55 amLondon Heathrow

18h 09m

1 stop

BOI10:04 pmBoise Air Term. Gowen Fld

$785

Find similar

United Airlines flights from Idaho to United Kingdom

Our best United Airlines deals on Idaho to United Kingdom flight tickets

United Airlines

May 14

IDA10:53 amIdaho Falls Fanning Field

15h 47m

1 stop

LHR9:40 amLondon Heathrow

May 21

LHR2:05 pmLondon Heathrow

39h 46m

2 stops

IDA10:51 pmIdaho Falls Fanning Field

$720

Find similar

United Airlines

May 14

IDA2:40 pmIdaho Falls Fanning Field

12h 00m

1 stop

LHR9:40 amLondon Heathrow

May 21

LHR11:25 amLondon Heathrow

18h 20m

1 stop

IDA10:45 pmIdaho Falls Fanning Field

$743

Find similar

United Airlines

Sep 28

BOI8:20 amBoise Air Term. Gowen Fld

17h 05m

1 stop

EDI8:25 amEdinburgh Turnhouse

Oct 22

EDI11:30 amEdinburgh Turnhouse

14h 04m

1 stop

BOI6:34 pmBoise Air Term. Gowen Fld

$748

Find similar

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, November 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 $746. If you aren’t able to travel to United Kingdom during the month of November, then flying in December is also cheap. Prices for this month can be found on momondo for an average of $782.

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.

How far in advance should I book a flight to United Kingdom?

You are more likely to see cheaper flights to United Kingdom from Idaho when booking 4 weeks ahead of your departure date. In general, you can expect to find flights to United Kingdom for around $931 when searching 4 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to United Kingdom from Idaho for as low as $821 on momondo.

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

Best Price Found	$396
Fastest flight time	11h 22m
Direct flights	None
Airports in United Kingdom	4 airports

The best one-way flight to United Kingdom from Idaho in the past 72 hours is $396. The best round-trip flight deal from Idaho to United Kingdom found on momondo in the last 72 hours is $626.

The fastest flight from Idaho to United Kingdom takes 11h 22m

There are no direct flights from Idaho to United Kingdom. Popular non-direct routes for this connection are Boise Air Term. Gowen Fld Airport - London Gatwick Airport, Boise Air Term. Gowen Fld Airport - London Heathrow Airport and Boise Air Term. Gowen Fld Airport - Edinburgh Turnhouse Airport.

There are 4 airports near United Kingdom: London City (LCY), London Heathrow (LHR), Edinburgh Turnhouse (EDI), London Gatwick (LGW)

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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 April 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
American Airlines	PriceFrom $648	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
United Airlines	PriceFrom $687	Free Cancellation	Rating 7.4 8,667 reviews	Search United Airlines flights
Virgin Atlantic	PriceFrom $695	Free Cancellation	Rating 7.4 642 reviews	Search Virgin Atlantic flights
Delta	PriceFrom $723	Free Cancellation	Rating 8.0 7,916 reviews	Search Delta flights
Icelandair	PriceFrom $1,072	Free Cancellation	Rating 7.0 481 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.