Cheap flights from London to Idaho Falls from £329
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 14/9. Fares are subject to change and may not be available on all flights or dates of travel.
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 11 July 2025.
Round-trip from | £648 |
---|---|
One-way from | £329 |
Popular in | May |
Cheapest in | November |
Average price | £883 |
Find flight deals from London to Idaho Falls
Cheapest flights from London to Idaho FallsExplore 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 11 July 2025.
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 11 July 2025.
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 11 July 2025.
Use the filters below to find and compare flights from London to Idaho Falls that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
LondonIdaho Falls
LHR - IDA
LHRIDA
London Heathrow
Sat 22/11
16:30-12:19
1 stop26h 49m
Idaho Falls Fanning Field
Wed 26/11
13:50-12:15
1 stop15h 25m
LondonIdaho Falls
LHR - IDA
LHRIDA
London Heathrow
Sat 22/11
06:20-18:14
2 stops18h 54m
Idaho Falls Fanning Field
Wed 26/11
06:05-06:25
2 stops17h 20m
LondonIdaho Falls
LGW - IDA
LGWIDA
London Gatwick
Sat 6/9
13:00-22:39
2 stops16h 39m
Idaho Falls Fanning Field
Sat 13/9
06:13-14:40
2 stops25h 27m
LondonIdaho Falls
LHR - IDA
LHRIDA
London Heathrow
Sat 6/9
10:55-18:11
1 stop14h 16m
Idaho Falls Fanning Field
Sat 13/9
13:06-14:15
2 stops18h 09m
LondonIdaho Falls
LHR - IDA
LHRIDA
London Heathrow
Sat 6/9
09:50-22:39
1 stop19h 49m
Idaho Falls Fanning Field
Sat 13/9
15:57-13:40
1 stop14h 43m
LondonIdaho Falls
LHR - IDA
LHRIDA
London Heathrow
Mon 25/8
07:25-20:54
2 stops20h 29m
Idaho Falls Fanning Field
Mon 1/9
16:15-09:40
1 stop34h 25m
LondonIdaho Falls
LHR - IDA
LHRIDA
London Heathrow
Sun 24/8
15:10-12:16
1 stop28h 06m
Idaho Falls Fanning Field
Sun 31/8
13:17-06:25
1 stop34h 08m
LondonIdaho Falls
LHR - IDA
LHRIDA
London Heathrow
Sun 14/9
20:50-15:20
3 stops49h 30m
LondonIdaho Falls
LGW - IDA
LGWIDA
London Gatwick
Wed 16/7
08:50-17:04
3 stops39h 14m
LondonIdaho Falls
LHR - IDA
LHRIDA
London Heathrow
Thu 17/7
10:55-22:29
1 stop18h 34m
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.
Cheapflights Insights
Everything you need to know about your flight from London to Idaho Falls
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 11 July 2025.
Read through reviews of airlines operating flights from London to Idaho Falls, such as Delta, United Airlines, andAmerican Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Crew
Comfort
Boarding
Entertainment
Overall
Food
Reviews
Michael,Jul 2025
AMS - ATL
Crew
Comfort
Boarding
Entertainment
Overall
Food
Reviews
Michael,Jul 2025
AMS - ATL
Crew
Comfort
Boarding
Entertainment
Overall
Food
Reviews
Michael,Jul 2025
AMS - ATL
Crew
Comfort
Boarding
Entertainment
Overall
Food
Reviews
Michael,Jul 2025
AMS - ATL
Crew
Comfort
Boarding
Entertainment
Overall
Food
Reviews
Michael,Jul 2025
AMS - ATL
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.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes for London to Idaho Falls
See prices for flight routes from nearby airports that may be better suited for you.
Top 3 airlines flying from London to Idaho Falls
Discover the top 3 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 11 July 2025.
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.