What are the cheapest airlines to fly from London to Idaho one-way?

£659 is the cheapest one-way deal found within the past few days, from Lufthansa. You may also be able to find cheap deals on WestJet and Icelandair, with prices starting from £672 and £711, respectively.

What are the most popular routes from London to Idaho?

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

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

Consider Finnair, British Airways or Icelandair when booking your flight. These represent the most popular airlines when flying from London to Idaho.

How far in advance should I book a flight from London to Idaho?

Find a great deal and save up to 42% by booking at least 12 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from London to Idaho within the next two weeks, with the cheapest ticket starting at £615.

What is the cheapest month to fly from London to Idaho?

The best pricing can be found in the month of November. Prices to Idaho from London average £760. You can even find prices in November for less than £760, as users have found deals to Idaho from as low as £545. The month of August appears to be one of the more expensive times to travel to Idaho from London. Flying in the targeted month can save you up to 36%.

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.

£473+ Flights from London to Idaho

Cheap flight deals from London to Idaho

Round-trip from	£543
One-way from	£473
Popular in	August
Cheapest in	November
Average price	£648

Lufthansa
5/3-12/3
4 total stops
35h 28m total
London to Idaho

Search Deals

22/5
1 total stop
19h 07m total
London to Idaho

Search Deals

Highest demand for flights based on searches. 15% potential increase in price (£109 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (£21 potential savings vs. average return price).

Search Deals

Average for round-trip flights in February 2025

Search Deals

Find flight deals from London to Idaho

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 5 February 2025.

Wed 5/311:10LHR - BOI

2 stops19h 03mLufthansa

Wed 12/308:30BOI - LHR

2 stops16h 25mLufthansa

Deal found 4/2£543

Tue 11/308:30LHR - GEG

2 stops22h 14mLufthansa

Tue 25/313:46GEG - LHR

1 stop12h 54mLufthansa

Deal found 4/2£547

Tue 11/311:10LHR - GEG

2 stops32h 33mUnited Airlines

Tue 25/305:00GEG - LHR

2 stops19h 55mUnited Airlines

Deal found 4/2£552

Tue 4/311:10LHR - BOI

2 stops19h 03mUnited Airlines

Tue 11/308:30BOI - LHR

1 stop17h 25mUnited Airlines

Deal found 3/2£552

Mon 17/311:35LHR - BOI

1 stop15h 54mMultiple Airlines

Mon 31/310:36BOI - LHR

1 stop16h 04mMultiple Airlines

Deal found 4/2£569

Wed 5/311:55LGW - IDA

2 stops17h 41mMultiple Airlines

Wed 12/308:00IDA - LGW

2 stops20h 55mMultiple Airlines

Deal found 4/2£571

Thu 6/310:05LHR - GEG

1 stop21h 39mMultiple Airlines

Thu 13/306:00GEG - LHR

1 stop18h 25mMultiple Airlines

Deal found 4/2£599

Wed 5/310:00LCY - BOI

2 stops18h 29mMultiple Airlines

Wed 12/308:30BOI - LCY

2 stops18h 55mMultiple Airlines

Deal found 4/2£600

Wed 5/312:15LHR - IDA

2 stops17h 21mMultiple Airlines

Wed 12/308:00IDA - LHR

2 stops20h 50mMultiple Airlines

Deal found 4/2£618

Mon 15/916:25LHR - JAC

1 stop26h 32mFinnair

Mon 29/914:50JAC - LHR

1 stop18h 15mFinnair

Deal found 4/2£629

Wed 5/311:55LGW - BOI

2 stops19h 04mMultiple Airlines

Wed 12/309:40BOI - LGW

2 stops19h 15mMultiple Airlines

Deal found 4/2£659

Sat 4/1015:40LGW - GEG

2 stops16h 19mMultiple Airlines

Sat 18/1011:35GEG - LGW

2 stops19h 05mMultiple Airlines

Deal found 4/2£670

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 5 February 2025.

