Question 1

What is the cheapest flight from London Heathrow Airport to Idaho Falls?

Accepted Answer

In the last 3 days, the lowest price for a flight from London Heathrow Airport to Idaho Falls was $570 for a one-way ticket and $807 for a round-trip. <a href='/flight-routes/London-Heathrow-LHR/Idaho-Falls-Fanning-Field-IDA'>Visit our flight page for the latest deals!>/a>

Question 2

Do I need a passport to fly between London and Idaho Falls?

Accepted Answer

Yes, you'll most likely have to show a valid passport before boarding the plane in London and on arrival in Idaho Falls. <a href='/flight-routes/London-Heathrow-LHR/Idaho-Falls-Fanning-Field-IDA'>Visit our flight page for the latest deals!>/a>

Question 3

Which aircraft models fly most regularly from London to Idaho Falls?

Accepted Answer

We unfortunately don’t have that data for this specific route.

Question 4

Which airline alliances offer flights from London to Idaho Falls?

Accepted Answer

oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between London and Idaho Falls, with oneworld being the most commonly used for this route.

Question 5

How does KAYAK find such low prices on flights from London to Idaho Falls?

Accepted Answer

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from London to Idaho Falls. <a href='/flight-routes/London-Heathrow-LHR/Idaho-Falls-Fanning-Field-IDA'>Visit our flight page for the latest deals!>/a>

Question 6

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from London to Idaho Falls?

Accepted Answer

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Idaho Falls from London is likely to change within 7 days, so travelers know whether to wait or book now. <a href='/flight-routes/London-Heathrow-LHR/Idaho-Falls-Fanning-Field-IDA'>Visit our flight page for the latest deals!>/a>

Question 7

What is the Hacker Fare option on flights from London to Idaho Falls?

Accepted Answer

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Idaho Falls with an airline and back to London with another airline. Booking your flights between London and IDA can sometimes prove cheaper using this method. <a href='/flight-routes/London-Heathrow-LHR/Idaho-Falls-Fanning-Field-IDA'>Visit our flight page for the latest deals!>/a>

Question 8

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London to Idaho Falls?

Accepted Answer

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Idaho Falls from London up to 3 days before/after your preferred dates. You can then pick the flights that suit you best. <a href='/flight-routes/London-Heathrow-LHR/Idaho-Falls-Fanning-Field-IDA'>Visit our flight page for the latest deals!>/a>

Question 9

Which airlines provide the cheapest flights from London to Idaho Falls?

Accepted Answer

In the past 3 days, the cheapest round-trip tickets from London to Idaho Falls were found on American Airlines ($809) and Delta ($817).

Question 10

Which airlines provide the cheapest flights from London to Idaho Falls?

Accepted Answer

In the past 3 days, the cheapest round-trip tickets from London to Idaho Falls were found on American Airlines ($809) and Delta ($817).

Low season	February
High season	May
Cheapest flight	$570

LHR - IDA

$570 Find Cheap Flights from London to Idaho Falls

KAYAK searches hundreds of travel sites at once for deals on flights to Idaho Falls

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

Recent round-trip flight deals from London to Idaho Falls

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Everything you should know

KAYAK's insights & trends for London to Idaho Falls flights

Get data-powered insights and trends into flights from London to Idaho Falls to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from London to Idaho Falls?

In the past 3 days, the cheapest round-trip tickets from London to Idaho Falls were found on American Airlines ($809) and Delta ($817).

Good to know

When to book flights from London to Idaho Falls

FAQs for booking London to Idaho Falls flights

What is the cheapest flight from London Heathrow Airport to Idaho Falls?

In the last 3 days, the lowest price for a flight from London Heathrow Airport to Idaho Falls was $570 for a one-way ticket and $807 for a round-trip.

Do I need a passport to fly between London and Idaho Falls?

Yes, you'll most likely have to show a valid passport before boarding the plane in London and on arrival in Idaho Falls.

Which aircraft models fly most regularly from London to Idaho Falls?

We unfortunately don’t have that data for this specific route.

Which airline alliances offer flights from London to Idaho Falls?

oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between London and Idaho Falls, with oneworld being the most commonly used for this route.

How does KAYAK find such low prices on flights from London to Idaho Falls?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from London to Idaho Falls.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from London to Idaho Falls?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Idaho Falls from London is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from London to Idaho Falls?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Idaho Falls with an airline and back to London with another airline. Booking your flights between London and IDA can sometimes prove cheaper using this method.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London to Idaho Falls?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Idaho Falls from London up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight from London to Idaho Falls

Information on your arrival and departure airports

Cabin class types available on flights to Idaho Falls

Complete your trip to Idaho Falls with a hotel stay or car rental

Find direct flights to and from London and Idaho Falls

Flights to other popular destinations

Flights from domestic origins to Idaho Falls

Choose which airport to fly into in London

Find deals for your return flight