How long is the flight from London to Idaho?

Airlines like Air Canada, Alaska Airlines, and United Airlines fly from London to Idaho in about 26h 49m. The time it takes to get you to your destination can typically vary by up to 4h 47m. The distance from London to Idaho is about 4829 mi. Both multi-stop and direct flights can be found to your destination and back.

In terms of precipitation, rainfall in Idaho ranges from 5.0 - 41.0 inches per month. December is typically the wettest month, when rainfall can reach 41.0 mm. August is typically the driest time to visit Idaho when rainfall is around 5.0 mm.

If weather is an important factor for your trip to Idaho, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 24.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around -1.0 C).

What are the most popular routes from London to Idaho?

While some choose either London Gatwick - Spokane or London Heathrow - Boise Air Term. Gowen Fld, London Heathrow - Spokane is the most popular route from London to Idaho.

What are the most popular airlines that fly from London to Idaho?

Consider United Airlines, Virgin Atlantic or Lufthansa when booking your flight. These represent the most popular airlines when flying from London to Idaho.

What is the cheapest time of day to fly from LON to ID?

When flying from London to Idaho, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Can I find deals for flights from London to Idaho that include hotel bookings?

Yes. In addition to deals on London to Idaho flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from London to Idaho?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Idaho.

Can I find deals for business class flights from London to Idaho?

Yes. Cheapflights offers flight deals from London to Idaho by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£361+ Cheap Flights from London to Idaho

Cheap flight deals from London to Idaho

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

Cheapest flights from London to Idaho
Explore the most affordable flight options available from London to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 September 2026.

Fri 2/1006:40 -

2 stops20h 10m

Fri 9/1013:00 -

3 stops21h 30m

Deal found 4/9£597

Sat 3/1006:40 -

2 stops19h 00m

Sat 10/1012:08 -

3 stops21h 52m

Deal found 2/9£597

Fri 25/906:40 -

2 stops18h 59m

Sat 3/1010:34 -

2 stops24h 56m

Deal found 2/9£622

Thu 1/1015:40 -

2 stops16h 19m

Thu 15/1006:03 -

2 stops24h 37m

Deal found 3/9£633

Thu 15/1011:45 -

2 stops19h 14m

Thu 22/1014:06 -

1 stop14h 14m

Deal found 31/8£636

Thu 1/1011:40 -

1 stop18h 45m

Thu 15/1013:38 -

1 stop13h 42m

Deal found 3/9£655

Sat 3/1011:40 -

1 stop19h 19m

Sat 10/1018:04 -

1 stop14h 31m

Deal found 2/9£660

Sun 13/1212:15 -

2 stops20h 03m

Mon 28/1206:00 -

2 stops29h 30m

Deal found 4/9£666

Fri 25/911:40 -

1 stop15h 45m

Sat 3/1014:06 -

1 stop14h 14m

Deal found 2/9£679

Tue 1/1214:30 -

2 stops27h 39m

Tue 8/1212:48 -

2 stops16h 02m

Deal found 31/8£682

Mon 28/914:10 -

2 stops36h 21m

Mon 5/1013:05 -

1 stop14h 05m

Deal found 30/8£687

Wed 28/1011:35 -

2 stops29h 44m

Tue 1/1214:48 -

1 stop11h 52m

Deal found 1/9£688

Best flights from London to Idaho
Discover carefully curated flight deals from London to Idaho that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 4 September 2026.

