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Idaho Falls

$963+ Cheap flights from the United Kingdom to Idaho Falls (IDA)

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 7/22. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — IDA
Aug 9 — Aug 161
Sun 8/9
Sun 8/16
1 adult, Economy
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Cheap flight deals from United Kingdom to Idaho Falls

Cheapest flights from United Kingdom to Idaho Falls
Explore the most affordable flight options available from United Kingdom to Idaho Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 10, 2026.

This SmartFares deal was found by Cheapflights users on 7/8. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/145:00 pm
LHR
-
IDA
1 stop29h 20m
Alaska Airlines
Mon 9/282:01 pm
IDA
-
LHR
1 stop18h 04m
Alaska Airlines
Deal found 7/8$1,004
This The Travel House deal was found by Cheapflights users on 7/10. 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.
Tue 9/110:05 am
LHR
-
IDA
1 stop18h 15m
Finnair
Fri 9/257:00 am
IDA
-
LHR
2 stops20h 15m
Finnair
Deal found 7/10$1,040
This Alaska Airlines deal was found by Cheapflights users on 7/6. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/32:45 pm
LHR
-
IDA
1 stop14h 54m
Alaska Airlines
Mon 12/76:15 am
IDA
-
LHR
1 stop23h 05m
Alaska Airlines
Deal found 7/6$1,060
This TravelUp deal was found by Cheapflights users on 7/8. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/145:45 pm
LHR
-
IDA
2 stops31h 32m
Virgin Atlantic
Mon 9/281:05 pm
IDA
-
LHR
1 stop13h 55m
Virgin Atlantic
Deal found 7/8$1,063
This TravelUp deal was found by Cheapflights users on 7/8. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/146:15 am
LHR
-
IDA
2 stops23h 07m
Multiple Airlines
Mon 9/281:05 pm
IDA
-
LHR
1 stop13h 55m
Multiple Airlines
Deal found 7/8$1,064
This The Travel House deal was found by Cheapflights users on 7/10. 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.
Sat 10/108:55 am
LHR
-
IDA
1 stop19h 47m
Finnair
Sun 10/181:39 pm
IDA
-
LHR
2 stops33h 36m
Finnair
Deal found 7/10$1,066
This Globehunters deal was found by Cheapflights users on 7/7. 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 Globehunters is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/110:55 am
LHR
-
IDA
1 stop14h 25m
KLM
Fri 9/251:05 pm
IDA
-
LHR
1 stop13h 55m
KLM
Deal found 7/7$1,072
This Flightcatchers deal was found by Cheapflights users on 7/8. 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 Flightcatchers is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/14:20 pm
LHR
-
IDA
2 stops33h 00m
Virgin Atlantic
Fri 9/251:05 pm
IDA
-
LHR
2 stops17h 00m
Virgin Atlantic
Deal found 7/8$1,095
This Icelandair deal was found by Cheapflights users on 7/7. 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.
Tue 9/13:40 pm
LGW
-
IDA
2 stops38h 16m
Multiple Airlines
Fri 9/252:01 pm
IDA
-
LGW
2 stops17h 39m
Multiple Airlines
Deal found 7/7$1,174
This The Travel House deal was found by Cheapflights users on 7/8. 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.
Fri 10/24:50 pm
MAN
-
IDA
2 stops35h 30m
Finnair
Wed 10/71:50 pm
IDA
-
MAN
2 stops18h 40m
Finnair
Deal found 7/8$1,235
This ChecknFly deal was found by Cheapflights users on 7/9. 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 ChecknFly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/3012:05 pm
MAN
-
IDA
2 stops17h 34m
Multiple Airlines
Thu 8/206:18 am
IDA
-
MAN
2 stops27h 37m
Multiple Airlines
Deal found 7/9$1,556
This ChecknFly deal was found by Cheapflights users on 7/9. 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 ChecknFly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/12:25 pm
MAN
-
IDA
2 stops56h 12m
Multiple Airlines
Sat 8/226:18 am
IDA
-
MAN
2 stops27h 37m
Multiple Airlines
Deal found 7/9$1,640

Find flight deals from United Kingdom to Idaho Falls

Keep the following information in mind while searching for United Kingdom to Idaho Falls flight deals. Data was last updated July 10, 2026.

