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

One-way options have recently been found by users for as low as £380 on Scandinavian Airlines. Other airlines that offer cheap prices include KLM from £387 and Air Canada from £391 one-way.

What are the most popular routes from Idaho to London Heathrow Airport?

The most popular route from Idaho to London Heathrow Airport is Boise Air Term. Gowen Fld - London Heathrow. You may also consider Spokane - London Heathrow or Idaho Falls Fanning Field - London Heathrow.

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

To save on the cost of your flight from Idaho to London Heathrow Airport, book at least 49 days before your planned departure. Booking around this time can save you about 180% on the cost of this flight compared to booking a flight leaving this week. We have found prices from £594 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as £1,375.

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

December is one of the best times of the year to fly to London Heathrow Airport from Idaho. Prices for December average £766 per person but you can even find prices for as low as £545. The most expensive prices can be found in the month of June. Opting for a December flight can save you 65% on your journey compared to booking in June

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

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

How can I find direct flights from Idaho to Heathrow?

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

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

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

£236+ Flights from Idaho to London Heathrow Airport

Cheap flight deals from Idaho to Heathrow

Round-trip from	£578
One-way from	£236

Scandinavian Airlines
3/3-11/3
4 total stops
63h 19m total
Idaho to London

Search Deals

9/2
2 total stops
43h 11m total
Idaho to London

Search Deals

Find flight deals from Idaho to Heathrow

Cheapest flights from Idaho to Heathrow
Explore the most affordable flight options available from Idaho to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 January 2025.

Tue 23/913:00BOI - LHR

2 stops25h 40mScandinavian Airlines

Wed 1/1006:40LHR - BOI

2 stops21h 24mScandinavian Airlines

Deal found 16/1£562

Tue 23/909:00BOI - LHR

2 stops25h 40mMultiple Airlines

Wed 1/1007:05LHR - BOI

3 stops20h 59mMultiple Airlines

Deal found 16/1£565

Tue 4/207:02GEG - LHR

2 stops27h 28mMultiple Airlines

Tue 11/206:40LHR - GEG

2 stops23h 51mMultiple Airlines

Deal found 16/1£584

Tue 4/207:02GEG - LHR

1 stop20h 58mUnited Airlines

Tue 11/215:00LHR - GEG

2 stops32h 12mUnited Airlines

Deal found 16/1£586

Mon 3/307:05JAC - LHR

1 stop19h 55mKLM

Mon 10/317:50LHR - JAC

2 stops28h 57mKLM

Deal found 17/1£587

Sun 23/313:20BOI - LHR

1 stop18h 10mUnited Airlines

Tue 8/414:05LHR - BOI

2 stops34h 47mUnited Airlines

Deal found 16/1£588

Sun 23/305:00BOI - LHR

2 stops20h 10mAir Canada

Tue 8/417:40LHR - BOI

2 stops31h 12mAir Canada

Deal found 16/1£593

Mon 3/210:45JAC - LHR

2 stops17h 05mUnited Airlines

Tue 11/206:30LHR - JAC

2 stops21h 39mUnited Airlines

Deal found 16/1£597

Tue 25/210:00GEG - LHR

2 stops17h 10mDelta

Wed 26/306:30LHR - GEG

2 stops21h 35mDelta

Deal found 17/1£598

Tue 15/413:40GEG - LHR

2 stops32h 50mAir Canada

Fri 9/514:05LHR - GEG

2 stops54h 35mAir Canada

Deal found 16/1£600

Sun 2/206:00GEG - LHR

1 stop17h 05mVirgin Atlantic

Tue 18/209:10LHR - GEG

1 stop21h 42mVirgin Atlantic

Deal found 15/1£601

Tue 15/415:05GEG - LHR

1 stop14h 25mKLM

Fri 9/506:30LHR - GEG

2 stops16h 13mKLM

Deal found 16/1£601

Best flights from Idaho to Heathrow
Discover carefully curated flight deals from Idaho to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 17 January 2025.