Mon 1/310:25 -

2 stops18h 55m

Mon 15/314:00 -

2 stops23h 25m

Deal found 31/8£671

Wed 28/1014:30 -

2 stops26h 49m

Tue 1/1212:48 -

2 stops16h 02m

Deal found 1/9£711

Thu 28/114:45 -

1 stop31h 36m

Mon 1/213:56 -

1 stop15h 24m

Deal found 2/9£722

Thu 14/116:20 -

2 stops27h 04m

Mon 18/105:00 -

2 stops17h 20m

Deal found 1/9£724

Tue 1/1207:30 -

2 stops17h 13m

Wed 9/1208:00 -

1 stop16h 55m

Deal found 31/8£734

Sat 3/1006:40 -

2 stops22h 54m

Sat 10/1010:34 -

3 stops23h 26m

Deal found 3/9£822

Mon 30/1110:55 -

1 stop18h 57m

Mon 7/1205:15 -

2 stops18h 35m

Deal found 31/8£831

Thu 1/1015:40 -

2 stops37h 58m

Wed 14/1016:18 -

2 stops15h 22m

Deal found 3/9£835

Wed 14/1010:45 -

2 stops18h 25m

Wed 21/1013:05 -

2 stops15h 15m

Deal found 30/8£847

Thu 8/1006:45 -

2 stops22h 44m

Thu 15/1007:00 -

2 stops30h 45m

Deal found 31/8£907

Sun 13/1220:05 -

2 stops32h 13m

Mon 28/1222:43 -

2 stops24h 32m

Deal found 31/8£953

Wed 28/1007:50 -

2 stops21h 07m

Tue 1/1206:44 -

2 stops24h 21m

Deal found 1/9£993

Thu 1/1019:35 -

2 stops33h 26m

Wed 14/1012:42 -

2 stops22h 03m

Deal found 3/9£1,198

Sat 3/1014:30 -

1 stop15h 27m

Sat 10/1009:12 -

2 stops22h 48m

Deal found 3/9£711

Thu 14/114:45 -

1 stop26h 56m

Mon 18/111:23 -

1 stop17h 57m

Deal found 3/9£722

Tue 13/1014:50 -

2 stops39h 26m

Tue 20/1011:10 -

1 stop13h 50m

Deal found 2/9£747

Wed 14/1011:40 -

1 stop18h 19m

Wed 21/1013:58 -

1 stop14h 22m

Deal found 30/8£712

Wed 28/1014:45 -

1 stop13h 21m

Tue 1/1213:00 -

1 stop16h 20m

Deal found 1/9£731

Tue 1/1211:35 -

1 stop13h 08m

Mon 7/1211:49 -

1 stop13h 06m

Deal found 31/8£757

Wed 28/1010:00 -

2 stops18h 08m

Tue 1/1213:17 -

2 stops19h 28m

Deal found 1/9£833

Mon 26/1009:50 -

2 stops18h 07m

Tue 3/1113:10 -

2 stops20h 30m

Deal found 4/9£850

Mon 14/1211:55 -

2 stops19h 15m

Tue 29/1212:12 -

2 stops14h 43m

Deal found 1/9£869

Sat 21/1114:45 -

1 stop16h 14m

Sat 28/1121:59 -

1 stop31h 21m

Deal found 4/9£738

Mon 14/1212:20 -

1 stop16h 51m

Tue 29/1207:00 -

1 stop25h 30m

Deal found 1/9£757

Fri 11/1210:00 -

2 stops19h 05m

Tue 29/1206:25 -

2 stops18h 35m

Deal found 4/9£865

Sun 4/1012:15 -

2 stops17h 18m

Sun 11/1018:50 -

2 stops19h 45m

Deal found 4/9£786

Tue 13/1018:30 -

2 stops35h 46m

Tue 20/1013:38 -

2 stops20h 17m

Deal found 4/9£898

Fri 16/1015:40 -

2 stops37h 45m

Fri 23/1016:41 -

2 stops13h 59m

Deal found 1/9£902

Mon 14/917:00 -

1 stop23h 46m

Thu 17/910:28 -

1 stop21h 37m

Deal found 31/8£748

Sat 21/1114:30 -

2 stops40h 03m

Sat 28/1112:31 -

1 stop12h 24m

Deal found 3/9£761

Find flight deals from London to Idaho

Round-trip from	£597
One-way from	£361
Popular in	December
Cheapest in	January
Average price	£682

Scandinavian Airlines
3/10-10/10
5 total stops
40h 52m total
London to Idaho

Search Deals

19/10-31/12
3 total stops
44h 31m total
London to Idaho

Search Deals

High demand for flights, 1% potential price rise

Search Deals

Cheapest flight prices on average. 4% potential price decrease (£24 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2026

