LHR - TYS

$436 Find Cheap Flights from London Heathrow Airport to Knoxville

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Heathrow to Knoxville departing on 6/13. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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KAYAK searches hundreds of travel sites at once for deals on flights to Knoxville

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Knoxville, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Knoxville, as well as popular online travel agencies
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Cheap Flights from Heathrow to Knoxville

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Heathrow to Knoxville that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from Heathrow to Knoxville

KAYAK's recommended round-trip deals from the most popular airlines that fly from Heathrow to Knoxville.
Discover the best prices for you by selecting your travel dates on KAYAK.
American Airlines Logo
12:15 pm - 10:07 pmLHR-TYS
14h 52m1 stop
American Airlines Logo
5:58 pm - 9:05 amTYS-LHR
10h 07m1 stop
$824American Airlines
Find Deal
Wed, May 14 - Mon, May 26
United Airlines Logo
8:30 am - 8:56 pmLHR-TYS
17h 26m2 stops
United Airlines Logo
2:00 pm - 11:15 amTYS-LHR
16h 15m1 stop
$855United Airlines
Find Deal
Mon, Oct 6 - Thu, Nov 6
British Airways Logo
12:30 pm - 8:55 pmLHR-TYS
13h 25m1 stop
British Airways Logo
3:00 pm - 12:15 pmTYS-LHR
16h 15m1 stop
$873British Airways
Find Deal
Thu, May 15 - Sat, May 24
British Airways Logo
10:05 am - 8:55 pmLHR-TYS
15h 50m1 stop
British Airways Logo
7:50 pm - 12:15 pmTYS-LHR
11h 25m1 stop
$874British Airways
Find Deal
Thu, May 15 - Sun, May 25
Lufthansa Logo
6:00 pm - 10:27 amLHR-TYS
21h 27m2 stops
Lufthansa Logo
5:45 am - 6:55 amTYS-LHR
20h 10m1 stop
$883Lufthansa
Find Deal
Sat, May 24 - Wed, May 28
Delta Logo
9:35 am - 8:40 pmLHR-TYS
16h 05m1 stop
Delta Logo
6:05 pm - 12:35 pmTYS-LHR
13h 30m1 stop
$887Delta
Find Deal
Wed, May 14 - Sun, May 25
Virgin Atlantic Logo
8:10 pm - 5:59 pmLHR-TYS
26h 49m2 stops
Virgin Atlantic Logo
4:22 pm - 12:35 pmTYS-LHR
15h 13m2 stops
$903Virgin Atlantic
Find Deal
Fri, May 16 - Sun, May 25
Lufthansa Logo
6:00 pm - 10:27 amLHR-TYS
21h 27m2 stops
Lufthansa Logo
9:55 am - 6:20 amTYS-LHR
15h 25m2 stops
$908Lufthansa
Find Deal
Sat, May 24 - Wed, May 28
Delta Logo
8:40 am - 9:20 pmLHR-TYS
17h 40m2 stops
Delta Logo
11:35 am - 8:50 amTYS-LHR
16h 15m2 stops
$909Delta
Find Deal
Tue, May 27 - Tue, Jun 3
Virgin Atlantic Logo
12:25 pm - 11:04 pmLHR-TYS
15h 39m1 stop
Virgin Atlantic Logo
7:44 pm - 11:10 amTYS-LHR
10h 26m1 stop
$942Virgin Atlantic
Find Deal
Sat, May 31 - Mon, Jun 16
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KAYAK's insights & trends for Heathrow to Knoxville flights

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

What’s the cheapest day of the week to fly from London Heathrow Airport to Knoxville?

The average price of all round-trip flights from London Heathrow Airport to Knoxville clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from London Heathrow Airport to Knoxville, look for departures on Fridays and avoid leaving on a Thursday, as it's usually the priciest day. When flying back from Knoxville, Wednesday is the cheapest day to fly and Saturday is the most expensive.

What is the cheapest month to fly from London Heathrow Airport to Knoxville?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London Heathrow Airport to Knoxville, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from London Heathrow Airport to Knoxville is November, where tickets cost $743 (return) on average. On the other hand, the most expensive months are August and July, where the average cost of round-trip tickets is $1,160 and $1,156 respectively.

How far in advance should I book a flight from London Heathrow Airport to Knoxville?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from London Heathrow Airport to Knoxville, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from London Heathrow Airport to Knoxville, you should book around 4 weeks before departure. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

Good to know

Low seasonJanuary
High seasonDecember
Cheapest flight$436
Best time to beat the crowds with an average 7% drop in price.
Most popular time to fly with an average 22% increase in price.
Flight from London Heathrow Airport to Knoxville

When to book flights from Heathrow to Knoxville

Are your dates flexible? Find out the best times to travel from Heathrow to Knoxville based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking London Heathrow Airport to Knoxville flights

  • What is the cheapest flight from London Heathrow Airport to Knoxville?

    In the last 3 days, the lowest price for a flight from London Heathrow Airport to Knoxville was $436 for a one-way ticket and $824 for a round-trip.

  • Do I need a passport to fly between London Heathrow Airport and Knoxville?

