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Cheap flights from London to Idaho Falls from £767

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 22/11. Fares are subject to change and may not be available on all flights or dates of travel.
LON — IDA
3 Dec — 10 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from London to Idaho Falls

Enter your travel dates to find the best prices.

Cheapest flights from London to Idaho Falls
Explore the most affordable flight options available from London to Idaho Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3 November 2025.

Sat 22/1106:20LHR - IDA
2 stops18h 57mDelta
Wed 26/1106:00IDA - LHR
2 stops21h 30mDelta
Deal found 31/10£767
Mon 1/1212:30LGW - IDA
2 stops31h 57mAmerican Airlines
Mon 8/1213:58IDA - LGW
2 stops34h 32mAmerican Airlines
Deal found 1/11£775
Mon 1/1217:50LHR - IDA
2 stops35h 31mVirgin Atlantic
Mon 8/1213:17IDA - LHR
1 stop13h 43mVirgin Atlantic
Deal found 2/11£804
Mon 1/1218:00LHR - IDA
2 stops46h 47mUnited Airlines
Mon 8/1210:58IDA - LHR
2 stops17h 07mUnited Airlines
Deal found 1/11£844
Mon 1/1216:30LHR - IDA
1 stop27h 57mMultiple Airlines
Mon 8/1213:58IDA - LHR
1 stop14h 42mMultiple Airlines
Deal found 1/11£1,121

Cheap flight deals from London to Idaho Falls

Discover tips and strategies to find the most affordable flight options for your journey from London (LON) to Idaho Falls (IDA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 3 November 2025.

Round-trip from

£767

Popular in

May

Cheapest in

November

Average price

£648
Delta
  • Delta
  • 22/11-26/11
  • 4 total stops
  • 40h 27m total
  • London to Idaho Falls
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£84 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£18 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
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Cheapflights Fare Finder

 
Customise your flight search to find flights from London 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 858,174 searches. Data last updated 3 November 2025.
Use the filters below to find and compare flights from London to Idaho Falls that are best for you.

Fly from

London

Fly to

Idaho Falls

Route

Depart

Return

Price

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Sat 22/11

06:20-18:17

2 stops18h 57m

Idaho Falls Fanning Field

Wed 26/11

06:00-10:30

2 stops21h 30m

£767

LondonIdaho Falls

LGW - IDA

LGWIDA

London Gatwick

Mon 1/12

12:30-13:27

2 stops31h 57m

Idaho Falls Fanning Field

Mon 8/12

13:58-07:30

2 stops34h 32m

£775

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Mon 1/12

17:50-22:21

2 stops35h 31m

Idaho Falls Fanning Field

Mon 8/12

13:17-10:00

1 stop13h 43m

£804

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Mon 1/12

18:00-09:47

2 stops46h 47m

Idaho Falls Fanning Field

Mon 8/12

07:00-09:40

1 stop19h 40m

£844

Flights are sorted by cheapest return flights first.

Deals found on 31/10

Best time to book a flight from London to Idaho Falls

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

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

Currently, September is the cheapest month in which you can book a flight from London to Idaho Falls (average of £623). Flying from London to Idaho Falls in December is currently the most expensive (average of £957). 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’s the top stopover airport for flights from London to Idaho Falls?

Share of one-stop return flights from London to Idaho Falls chosen by Cheapflights users in the past 12 months, using the same stopover each way.

Denver (DEN) – chosen by Cheapflights users on 56% of one-stop itineraries from London to Idaho Falls on Cheapflights.

What’s the cheapest stopover airport for flights from London to Idaho Falls?

Average return fare for one-stop flights from London to Idaho Falls, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

Dallas (DFW) is the most affordable one-stop option, with an average return flight price of £683.

What’s the fastest stopover option from London to Idaho Falls?

Shortest average travel time for one-stop one-way flights from London to Idaho Falls, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.

Flights via Denver (DEN) have the shortest average one-way travel time for one-stop routes: 13h 15m.

Which airport typically offers the quickest stopover for flights from London to Idaho Falls?

Average stopover duration for one-stop one-way flights from London to Idaho Falls, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Denver (DEN) offer the fastest connection on this route, with an average stopover time of 1h 34m.

Reviews of airlines servicing Idaho Falls

Get insights into the airlines that provide service to Idaho Falls. 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 Falls. Reviews last updated 3 November 2025.
Read through reviews of airlines operating flights from London to Idaho Falls, such as Virgin Atlantic and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Virgin Atlantic
7.5
Good
671 reviews
Check prices

Crew

8.1

Food

6.9

Boarding

7.7

Comfort

7.3

Entertainment

7.5

Overall

7.5

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
Virgin Atlantic
7.5
Good
671 reviews
Virgin Atlantic
7.5
Good
671 reviews
Check prices

Crew

8.1

Food

6.9

Boarding

7.7

Comfort

7.3

Entertainment

7.5

Overall

7.5

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
United Airlines
7.4
Good
8,997 reviews
Virgin Atlantic
7.5
Good
671 reviews
Check prices

Crew

8.1

Food

6.9

Boarding

7.7

Comfort

7.3

Entertainment

7.5

Overall

7.5

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!

Related info for your journey

Find useful and relevant information for your journey from London 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 London?

    For a flight from London to Idaho Falls, you will be flying into Fanning Field. Idaho Falls Fanning Field (IDA) is just 3.8 mi from the center of the city. Fanning Field is the only Idaho Falls airport and it handles 0 inbound flights from London per day. 2 airlines have flights to Idaho Falls Fanning Field from London on a regular basis.

  • How long is the flight from London to Idaho Falls?

    For as low as £767, Delta can have you in Idaho Falls from London in 18h 57m. There are 4705 mi between London and Idaho Falls. Both multi-stop and direct flights can be found to your destination and back.

  • What are the cheapest airlines flying from London to Idaho Falls round-trip?

    Our cheapest airline available from London to Idaho Falls is Virgin Atlantic. Our recent data shows that you can find tickets from as low as £662 on this airline. An additional option worth looking into is United Airlines, starting at £774. Virgin Atlantic is 16% cheaper than the average price of flights available within the next 90 days to this destination.

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

    Yes. In addition to deals on London to Idaho Falls flights, Cheapflights offers holiday packages that include both flights and hotel.

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

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

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

    Yes. Cheapflights offers flight deals from London 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 London to Idaho Falls?

    Currently, September is the cheapest month in which you can book a flight from London to Idaho Falls (average of £623). Flying from London to Idaho Falls in December is currently the most expensive (average of £957). 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

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Top 2 airlines flying from London to Idaho Falls

Discover the top 2 airlines that operate flights from London to Idaho Falls. 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 3 November 2025.
AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest£662Average£919FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
United AirlinesCheapest£774Average£1,058FlexibilityNo cancel feeOn-time69%
Search United Airlines 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 London to Idaho Falls?

Deals for London to Idaho Falls 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 London to Idaho Falls?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from London to Idaho Falls for you. Better yet — we are completely free to use.

Can Cheapflights find flights from London to Idaho Falls with no change fees?

Certainly. Search results for flights to Idaho Falls from London shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from London to Idaho Falls become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Idaho Falls from London today and book when prices fit your budget.

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