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Cheap flights from England to Idaho from £349

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 18/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — BOI
9 Jul — 16 Jul1
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 4 July 2025.

Round-trip from

£517

One-way from

£349

Popular in

August

Cheapest in

November

Average price

£862
United Airlines
  • United Airlines
  • 24/9-28/9
  • 4 total stops
  • 58h 45m total
  • England to Idaho
18/9
  • 18/9
  • 2 total stops
  • 53h 34m total
  • England to Idaho
Highest demand for flights based on searches. 15% potential increase in price (£89 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease (£17 potential savings vs. average return price).
Average for round-trip flights in July 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 4 July 2025.

Wed 24/913:45LHR - GEG
2 stops41h 30mUnited Airlines
Sun 28/905:15GEG - LHR
2 stops17h 15mUnited Airlines
Deal found 30/6£517
Wed 24/908:25LHR - GEG
2 stops18h 52mAmerican Airlines
Sun 28/913:30GEG - LHR
1 stop35h 40mAmerican Airlines
Deal found 2/7£519
Wed 24/914:50LHR - GEG
1 stop14h 13mLufthansa
Sun 28/912:35GEG - LHR
1 stop13h 50mLufthansa
Deal found 2/7£542
Wed 24/908:40LCY - GEG
2 stops20h 31mVirgin Atlantic
Sun 28/914:23GEG - LCY
2 stops34h 27mVirgin Atlantic
Deal found 1/7£582
Wed 24/907:45LCY - GEG
2 stops19h 00mDelta
Sun 28/913:18GEG - LCY
2 stops19h 22mDelta
Deal found 2/7£609
Sun 7/912:05LHR - BOI
2 stops17h 36mUnited Airlines
Sat 20/907:00BOI - LHR
2 stops16h 45mUnited Airlines
Deal found 2/7£618
Thu 28/810:45LGW - BOI
1 stop19h 09mMultiple Airlines
Sat 6/920:27BOI - LGW
1 stop31h 28mMultiple Airlines
Deal found 2/7£618
Fri 5/914:50LHR - BOI
1 stop13h 25mLufthansa
Sat 20/912:27BOI - LHR
1 stop12h 53mLufthansa
Deal found 2/7£621
Sat 6/908:40LCY - BOI
2 stops21h 14mMultiple Airlines
Sat 20/908:10BOI - LCY
2 stops22h 05mMultiple Airlines
Deal found 2/7£626
Fri 21/1118:00LHR - BOI
2 stops24h 39mMultiple Airlines
Sun 30/1106:15BOI - LHR
2 stops17h 15mMultiple Airlines
Deal found 3/7£628
Fri 5/906:10LHR - BOI
2 stops22h 38mAmerican Airlines
Sun 21/913:07BOI - LHR
2 stops33h 43mAmerican Airlines
Deal found 2/7£641
Wed 17/914:15MAN - GEG
2 stops29h 40mDelta
Sun 21/922:58GEG - MAN
2 stops30h 27mDelta
Deal found 3/7£645

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 4 July 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

LondonSpokane

LHR - GEG

LHRGEG

London Heathrow

Wed 24/9

13:45-23:15

2 stops41h 30m

Spokane

Sun 28/9

12:35-07:25

1 stop34h 50m

£517

LondonSpokane

LHR - GEG

LHRGEG

London Heathrow

Wed 24/9

08:25-19:17

2 stops18h 52m

Spokane

Sun 28/9

13:30-09:10

1 stop35h 40m

£519

LondonSpokane

LHR - GEG

LHRGEG

London Heathrow

Wed 24/9

14:50-21:03

1 stop14h 13m

Spokane

Sun 28/9

12:35-10:25

1 stop13h 50m

£542

LondonSpokane

LCY - GEG

LCYGEG

London City

Wed 24/9

08:40-21:11

2 stops20h 31m

Spokane

Sun 28/9

14:23-08:50

2 stops34h 27m

£582

LondonSpokane

LCY - GEG

LCYGEG

London City

Wed 24/9

07:45-18:45

2 stops19h 00m

Spokane

Sun 28/9

13:18-16:40

2 stops19h 22m

£609

LondonBoise

LGW - BOI

LGWBOI

London Gatwick

Thu 28/8

10:45-22:54

1 stop19h 09m

Boise Air Term. Gowen Fld

Sat 6/9

20:27-10:55

1 stop31h 28m

£618

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Sun 7/9

12:05-22:41

2 stops17h 36m

Boise Air Term. Gowen Fld

Sat 20/9

07:45-07:25

1 stop16h 40m

£618

LondonBoise

LCY - BOI

LCYBOI

London City

Sat 6/9

08:40-22:54

2 stops21h 14m

Boise Air Term. Gowen Fld

Sat 20/9

08:10-13:15

2 stops22h 05m

£626

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Fri 21/11

18:00-11:39

2 stops24h 39m

Boise Air Term. Gowen Fld

Sun 30/11

06:15-06:30

2 stops17h 15m

£628

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Fri 24/10

08:30-21:24

2 stops19h 54m

Boise Air Term. Gowen Fld

Mon 3/11

14:31-20:35

2 stops23h 04m

£639

Flights are sorted by cheapest return flights first.

Deals found on 3/7

Showing 1-10 of 57 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 4 July 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.

How much does it cost for a return flight from England to Idaho?

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 4 July 2025.
Read through reviews of airlines operating flights from England to Idaho, such as Delta, Alaska Airlines, andKLM. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Crew

8.5

Food

7.3

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
8.0
Very Good

Crew

8.5

Food

7.3

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Crew

8.5

Food

7.3

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Crew

8.5

Food

7.3

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Crew

8.5

Food

7.3

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Crew

8.5

Food

7.3

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 Lufthansa (£568), Icelandair (£753), and Finnair (£785).

  • 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 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 4 July 2025.
AirlineCheapestAverageFlexibilityOn-time
FinnairCheapest£509Average£675FlexibilityNo cancel feeOn-time76%
Search Finnair flights
KLMCheapest£522Average£728FlexibilityNo cancel feeOn-time75%
Search KLM flights
United AirlinesCheapest£526Average£782FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
LufthansaCheapest£527Average£633FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
IberiaCheapest£583Average£692FlexibilityNo cancel feeOn-time77%
Search Iberia flights
Virgin AtlanticCheapest£593Average£821FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
British AirwaysCheapest£604Average£829FlexibilityNo cancel feeOn-time70%
Search British Airways flights
IcelandairCheapest£625Average£769FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Air FranceCheapest£645Average£720FlexibilityNo cancel feeOn-time77%
Search Air France 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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