Mon 3/307:15BOI - LHR

2 stops27h 25mScandinavian Airlines

Tue 11/317:00LHR - BOI

2 stops35h 54mScandinavian Airlines

Deal found 17/1£578

Tue 4/207:02GEG - LHR

2 stops27h 28mMultiple Airlines

Tue 11/206:40LHR - GEG

2 stops23h 51mMultiple Airlines

Deal found 16/1£584

Tue 4/207:02GEG - LHR

1 stop20h 58mUnited Airlines

Tue 11/215:00LHR - GEG

2 stops32h 12mUnited Airlines

Deal found 16/1£586

Mon 3/307:05JAC - LHR

1 stop19h 55mKLM

Mon 10/317:50LHR - JAC

2 stops28h 57mKLM

Deal found 17/1£587

Sun 23/305:00BOI - LHR

2 stops20h 10mAir Canada

Tue 8/417:40LHR - BOI

2 stops31h 12mAir Canada

Deal found 16/1£593

Mon 3/307:05BOI - LHR

1 stop17h 15mFinnair

Tue 11/309:25LHR - BOI

1 stop18h 30mFinnair

Deal found 17/1£597

Tue 25/210:00GEG - LHR

2 stops17h 10mDelta

Wed 26/306:30LHR - GEG

2 stops21h 35mDelta

Deal found 17/1£598

Sun 2/206:00GEG - LHR

1 stop17h 05mVirgin Atlantic

Tue 18/209:10LHR - GEG

1 stop21h 42mVirgin Atlantic

Deal found 15/1£601

Sun 23/307:05BOI - LHR

1 stop18h 15mAmerican Airlines

Tue 8/411:15LHR - BOI

1 stop19h 20mAmerican Airlines

Deal found 16/1£607

Mon 14/413:41BOI - LHR

1 stop33h 44mIberia

Wed 30/412:00LHR - BOI

1 stop17h 12mIberia

Deal found 16/1£612

Thu 8/513:40GEG - LHR

2 stops17h 00mLufthansa

Sat 17/509:30LHR - GEG

2 stops19h 25mLufthansa

Deal found 16/1£741

Mon 21/417:00BOI - LHR

2 stops20h 20mIcelandair

Fri 25/413:05LHR - BOI

2 stops16h 34mIcelandair

Deal found 16/1£776

Last-minute flights from Idaho to Heathrow
Discover last-minute flight deals from Idaho to Heathrow. Data last updated 17 January 2025 and is based on user searches.

Wed 22/112:55IDA - LHR

1 stop13h 45mMultiple Airlines

Wed 29/114:30LHR - IDA

1 stop14h 47mMultiple Airlines

Deal found 17/1£1,391

Thu 23/107:00BOI - LHR

1 stop16h 20mFinnair

Sun 26/110:40LHR - BOI

1 stop18h 12mFinnair

Deal found 16/1£678

Thu 23/113:39BOI - LHR

1 stop15h 01mKLM

Sun 26/106:30LHR - BOI

2 stops18h 59mKLM

Deal found 16/1£692

Thu 23/105:45BOI - LHR

2 stops19h 10mDelta

Sun 26/106:30LHR - BOI

2 stops20h 45mDelta

Deal found 16/1£695

Thu 23/107:20BOI - LHR

2 stops27h 20mMultiple Airlines

Sun 26/106:40LHR - BOI

3 stops22h 41mMultiple Airlines

Deal found 16/1£1,501

Mon 27/113:10IDA - LHR

1 stop13h 50mKLM

Mon 3/217:50LHR - IDA

2 stops31h 28mKLM

Deal found 16/1£625

Mon 27/114:28IDA - LHR

2 stops23h 07mUnited Airlines

Mon 3/207:30LHR - IDA

2 stops20h 38mUnited Airlines

Deal found 16/1£638

Mon 27/105:30IDA - LHR

1 stop24h 50mAmerican Airlines

Mon 3/214:30LHR - IDA

1 stop14h 47mAmerican Airlines

Deal found 15/1£650

Sun 2/206:00GEG - LHR

1 stop17h 05mVirgin Atlantic

Tue 18/209:10LHR - GEG

1 stop21h 42mVirgin Atlantic

Deal found 15/1£601

Mon 3/207:05JAC - LHR

1 stop19h 55mKLM

Tue 11/220:25LHR - JAC

2 stops27h 14mKLM

Deal found 16/1£594

Mon 3/210:45JAC - LHR

2 stops17h 05mUnited Airlines

Tue 11/206:30LHR - JAC

2 stops21h 39mUnited Airlines

Deal found 16/1£597

Tue 4/207:02GEG - LHR

2 stops27h 28mMultiple Airlines

Tue 11/206:40LHR - GEG

2 stops23h 51mMultiple Airlines

Deal found 16/1£584

One-way flights from Idaho to Heathrow
Search for one-way flight options from Idaho to Heathrow. Find affordable one-way fares based on user searches. Data last updated 17 January 2025.

