Cheap flights from Idaho to London from $407
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Idaho to London departing on 5/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from Idaho to London
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
KLM flights from Idaho to London
Our best KLM deals on Idaho to London flight tickets
United Airlines flights from Idaho to London
Our best United Airlines deals on Idaho to London flight tickets
See travel insights to London from
How to get the cheapest flight ticket from Idaho 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 cheapest month to fly to London?
The cheapest month to fly to London from Idaho is in November. Flight prices, which tend to average around $746, are often lower during this time because this is during the off-season. The month of December is another great option to travel to London, with average flight prices from Idaho averaging around $782.
What is the cheapest day to depart on your flight to London?
The cheapest day to depart from Idaho to London is on a Wednesday. Travelers who choose to depart for London on a Wednesday will often find tickets for as low as $801. If your travel schedule is flexible, try to avoid departing on a Friday because tickets tend to average around $975. 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 in the morning is the least expensive time of day to depart. momondo users have found prices as low as $864 when looking at flights departing in the morning. Flights to London are more costly in the evening, with an average ticket price of $1,103. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.
How far in advance should I book a flight to London?
You are more likely to see cheaper flights to London from Idaho when booking 4 weeks ahead of your departure date. In general, you can expect to find flights to London for around $931 when searching 4 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from Idaho for as low as $821 on momondo.
What is the cheapest airline that flies from Idaho to London?
KLM, United Airlines, and Air Canada are the most popular carriers operating from Idaho to London
What airlines fly to London?
United Airlines, Delta and Virgin Atlantic are the top three most popular airlines that fly to London from Idaho according to our data. United Airlines is the first choice among our users, with 38% of people opting to fly with this airline when traveling to London. Keep in mind that there are 4 different airlines that fly to London on a routine basis, so you have a few additional options to choose from.
Cheap Idaho to London flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Idaho to London
When did momondo last update prices for flights from Idaho to London?
Prices for flights from Idaho to London refresh daily.
How many operators does momondo search for flights from Idaho to London?
The number of operators available for flights from Idaho to London is 5 as of April 2025.
How old do you have to be to fly from Idaho to London?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Idaho to London.
What documentation or ID do you need to fly to London?
The travel and health documents required for your trip to London can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at London. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
Best airlines flying from Idaho to London
Compare and see reviews for airlines that fly from Idaho to London with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $648 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $687 | Free Cancellation | Rating 7.4 8,667 reviews | |||
| PriceFrom $695 | Free Cancellation | Rating 7.4 642 reviews | |||
| PriceFrom $727 | Free Cancellation | Rating 8.0 7,916 reviews |
Traveling to a place near London?
Book flights to London if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Idaho to London?
We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Idaho to London for you.
Can I find flights from Idaho to London with flexible booking policies on momondo?
Yes. All flights to London from Idaho on momondo can be compared and filtered by various policies on offer, including flexible booking.
How can momondo help me find flights from Idaho to London?
Once all potential Idaho to London flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.
I’m not ready to book a flight from Idaho to London right now. Can momondo alert me if prices change?
Yes momondo offers price alerts on flights to London from Idaho. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.