How long is the flight from London Heathrow Airport to Idaho?

For as low as £596, United Airlines can have you in Idaho from London Heathrow Airport in 15h 09m. Airlines will cover a distance of 4705 mi. Both multi-stop and direct flights can be found to your destination and back.

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

For one-way options, check prices for Lufthansa. According to our data, you can fly for as low as £457. Users have also found prices from £491 and £553 on Delta and Finnair, respectively.

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 Heathrow Airport to Idaho?

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

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

When booking a flight from London Heathrow Airport to Idaho, you may want to consider flying on Finnair, KLM or Lufthansa as they are the most popular for this route.

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

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

How can I find direct flights from Heathrow to Idaho?

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

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

Yes. Cheapflights offers flight deals from Heathrow 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.

£418+ Flights from London Heathrow Airport to Idaho

Q: How much does it cost for a return flight from London Heathrow Airport to Idaho?

Airfare is below average for this route at the moment. London Heathrow Airport to Idaho flights typically cost between £563 and £649 in October. The cheapest return flight price found within the last 3 days was £487 on Multiple Airlines (31 Oct-10 Nov).

Cheap flight deals from Heathrow to Idaho

Round-trip from	£464
One-way from	£418
Popular in	July
Cheapest in	February
Average price	£599

United Airlines
10/3-17/3
3 total stops
52h 29m total
London to Idaho

Search Deals

2/12
2 total stops
27h 39m total
London to Idaho

Search Deals

Highest demand for flights based on searches. 13% potential increase in price (£81 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (£15 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2025

Search Deals

Find flight deals from Heathrow to Idaho

Cheapest flights from Heathrow to Idaho
Explore the most affordable flight options available from Heathrow to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2025.

Thu 30/1006:35LHR - GEG

2 stops37h 10mUnited Airlines

Thu 6/1105:10GEG - LHR

1 stop20h 30mUnited Airlines

Deal found 15/9£463

Thu 30/1011:35LHR - GEG

1 stop16h 10mMultiple Airlines

Thu 6/1112:45GEG - LHR

1 stop34h 40mMultiple Airlines

Deal found 15/9£480

Sun 5/1010:35LHR - GEG

1 stop20h 40mMultiple Airlines

Fri 17/1007:15GEG - LHR

1 stop16h 10mMultiple Airlines

Deal found 16/9£481

Sat 1/1111:35LHR - GEG

1 stop16h 10mLufthansa

Sat 8/1106:00GEG - LHR

1 stop17h 25mLufthansa

Deal found 17/9£483

Fri 31/1011:40LHR - BOI

1 stop16h 28mMultiple Airlines

Mon 10/1108:41BOI - LHR

1 stop18h 59mMultiple Airlines

Deal found 15/9£487

Sun 5/1012:20LHR - GEG

1 stop18h 55mUnited Airlines

Fri 17/1005:05GEG - LHR

2 stops20h 15mUnited Airlines

Deal found 16/9£487

Sat 1/1111:35LHR - GEG

1 stop16h 10mUnited Airlines

Sat 8/1112:45GEG - LHR

1 stop15h 15mUnited Airlines

Deal found 17/9£489

Tue 7/1011:15LHR - BOI

2 stops18h 50mMultiple Airlines

Tue 14/1015:37BOI - LHR

1 stop17h 03mMultiple Airlines

Deal found 15/9£493

Fri 31/1006:35LHR - BOI

2 stops45h 01mLufthansa

Fri 7/1114:31BOI - LHR

1 stop12h 09mLufthansa

Deal found 16/9£531

Wed 8/1008:25LHR - BOI

2 stops20h 57mAmerican Airlines

Tue 14/1007:00BOI - LHR

1 stop22h 45mAmerican Airlines

Deal found 15/9£533

Sun 5/1014:30LHR - GEG

2 stops17h 33mVirgin Atlantic

Fri 17/1014:17GEG - LHR

2 stops21h 43mVirgin Atlantic

Deal found 16/9£536

Fri 31/1011:10LHR - BOI

2 stops28h 48mUnited Airlines

Fri 7/1105:00BOI - LHR

1 stop21h 40mUnited Airlines

Deal found 16/9£539

Best flights from Heathrow to Idaho
Discover carefully curated flight deals from Heathrow to Idaho that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 18 September 2025.