Sun 9/209:39GEG - LHR

2 stops43h 11mMultiple Airlines

Deal found 16/1£236

Mon 14/421:34IDA - LHR

2 stops32h 16mMultiple Airlines

Deal found 15/1£338

Mon 26/513:00GEG - LHR

2 stops19h 00mScandinavian Airlines

Deal found 17/1£380

Sun 9/213:10GEG - LHR

1 stop14h 30mKLM

Deal found 16/1£387

Sat 22/206:00GEG - LHR

2 stops44h 10mAir Canada

Deal found 15/1£391

Sat 15/312:50BOI - LHR

1 stop36h 35mUnited Airlines

Deal found 17/1£397

Mon 14/416:30IDA - LHR

1 stop34h 10mUnited Airlines

Deal found 15/1£405

Mon 26/511:15GEG - LHR

2 stops16h 50mWestJet

Deal found 16/1£525

Tue 10/605:40BOI - LHR

2 stops23h 25mWestJet

Deal found 15/1£597

Tue 10/611:46BOI - LHR

1 stop14h 14mFinnair

Deal found 15/1£718

Tue 10/610:39BOI - LHR

3 stops18h 11mAir Canada

Deal found 15/1£736

Sun 9/207:02GEG - LHR

1 stop16h 23mLufthansa

Deal found 16/1£950

Find flights from Idaho to Heathrow within your budget

Fly from

Fly to

Route

Depart

Return

Price

BoiseLondon

BOI - LHR

BOILHR

Boise Air Term. Gowen Fld

Mon 3/3

07:15-17:40

2 stops27h 25m

London Heathrow

Tue 11/3

17:00-22:54

2 stops35h 54m

£578

SpokaneLondon

GEG - LHR

GEGLHR

Spokane

Tue 4/2

07:02-18:30

2 stops27h 28m

London Heathrow

Tue 11/2

06:40-22:31

2 stops23h 51m

£584

SpokaneLondon

GEG - LHR

GEGLHR

Spokane

Tue 4/2

07:02-12:00

1 stop20h 58m

London Heathrow

Tue 11/2

15:00-15:12

2 stops32h 12m

£586

JacksonLondon

JAC - LHR

JACLHR

Jackson Hole

Mon 3/3

07:05-10:00

1 stop19h 55m

London Heathrow

Mon 10/3

17:50-16:47

2 stops28h 57m

£587

BoiseLondon

BOI - LHR

BOILHR

Boise Air Term. Gowen Fld

Sun 23/3

13:20-13:30

1 stop18h 10m

London Heathrow

Tue 8/4

14:05-17:52

2 stops34h 47m

£588

BoiseLondon

BOI - LHR

BOILHR

Boise Air Term. Gowen Fld

Sun 23/3

05:00-07:10

2 stops20h 10m

London Heathrow

Tue 8/4

17:40-17:52

2 stops31h 12m

£593

BoiseLondon

BOI - LHR

BOILHR

Boise Air Term. Gowen Fld

Wed 16/4

14:00-13:20

2 stops16h 20m

London Heathrow

Wed 30/4

07:25-17:52

2 stops17h 27m

£596

BoiseLondon

BOI - LHR

BOILHR

Boise Air Term. Gowen Fld

Mon 3/3

07:05-07:20

1 stop17h 15m

London Heathrow

Tue 11/3

09:25-21:55

1 stop18h 30m

£597

JacksonLondon

JAC - LHR

JACLHR

Jackson Hole

Mon 3/2

10:45-10:50

2 stops17h 05m

London Heathrow

Tue 11/2

06:30-21:09

2 stops21h 39m

£597

SpokaneLondon

GEG - LHR

GEGLHR

Spokane

Tue 25/2

10:00-11:10

2 stops17h 10m

London Heathrow

Wed 26/3

06:30-21:05

2 stops21h 35m

£598

Flights are sorted by cheapest return flights first.

Deals found on 16/1

Showing 1-10 of 44 results

...

Best time to book a flight from Idaho to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Idaho 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 Idaho to Heathrow

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

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

Currently, January is the cheapest month in which you can book a flight from Idaho to London Heathrow Airport (average of £112). Flying from Idaho to London Heathrow Airport in August is currently the most expensive (average of £161). 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 ID to LHR?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Idaho to London Heathrow Airport as you normally would.