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonBoise

LGW London Gatwick - BOI Boise Air Term. Gowen Fld

LGWBOI

London Gatwick

Mon 19/10

08:30-22:01

3 stops44h 31m

Boise Air Term. Gowen Fld

Wed 31/12

00:00-08:00

Nonstop0h 00m

£361

LondonBoise

LHR London Heathrow - BOI Boise Air Term. Gowen Fld

LHRBOI

London Heathrow

Tue 20/10

20:50-15:23

3 stops49h 33m

Boise Air Term. Gowen Fld

Wed 31/12

00:00-08:00

Nonstop0h 00m

£370

LondonBoise

LHR London Heathrow - BOI Boise Air Term. Gowen Fld

LHRBOI

London Heathrow

Sat 31/10

10:25-22:58

1 stop18h 33m

Boise Air Term. Gowen Fld

Wed 31/12

00:00-08:00

Nonstop0h 00m

£404

LondonSpokane

LGW London Gatwick - GEG Spokane

LGWGEG

London Gatwick

Sun 13/12

15:35-17:14

3 stops57h 39m

Spokane

Wed 31/12

00:00-09:00

Nonstop0h 00m

£413

LondonBoise

LGW London Gatwick - BOI Boise Air Term. Gowen Fld

LGWBOI

London Gatwick

Wed 21/10

19:40-13:55

2 stops49h 15m

Boise Air Term. Gowen Fld

Wed 31/12

00:00-08:00

Nonstop0h 00m

£420

LondonBoise

LGW London Gatwick - BOI Boise Air Term. Gowen Fld

LGWBOI

London Gatwick

Tue 20/10

18:35-22:57

2 stops35h 22m

Boise Air Term. Gowen Fld

Wed 31/12

00:00-08:00

Nonstop0h 00m

£439

LondonBoise

LGW London Gatwick - BOI Boise Air Term. Gowen Fld

LGWBOI

London Gatwick

Wed 28/10

20:15-22:01

2 stops31h 46m

Boise Air Term. Gowen Fld

Wed 31/12

00:00-08:00

Nonstop0h 00m

£444

LondonSpokane

LHR London Heathrow - GEG Spokane

LHRGEG

London Heathrow

Mon 14/12

14:50-11:42

3 stops28h 52m

Spokane

Wed 31/12

00:00-09:00

Nonstop0h 00m

£445

LondonBoise

LHR London Heathrow - BOI Boise Air Term. Gowen Fld

LHRBOI

London Heathrow

Mon 19/10

06:55-12:28

2 stops36h 33m

Boise Air Term. Gowen Fld

Wed 31/12

00:00-08:00

Nonstop0h 00m

£448

LondonSpokane

LHR London Heathrow - GEG Spokane

LHRGEG

London Heathrow

Sun 13/12

20:50-16:08

3 stops51h 18m

Spokane

Wed 31/12

00:00-09:00

Nonstop0h 00m

£452

Flights are sorted by cheapest return flights first.

Deals found on 2/9

Showing 1-10 of 60 resultsSorted by cheapest first

...

Best time to book a flight from London to Idaho

Have a flexible travel schedule? Discover the best time to fly to Idaho from London with our price prediction graph.

LHR-GEG

LHR-BOI

LGW-GEG

LHR-IDA

LGW-BOI

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from London to Idaho

LON-USID

LHR-GEG

LHR-BOI

LGW-GEG

LHR-IDA

What is the cheapest month to book a flight from London to Idaho?

Currently, April is the cheapest month in which you can book a flight from London to Idaho (average of £627). Flying from London to Idaho in December is currently the most expensive (average of £1,154). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost for a return flight from London to Idaho?

Airfare is typical for this route at the moment.

London to Idaho flights typically cost between £593 and £771 in October.
The cheapest return price found within the last 5 days was £597 on Scandinavian Airlines (3 Oct–10 Oct).

Reviews of airlines servicing Idaho

Get a feel of what it's like to fly with United Airlines,Virgin Atlantic, andLufthansa from London to Idaho by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.4

Good

10,169 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Chris,Aug 2026

MIA - ORD

Had to go through TSA again, already purchased bottle drink. TSA would not let through, United changed gates last minute. This experience bad for everyone. Staff rude, not our fault. Staff from Chicago to Wichita excellent!

United Airlines

7.4

Good

10,169 reviews

United Airlines

7.4

Good

10,169 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Chris,Aug 2026

MIA - ORD

Virgin Atlantic

7.4

Good

696 reviews

United Airlines

7.4

Good

10,169 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Chris,Aug 2026

MIA - ORD

Lufthansa

6.8

Okay

8,225 reviews

United Airlines

7.4

Good

10,169 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Chris,Aug 2026

MIA - ORD

Related info for your journey

How long is the flight from London to Idaho?
Airlines like Air Canada, Alaska Airlines, and United Airlines fly from London to Idaho in about 26h 49m. The time it takes to get you to your destination can typically vary by up to 4h 47m. The distance from London to Idaho is about 4829 mi. Both multi-stop and direct flights can be found to your destination and back.
What are the most popular routes from London to Idaho?
While some choose either London Gatwick - Spokane or London Heathrow - Boise Air Term. Gowen Fld, London Heathrow - Spokane is the most popular route from London to Idaho.
Can I find deals for flights from London to Idaho that include hotel bookings?
Yes. In addition to deals on London to Idaho flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from London to Idaho?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Idaho.
Can I find deals for business class flights from London to Idaho?
Yes. Cheapflights offers flight deals from London to Idaho by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from London to Idaho?
Currently, April is the cheapest month in which you can book a flight from London to Idaho (average of £627). Flying from London to Idaho in December is currently the most expensive (average of £1,154). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top 4 airlines flying from London to Idaho