Wed 5/311:10LHR - BOI

2 stops19h 03mLufthansa

Wed 12/308:30BOI - LHR

2 stops16h 25mLufthansa

Deal found 4/2£543

Tue 11/311:10LHR - GEG

2 stops32h 33mUnited Airlines

Tue 25/305:00GEG - LHR

2 stops19h 55mUnited Airlines

Deal found 4/2£552

Mon 17/311:35LHR - BOI

1 stop15h 54mMultiple Airlines

Mon 31/310:36BOI - LHR

1 stop16h 04mMultiple Airlines

Deal found 4/2£569

Tue 18/216:55LHR - JAC

1 stop27h 05mFinnair

Sat 1/312:37JAC - LHR

1 stop12h 38mFinnair

Deal found 4/2£634

Wed 5/310:45LHR - SUN

1 stop18h 54mVirgin Atlantic

Wed 12/315:29SUN - LHR

1 stop12h 31mVirgin Atlantic

Deal found 4/2£674

Sat 22/206:40LHR - BOI

2 stops22h 41mScandinavian Airlines

Mon 10/307:15BOI - LHR

2 stops26h 45mScandinavian Airlines

Deal found 4/2£686

Fri 28/208:20LHR - BOI

1 stop20h 30mIberia

Sun 9/318:58BOI - LHR

1 stop15h 02mIberia

Deal found 4/2£711

Sat 22/206:20LHR - BOI

2 stops23h 01mDelta

Mon 10/307:55BOI - LHR

1 stop21h 15mDelta

Deal found 4/2£767

Thu 6/311:55LGW - GEG

2 stops16h 05mIcelandair

Thu 13/310:51GEG - LGW

2 stops17h 04mIcelandair

Deal found 4/2£811

Tue 11/308:30LHR - GEG

2 stops22h 14mLufthansa

Tue 25/313:46GEG - LHR

1 stop12h 54mLufthansa

Deal found 4/2£547

Tue 4/311:10LHR - BOI

2 stops19h 03mUnited Airlines

Tue 11/307:00BOI - LHR

2 stops17h 20mUnited Airlines

Deal found 3/2£552

Wed 5/311:55LGW - IDA

2 stops17h 41mMultiple Airlines

Wed 12/308:00IDA - LGW

2 stops20h 55mMultiple Airlines

Deal found 4/2£571

Last-minute flights from London to Idaho
Discover last-minute flight deals from London to Idaho. Data last updated 5 February 2025 and is based on user searches.