    Yes

  • Which airports will I be using when flying from London Heathrow Airport to Knoxville?

    On your way to Knoxville, you’ll fly out from London Heathrow. You’ll be landing at Knoxville McGhee Tyson.

  • Which aircraft models fly most regularly from London Heathrow Airport to Knoxville?

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

  • Which airline alliances offer flights from London Heathrow Airport to Knoxville?

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

  • Which is the best airline for flights from London to Knoxville, American Airlines or British Airways?

    The two airlines most popular with KAYAK users for flights from London to Knoxville are American Airlines and British Airways. With an average price for the route of $1,100 and an overall rating of 7.2, American Airlines is the most popular choice. British Airways is also a great choice for the route, with an average price of $1,204 and an overall rating of 6.6.

  • How does KAYAK find such low prices on flights from London Heathrow Airport to Knoxville?

    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 Heathrow Airport to Knoxville.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from London Heathrow Airport to Knoxville?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Knoxville from London Heathrow Airport 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 Heathrow Airport to Knoxville?

    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 Knoxville with an airline and back to London Heathrow Airport with another airline. Booking your flights between London Heathrow Airport and TYS 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 Heathrow Airport to Knoxville?

    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 Knoxville from London Heathrow Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top airlines flying from Heathrow to Knoxville

 
See real verified KAYAK customer reviews for airlines flying from London to Knoxville. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Heathrow to Knoxville? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.2
American AirlinesOverall score based on 10000 reviews
7.5Boarding
7.2Comfort
6.5Food
8.0Crew
6.9Entertainment
Airline reviews

At least it was a short flight. Greyhound with wings.

8.0 ExcellentChad, Feb 2025CLT - TYS
Read more American Airlines reviews

At least it was a short flight. Greyhound with wings.

late again! but its my only option to not take 9 hours to get to Memphis

Delays on all NY flights. There was no communication on why but they didn’t say it was weather. Other carriers were not delayed.

I never have a good experience with American and this was no different. The airplane was INCREDIBLY hot. Like unbearably so. Everyone was fanning themselves with pamphlets and sweating. When someone asked the flight attendant to turn down the temperature they were told there was nothing the crew could do. Once we pushed back from the gate we then had to wait an hour to take off and the communication from the crew was not good. People were getting up this whole time and a man was even in the bathroom when we took off. Once we landed at our destination we waited another 30 minutes at the gate to deplane with, again, no communication from the crew as to what was going on.

Good crew and a great experience. Only good things to say.

Great thanks - a whole row to myself. Good food but film selection not great.

It is okay. Flight was on time to start and early to land

Fantastic. I am low vision and was impressed with how helpful and accommodating the service tam was. It was super appreciated! I was pleasantly surprised about how delicious the food was. Like, “I wish I had more even though I’m no longer hungry” delicious. 100% enjoyable trip.

The boarding process was such a chaos with everyone crowding at the gates. There was no structure. The onboard crew were fantastic and very good.

Boarding was a shambles, pushed us all onto the airbridge and then made us wait for ages

Boarding is a mess. They never check group # so lots of people crowding in. Comfortable seats this flight. I had an empty seat next to me, very convenient. Food was really not good, but I was starved. The pizza snack thing was horrible. Crew was grand. They really make it enjoyable.

Crew very helpful and friendly. Food is so so. Main meal is not always the best. Did have a choice of a snack part way which was either a cookie, corn snack, or similar. Second kind of meal was basically like a pizza pastry that really wasn’t a favorite but probably a European snack? Screens and selections of movies, tv and such were good. No WI-Fi unless you buy so no free texting or such on the long flight but I think that might be any overseas flight.

Flight Attendant Karen Lynn was an absolute delight. She assisted in every portion of the services provided throughout the flight, aided with any and all concerns expressed by passengers, and even helped comfort an upset child who was one of five of a traveling family. This quality of service is what keeps me coming back to American. Thank you!

The worst, flight cancelled because the aircraft was not full. Heathrow ground crew totally not helpful and arrogant. Lady proposed us flight with 40min layover instead of direct and said it is our problem of course she was unable to do anything as everything was beyond her control she claimed. after calling on hotline another flight was booked. Flight was cancelled last second so we could not take direct from Zurich but we had to stay overnight in London.

Food was terrible , crew were excellent , IFE was dire . Overall comfortable seat and cabin. Nothing special .

If my tv wasn’t broken and I wasn’t in a seat that didn’t allow for sleeping

Delayed flight due to lack of crew caused me to miss my connection

Please make sure the number of seats matches the number of overhead bins and passengers don't carry on more than one bag.

Seating is tight if you don’t upgrade. Food was decent. Boarding and unboarding was efficient. Smooth flight. Could make upgrades more affordable

American Airlines seemed to run a 'dry' flight. No alcohol was offered at any point with meals. Breakfast was a bit tasteless. The 'hot pocket' whatever that is, was horrid breadish pastry with very little filling. Decaf coffee was horrid. Seats didn't seem as wide or spacious as usual, especually for a ten hour flight.

Everything you need to know for your flight from Heathrow to Knoxville

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