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Idaho Falls

$1,018+ Cheap flights from the United Kingdom to Idaho Falls (IDA)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/2. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — IDA
Mar 5 — Mar 121
Thu 3/5
Thu 3/12
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 February 3, 2026.

This The Travel House deal was found by Cheapflights users on 2/3. 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.
Mon 3/22:50 pm
LHR
-
IDA
1 stop29h 58m
Iberia
Sat 3/72:18 pm
IDA
-
LHR
2 stops48h 52m
Iberia
Deal found 2/3$1,018
This The Travel House deal was found by Cheapflights users on 2/3. 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 9/112:55 pm
LHR
-
IDA
1 stop15h 24m
Finnair
Fri 9/251:44 pm
IDA
-
LHR
1 stop34h 56m
Finnair
Deal found 2/3$1,020
This British Airways deal was found by Cheapflights users on 2/2. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/112:55 pm
LHR
-
IDA
1 stop15h 24m
Multiple Airlines
Fri 9/251:46 pm
IDA
-
LHR
1 stop14h 09m
Multiple Airlines
Deal found 2/2$1,042
This Expedia deal was found by Cheapflights users on 2/3. 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.
Mon 3/28:00 pm
LHR
-
IDA
2 stops28h 49m
Virgin Atlantic
Sat 3/71:10 pm
IDA
-
LHR
2 stops38h 40m
Virgin Atlantic
Deal found 2/3$1,046
This American Airlines deal was found by Cheapflights users on 2/2. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/19:45 am
LHR
-
IDA
2 stops18h 34m
American Airlines
Fri 9/251:46 pm
IDA
-
LHR
1 stop14h 09m
American Airlines
Deal found 2/2$1,079
This Flighttix deal was found by Cheapflights users on 2/3. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/24:30 pm
LHR
-
IDA
1 stop28h 18m
British Airways
Sat 3/72:18 pm
IDA
-
LHR
1 stop34h 57m
British Airways
Deal found 2/3$1,119
This Delta deal was found by Cheapflights users on 2/2. 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.
Tue 9/19:20 am
LHR
-
IDA
2 stops19h 54m
Delta
Fri 9/256:50 pm
IDA
-
LHR
2 stops18h 20m
Delta
Deal found 2/2$1,129
This United Airlines deal was found by Cheapflights users on 2/2. 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.
Mon 3/29:30 am
LHR
-
IDA
2 stops18h 28m
United Airlines
Mon 3/910:50 am
IDA
-
LHR
1 stop16h 50m
United Airlines
Deal found 2/2$1,132
This United Airlines deal was found by Cheapflights users on 2/2. 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.
Wed 2/187:30 am
LHR
-
IDA
2 stops33h 18m
United Airlines
Sun 2/225:33 pm
IDA
-
LHR
1 stop33h 07m
United Airlines
Deal found 2/2$1,151
This United Airlines deal was found by Cheapflights users on 2/1. 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.
Wed 3/46:00 am
MAN
-
IDA
2 stops40h 40m
United Airlines
Sun 3/85:30 pm
IDA
-
MAN
2 stops36h 50m
United Airlines
Deal found 2/1$1,286
This Icelandair deal was found by Cheapflights users on 2/3. 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 9/11:00 pm
LGW
-
IDA
2 stops16h 39m
Multiple Airlines
Fri 9/254:03 pm
IDA
-
LGW
2 stops15h 37m
Multiple Airlines
Deal found 2/3$4,416

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 February 3, 2026.

Round-trip from

$1,018
(The Travel House)

Popular in

December

Cheapest in

November

Average price

$866
From United Kingdom to Idaho Falls Fanning Field
Search Deals
High demand for flights, 0% potential price rise
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($47 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
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 February 3, 2026.
Use the filters below to find and compare flights from the United Kingdom to Idaho Falls that are best for you.

Fly from

United Kingdom

Fly to

Idaho Falls

Route

Depart

Return

Price

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Mon 3/2

2:50 pm-1:48 pm

1 stop29h 58m

Idaho Falls Fanning Field

Sat 3/7

2:18 pm-10:10 pm

2 stops48h 52m

$1,018

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Mon 3/2

8:00 pm-5:49 pm

2 stops28h 49m

Idaho Falls Fanning Field

Sat 3/7

1:10 pm-10:50 am

2 stops38h 40m

$1,046

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Mon 3/2

4:30 pm-1:48 pm

1 stop28h 18m

Idaho Falls Fanning Field

Sat 3/7

2:18 pm-8:15 am

1 stop34h 57m

$1,119

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Mon 3/2

9:30 am-8:58 pm

2 stops18h 28m

Idaho Falls Fanning Field

Mon 3/9

10:50 am-9:40 am

1 stop16h 50m

$1,132

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Wed 2/18

7:30 am-9:48 am

2 stops33h 18m

Idaho Falls Fanning Field

Sun 2/22

5:33 pm-9:40 am

1 stop33h 07m

$1,151

ManchesterIdaho Falls

MAN - IDA

MANIDA

Manchester

Wed 3/4

6:00 am-8:58 pm

2 stops21h 58m

Idaho Falls Fanning Field

Sun 3/8

5:30 pm-12:20 pm

2 stops36h 50m

$1,286

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/3

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

What is the cheapest month to book a flight from United Kingdom to Idaho Falls?

Currently, September is the cheapest month in which you can book a flight from United Kingdom to Idaho Falls (average of $820). Flying from United Kingdom to Idaho Falls in October is currently the most expensive (average of $1,178). 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.

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?

    Iberia, Virgin Atlantic, and British Airways can get you from United Kingdom to Idaho Falls in just under 28h 18m. Your travel time can differ by up to 1h 40m. 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, London Gatwick - Idaho Falls Fanning Field and Manchester - 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.

  • What is the cheapest month to book a flight from United Kingdom to Idaho Falls?

    Currently, September is the cheapest month in which you can book a flight from United Kingdom to Idaho Falls (average of $820). Flying from United Kingdom to Idaho Falls in October is currently the most expensive (average of $1,178). 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.

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