Tue 18/216:55LHR - JAC

1 stop27h 05mFinnair

Sat 1/312:37JAC - LHR

1 stop12h 38mFinnair

Deal found 4/2£634

Tue 4/311:10LHR - BOI

2 stops19h 03mUnited Airlines

Tue 11/308:30BOI - LHR

1 stop17h 25mUnited Airlines

Deal found 3/2£552

Wed 5/311:10LHR - BOI

2 stops19h 03mLufthansa

Wed 12/307:40BOI - LHR

1 stop17h 45mLufthansa

Deal found 4/2£543

Wed 5/311:55LGW - IDA

2 stops17h 41mMultiple Airlines

Wed 12/308:00IDA - LGW

2 stops20h 55mMultiple Airlines

Deal found 4/2£571

Wed 5/310:00LCY - BOI

2 stops18h 29mMultiple Airlines

Wed 12/308:30BOI - LCY

2 stops18h 55mMultiple Airlines

Deal found 4/2£600

Wed 5/312:15LHR - IDA

2 stops17h 21mMultiple Airlines

Wed 12/308:00IDA - LHR

2 stops20h 50mMultiple Airlines

Deal found 4/2£618

Wed 5/311:55LGW - BOI

2 stops19h 04mMultiple Airlines

Wed 12/309:40BOI - LGW

2 stops19h 15mMultiple Airlines

Deal found 4/2£659

Wed 5/310:45LHR - SUN

1 stop18h 54mVirgin Atlantic

Wed 12/315:29SUN - LHR

1 stop12h 31mVirgin Atlantic

Deal found 4/2£674

Thu 6/310:05LHR - GEG

1 stop21h 39mMultiple Airlines

Thu 13/306:00GEG - LHR

1 stop18h 25mMultiple Airlines

Deal found 4/2£599

Tue 11/308:30LHR - GEG

2 stops22h 14mLufthansa

Tue 25/313:46GEG - LHR

1 stop12h 54mLufthansa

Deal found 4/2£547

Tue 11/311:10LHR - GEG

2 stops32h 33mUnited Airlines

Tue 25/305:00GEG - LHR

2 stops19h 55mUnited Airlines

Deal found 4/2£552

Mon 17/311:35LHR - BOI

1 stop15h 54mMultiple Airlines

Mon 31/310:36BOI - LHR

1 stop16h 04mMultiple Airlines

Deal found 4/2£569

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 5 February 2025.

Thu 22/510:45LGW - BOI

1 stop19h 07mMultiple Airlines

Deal found 4/2£473

Tue 11/215:15LHR - BOI

3 stops52h 48mMultiple Airlines

Deal found 4/2£567

Sat 3/511:25LHR - GEG

1 stop17h 30mLufthansa

Deal found 4/2£659

Sat 21/611:25LHR - BOI

1 stop16h 51mLufthansa

Deal found 4/2£661

Sat 21/614:10LHR - BOI

2 stops16h 54mWestJet

Deal found 4/2£672

Thu 22/513:00LGW - BOI

2 stops33h 56mIcelandair

Deal found 4/2£711

Tue 11/208:20LHR - BOI

1 stop20h 32mFinnair

Deal found 4/2£763

Thu 22/508:45LCY - BOI

2 stops20h 56mMultiple Airlines

Deal found 4/2£801

Sat 3/515:40LGW - GEG

2 stops40h 19mIcelandair

Deal found 5/2£860

Sat 17/506:30LHR - SUN

2 stops22h 21mVirgin Atlantic

Deal found 4/2£1,309

Sat 21/612:10LCY - BOI

2 stops19h 02mDelta

Deal found 4/2£1,317

Sat 17/512:15LHR - SUN

3 stops56h 19mUnited Airlines

Deal found 4/2£1,448

Find flights from London to Idaho within your budget

Fly from

Fly to

Route

Depart

Return

Price

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Wed 5/3

11:10-23:13

2 stops19h 03m

Boise Air Term. Gowen Fld

Wed 12/3

08:30-06:55

2 stops16h 25m

£543

LondonSpokane

LHR - GEG

LHRGEG

London Heathrow

Tue 11/3

08:30-23:44

2 stops22h 14m

Spokane

Tue 25/3

13:46-09:40

1 stop12h 54m

£547

LondonSpokane

LHR - GEG

LHRGEG

London Heathrow

Tue 11/3

11:10-12:43

2 stops32h 33m

Spokane

Tue 25/3

05:00-07:55

2 stops19h 55m

£552

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Tue 4/3

11:10-23:13

2 stops19h 03m

Boise Air Term. Gowen Fld

Tue 11/3

07:00-06:20

2 stops17h 20m

£552

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Mon 17/3

11:35-21:29

1 stop15h 54m

Boise Air Term. Gowen Fld

Mon 31/3

10:36-09:40

1 stop16h 04m

£569

LondonIdaho Falls

LGW - IDA

LGWIDA

London Gatwick

Wed 5/3

11:55-22:36

2 stops17h 41m

Idaho Falls Fanning Field

Wed 12/3

08:00-10:55

2 stops20h 55m

£571

LondonSpokane

LHR - GEG

LHRGEG

London Heathrow

Thu 6/3

10:05-23:44

1 stop21h 39m

Spokane

Thu 13/3

06:00-07:25

1 stop18h 25m

£599

LondonBoise

LCY - BOI

LCYBOI

London City

Wed 5/3

10:00-21:29

2 stops18h 29m

Boise Air Term. Gowen Fld

Wed 12/3

08:30-09:25

2 stops18h 55m

£600

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Wed 5/3

12:15-22:36

2 stops17h 21m

Idaho Falls Fanning Field

Wed 12/3

08:00-10:50

2 stops20h 50m

£618

LondonJackson

LHR - JAC

LHRJAC

London Heathrow

Tue 18/2

16:55-13:00

1 stop27h 05m

Jackson Hole

Sat 1/3

12:37-08:15

1 stop12h 38m

£634

Flights are sorted by cheapest return flights first.

