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Cheap flights from Idaho to London from £286

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 23/4. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — LON
28 Feb — 7 Mar1
1 adult

Cheap flight deals from Idaho to London

Keep the following information in mind while searching for Idaho to London flight deals. Data was last updated 23 February 2025.

Round-trip from

£502

One-way from

£286

Popular in

June

Cheapest in

April

Average price

£623
Virgin Atlantic
  • Virgin Atlantic
  • 22/4-7/5
  • 2 total stops
  • 27h 56m total
  • Idaho to London
Search Deals
23/4
  • 23/4
  • 3 total stops
  • 38h 31m total
  • Idaho to London
Search Deals
Highest demand for flights based on searches. 28% potential increase in price (£231 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (£31 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2025
Search Deals

Find flight deals from Idaho to London

Cheapest flights from Idaho to London
Explore the most affordable flight options available from Idaho to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 23 February 2025.

Mon 10/313:25JAC - LHR
2 stops15h 30mVirgin Atlantic
Tue 18/317:05LHR - JAC
2 stops32h 01mVirgin Atlantic
Deal found 22/2£504
Tue 8/414:21JAC - LHR
1 stop14h 59mUnited Airlines
Tue 15/414:05LHR - JAC
2 stops32h 18mUnited Airlines
Deal found 21/2£538
Tue 18/313:46GEG - LHR
1 stop12h 54mUnited Airlines
Tue 1/409:30LHR - GEG
2 stops43h 20mUnited Airlines
Deal found 21/2£538
Tue 8/406:15GEG - LHR
2 stops23h 05mAir Canada
Tue 15/417:40LHR - GEG
2 stops26h 58mAir Canada
Deal found 22/2£543
Tue 15/417:25BOI - LHR
1 stop11h 55mUnited Airlines
Tue 22/407:30LHR - BOI
2 stops17h 22mUnited Airlines
Deal found 21/2£544
Wed 23/413:25GEG - LHR
1 stop16h 50mDelta
Wed 30/409:55LHR - GEG
2 stops16h 49mDelta
Deal found 21/2£544
Tue 15/407:05BOI - LHR
1 stop16h 20mFinnair
Tue 22/412:00LHR - BOI
1 stop17h 11mFinnair
Deal found 21/2£547
Tue 23/911:00BOI - LHR
1 stop17h 25mDelta
Wed 1/1011:30LHR - BOI
2 stops18h 46mDelta
Deal found 20/2£549
Wed 1/1011:15GEG - LHR
2 stops20h 45mScandinavian Airlines
Wed 8/1007:05LHR - GEG
3 stops17h 54mScandinavian Airlines
Deal found 21/2£551
Tue 8/407:17LWS - LHR
1 stop22h 58mKLM
Tue 15/417:25LHR - LWS
1 stop13h 13mKLM
Deal found 21/2£556
Tue 8/407:17LWS - LHR
2 stops17h 38mDelta
Tue 15/410:55LHR - LWS
2 stops19h 43mDelta
Deal found 21/2£559
Mon 3/307:15BOI - LHR
2 stops25h 45mScandinavian Airlines
Tue 11/318:40LHR - BOI
2 stops34h 10mScandinavian Airlines
Deal found 20/2£564

Find flights from Idaho to London within your budget

Customise your flight search to find flights from Idaho to London 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, Cheapflights users made 858,174 searches. Data last updated 23 February 2025.

