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Cheap flights from England to Idaho from £383

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 2/5. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — BOI
7 Dec — 14 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from England to Idaho

Enter your travel dates to find the best prices.

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 7 November 2025.

Tue 9/1206:35LHR - BOI
2 stops34h 24mUnited Airlines
Mon 15/1209:40BOI - LHR
1 stop17h 00mUnited Airlines
Deal found 6/11£550
Mon 8/1206:30LHR - BOI
2 stops20h 13mUnited Airlines
Mon 15/1210:40BOI - LHR
1 stop16h 00mUnited Airlines
Deal found 6/11£552
Tue 9/1206:35LHR - BOI
2 stops18h 32mUnited Airlines
Sun 14/1217:25BOI - LHR
1 stop33h 15mUnited Airlines
Deal found 6/11£558
Mon 8/1211:35LHR - BOI
1 stop13h 32mLufthansa
Mon 15/1214:49BOI - LHR
1 stop11h 51mLufthansa
Deal found 6/11£562
Tue 9/1206:35LHR - BOI
2 stops18h 32mLufthansa
Sun 14/1214:49BOI - LHR
2 stops37h 01mLufthansa
Deal found 7/11£571
Wed 12/1111:55LGW - GEG
2 stops20h 27mMultiple Airlines
Thu 20/1105:51GEG - LGW
2 stops21h 04mMultiple Airlines
Deal found 5/11£625
Mon 8/1211:55LGW - BOI
2 stops18h 01mMultiple Airlines
Tue 16/1211:45BOI - LGW
2 stops16h 10mMultiple Airlines
Deal found 6/11£670
Thu 20/1110:05LHR - GEG
1 stop18h 50mIberia
Wed 3/1205:17GEG - LHR
1 stop17h 33mIberia
Deal found 5/11£693
Thu 20/1113:05LHR - GEG
2 stops18h 54mVirgin Atlantic
Wed 3/1206:00GEG - LHR
2 stops17h 50mVirgin Atlantic
Deal found 5/11£700
Sat 22/1120:35LHR - SUN
2 stops44h 02mMultiple Airlines
Tue 9/1210:50SUN - LHR
2 stops17h 00mMultiple Airlines
Deal found 6/11£709
Mon 8/1211:55LGW - BOI
2 stops18h 01mMultiple Airlines
Mon 15/1211:45BOI - LGW
2 stops16h 10mMultiple Airlines
Deal found 7/11£710
Thu 11/1211:55LGW - BOI
2 stops18h 15mMultiple Airlines
Fri 9/109:02BOI - LGW
2 stops18h 53mMultiple Airlines
Deal found 5/11£719

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 7 November 2025.

Round-trip from

£480

One-way from

£383

Popular in

July

Cheapest in

September

Average price

£657
9/2-16/2
  • 9/2-16/2
  • 4 total stops
  • 40h 06m total
  • England to Idaho
Search Deals
2/5
  • 2/5
  • 2 total stops
  • 47h 16m total
  • England to Idaho
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (£93 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£17 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

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 7 November 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

