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Cheap flights from England to Idaho from £479

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 16/5. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — BOI
6 Apr — 13 Apr1
1 adult

Cheap flight deals from England to Idaho

Keep the following information in mind while searching for England to Idaho flight deals. Data was last updated 1 April 2025.

Round-trip from

£479

Popular in

August

Cheapest in

November

Average price

£684
United Airlines
  • United Airlines
  • 16/5-23/5
  • 3 total stops
  • 47h 59m total
  • England to Idaho
Highest demand for flights based on searches. 17% potential increase in price (£121 potential increase over avg. return price).
Cheapest flight prices on average. 4% potential price decrease (£23 potential savings vs. average return price).
Average for round-trip flights in April 2025

Find flight deals from England to Idaho

Cheapest flights from England to Idaho
Explore the most affordable flight options available from England to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 April 2025.

Fri 16/516:15LHR - BOI
2 stops27h 24mUnited Airlines
Fri 23/507:50BOI - LHR
2 stops20h 20mUnited Airlines
Deal found 1/4£479
Thu 15/513:05LHR - GEG
2 stops16h 06mMultiple Airlines
Thu 22/513:40GEG - LHR
2 stops22h 40mMultiple Airlines
Deal found 31/3£563
Fri 16/510:55LGW - GEG
1 stop19h 27mMultiple Airlines
Sun 25/507:10GEG - LGW
1 stop19h 45mMultiple Airlines
Deal found 1/4£567
Thu 15/508:40LHR - GEG
2 stops22h 58mUnited Airlines
Thu 22/513:37GEG - LHR
1 stop12h 03mUnited Airlines
Deal found 31/3£582
Tue 6/509:30LHR - BOI
2 stops19h 12mMultiple Airlines
Tue 13/505:00BOI - LHR
3 stops18h 35mMultiple Airlines
Deal found 1/4£595
Thu 15/510:55LHR - GEG
1 stop13h 05mVirgin Atlantic
Thu 22/515:30GEG - LHR
1 stop14h 45mVirgin Atlantic
Deal found 31/3£600
Fri 19/906:30LHR - JAC
2 stops18h 48mUnited Airlines
Sat 27/913:40JAC - LHR
2 stops34h 45mUnited Airlines
Deal found 31/3£605
Wed 7/511:00LHR - IDA
1 stop14h 10mVirgin Atlantic
Tue 20/512:30IDA - LHR
2 stops19h 05mVirgin Atlantic
Deal found 1/4£633
Wed 7/511:45LHR - IDA
2 stops18h 06mKLM
Tue 20/512:30IDA - LHR
2 stops18h 45mKLM
Deal found 1/4£635
Tue 22/410:55LHR - BOI
1 stop13h 08mKLM
Fri 2/514:15BOI - LHR
1 stop13h 55mKLM
Deal found 1/4£649
Tue 15/408:40LHR - GEG
2 stops18h 05mDelta
Thu 24/413:25GEG - LHR
2 stops15h 45mDelta
Deal found 31/3£655
Sat 28/612:20LHR - BOI
2 stops58h 35mLufthansa
Mon 7/716:40BOI - LHR
1 stop35h 30mLufthansa
Deal found 1/4£666

Cheapflights Fare Finder

Customise your flight search to find flights from England to Idaho 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 1 April 2025.
Use the filters below to find and compare flights from England to Idaho that are best for you.

Fly from

England

Fly to

Idaho

Route

Depart

Return

Price

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Fri 16/5

16:15-12:39

2 stops27h 24m

Boise Air Term. Gowen Fld

Fri 23/5

07:50-11:10

2 stops20h 20m

£479

LondonSpokane

LHR - GEG

LHRGEG

London Heathrow

Thu 15/5

13:05-21:11

2 stops16h 06m

Spokane

Thu 22/5

13:40-20:20

2 stops22h 40m

£563

LondonSpokane

LGW - GEG

LGWGEG

London Gatwick

Fri 16/5

10:55-22:22

1 stop19h 27m

Spokane

Sun 25/5

07:10-10:55

1 stop19h 45m

£567

LondonSpokane

LHR - GEG

LHRGEG

London Heathrow

Thu 15/5

08:40-23:38

2 stops22h 58m

Spokane

Thu 22/5

06:20-07:25

1 stop17h 05m

£582

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Tue 6/5

09:30-21:42

2 stops19h 12m

Boise Air Term. Gowen Fld

Tue 13/5

05:00-06:35

3 stops18h 35m

£595

LondonSpokane

LHR - GEG

LHRGEG

London Heathrow

Thu 15/5

10:55-16:00

1 stop13h 05m

Spokane

Thu 22/5

15:30-14:15

1 stop14h 45m

£600

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Wed 7/5

11:00-18:10

1 stop14h 10m

Idaho Falls Fanning Field

Tue 20/5

12:30-14:35

2 stops19h 05m

£633

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Wed 7/5

11:45-22:51

2 stops18h 06m

Idaho Falls Fanning Field

Tue 20/5

12:30-14:15

2 stops18h 45m

£635

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Tue 22/4

10:55-17:03

1 stop13h 08m

Boise Air Term. Gowen Fld

Fri 2/5

14:15-11:10

1 stop13h 55m

£649

LondonSpokane

LHR - GEG

LHRGEG

London Heathrow

Tue 15/4

08:40-18:45

2 stops18h 05m

Spokane

Thu 24/4

13:25-13:10

2 stops15h 45m

£655

Flights are sorted by cheapest return flights first.

Deals found on 1/4

Showing 1-10 of 48 results
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Best time to book a flight from England to Idaho

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

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

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

Find hourly flight availability from England 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 1 April 2025.

When flying from England 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

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

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

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 1 April 2025.
To help decide which airline to fly from England to Idaho, see what other customers have to say about Delta, KLM and Finnair. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Overall

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Comfort

7.9

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
8.0
Very Good

Overall

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Comfort

7.9

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

Overall

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Comfort

7.9

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

Overall

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Comfort

7.9

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

Overall

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Comfort

7.9

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

Overall

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Comfort

7.9

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

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

    The cheapet airlines for a one-way flight from England to Idaho are WestJet (£484), Lufthansa (£597), and Finnair (£744).

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

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

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

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

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

    Yes. Cheapflights offers flight deals from England 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 England to Idaho?

    Currently, October is the cheapest month in which you can book a flight from England to Idaho (average of £754). Flying from England 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

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

Alternative routes for England to Idaho

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

Top 8 airlines flying from England to Idaho

Discover the top 8 airlines that operate flights from England to Idaho. 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 1 April 2025.
AirlineCheapestAverageFlexibilityOn-time
FinnairCheapest£509Average£699FlexibilityNo cancel feeOn-time76%
Search Finnair flights
United AirlinesCheapest£550Average£834FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
KLMCheapest£551Average£864FlexibilityNo cancel feeOn-time75%
Search KLM flights
LufthansaCheapest£558Average£676FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Virgin AtlanticCheapest£599Average£852FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
IberiaCheapest£616Average£735FlexibilityNo cancel feeOn-time77%
Search Iberia flights
British AirwaysCheapest£634Average£817FlexibilityNo cancel feeOn-time70%
Search British Airways flights
IcelandairCheapest£661Average£822FlexibilityNo cancel feeOn-time76%
Search Icelandair flights

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 England to Idaho?

Deals for England 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 England to Idaho?

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

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

Yes! Cheapflights helps users easily find flights from England to Idaho with no change fees.

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

Yes, Cheapflights offers price alerts on England to Idaho flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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