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Cheap flights from Idaho to the United Kingdom from £211

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 the United Kingdom departing on 21/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Idaho to the United Kingdom

Cheap return flights

Delta Logo
13:00 - 10:00GEG-LHR
13h 00m1 stop
Delta Logo
06:20 - 18:47LHR-GEG
20h 27m2 stops
£441Delta
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Wed, 5 Nov - Wed, 19 Nov
Delta Logo
06:00 - 06:25GEG-LHR
16h 25m2 stops
Delta Logo
06:20 - 18:18LHR-GEG
19h 58m2 stops
£444Delta
Find Deal
Wed, 5 Nov - Wed, 19 Nov
KLM Logo
09:45 - 10:00GEG-LHR
16h 15m1 stop
KLM Logo
10:45 - 18:18LHR-GEG
15h 33m1 stop
£446KLM
Find Deal
Wed, 5 Nov - Wed, 19 Nov
United Airlines Logo
07:00 - 12:20BOI-LHR
22h 20m1 stop
United Airlines Logo
13:25 - 11:39LHR-BOI
29h 14m2 stops
£451United Airlines
Find Deal
Tue, 14 Oct - Tue, 11 Nov
United Airlines Logo
10:48 - 09:40BOI-LHR
15h 52m1 stop
United Airlines Logo
16:00 - 11:39LHR-BOI
26h 39m2 stops
£456United Airlines
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Sun, 21 Sep - Fri, 3 Oct
KLM Logo
13:16 - 10:30GEG-LHR
14h 14m1 stop
KLM Logo
11:05 - 19:46LHR-GEG
16h 41m1 stop
£457KLM
Find Deal
Tue, 28 Oct - Thu, 6 Nov
Finnair Logo
07:00 - 06:25BOI-LHR
16h 25m1 stop
Finnair Logo
10:30 - 21:48LHR-BOI
18h 18m1 stop
£468Finnair
Find Deal
Tue, 23 Sep - Wed, 1 Oct
Air Canada Logo
17:39 - 06:30BOI-LHR
29h 51m2 stops
Air Canada Logo
17:40 - 18:47LHR-BOI
32h 07m2 stops
£469Air Canada
Find Deal
Sat, 20 Sep - Thu, 2 Oct
Air Canada Logo
17:39 - 06:30BOI-LHR
29h 51m2 stops
Air Canada Logo
14:05 - 09:42LHR-BOI
26h 37m2 stops
£484Air Canada
Find Deal
Sat, 20 Sep - Wed, 1 Oct
Finnair Logo
07:00 - 06:25BOI-LHR
16h 25m1 stop
Finnair Logo
12:00 - 21:48LHR-BOI
16h 48m1 stop
£572Finnair
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Wed, 17 Sep - Fri, 3 Oct

American Airlines flights from Idaho to United Kingdom

Our best American Airlines deals on Idaho to United Kingdom flight tickets
American Airlines
13 Nov
JAC13:11Jackson Hole
16h 04m
1 stop
LHR12:15London Heathrow
16 Nov
LHR15:25London Heathrow
27h 51m
2 stops
JAC12:16Jackson Hole
£562
Find similar
American Airlines
13 Nov
JAC13:11Jackson Hole
13h 49m
1 stop
LHR10:00London Heathrow
16 Nov
LHR08:20London Heathrow
34h 56m
1 stop
JAC12:16Jackson Hole
£563
Find similar
American Airlines
25 Sept
JAC15:19Jackson Hole
12h 46m
1 stop
LHR11:05London Heathrow
5 Oct
LHR09:15London Heathrow
13h 13m
1 stop
JAC15:28Jackson Hole
£632
Find similar

Virgin Atlantic flights from Idaho to United Kingdom

Our best Virgin Atlantic deals on Idaho to United Kingdom flight tickets
Virgin Atlantic
2 Sept
BOI12:45Boise Air Term. Gowen Fld
15h 35m
2 stops
LHR11:20London Heathrow
16 Sept
LHR13:25London Heathrow
17h 50m
2 stops
BOI00:15Boise Air Term. Gowen Fld
£472
Find similar
Virgin Atlantic
28 Oct
GEG06:00Spokane
17h 50m
2 stops
LHR06:50London Heathrow
8 Nov
LHR08:40London Heathrow
19h 06m
2 stops
GEG19:46Spokane
£494
Find similar
Virgin Atlantic
20 Sept
GEG17:30Spokane
12h 45m
1 stop
LHR14:15London Heathrow
27 Sept
LHR10:55London Heathrow
19h 34m
1 stop
GEG22:29Spokane
£541
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Idaho to United Kingdom 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 279,928 searches. Data last updated 8 August 2025.
Use the filters below to find and compare flights from Idaho to the United Kingdom that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SpokaneLondon

