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£516 Cheap Flights from London (LHR) to Idaho Falls (IDA)

View £516 flight on Mon, 28 Sept 2026Opens in a new window

Popular airlines from Heathrow Airport (LHR) to Idaho Falls Regional Airport (IDA)

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Cheap Flights from London (LHR) to Idaho Falls (IDA)

Prices were available within the past 7 days and start at £516 for one-way flights and £760 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Mon, 8 Mar - Mon, 22 Mar
LHR
London
IDA
Idaho Falls
£760 Return, found 3 days ago
£760
Return
found 3 days ago
Select Alaska Airlines flight, departing Mon, 8 Mar from London to Idaho Falls, returning Mon, 22 Mar, priced at £760 found 3 days ago
Alaska Airlines
Wed, 30 Sept - Wed, 7 Oct
LHR
London
IDA
Idaho Falls
£773 Return, found 2 days ago
£773
Return
found 2 days ago
Select Alaska Airlines flight, departing Wed, 30 Sept from London to Idaho Falls, returning Wed, 7 Oct, priced at £773 found 2 days ago
Alaska Airlines
Tue, 1 Sept - Wed, 9 Sept
LHR
London
IDA
Idaho Falls
£787 Return, found 6 days ago
£787
Return
found 6 days ago
Select Alaska Airlines flight, departing Tue, 1 Sept from London to Idaho Falls, returning Wed, 9 Sept, priced at £787 found 6 days ago
Icelandair
Tue, 30 Mar - Tue, 13 Apr
LHR
London
IDA
Idaho Falls
£792 Return, found 2 days ago
£792
Return
found 2 days ago
Select Icelandair flight, departing Tue, 30 Mar from London to Idaho Falls, returning Tue, 13 Apr, priced at £792 found 2 days ago
KLM
Mon, 8 Mar - Mon, 22 Mar
LHR
London
IDA
Idaho Falls
£793 Return, found 3 days ago
£793
Return
found 3 days ago
Select KLM flight, departing Mon, 8 Mar from London to Idaho Falls, returning Mon, 22 Mar, priced at £793 found 3 days ago
Air France
Mon, 8 Mar - Mon, 22 Mar
LHR
London
IDA
Idaho Falls
£798 Return, found 3 days ago
£798
Return
found 3 days ago
Select Air France flight, departing Mon, 8 Mar from London to Idaho Falls, returning Mon, 22 Mar, priced at £798 found 3 days ago
Alaska Airlines
Thu, 6 May - Thu, 13 May
LHR
London
IDA
Idaho Falls
£806 Return, found 5 hours ago
£806
Return
found 5 hours ago
Select Alaska Airlines flight, departing Thu, 6 May from London to Idaho Falls, returning Thu, 13 May, priced at £806 found 5 hours ago
Air France
Mon, 8 Mar - Mon, 22 Mar
LHR
London
IDA
Idaho Falls
£807 Return, found 3 days ago
£807
Return
found 3 days ago
Select Air France flight, departing Mon, 8 Mar from London to Idaho Falls, returning Mon, 22 Mar, priced at £807 found 3 days ago
Virgin Atlantic
Mon, 8 Mar - Mon, 22 Mar
LHR
London
IDA
Idaho Falls
£808 Return, found 3 days ago
£808
Return
found 3 days ago
Select Virgin Atlantic flight, departing Mon, 8 Mar from London to Idaho Falls, returning Mon, 22 Mar, priced at £808 found 3 days ago
KLM
Mon, 8 Mar - Mon, 22 Mar
LHR
London
IDA
Idaho Falls
£811 Return, found 3 days ago
£811
Return
found 3 days ago
Select KLM flight, departing Mon, 8 Mar from London to Idaho Falls, returning Mon, 22 Mar, priced at £811 found 3 days ago

Alternative airports near Idaho Falls

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Idaho Falls Regional IDA. Cheapest and Closest option available. Average driving time to city centre is 5 minutes. Flights from £848
IDA
Idaho Falls Regional
CheapestClosest
Average driving time to city centre5 min
Flights from £848

