Cheap flights from Knoxville to London from $255
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Knoxville to London departing on 9/12. 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 Knoxville to London
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
KLM flights from Knoxville to London
Our best KLM deals on Knoxville to London flight tickets
United Airlines flights from Knoxville to London
Our best United Airlines deals on Knoxville to London flight tickets
See travel insights to London from
How to get the cheapest flight ticket from Knoxville 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 Knoxville and London?
What is the cheapest month to fly to London?
The cheapest month to fly to London from Knoxville is in September. Flight prices, which tend to average around $777, are often lower during this time because this is during the off-season. The month of February is another great option to travel to London, with average flight prices from Knoxville averaging around $787.
What is the cheapest day to depart on your flight to London?
The cheapest day to depart from Knoxville to London is on a Wednesday. Travelers who choose to depart for London on a Wednesday will often find tickets for as low as $820. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $1,166. 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 Knoxville in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $882 when looking at flights departing in the afternoon. Flights to London are more costly at noon, with an average ticket price of $1,015. Departure times at noon 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 Knoxville when booking 8 weeks ahead of your departure date. In general, you can expect to find flights to London for around $910 when searching 8 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from Knoxville for as low as $725 on momondo.
What is the cheapest airline that flies from Knoxville McGhee Tyson to London?
United Airlines and Delta are the most popular carriers operating from Knoxville McGhee Tyson to London
What airlines fly to London?
American Airlines, Delta and United Airlines are the top three most popular airlines that fly to London from Knoxville according to our data. American Airlines is the first choice among our users, with 62% of people opting to fly with this airline when traveling to London. Keep in mind that there are 6 different airlines that fly to London on a routine basis, so you have a few additional options to choose from.
When to book flights from Knoxville to London
Cheap Knoxville to London (TYS to LON) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Knoxville to London
How far is Knoxville McGhee Tyson to London by plane?
A flight from Knoxville McGhee Tyson to London will travel around 4078.3 mi. In terms of flight time, this usually takes a little over 10h 05m.
When did momondo last update prices for flights from Knoxville McGhee Tyson Airport to London?
Prices for flights from Knoxville McGhee Tyson Airport to London are updated daily.
How many operators does momondo search for flights from Knoxville McGhee Tyson Airport to London?
As of June 2025, there are 5 operators available to choose from for flights from Knoxville McGhee Tyson Airport to London.
How old do you have to be to fly from Knoxville McGhee Tyson Airport to London?
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 Knoxville McGhee Tyson Airport to London.
What documentation or ID do you need to fly to London?
The required travel and health documents for your London trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from Knoxville to London?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Knoxville to London is American Airlines (35% of total bookings). The next most popular airlines are British Airways (22%), United Airlines (19%), and Delta (14%).
Best airlines flying from Knoxville to London
Compare and see reviews for airlines that fly from Knoxville to London with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $580 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $661 | Free Cancellation | Rating 6.6 7,019 reviews | |||
| PriceFrom $676 | Free Cancellation | Rating 7.4 8,801 reviews | |||
| PriceFrom $693 | Free Cancellation | Rating 8.0 7,963 reviews | |||
| PriceFrom $768 | Free Cancellation | Rating 7.4 652 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 Knoxville to London?
Finding the right flight to London from Knoxville is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to London quick and easy, saving you time and money.
Can I find flights from Knoxville to London with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for Knoxville to London flights to just show those with flexible booking policies.
How can momondo help me find flights from Knoxville to London?
Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to London from Knoxville.
I’m not ready to book a flight from Knoxville to London right now. Can momondo alert me if prices change?
If you are simply researching potential flights to London, momondo offers a useful price alert feature which will track prices for flights to London from Knoxville and alert you when they change.