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$496+ Cheap flights from Idaho Falls (IDA) to the United Kingdom

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 6/15. Fares are subject to change and may not be available on all flights or dates of travel.
IDA — LHR
May 4 — May 111
Sun 5/4
Sun 5/11
1 adult, Economy
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Cheap flight deals from Idaho Falls to United Kingdom

Keep the following information in mind while searching for Idaho Falls to United Kingdom flight deals. Data was last updated April 29, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$1,091
(United Airlines)

One-way from

$496
(Kiwi.com)

Popular in

December

Cheapest in

November

Average price

$759
Provider with most accurate pricing for Idaho Falls Fanning Field-London (LON) flight deals.
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Provider most trusted by Cheapflights users for Idaho Falls Fanning Field-London (LON) flights.
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From Idaho Falls Fanning Field to United Kingdom
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One-way flight from Idaho Falls Fanning Field to United Kingdom
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Highest demand for flights based on searches. 3% potential increase in price ($43 potential increase over avg. RT price).
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Cheapest flight prices on average. 8% potential price decrease ($87 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from Idaho Falls to United Kingdom

Cheapest flights from Idaho Falls to United Kingdom
Explore the most affordable flight options available from Idaho Falls to United Kingdom. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 29, 2025.

This American Airlines deal was found by Cheapflights users on 4/28. 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.
Thu 7/316:51 amIDA - LHR
1 stop16h 34mAmerican Airlines
Fri 8/88:50 amLHR - IDA
2 stops19h 29mAmerican Airlines
Deal found 4/28$1,077
This United Airlines deal was found by Cheapflights users on 4/28. 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.
Thu 7/317:00 amIDA - LHR
2 stops16h 20mUnited Airlines
Fri 8/82:05 pmLHR - IDA
2 stops34h 17mUnited Airlines
Deal found 4/28$1,089
This Delta deal was found by Cheapflights users on 4/29. 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.
Thu 6/512:30 pmIDA - LHR
2 stops17h 40mDelta
Wed 6/1811:00 amLHR - IDA
1 stop14h 12mDelta
Deal found 4/29$1,167
This Air France deal was found by Cheapflights users on 4/28. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/22:55 pmIDA - LHR
1 stop11h 55mMultiple Airlines
Tue 8/126:15 amLHR - IDA
2 stops18h 57mMultiple Airlines
Deal found 4/28$3,936
This Air France deal was found by Cheapflights users on 4/28. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/111:20 amIDA - LHR
2 stops14h 35mAir France
Tue 8/126:15 amLHR - IDA
2 stops18h 57mAir France
Deal found 4/28$3,941
This KLM deal was found by Cheapflights users on 4/28. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/306:52 pmIDA - LHR
2 stops15h 43mKLM
Fri 8/86:30 amLHR - IDA
2 stops18h 42mKLM
Deal found 4/28$5,049

Cheapflights Fare Finder

Customize your flight search to find flights from Idaho Falls to United Kingdom 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 April 29, 2025.
Use the filters below to find and compare flights from Idaho Falls to the United Kingdom that are best for you.

Fly from

Idaho Falls

Fly to

United Kingdom

Route

Depart

Return

Price

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Thu 7/31

7:00 am-12:20 pm

1 stop22h 20m

London Heathrow

Fri 8/8

5:40 pm-5:22 pm

2 stops30h 42m

$1,091

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Thu 6/5

12:30 pm-1:10 pm

2 stops17h 40m

London Heathrow

Wed 6/18

11:00 am-6:12 pm

1 stop14h 12m

$1,167

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Sat 8/2

2:55 pm-9:50 am

1 stop11h 55m

London Heathrow

Tue 8/12

6:15 am-6:12 pm

2 stops18h 57m

$3,936

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Fri 8/1

11:20 am-8:55 am

2 stops14h 35m

London Heathrow

Tue 8/12

6:15 am-6:12 pm

2 stops18h 57m

$3,941

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Wed 7/30

6:52 pm-5:35 pm

2 stops15h 43m

London Heathrow

Fri 8/8

6:30 am-6:12 pm

2 stops18h 42m

$5,049

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Best time to book a flight from Idaho Falls to United Kingdom

Have a flexible travel schedule? Discover the best time to fly to United Kingdom from Idaho Falls 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 Idaho Falls to the United Kingdom

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

Currently, November is the cheapest month in which you can book a flight from Idaho Falls to United Kingdom (average of $661). Flying from Idaho Falls to United Kingdom in June is currently the most expensive (average of $1,110). 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 IDA to GB?

Find hourly flight availability from Idaho Falls to United Kingdom. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 29, 2025.

When flying from Idaho Falls to United Kingdom, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in United Kingdom by month

Plan your trip to United Kingdom by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in United Kingdom ranges from 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit United Kingdom when rainfall is around 1.6 in.

Temperature in United Kingdom by month

Plan your trip to United Kingdom by taking into account the average temperature totals by month.

If weather is an important factor for your trip to United Kingdom, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

Reviews of airlines servicing United Kingdom

Get insights into the airlines that provide service to United Kingdom. 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 United Kingdom. Reviews last updated April 29, 2025.
Delta
8.0
Very good
7,936 reviews

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,936 reviews
Delta
8.0
Very good
7,936 reviews

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,333 reviews
Delta
8.0
Very good
7,936 reviews

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Air France
7.4
Good
1,446 reviews
Delta
8.0
Very good
7,936 reviews

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,696 reviews
Delta
8.0
Very good
7,936 reviews

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,936 reviews

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from Idaho Falls to United Kingdom. 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 from for flights from Idaho Falls to United Kingdom?

    Located just 3.8 mi from the city center, Idaho Falls Fanning Field (IDA) is the airport most travelers will use when flying to United Kingdom from Idaho Falls.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Idaho Falls to United Kingdom 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 Idaho Falls to United Kingdom?

    Currently, November is the cheapest month in which you can book a flight from Idaho Falls to United Kingdom (average of $661). Flying from Idaho Falls to United Kingdom in June is currently the most expensive (average of $1,110). 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 Idaho Falls to United Kingdom

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Idaho Falls to United Kingdom

Discover the top 2 airlines that operate flights from Idaho Falls to United Kingdom. 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 2,558,603 searches. Data last updated April 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$720Average$1,392FlexibilityNo cancel feeOn-time69%
DeltaCheapest$815Average$1,207FlexibilityNo cancel feeOn-timeN/A

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