Thu 30/1006:35LHR - GEG

2 stops37h 10mUnited Airlines

Thu 6/1105:10GEG - LHR

1 stop20h 30mUnited Airlines

Deal found 15/9£463

Thu 30/1011:35LHR - GEG

1 stop16h 10mMultiple Airlines

Thu 6/1112:45GEG - LHR

1 stop34h 40mMultiple Airlines

Deal found 15/9£480

Sat 1/1111:35LHR - GEG

1 stop16h 10mLufthansa

Sat 8/1106:00GEG - LHR

1 stop17h 25mLufthansa

Deal found 17/9£483

Mon 6/1016:05LHR - BOI

2 stops37h 47mVirgin Atlantic

Thu 16/1014:00BOI - LHR

1 stop14h 20mVirgin Atlantic

Deal found 17/9£548

Sat 22/1114:25LHR - IDA

1 stop15h 09mAmerican Airlines

Wed 26/1107:10IDA - LHR

2 stops29h 50mAmerican Airlines

Deal found 16/9£596

Sat 22/1106:20LHR - IDA

2 stops23h 13mDelta

Wed 26/1106:00IDA - LHR

1 stop21h 00mDelta

Deal found 15/9£600

Sat 22/1106:20LHR - IDA

2 stops18h 57mAir France

Wed 26/1106:00IDA - LHR

2 stops29h 20mAir France

Deal found 16/9£653

Tue 16/1220:35LHR - JAC

2 stops50h 00mIcelandair

Thu 8/119:20JAC - LHR

2 stops32h 30mIcelandair

Deal found 17/9£835

Tue 10/306:35LHR - GEG

2 stops37h 34mUnited Airlines

Tue 17/305:00GEG - LHR

1 stop21h 40mUnited Airlines

Deal found 15/9£463

Sun 5/1010:35LHR - GEG

1 stop20h 40mMultiple Airlines

Fri 17/1007:15GEG - LHR

1 stop16h 10mMultiple Airlines

Deal found 16/9£481

Tue 10/307:40LHR - GEG

2 stops20h 29mLufthansa

Tue 17/313:45GEG - LHR

2 stops38h 05mLufthansa

Deal found 15/9£484

Mon 23/207:30LHR - GEG

2 stops21h 39mUnited Airlines

Fri 27/205:00GEG - LHR

2 stops20h 10mUnited Airlines

Deal found 15/9£465

Mon 6/1013:25LHR - BOI

1 stop13h 51mVirgin Atlantic

Mon 13/1013:00BOI - LHR

1 stop13h 50mVirgin Atlantic

Deal found 17/9£562

Sat 1/1110:10LHR - IDA

2 stops18h 05mDelta

Sat 8/1106:00IDA - LHR

1 stop21h 00mDelta

Deal found 17/9£641

Fri 21/1106:35LHR - BOI

2 stops34h 23mUnited Airlines

Sun 30/1106:20BOI - LHR

1 stop18h 05mUnited Airlines

Deal found 17/9£540

Mon 8/1207:40LHR - BOI

2 stops33h 19mUnited Airlines

Mon 15/1206:20BOI - LHR

2 stops19h 05mUnited Airlines

Deal found 17/9£540

Sun 1/220:15LHR - JAC

2 stops31h 27mLufthansa

Sun 22/214:30JAC - LHR

1 stop12h 10mLufthansa

Deal found 17/9£665

Sat 1/1106:50LHR - BOI

2 stops21h 55mUnited Airlines

Sat 8/1114:40BOI - LHR

1 stop14h 20mUnited Airlines

Deal found 17/9£544

Sun 28/910:35LHR - BOI

1 stop15h 40mUnited Airlines

Wed 8/1014:39BOI - LHR

1 stop12h 01mUnited Airlines

Deal found 15/9£562

Sun 28/910:35LHR - BOI

1 stop15h 40mUnited Airlines

Mon 6/1014:39BOI - LHR

1 stop12h 01mUnited Airlines

Deal found 15/9£562

Thu 30/1012:00LHR - BOI

2 stops27h 58mUnited Airlines

Sat 8/1114:31BOI - LHR

1 stop12h 09mUnited Airlines

Deal found 15/9£562

Sat 4/1011:25LHR - BOI