Frequently asked questions

How much does a flight from London (LHR-Heathrow) to Idaho Falls, ID (IDA-Idaho Falls Regional) cost?
You can find cheap one-way flights from £516 and cheap return flights from £760 LHR to IDA with Expedia. Return flights often range between £654 and £2953. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when LHR to IDA ticket fares go up or down.
What is the cheapest month to fly from London (LHR-Heathrow) to Idaho Falls, ID (IDA-Idaho Falls Regional)?
The cheapest months to fly from LHR to IDA are typically during off-peak season when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you are able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from London (LHR-Heathrow) to Idaho Falls, ID (IDA-Idaho Falls Regional)?
Enter LHR to IDA and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from London (LHR-Heathrow) to Idaho Falls, ID (IDA-Idaho Falls Regional)?
Virgin Atlantic is one of the cheapest airlines offering connecting return flights from London Heathrow (LHR) to Idaho Falls, ID (IDA-Idaho Falls Regional), with prices starting from around £653 for flights that can be booked for departure within the next year. These flights typically include a layover in John F. Kennedy Intl. (JFK). Prices are per adult, for economy/coach class. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.
How do I find cheap flights from London (LHR-Heathrow) to Idaho Falls, ID (IDA-Idaho Falls Regional)?
To find a cheap flight from London (LHR-Heathrow) to Idaho Falls, ID (IDA-Idaho Falls Regional), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from London (LHR-Heathrow) to Idaho Falls, ID (IDA-Idaho Falls Regional)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from London (LHR-Heathrow) to Idaho Falls, ID (IDA-Idaho Falls Regional)?
There are approximately 45 connecting flights per day from London Heathrow (LHR) to Idaho Falls Regional (IDA). Some common connection points include Dublin (DUB), John F. Kennedy Intl. (JFK), and Los Angeles Intl. (LAX).
What is the earliest flight from London (LHR-Heathrow) to Idaho Falls, ID (IDA-Idaho Falls Regional)?
The earliest flight from London Heathrow (LHR) to Idaho Falls, ID (IDA-Idaho Falls Regional) typically departs around 6:15 AM. This service is offered by Air France and Delta. This is a seasonal service, active in May, July, and October. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from London (LHR-Heathrow) to Idaho Falls, ID (IDA-Idaho Falls Regional)?
You'll typically find the most flights from London Heathrow (LHR) to Idaho Falls Regional (IDA) on a Friday, with around 66 flights available. This gives you a good selection of options for your journey. Major airlines on this route include British Airways, Delta, and United. Looking at the flight schedule, Fridays have notably more flight options compared to other days of the week, such as Saturdays which see around 47 flights.
What are the most popular departure times for flights from London (LHR-Heathrow) to Idaho Falls, ID (IDA-Idaho Falls Regional)?
The most popular departure times for flights from London Heathrow (LHR) to Idaho Falls Regional (IDA) are between 12pm and 3pm. Many major carriers, including British Airways, United and Delta, offer flights during this window. Many travellers prefer this timing as it allows for a morning start and an afternoon arrival, giving you time to settle in at your destination.
How long does it take to fly from London (LHR-Heathrow) to Idaho Falls, ID (IDA-Idaho Falls Regional)?
There are no nonstop flights from London (LHR-Heathrow) to Idaho Falls, ID (IDA-Idaho Falls Regional). The journey covers a distance of approximately 7,578 kilometres (4,709 miles). Flights with one stop typically take around 13 hours 18 minutes. If you have two or more stops, your travel time will be longer, usually around 18 hours 48 minutes. Keep in mind that actual flight times can vary due to factors like routing, weather, and wind patterns.
Can you fly business or first class from London (LHR-Heathrow) to Idaho Falls, ID (IDA-Idaho Falls Regional)?
You can fly business class between LHR and IDA. Airlines that offer business class service on this route include:

  • Alaska Airlines
  • Delta

How do I earn miles on a London (LHR-Heathrow) to Idaho Falls, ID (IDA-Idaho Falls Regional) flight with Expedia?
It's easy to earn miles on a London (LHR-Heathrow) to Idaho Falls, ID (IDA-Idaho Falls Regional) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Idaho Falls, ID (IDA) from London (LHR)?
If you're planning to travel to Idaho Falls from Heathrow (LHR), you can fly directly into Idaho Falls Regional (IDA) which offers international flights and connections. Some flights may connect through major hubs like Logan Intl. (BOS), Seattle - Tacoma Intl. (SEA), or John F. Kennedy Intl. (JFK) before reaching Idaho Falls. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from London (LHR-Heathrow) to Idaho Falls, ID (IDA-Idaho Falls Regional) at the last minute?
Typically, booking a last minute flight from London (LHR-Heathrow) to Idaho Falls, ID (IDA-Idaho Falls Regional) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a London (LHR-Heathrow) to Idaho Falls, ID (IDA-Idaho Falls Regional) flight and hotel package?
Securing a London (LHR-Heathrow) to Idaho Falls, ID (IDA-Idaho Falls Regional) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from London (LHR-Heathrow) to Idaho Falls, ID (IDA-Idaho Falls Regional)?
If you booked your London (LHR-Heathrow) to Idaho Falls, ID (IDA-Idaho Falls Regional) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Heathrow
Destination airport
Idaho Falls Regional
Airlines serving
Air France, Alaska Airlines, American Airlines, Delta, KLM, United, Virgin Atlantic
Roundtrip price
£760
Distance
7533 km

Book with confidence

Compare flights from London to Idaho Falls easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from London to Idaho Falls. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Idaho Falls Regional in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Heathrow to Idaho Falls Regional.  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Heathrow (LHR) to Idaho Falls Regional (IDA)

The easiest way to view the best deals on flights from London to Idaho Falls today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Heathrow to Idaho Falls Regional start at just £760 and range up to £811.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near London and Idaho Falls
  • booking your flight during March, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your London to Idaho Falls flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Heathrow to Idaho Falls Regional for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Compare flights from London to Idaho Falls easily and book with confidence

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