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$651+ Cheap flights from England to Idaho

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 12/23. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — BOI
déc. 13 — déc. 201
sam. 12/13
sam. 12/20
1 adult, Economy
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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 novembre 13, 2025.

This United Airlines deal was found by Cheapflights users on 11/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/96:35 amLHR - BOI
2 stops18h 32mUnited Airlines
lun. 12/156:20 amBOI - LHR
1 stop20h 20mUnited Airlines
Deal found 11/11$727
This United Airlines deal was found by Cheapflights users on 11/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/96:35 amLHR - BOI
2 stops18h 32mUnited Airlines
dim. 12/145:25 pmBOI - LHR
1 stop33h 15mUnited Airlines
Deal found 11/11$737
This Kiwi.com deal was found by Cheapflights users on 11/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/911:35 amLHR - BOI
1 stop13h 32mLufthansa
lun. 12/152:49 pmBOI - LHR
1 stop11h 51mLufthansa
Deal found 11/11$738
This The Travel House deal was found by Cheapflights users on 11/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure The Travel House is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/97:40 amLHR - BOI
2 stops17h 27mLufthansa
dim. 12/142:49 pmBOI - LHR
2 stops37h 01mLufthansa
Deal found 11/11$755
This Justfly.com deal was found by Cheapflights users on 11/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/811:35 amLHR - BOI
1 stop15h 08mLufthansa
lun. 12/1510:40 amBOI - LHR
1 stop16h 00mLufthansa
Deal found 11/11$807
This Delta deal was found by Cheapflights users on 11/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/86:30 amLHR - GEG
2 stops21h 40mDelta
mar. 12/239:16 amGEG - LHR
1 stop19h 34mDelta
Deal found 11/11$866
This Cheapflightsfares deal was found by Cheapflights users on 11/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 12/117:40 amLHR - BOI
2 stops17h 27mLufthansa
ven. 1/912:19 pmBOI - LHR
1 stop12h 36mLufthansa
Deal found 11/13$879
This Justfly.com deal was found by Cheapflights users on 11/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/81:25 pmLHR - BOI
2 stops40h 20mAir Canada
lun. 12/159:40 amBOI - LHR
2 stops18h 40mAir Canada
Deal found 11/11$881
This Justfly.com deal was found by Cheapflights users on 11/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 12/411:55 amLGW - BOI
2 stops18h 55mMultiple Airlines
lun. 12/158:16 pmBOI - LGW
2 stops31h 39mMultiple Airlines
Deal found 11/13$940
This Expedia deal was found by Cheapflights users on 11/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/292:45 pmLHR - GEG
1 stop14h 30mVirgin Atlantic
lun. 1/51:15 pmGEG - LHR
2 stops35h 30mVirgin Atlantic
Deal found 11/12$991
This Icelandair deal was found by Cheapflights users on 11/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 12/1111:55 amLGW - BOI
2 stops18h 15mMultiple Airlines
ven. 1/99:02 amBOI - LGW
2 stops18h 53mMultiple Airlines
Deal found 11/12$998
This Icelandair deal was found by Cheapflights users on 11/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/811:55 amLGW - BOI
2 stops18h 01mMultiple Airlines
mar. 12/1611:45 amBOI - LGW
2 stops16h 10mMultiple Airlines
Deal found 11/11$1,005

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 novembre 13, 2025.

Round-trip from

$727
(United Airlines)

One-way from

$651
(Kiwi.com)

Popular in

July

Cheapest in

September

Average price

$850
From England to Idaho
Search Deals
One-way flight from England to Idaho
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($144 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($27 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated novembre 13, 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

mar. 12/9

6:35 am-6:07 pm

2 stops18h 32m

Boise Air Term. Gowen Fld

lun. 12/15

6:20 am-9:40 am

1 stop20h 20m

$727

LondonSpokane

LHR - GEG

LHRGEG

London Heathrow

mar. 3/10

6:35 am-9:20 pm

2 stops21h 45m

Spokane

mar. 3/17

5:00 am-6:20 am

2 stops18h 20m

$732

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

mar. 12/9

11:35 am-6:07 pm

1 stop13h 32m

Boise Air Term. Gowen Fld

lun. 12/15

2:49 pm-9:40 am

1 stop11h 51m

$738

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

lun. 4/20

9:00 am-9:54 am

2 stops31h 54m

Boise Air Term. Gowen Fld

lun. 4/27

2:40 pm-12:20 pm

1 stop14h 40m

$751

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

mer. 4/29

10:50 am-10:35 pm

2 stops18h 45m

Boise Air Term. Gowen Fld

dim. 5/3

2:11 pm-10:10 am

1 stop36h 59m

$760

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

mer. 2/11

10:05 am-9:23 pm

1 stop18h 18m

Boise Air Term. Gowen Fld

mer. 2/18

6:25 am-9:40 am

1 stop20h 15m

$765

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

lun. 2/9

10:25 am-10:57 pm

1 stop19h 32m

Boise Air Term. Gowen Fld

mar. 2/17

10:53 am-7:25 am

1 stop13h 32m

$765

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

lun. 2/9

1:45 pm-9:23 pm

1 stop14h 38m

Boise Air Term. Gowen Fld

mer. 2/18

12:16 pm-7:55 am

1 stop12h 39m

$765

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

mar. 2/10

11:35 am-6:07 pm

1 stop13h 32m

Boise Air Term. Gowen Fld

mer. 2/18

2:40 pm-9:40 am

1 stop12h 00m

$765

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

lun. 2/9

1:45 pm-9:23 pm

1 stop14h 38m

Boise Air Term. Gowen Fld

jeu. 2/19

10:25 am-9:40 am

1 stop16h 15m

$769

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/11

Showing 1-10 of 58 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 round-trip 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 $722). Flying from England to Idaho in July is currently the most expensive (average of $905). 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.

How much does it cost to fly round-trip from England to Idaho?

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 13h 32m. England and Idaho are separated by a distance of 4829 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from England to Idaho one-way?

    For one-way options, check prices for Lufthansa. According to our data, you can fly for as low as $651. Users have also found prices from $928 and $1,617 on Finnair and Icelandair, respectively.

  • 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 vacation 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 $722). Flying from England to Idaho in July is currently the most expensive (average of $905). 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

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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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