1 stop18h 05mUnited Airlines

Thu 16/1014:39BOI - LHR

1 stop12h 01mUnited Airlines

Deal found 15/9£562

Tue 30/916:15LHR - BOI

1 stop14h 29mUnited Airlines

Tue 7/1008:20BOI - LHR

1 stop15h 00mUnited Airlines

Deal found 15/9£562

Sat 27/911:25LHR - BOI

1 stop13h 23mUnited Airlines

Sat 4/1012:35BOI - LHR

1 stop12h 45mUnited Airlines

Deal found 15/9£562

Sun 1/207:30LHR - JAC

2 stops20h 12mUnited Airlines

Sun 22/216:25JAC - LHR

2 stops38h 05mUnited Airlines

Deal found 17/9£666

Sat 1/1107:30LHR - IDA

2 stops16h 16mUnited Airlines

Sat 8/1110:50IDA - LHR

1 stop15h 50mUnited Airlines

Deal found 17/9£666

Sat 1/1108:00LHR - JAC

2 stops18h 37mUnited Airlines

Sat 8/1110:45JAC - LHR

2 stops14h 10mUnited Airlines

Deal found 17/9£688

Last-minute flights from Heathrow to Idaho
Discover last-minute flight deals from Heathrow to Idaho. Data last updated 18 September 2025 and is based on user searches.

Sun 5/1010:35LHR - GEG

1 stop20h 40mMultiple Airlines

Fri 17/1007:15GEG - LHR

1 stop16h 10mMultiple Airlines

Deal found 16/9£481

Sun 5/1012:20LHR - GEG

1 stop18h 55mUnited Airlines

Fri 17/1005:05GEG - LHR

2 stops20h 15mUnited Airlines

Deal found 16/9£487

Sun 5/1014:30LHR - GEG

2 stops17h 33mVirgin Atlantic

Fri 17/1014:17GEG - LHR

2 stops21h 43mVirgin Atlantic

Deal found 16/9£536

Mon 6/1013:25LHR - BOI

1 stop13h 51mVirgin Atlantic

Thu 16/1014:00BOI - LHR

1 stop17h 15mVirgin Atlantic

Deal found 17/9£548

Tue 7/1011:15LHR - BOI

2 stops18h 50mMultiple Airlines

Tue 14/1015:37BOI - LHR

1 stop17h 03mMultiple Airlines

Deal found 15/9£493

Wed 8/1008:25LHR - BOI

2 stops20h 57mAmerican Airlines

Tue 14/1007:00BOI - LHR

1 stop22h 45mAmerican Airlines

Deal found 15/9£533

Fri 17/1008:40LHR - GEG

2 stops22h 35mUnited Airlines

Mon 20/1016:00GEG - LHR

1 stop12h 20mUnited Airlines

Deal found 17/9£552

Thu 30/1007:30LHR - BOI

2 stops19h 51mLufthansa

Mon 10/1110:39BOI - LHR

2 stops17h 11mLufthansa

Deal found 15/9£540

Thu 30/1007:30LHR - BOI

2 stops19h 51mLufthansa

Sun 9/1112:35BOI - LHR

2 stops17h 15mLufthansa

Deal found 15/9£547

Fri 31/1006:30LHR - BOI

2 stops21h 38mMultiple Airlines

Mon 10/1108:41BOI - LHR

1 stop18h 59mMultiple Airlines

Deal found 15/9£487

Fri 31/1006:35LHR - BOI

2 stops45h 01mLufthansa

Fri 7/1114:31BOI - LHR

1 stop12h 09mLufthansa

Deal found 16/9£531

Fri 31/1011:10LHR - BOI

2 stops28h 48mUnited Airlines

Fri 7/1105:00BOI - LHR

1 stop21h 40mUnited Airlines

Deal found 16/9£539

One-way flights from Heathrow to Idaho
Search for one-way flight options from Heathrow to Idaho. Find affordable one-way fares based on user searches. Data last updated 18 September 2025.