Airline	Cheapest	Average	Flexibility	On-time
Lufthansa	Cheapest£505	Average£762	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
United Airlines	Cheapest£521	Average£918	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Virgin Atlantic	Cheapest£713	Average£842	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
Alaska Airlines	Cheapest£730	Average£943	FlexibilityNo cancel fee	On-time75%	Search Alaska Airlines flights

Fly with Cheapflights

How does Cheapflights help users find flights from London to Idaho?

Deals for London to Idaho flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from London to Idaho?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from London to Idaho for you. Better yet — we are completely free to use.

Can Cheapflights find flights from London to Idaho with no change fees?

Yes, we can. To see specific flights from London to Idaho with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from London to Idaho become cheaper?

Of course! You can now track prices for flights from London to Idaho and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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Cheap flights from London to Idaho from £361

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 19/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from London to Idaho

Cheapest flights from London to IdahoExplore the most affordable flight options available from London to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 September 2026.

Explore the most affordable flight options available from London to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 September 2026.

Best flights from London to IdahoDiscover carefully curated flight deals from London to Idaho that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 4 September 2026.

Discover carefully curated flight deals from London to Idaho that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 4 September 2026.

Last-minute flights from London to IdahoDiscover last-minute flight deals from London to Idaho. Data last updated 4 September 2026 and is based on user searches.

Discover last-minute flight deals from London to Idaho. Data last updated 4 September 2026 and is based on user searches.

One-way flights from London to IdahoSearch for one-way flight options from London to Idaho. Find affordable one-way fares based on user searches. Data last updated 4 September 2026.

Search for one-way flight options from London to Idaho. Find affordable one-way fares based on user searches. Data last updated 4 September 2026.

Find flight deals from London to Idaho

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from London to Idaho that are best for you.

Best time to book a flight from London to Idaho

Have a flexible travel schedule? Discover the best time to fly to Idaho from London with our price prediction graph.

Cheapflights Insights

What is the cheapest month to book a flight from London to Idaho?

How much does it cost for a return flight from London to Idaho?

Airfare is typical for this route at the moment.

London to Idaho flights typically cost between £593 and £771 in October.The cheapest return price found within the last 5 days was £597 on Scandinavian Airlines (3 Oct–10 Oct).

Reviews of airlines servicing Idaho

Get a feel of what it's like to fly with United Airlines,Virgin Atlantic, andLufthansa from London to Idaho by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

How long is the flight from London to Idaho?

What are the most popular routes from London to Idaho?

Can I find deals for flights from London to Idaho that include hotel bookings?

How can I find direct flights from London to Idaho?

Can I find deals for business class flights from London to Idaho?

What is the cheapest month to book a flight from London to Idaho?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for London to Idaho

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Idaho by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to United States

Book a non-stop flight to one of these other cities located in United States.

Search flights from London to Idaho by cabin class

Find flights from London to Idaho, based on your preferred cabin class, be it economy, premium economy, business, or first class.

London and Idaho flights

Browse other London and Idaho flight options. Last updated on 4 September 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

London to Idaho flights

Consider these flights travelling from London to Idaho.

Top 4 airlines flying from London to Idaho

Fly with Cheapflights

How does Cheapflights help users find flights from London to Idaho?

Why should you use Cheapflights to find cheap flight tickets from London to Idaho?

Can Cheapflights find flights from London to Idaho with no change fees?

Can Cheapflights notify me if prices for flights from London to Idaho become cheaper?

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Book with Flexibility

Travel Smart

Cheapest flights from London to Idaho
Explore the most affordable flight options available from London to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 September 2026.

Best flights from London to Idaho
Discover carefully curated flight deals from London to Idaho that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 4 September 2026.

Last-minute flights from London to Idaho
Discover last-minute flight deals from London to Idaho. Data last updated 4 September 2026 and is based on user searches.

One-way flights from London to Idaho
Search for one-way flight options from London to Idaho. Find affordable one-way fares based on user searches. Data last updated 4 September 2026.

London to Idaho flights typically cost between £593 and £771 in October.
The cheapest return price found within the last 5 days was £597 on Scandinavian Airlines (3 Oct–10 Oct).