Cheap flights from London Heathrow Airport to Idaho from £374
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London Heathrow Airport to Idaho departing on 18/6. 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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1 adult
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0 bags
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Round-trip
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Cheap return flights
KAYAK's recommended return flight deals from the most popular airlines that fly from London Heathrow Airport to Idaho.
Cheap one-way flights
Flying one-way? These are some of the best deals recently discovered on momondo for flights from London Heathrow Airport to Idaho.
Cheap last-minute flights
Planning a quick getaway from London Heathrow Airport to Idaho? These are the last-minute flight deals available now.
United Airlines flights from London Heathrow Airport to Idaho
Our best United Airlines deals on London Heathrow Airport to Idaho flight tickets
United Airlines![United Airlines]()
5 May![United Airlines]()
19 May
LHR16:15London Heathrow
27h 24m
2 stops
BOI12:39Boise Air Term. Gowen Fld
BOI07:41Boise Air Term. Gowen Fld
16h 44m
1 stop
LHR07:25London Heathrow
United Airlines![United Airlines]()
9 May![United Airlines]()
11 Jul
LHR08:40London Heathrow
19h 59m
2 stops
BOI21:39Boise Air Term. Gowen Fld
BOI16:40Boise Air Term. Gowen Fld
31h 45m
2 stops
LHR07:25London Heathrow
American Airlines flights from London Heathrow Airport to Idaho
Our best American Airlines deals on London Heathrow Airport to Idaho flight tickets
American Airlines![American Airlines]()
24 Jun![American Airlines]()
2 Jul
LHR09:25London Heathrow
19h 29m
2 stops
BOI21:54Boise Air Term. Gowen Fld
BOI15:35Boise Air Term. Gowen Fld
14h 10m
1 stop
LHR12:45London Heathrow
See travel insights to Idaho from
How to get the cheapest flight ticket from London Heathrow Airport to Idaho
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
Prices
Airlines
What is the cheapest month to fly to Idaho?
The month of January is, on average, the cheapest month to fly to Idaho from London Heathrow Airport, with most prices found around £574. If you’re not able to fly to Idaho in January, then November is your next best option. Flight prices from London Heathrow Airport to Idaho during November average around £609.
What is the cheapest day to depart on your flight to Idaho?
On average, the least expensive day to fly to Idaho from London Heathrow Airport is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as £651. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from London Heathrow Airport because it is more convenient for both business and leisure travellers. As a result, prices tend to be around £898.
What is the cheapest time of day to depart on your flight to Idaho?
According to our data, the cheapest time of day to fly to Idaho is at midday. momondo users have found flights departing from London Heathrow Airport to Idaho at midday for as low as £671. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the evening are often more expensive, with an average ticket price of £870.
How far in advance should I book a flight to Idaho?
You are more likely to see cheaper flights to Idaho from London Heathrow Airport when booking 26 weeks ahead of your departure date. In general, you can expect to find flights to Idaho for around £715 when searching 26 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Idaho from London Heathrow Airport for as low as £560 on momondo.
What is the cheapest airline that flies from London Heathrow to Idaho?
WestJet, Lufthansa, and Icelandair are the most popular carriers operating from London Heathrow to Idaho
Which airlines fly to Idaho?
Virgin Atlantic, United Airlines and Lufthansa are the top three most popular airlines that fly to Idaho from London Heathrow Airport according to our data. Virgin Atlantic is the first choice among our users, with 33% of people opting to fly with this airline when travelling to Idaho. Keep in mind that there are 7 different airlines that fly to Idaho on a routine basis, so you have a few additional options to choose from.
Cheap London Heathrow Airport to Idaho flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from London Heathrow Airport to Idaho
When did momondo last update prices for flights from London Heathrow Airport to Idaho?
Prices for flights from London Heathrow Airport to Idaho refresh daily.
How many operators does momondo search for flights from London Heathrow Airport to Idaho?
There are 7 operators available for flights from London Heathrow Airport to Idaho as of April 2025.
How old do you have to be to fly from London Heathrow Airport to Idaho?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London Heathrow Airport to Idaho.
What documentation or ID do you need to fly to Idaho?
The travel and health documents you'll need for your trip to Idaho may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Idaho. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
Best airlines flying from London Heathrow Airport to Idaho
Compare and see reviews for airlines that fly from London Heathrow Airport to Idaho with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom £508 | Free Cancellation | Rating 7.6 1,267 reviews | |||
| PriceFrom £549 | Free Cancellation | Rating 7.4 8,619 reviews | |||
| PriceFrom £550 | Free Cancellation | Rating 7.8 1,323 reviews | |||
| PriceFrom £557 | Free Cancellation | Rating 6.7 6,964 reviews | |||
| PriceFrom £598 | Free Cancellation | Rating 7.4 637 reviews | |||
| PriceFrom £685 | Free Cancellation | Rating 7.0 476 reviews | |||
| PriceFrom £694 | Free Cancellation | Rating 6.6 6,718 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from London to Idaho?
It is quick and easy to find London to Idaho 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 Idaho that suits you.
Can I find flights from London to Idaho with flexible booking policies on momondo?
Yes. momondo enables you to select and highlight flights to Idaho from London with this policy.
How can momondo help me find flights from London to Idaho?
momondo provides multiple filters to help you find the best flight to Idaho from London. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.
I’m not ready to book a flight from London to Idaho right now. Can momondo alert me if prices change?
Yes. momondo can track prices for London to Idaho flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.
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