Tue 2/1214:50LHR - IDA

2 stops27h 39mMultiple Airlines

Deal found 15/9£418

Mon 15/1217:50LHR - BOI

3 stops37h 09mMultiple Airlines

Deal found 16/9£431

Tue 25/1111:40LHR - IDA

2 stops32h 47mAmerican Airlines

Deal found 16/9£463

Fri 28/1114:50LHR - IDA

3 stops40h 12mMultiple Airlines

Deal found 15/9£484

Wed 26/1110:45LHR - IDA

1 stop18h 34mDelta

Deal found 16/9£491

Tue 2/1214:20LHR - IDA

1 stop15h 14mAmerican Airlines

Deal found 15/9£493

Mon 1/1215:00LHR - IDA

2 stops38h 34mAmerican Airlines

Deal found 16/9£501

Mon 15/1211:55LHR - BOI

1 stop17h 30mFinnair

Deal found 16/9£553

Fri 17/1006:55LHR - GEG

2 stops21h 29mLufthansa

Deal found 17/9£579

Fri 17/1007:05LHR - GEG

3 stops19h 38mScandinavian Airlines

Deal found 17/9£2,075

Sun 2/1111:35LHR - JAC

1 stop16h 02mLufthansa

Deal found 17/9£3,366

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

LondonSpokane

LHR - GEG

LHRGEG

London Heathrow

Thu 30/10

06:35-12:45

2 stops37h 10m

Spokane

Thu 6/11

05:10-09:40

1 stop20h 30m

£463

LondonSpokane

LHR - GEG

LHRGEG

London Heathrow

Tue 10/3

06:35-13:09

2 stops37h 34m

Spokane

Tue 17/3

05:00-09:40

1 stop21h 40m

£463

LondonSpokane

LHR - GEG

LHRGEG

London Heathrow

Mon 23/2

07:30-21:09

2 stops21h 39m

Spokane

Fri 27/2

05:00-09:10

2 stops20h 10m

£465

LondonSpokane

LHR - GEG

LHRGEG

London Heathrow

Thu 30/10

11:35-20:45

1 stop16h 10m

Spokane

Thu 6/11

12:45-07:25

1 stop34h 40m

£480

LondonSpokane

LHR - GEG

LHRGEG

London Heathrow

Sun 5/10

10:35-23:15

1 stop20h 40m

Spokane

Fri 17/10

07:15-07:25

1 stop16h 10m

£481

LondonSpokane

LHR - GEG

LHRGEG

London Heathrow

Sat 1/11

11:35-20:45

1 stop16h 10m

Spokane

Sat 8/11

06:00-07:25

1 stop17h 25m

£483

LondonSpokane

LHR - GEG

LHRGEG

London Heathrow

Tue 10/3

07:40-21:09

2 stops20h 29m

Spokane

Tue 17/3

13:45-10:50

2 stops38h 05m

£484

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Fri 21/11

06:35-09:58

2 stops34h 23m

Boise Air Term. Gowen Fld

Sun 30/11

06:20-07:25

1 stop18h 05m

£540

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Mon 8/12

07:40-09:59

2 stops33h 19m

Boise Air Term. Gowen Fld

Mon 15/12

06:20-08:25

2 stops19h 05m

£540

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Sat 1/11

06:50-22:45

2 stops21h 55m

Boise Air Term. Gowen Fld

Sat 8/11

14:40-12:00

1 stop14h 20m

£544

Flights are sorted by cheapest return flights first.

Deals found on 15/9

Showing 1-10 of 41 results

...