Tue 9/12

06:35-09:59

2 stops34h 24m

Boise Air Term. Gowen Fld

Mon 15/12

09:40-09:40

1 stop17h 00m

£550

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Mon 8/12

07:30-19:43

2 stops19h 13m

Boise Air Term. Gowen Fld

Mon 15/12

06:20-06:40

2 stops17h 20m

£552

LondonSpokane

LHR - GEG

LHRGEG

London Heathrow

Tue 10/3

06:35-21:20

2 stops21h 45m

Spokane

Tue 17/3

06:05-06:20

2 stops17h 15m

£556

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Mon 9/2

06:30-19:51

2 stops20h 21m

Boise Air Term. Gowen Fld

Wed 18/2

10:53-07:25

1 stop13h 32m

£558

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Mon 9/2

06:30-19:51

2 stops20h 21m

Boise Air Term. Gowen Fld

Tue 17/2

14:40-09:40

1 stop12h 00m

£558

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Mon 9/2

06:30-19:51

2 stops20h 21m

Boise Air Term. Gowen Fld

Thu 19/2

12:16-07:55

1 stop12h 39m

£558

LondonSpokane

LHR - GEG

LHRGEG

London Heathrow

Wed 6/5

08:45-23:38

2 stops22h 53m

Spokane

Mon 11/5

07:02-10:10

2 stops19h 08m

£565

LondonSpokane

LGW - GEG

LGWGEG

London Gatwick

Tue 10/3

11:55-20:59

2 stops16h 04m

Spokane

Tue 17/3

12:00-10:55

2 stops15h 55m

£587

LondonSpokane

LHR - GEG

LHRGEG

London Heathrow

Wed 6/5

10:35-23:38

1 stop21h 03m

Spokane

Mon 11/5

13:45-12:20

1 stop14h 35m

£587

LondonBoise

LCY - BOI

LCYBOI

London City

Mon 20/4

09:15-21:36

2 stops19h 21m

Boise Air Term. Gowen Fld

Mon 27/4

12:00-18:35

2 stops47h 35m

£615

Flights are sorted by cheapest return flights first.

Deals found on 5/11

Showing 1-10 of 60 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, May is the cheapest month in which you can book a flight from England to Idaho (average of £552). Flying from England to Idaho in July is currently the most expensive (average of £691). 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 7 November 2025.

It’s optimal to fly from England to Idaho in the evening. By choosing this option you can save up to 17% on the cost of your flight, compared to a flight in the morning.

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 7 November 2025.
Read through reviews of airlines operating flights from England to Idaho, such as KLM, Virgin Atlantic, andUnited Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.7
Good
1,405 reviews
Check prices

Entertainment

7.1

Overall

7.7

Food

7.3

Comfort

7.7

Boarding

7.8

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
KLM
7.7
Good
1,405 reviews
KLM
7.7
Good
1,405 reviews
Check prices

Entertainment

7.1

Overall

7.7

Food

7.3

Comfort

7.7

Boarding

7.8

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
Virgin Atlantic
7.5
Good
672 reviews
KLM
7.7
Good
1,405 reviews
Check prices

Entertainment

7.1

Overall

7.7

Food

7.3

Comfort

7.7

Boarding

7.8

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
United Airlines
7.4
Good
9,007 reviews
KLM
7.7
Good
1,405 reviews
Check prices

Entertainment

7.1

Overall

7.7

Food

7.3

Comfort

7.7

Boarding

7.8

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
Icelandair
7.1
Good
572 reviews
KLM
7.7
Good
1,405 reviews
Check prices

Entertainment

7.1

Overall

7.7

Food

7.3

Comfort

7.7

Boarding

7.8

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
Lufthansa
6.8
Okay
7,558 reviews
KLM
7.7
Good
1,405 reviews
Check prices

Entertainment

7.1

Overall

7.7

Food

7.3

Comfort

7.7

Boarding

7.8

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

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.

  • How long is the flight from England to Idaho?

    Departing from England to Idaho will take you 16h 04m. Airlines will cover a distance of 4667 mi. Both multi-stop and direct flights can be found to your destination and back.

  • 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 United Airlines (£433), Delta (£494), and Virgin Atlantic (£631).

  • 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, May is the cheapest month in which you can book a flight from England to Idaho (average of £552). Flying from England to Idaho in July is currently the most expensive (average of £691). 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.
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Top 9 airlines flying from England to Idaho

Discover the top 9 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 7 November 2025.
AirlineCheapestAverageFlexibilityOn-time
FinnairCheapest£530Average£685FlexibilityNo cancel feeOn-time76%
Search Finnair flights
United AirlinesCheapest£554Average£823FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
LufthansaCheapest£556Average£715FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Virgin AtlanticCheapest£615Average£854FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
Scandinavian AirlinesCheapest£617Average£958FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
British AirwaysCheapest£642Average£851FlexibilityNo cancel feeOn-time70%
Search British Airways flights
IcelandairCheapest£665Average£749FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Air FranceCheapest£673Average£798FlexibilityNo cancel feeOn-time77%
Search Air France flights
KLMCheapest£715Average£859FlexibilityNo cancel feeOn-time75%
Search KLM 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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