Fly from

Idaho

Fly to

London

Route

Depart

Return

Price

SpokaneLondon

GEG - LHR

GEGLHR

Spokane

Tue 22/4

14:15-13:10

1 stop14h 55m

London Heathrow

Wed 7/5

11:00-16:01

1 stop13h 01m

£502

JacksonLondon

JAC - LHR

JACLHR

Jackson Hole

Mon 10/3

14:24-07:55

1 stop35h 31m

London Heathrow

Tue 18/3

17:05-19:06

2 stops32h 01m

£504

JacksonLondon

JAC - LHR

JACLHR

Jackson Hole

Tue 8/4

14:21-12:20

1 stop14h 59m

London Heathrow

Tue 15/4

14:05-15:23

2 stops32h 18m

£538

SpokaneLondon

GEG - LHR

GEGLHR

Spokane

Tue 8/4

16:08-12:20

1 stop12h 12m

London Heathrow

Tue 15/4

14:05-12:38

2 stops30h 33m

£538

SpokaneLondon

GEG - LHR

GEGLHR

Spokane

Tue 8/4

06:15-13:20

2 stops23h 05m

London Heathrow

Tue 15/4

17:40-12:38

2 stops26h 58m

£543

BoiseLondon

BOI - LHR

BOILHR

Boise Air Term. Gowen Fld

Tue 15/4

13:10-14:35

1 stop18h 25m

London Heathrow

Tue 22/4

06:30-17:03

2 stops17h 33m

£544

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Wed 16/4

16:15-12:20

1 stop13h 05m

London Heathrow

Wed 23/4

06:30-21:07

2 stops21h 37m

£545

BoiseLondon

BOI - LHR

BOILHR

Boise Air Term. Gowen Fld

Tue 15/4

07:05-06:25

1 stop16h 20m

London Heathrow

Tue 22/4

12:00-22:11

1 stop17h 11m

£547

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Wed 16/4

13:10-09:50

1 stop13h 40m

London Heathrow

Wed 23/4

11:00-18:15

1 stop14h 15m

£556

LewistonLondon

LWS - LHR

LWSLHR

Lewiston Nez Perce Rgnl

Tue 8/4

07:17-14:15

1 stop22h 58m

London Heathrow

Tue 15/4

17:25-22:38

1 stop13h 13m

£556

Flights are sorted by cheapest return flights first.

Deals found on 21/2

Showing 1-10 of 58 results
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Best time to book a flight from Idaho to London

Have a flexible travel schedule? Discover the best time to fly to London 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 London

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

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

Currently, January is the cheapest month in which you can book a flight from Idaho to London (average of £112). Flying from Idaho to London in August is currently the most expensive (average of £163). 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 LON?

Find hourly flight availability from Idaho to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 23 February 2025.

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

Rainfall in London by month

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

In terms of precipitation, rainfall in London 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 when rainfall is around 40.0 mm.

Temperature in London by month

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

If weather is an important factor for your trip to London, 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 London

Get insights into the airlines that provide service to London. 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 London. Reviews last updated 23 February 2025.
Read through reviews of airlines operating flights from Idaho to London, such as Delta, Alaska Airlines and KLM. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
8,203 reviews
Check prices

Crew

8.5

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

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

Delta
8.0
Very Good
8,203 reviews
Delta
8.0
Very Good
8,203 reviews
Check prices

Crew

8.5

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

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

Alaska Airlines
8.0
Very Good
9,706 reviews
Delta
8.0
Very Good
8,203 reviews
Check prices

Crew

8.5

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

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

KLM
7.8
Good
1,332 reviews
Delta
8.0
Very Good
8,203 reviews
Check prices

Crew

8.5

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

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

Finnair
7.6
Good
1,271 reviews
Delta
8.0
Very Good
8,203 reviews
Check prices

Crew

8.5

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

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

SWISS
7.5
Good
1,568 reviews
Delta
8.0
Very Good
8,203 reviews
Check prices

Crew

8.5

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

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

Related info for your journey

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

    The cheapest airline one-way is Scandinavian Airlines, with whom users have recently found tickets for as low as £365. However, be on the lookout for offers from Finnair and Lufthansa, as they are both options that can get you from Idaho to London for a low price.

  • What are the most popular routes from Idaho to London?

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

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

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

  • How can I find direct flights from Idaho to London?

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

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

    Yes. Cheapflights offers flight deals from Idaho to London 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?

    Currently, January is the cheapest month in which you can book a flight from Idaho to London (average of £112). Flying from Idaho to London in August is currently the most expensive (average of £163). 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

Travelling to a place near Idaho?

Book flights to Idaho if you plan to visit one of these locations
Deal
Hounslow
Milton Keynes
Croydon
Gatwick
Slough
Luton
Ilford
Hayes
Eastbourne
Wembley
Southend-on-Sea
Ipswich
Winchester
Maidstone
Crawley
Southall
Watford
Dartford
Stansted

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Alternative routes for Idaho to London

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Idaho to London

Discover the top airline that operate flights from Idaho to London. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 23 February 2025.
AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest£481Average£949FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights

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

When you search for this flight from Idaho to London, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

Millions of users choose and trust Cheapflights to book the best flight deals from Idaho to London for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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Users can book flights with no change fees policies with our dedicated filters. Book flights from Idaho to London flexibly with Cheapflights today.

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