Rainfall in Heathrow by month

In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

Temperature in Heathrow by month

If weather is an important factor for your trip to London Heathrow Airport, 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 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

Reviews of airlines servicing Heathrow

Get a feel of what it's like to fly with Virgin Atlantic, Scandinavian Airlines and United Airlines from Idaho to London by reading reviews from past customers. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very Good

8,513 reviews

Check prices

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta

8.0

Very Good

8,513 reviews

Delta

8.0

Very Good

8,513 reviews

Check prices

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Alaska Airlines

8.0

Very Good

9,684 reviews

Delta

8.0

Very Good

8,513 reviews

Check prices

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM

7.8

Good

1,339 reviews

Delta

8.0

Very Good

8,513 reviews

Check prices

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Finnair

7.6

Good

1,285 reviews

Delta

8.0

Very Good

8,513 reviews

Check prices

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

SWISS

7.5

Good

1,598 reviews

Delta

8.0

Very Good

8,513 reviews

Check prices

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

What are the cheapest airlines to fly from Idaho to London Heathrow Airport one-way?
One-way options have recently been found by users for as low as £380 on Scandinavian Airlines. Other airlines that offer cheap prices include KLM from £387 and Air Canada from £391 one-way.
What are the most popular routes from Idaho to London Heathrow Airport?
The most popular route from Idaho to London Heathrow Airport is Boise Air Term. Gowen Fld - London Heathrow. You may also consider Spokane - London Heathrow or Idaho Falls Fanning Field - London Heathrow.
Can I find deals for flights from Idaho to Heathrow that include hotel bookings?
Yes. In addition to deals on Idaho to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Idaho to Heathrow?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Idaho to Heathrow.
Can I find deals for business class flights from Idaho to Heathrow?
Yes. Cheapflights offers flight deals from Idaho to Heathrow 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 Idaho to London Heathrow Airport?
Currently, January is the cheapest month in which you can book a flight from Idaho to London Heathrow Airport (average of £112). Flying from Idaho to London Heathrow Airport in August is currently the most expensive (average of £161). 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

Deal

Hounslow

Gatwick

Milton Keynes

Croydon

Luton

Slough

Ilford

Hayes

Eastbourne

Northampton

Swindon

Maidstone

Winchester

Southend-on-Sea

Wembley

Ipswich

Watford

Crawley

Southall

Browse thousands of different options on Cheapflights for your next trip

Top airline flying from Idaho to Heathrow

Airline	Cheapest	Average	Flexibility	On-time
Virgin Atlantic	Cheapest£497	Average£982	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights

Fly with Cheapflights

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

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Idaho to Heathrow. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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

Cheapflights helps you find that perfect flight to Heathrow from Idaho by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

Need flexible booking options for your flight to Heathrow from Idaho? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Not ready to book yet? You can track prices for flights from Idaho to Heathrow on Cheapflights with our Price Alert feature and get notified when better prices are available.

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Cheapflights is completely free to use, so you can start saving the moment you arrive.

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Our users can plan ahead with confidence and find flights with no change fees

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Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

Cheap flights from Idaho to London Heathrow Airport from £236

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 9/2. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Idaho to Heathrow

Round-trip from

One-way from

Find flight deals from Idaho to Heathrow

Cheapest flights from Idaho to HeathrowExplore the most affordable flight options available from Idaho to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 January 2025.

Explore the most affordable flight options available from Idaho to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 January 2025.

Find flights from Idaho to Heathrow within your budget

Best time to book a flight from Idaho to Heathrow

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

Travel insights for flights from Idaho to Heathrow

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

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

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

Find hourly flight availability from Idaho to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 17 January 2025.

Rainfall in Heathrow by month

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

Temperature in Heathrow by month

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

Reviews of airlines servicing Heathrow

Related info for your journey

Find useful and relevant information for your journey from Idaho to Heathrow. 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 Idaho to London Heathrow Airport one-way?

What are the most popular routes from Idaho to London Heathrow Airport?

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

How can I find direct flights from Idaho to Heathrow?

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

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

Travelling to a place near 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 Idaho to Heathrow

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

Top airline flying from Idaho to Heathrow

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 Idaho to Heathrow?

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

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

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

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Idaho to Heathrow
Explore the most affordable flight options available from Idaho to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 January 2025.