Deals found on 4/2

Showing 1-10 of 43 results

...

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.

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.

Travel insights for flights from London to Idaho

Get recent, data-driven insights about flights from London to Idaho including ideal travel times, pricing trends, and more.

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

Currently, October is the cheapest month in which you can book a flight from London to Idaho (average of £754). Flying from London to Idaho in August is currently the most expensive (average of £1,152). 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.

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.

Rainfall in Idaho by month

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.

Temperature in Idaho by month

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).

Reviews of airlines servicing Idaho

See what other customers who have flown with Delta, KLM and Finnair from London to Idaho have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very Good

8,408 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta

8.0

Very Good

8,408 reviews

Delta

8.0

Very Good

8,408 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

KLM

7.8

Good

1,334 reviews

Delta

8.0

Very Good

8,408 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Finnair

7.6

Good

1,284 reviews

Delta

8.0

Very Good

8,408 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

SWISS

7.5

Good

1,582 reviews

Delta

8.0

Very Good

8,408 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Virgin Atlantic

7.5

Good

658 reviews

Delta

8.0

Very Good

8,408 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

What are the cheapest airlines to fly from London to Idaho one-way?
£659 is the cheapest one-way deal found within the past few days, from Lufthansa. You may also be able to find cheap deals on WestJet and Icelandair, with prices starting from £672 and £711, respectively.
What are the most popular routes from London to Idaho?
While some choose either London Gatwick - Boise Air Term. Gowen Fld or London Heathrow - Jackson Hole, London Heathrow - Boise Air Term. Gowen Fld 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, October is the cheapest month in which you can book a flight from London to Idaho (average of £754). Flying from London to Idaho in August is currently the most expensive (average of £1,152). 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

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for London to Idaho

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London City to Los Angeles flights

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Heathrow to Hobby flights

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Gatwick to O'Hare Intl flights

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Heathrow to Midway flights

London City to O'Hare Intl flights

Gatwick to San Francisco flights

London City to Las Vegas flights

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Edinburgh to Newark flights

Manchester to LaGuardia flights

Direct flights to United States

Top 7 airlines flying from London to Idaho

Airline	Cheapest	Average	Flexibility	On-time
Finnair	Cheapest£528	Average£701	FlexibilityNo cancel fee	On-time76%	Search Finnair flights
United Airlines	Cheapest£570	Average£861	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
KLM	Cheapest£572	Average£989	FlexibilityNo cancel fee	On-time75%	Search KLM flights
Lufthansa	Cheapest£578	Average£647	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
Virgin Atlantic	Cheapest£618	Average£825	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
Icelandair	Cheapest£672	Average£872	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
British Airways	Cheapest£722	Average£925	FlexibilityNo cancel fee	On-time70%	Search British Airways 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 £473

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 22/5. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from London to Idaho

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find 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 5 February 2025.

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 5 February 2025.

Find flights from London to Idaho within your budget

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.

Travel insights for flights from London to Idaho

Get recent, data-driven insights about flights from London to Idaho including ideal travel times, pricing trends, and more.

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

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

Find hourly flight availability from London to Idaho. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 5 February 2025.

Rainfall in Idaho by month

Plan your trip to Idaho by taking into account the average rainfall totals by month.

Temperature in Idaho by month

Plan your trip to Idaho by taking into account the average temperature totals by month.

Reviews of airlines servicing Idaho

Get insights into the airlines that provide service to Idaho. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Idaho. Reviews last updated 5 February 2025.

See what other customers who have flown with Delta, KLM and Finnair from London to Idaho have to say. 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

Find useful and relevant information for your journey from London to Idaho. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What are the cheapest airlines to fly from London to Idaho one-way?

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.

Top 7 airlines flying from London to Idaho

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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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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 5 February 2025.