Round-trip from

$1,004
(SmartFares)

One-way from

$963
(Kiwi.com)
From United Kingdom to Idaho Falls Fanning Field
Search Deals
One-way flight from United Kingdom to Idaho Falls Fanning Field
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from United Kingdom to Idaho Falls 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 July 10, 2026.
Use the filters below to find and compare flights from the United Kingdom to Idaho Falls that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Tue 9/1

10:05 am-9:20 pm

1 stop18h 15m

Idaho Falls Fanning Field

Fri 9/25

7:00 am-10:15 am

2 stops20h 15m

$1,040

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Thu 12/3

2:45 pm-10:39 pm

1 stop14h 54m

Idaho Falls Fanning Field

Mon 12/7

6:15 am-12:20 pm

1 stop23h 05m

$1,060
Quickest round-trip

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Tue 9/1

10:55 am-6:20 pm

1 stop14h 25m

Idaho Falls Fanning Field

Fri 9/25

1:05 pm-10:00 am

1 stop13h 55m

$1,072

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Tue 9/1

10:55 am-6:20 pm

1 stop14h 25m

Idaho Falls Fanning Field

Fri 9/25

1:05 pm-10:00 am

1 stop13h 55m

$1,106

LondonIdaho Falls

LGW - IDA

LGWIDA

London Gatwick

Tue 9/1

3:40 pm-10:56 pm

2 stops38h 16m

Idaho Falls Fanning Field

Fri 9/25

2:01 pm-2:40 pm

2 stops17h 39m

$1,174

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Sat 10/10

10:55 am-10:20 pm

1 stop18h 25m

Idaho Falls Fanning Field

Sun 10/18

6:56 pm-10:00 am

1 stop32h 04m

$1,189

ManchesterIdaho Falls

MAN - IDA

MANIDA

Manchester

Fri 10/2

4:50 pm-9:20 pm

2 stops35h 30m

Idaho Falls Fanning Field

Wed 10/7

1:50 pm-3:30 pm

2 stops18h 40m

$1,235

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Thu 12/3

6:35 am-5:22 pm

2 stops17h 47m

Idaho Falls Fanning Field

Mon 12/7

2:35 pm-9:40 am

1 stop12h 05m

$1,272

ManchesterIdaho Falls

MAN - IDA

MANIDA

Manchester

Mon 8/24

10:35 am-3:23 pm

2 stops35h 48m

Idaho Falls Fanning Field

Mon 8/31

4:04 pm-6:30 am

2 stops31h 26m

$1,871

LondonIdaho Falls

LGW - IDA

LGWIDA

London Gatwick

Thu 7/23

1:00 pm-10:39 pm

2 stops40h 39m

Idaho Falls Fanning Field

Fri 7/31

7:15 am-2:40 pm

2 stops24h 25m

$1,931

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/8

Showing 1-10 of 20 resultsSorted by cheapest first
1
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Best time to book a flight from United Kingdom to Idaho Falls

Have a flexible travel schedule? Discover the best time to fly to Idaho Falls from United Kingdom 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 the United Kingdom to Idaho Falls
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from United Kingdom to Idaho Falls. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Idaho Falls from United Kingdom?

    Most people fly into Idaho Falls Fanning Field (IDA) if they book a flight to Idaho Falls from United Kingdom. Fanning Field is conveniently located just 3.8 mi from Idaho Falls’s city center.

  • How long is the flight from United Kingdom to Idaho Falls?

    Finnair, Alaska Airlines, and KLM can get you from United Kingdom to Idaho Falls in just under 14h 25m. Your travel time can differ by up to 3h 50m. United Kingdom and Idaho Falls are separated by a distance of 4705 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the most popular routes from United Kingdom to Idaho Falls?

    The most popular flight routes from United Kingdom to Idaho Falls are London Heathrow - Idaho Falls Fanning Field, Manchester - Idaho Falls Fanning Field and London Gatwick - Idaho Falls Fanning Field.

  • Can I find deals for flights from United Kingdom to Idaho Falls that include hotel bookings?

    Yes. In addition to deals on United Kingdom to Idaho Falls flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from United Kingdom to Idaho Falls?

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

  • Can I find deals for business class flights from United Kingdom to Idaho Falls?

    Yes. Cheapflights offers flight deals from United Kingdom to Idaho Falls by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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