GEG - LHR

GEGLHR

Spokane

Wed 5/11

13:00-10:00

1 stop13h 00m

London Heathrow

Wed 19/11

06:20-18:47

2 stops20h 27m

£441

SpokaneLondon

GEG - LHR

GEGLHR

Spokane

Wed 5/11

06:00-06:25

2 stops16h 25m

London Heathrow

Wed 19/11

06:20-18:18

2 stops19h 58m

£444

SpokaneLondon

GEG - LHR

GEGLHR

Spokane

Wed 5/11

09:45-10:00

1 stop16h 15m

London Heathrow

Wed 19/11

10:45-18:18

1 stop15h 33m

£446

BoiseLondon

BOI - LHR

BOILHR

Boise Air Term. Gowen Fld

Tue 14/10

07:00-12:20

1 stop22h 20m

London Heathrow

Tue 11/11

13:25-11:39

2 stops29h 14m

£451

BoiseLondon

BOI - LHR

BOILHR

Boise Air Term. Gowen Fld

Sun 21/9

10:48-09:40

1 stop15h 52m

London Heathrow

Fri 3/10

16:00-11:39

2 stops26h 39m

£456

SpokaneLondon

GEG - LHR

GEGLHR

Spokane

Tue 28/10

13:16-10:30

1 stop14h 14m

London Heathrow

Thu 6/11

11:05-19:46

1 stop16h 41m

£457

BoiseLondon

BOI - LHR

BOILHR

Boise Air Term. Gowen Fld

Tue 23/9

07:00-06:25

1 stop16h 25m

London Heathrow

Wed 1/10

10:30-21:48

1 stop18h 18m

£468

BoiseLondon

BOI - LHR

BOILHR

Boise Air Term. Gowen Fld

Sat 20/9

17:39-06:30

2 stops29h 51m

London Heathrow

Thu 2/10

17:40-18:47

2 stops32h 07m

£469

BoiseLondon

BOI - LHR

BOILHR

Boise Air Term. Gowen Fld

Sat 20/9

17:39-06:30

2 stops29h 51m

London Heathrow

Wed 1/10

14:05-09:42

2 stops26h 37m

£484

BoiseLondon

BOI - LHR

BOILHR

Boise Air Term. Gowen Fld

Wed 17/9

07:00-06:25

1 stop16h 25m

London Heathrow

Fri 3/10

12:00-21:48

1 stop16h 48m

£572

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to the United Kingdom from

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

What is the cheapest month to fly to United Kingdom?

The cheapest month to fly to United Kingdom from Idaho is in October. Flight prices, which tend to average around £560, are often lower during this time because this is during the off-season. If you are unable to visit United Kingdom during the month of October, then departing from Idaho during the month February is also very affordable. Most momondo users find prices during this month for around £587.

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

The cheapest time of day to fly to United Kingdom is at midday when flights can be purchased for as low as £531. Try not to purchase tickets in the afternoon because they tend to be around £607. Of course, these prices can vary depending on the time of year and what airport you fly to.

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 weeks ahead of your departure date. In general, you can expect to find flights to United Kingdom for around £703 when searching weeks before you fly. 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 £431 on momondo.

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

You could potentially save up to 21% 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

Best price found

£211

Fastest flight time

11h 41m

Direct flights

None

Airports in United Kingdom

5 airports
The best one-way flight to United Kingdom from Idaho in the past 72 hours is £211. The best return flight deal from Idaho to United Kingdom found on momondo in the last 72 hours is £441.
The fastest flight from Idaho to United Kingdom takes 11h 41m
There are no direct flights from Idaho to United Kingdom. Popular non-direct routes for this connection are Spokane Airport - London Heathrow Airport, Boise Air Term. Gowen Fld Airport - London Heathrow Airport and Spokane Airport - London Gatwick Airport.
There are 5 airports near United Kingdom: London City (LCY), London Heathrow (LHR), Edinburgh Turnhouse (EDI), London Gatwick (LGW), Glasgow Intl (GLA)
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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 were last updated today.

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

  • 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 that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check 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
Virgin AtlanticPriceFrom £510Free CancellationRating
7.4
657 reviews
Search Virgin Atlantic flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Idaho to United Kingdom. momondo saves you time and could save you money on your trip.

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

All flight searches from Idaho to United Kingdom on momondo can be filtered to show those which offer flexible booking policies.

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

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 Idaho to United Kingdom.

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

Price alerts on flights to United Kingdom from Idaho are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your United Kingdom trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
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Find better results for your trip to the United Kingdom

Popular Cities in the United Kingdom

Popular flights according to clicks in the last 7 days on momondo
Flights to Londonfrom £27
Flights to Manchesterfrom £31
Flights to Birminghamfrom £33
Flights to Edinburghfrom £28
Flights to Belfastfrom £29
Flights to Glasgowfrom £29
Flights to Bristolfrom £34
Flights to Newcastle upon Tynefrom £33
Flights to Aberdeenfrom £51
Flights to Liverpoolfrom £29
Flights to Leedsfrom £34
Flights to Invernessfrom £35