Best time to book a flight from Heathrow to Idaho

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

Cheapflights Insights

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

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

Currently, October is the cheapest month in which you can book a flight from London Heathrow Airport to Idaho (average of £754). Flying from London Heathrow Airport 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 LHR to ID?

When flying from London Heathrow Airport 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.

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

Reviews of airlines servicing Idaho

See what other customers who have flown with KLM, Finnair, andUnited Airlines from London Heathrow Airport to Idaho have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

KLM

7.8

Good

1,386 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

KLM

7.8

Good

1,386 reviews

KLM

7.8

Good

1,386 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

Finnair

7.6

Good

1,324 reviews

KLM

7.8

Good

1,386 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

United Airlines

7.4

Good

8,926 reviews

KLM

7.8

Good

1,386 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

Virgin Atlantic

7.4

Good

664 reviews

KLM

7.8

Good

1,386 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

Lufthansa

6.8

Okay

7,409 reviews

KLM

7.8

Good

1,386 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

Related info for your journey

How long is the flight from London Heathrow Airport to Idaho?
For as low as £596, United Airlines can have you in Idaho from London Heathrow Airport in 15h 09m. Airlines will cover a distance of 4705 mi. Both multi-stop and direct flights can be found to your destination and back.
What are the cheapest airlines to fly from London Heathrow Airport to Idaho one-way?
For one-way options, check prices for Lufthansa. According to our data, you can fly for as low as £457. Users have also found prices from £491 and £553 on Delta and Finnair, respectively.
What are the most popular routes from London Heathrow Airport to Idaho?
While some choose either London Heathrow - Jackson Hole or London Heathrow - Spokane, London Heathrow - Boise Air Term. Gowen Fld is the most popular route from London Heathrow Airport to Idaho.
Can I find deals for flights from Heathrow to Idaho that include hotel bookings?
Yes. In addition to deals on Heathrow to Idaho flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Heathrow to Idaho?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Idaho.
Can I find deals for business class flights from Heathrow to Idaho?
Yes. Cheapflights offers flight deals from Heathrow 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 Heathrow Airport to Idaho?
Currently, October is the cheapest month in which you can book a flight from London Heathrow Airport to Idaho (average of £754). Flying from London Heathrow Airport 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 Heathrow to Idaho

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Direct flights to United States

Top 5 airlines flying from Heathrow to Idaho

Airline	Cheapest	Average	Flexibility	On-time
Finnair	Cheapest£509	Average£627	FlexibilityNo cancel fee	On-time76%	Search Finnair flights
KLM	Cheapest£522	Average£619	FlexibilityNo cancel fee	On-time75%	Search KLM flights
United Airlines	Cheapest£531	Average£839	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Lufthansa	Cheapest£533	Average£613	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
Virgin Atlantic	Cheapest£590	Average£813	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights

Fly with Cheapflights

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

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Idaho from Heathrow today with Cheapflights!

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Heathrow to Idaho.

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

Certainly. Search results for flights to Idaho from Heathrow shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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Cheap flights from London Heathrow Airport to Idaho from £418

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 2/12. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Heathrow to Idaho

Keep the following information in mind while searching for Heathrow to Idaho flight deals. Data was last updated 18 September 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Heathrow to Idaho

Cheapest flights from Heathrow to IdahoExplore the most affordable flight options available from Heathrow to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2025.

Explore the most affordable flight options available from Heathrow to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Heathrow to Idaho

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

Cheapflights Insights

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

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

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

Find hourly flight availability from Heathrow 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 18 September 2025.

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

Reviews of airlines servicing Idaho

See what other customers who have flown with KLM, Finnair, andUnited Airlines from London Heathrow Airport to Idaho have to say. Users can see the overall rating for each airline as well as how each is rated 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 Heathrow to Idaho. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

How long is the flight from London Heathrow Airport to Idaho?

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

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

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

How can I find direct flights from Heathrow to Idaho?

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

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

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Alternative routes for Heathrow to Idaho

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Top 5 airlines flying from Heathrow to Idaho

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Cheapest flights from Heathrow to Idaho
Explore the most affordable flight options available from Heathrow to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2025.