Cheap flights from Idaho Falls to London from $837
This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Idaho Falls to London departing on 9/19. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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United Airlines flights from Idaho Falls to London
Our best United Airlines deals on Idaho Falls to London flight tickets
American Airlines flights from Idaho Falls to London
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How to get the cheapest flight ticket from Idaho Falls to London
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the typical price of a round-trip flight between Idaho Falls and London?
What is the cheapest day to depart on your flight to London?
The cheapest day to depart from Idaho Falls to London is on a Wednesday. Travelers who choose to depart for London on a Wednesday will often find tickets for as low as $914. If your travel schedule is flexible, try to avoid departing on a Monday because tickets tend to average around $1,486. These prices are subject to change though, so be sure to set up a Price Alert for flights to London.
What is the cheapest time of day to depart on your flight to London?
Flying to London from Idaho Falls in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $914 when looking at flights departing in the afternoon. Flights to London are more costly in the morning, with an average ticket price of $1,424. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.
When to book flights from Idaho Falls to London
Cheap Idaho Falls to London (IDA to LON) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Idaho Falls to London
How far is Idaho Falls Fanning Field to London by plane?
A flight from Idaho Falls Fanning Field to London will travel around 4715.6 mi. Flights usually cover this in 12h 02m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Idaho Falls Fanning Field Airport to London?
Prices for flights from Idaho Falls Fanning Field Airport to London are updated daily.
How many operators does momondo search for flights from Idaho Falls Fanning Field Airport to London?
The number of operators available for flights from Idaho Falls Fanning Field Airport to London is 1 as of July 2025.
How old do you have to be to fly from Idaho Falls Fanning Field Airport to London?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Idaho Falls Fanning Field Airport to London.
What documentation or ID do you need to fly to London?
The necessary travel and health documents for your London trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Idaho Falls to London?
momondo data reveals that the most frequently booked airline on the route from Idaho Falls to London is United Airlines, representing 100% of all bookings.
Best airlines flying from Idaho Falls to London
Compare and see reviews for airlines that fly from Idaho Falls to London with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $699 | Free Cancellation | Rating 7.4 8,861 reviews |
Traveling to a place near London?
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Why should I use momondo to find a flight deal from Idaho Falls to London?
It is quick and easy to find Idaho Falls to London flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to London that suits you.
Can I find flights from Idaho Falls to London with flexible booking policies on momondo?
Flights from Idaho Falls to London with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.
How can momondo help me find flights from Idaho Falls to London?
momondo helps you find the best flight between Idaho Falls and London by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.
I’m not ready to book a flight from Idaho Falls to London right now. Can momondo alert me if prices change?
Price alerts on flights to London from Idaho Falls are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.