LHR - TYS

$510 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 9/30. 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.
1 adult
1 adult, Economy

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
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Heathrow to Knoxville (LHR-TYS)

 
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.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Heathrow to Knoxville

週四, 11月 6 - 週五, 11月 14
United Airlines Logo
9:00 am - 10:05 amLHR-TYS
30h 05m2 stops
United Airlines Logo
2:25 pm - 6:40 amTYS-LHR
11h 15m1 stop
$646United Airlines
Find Deal
週六, 11月 8 - 週五, 11月 14
United Airlines Logo
6:35 am - 8:33 pmLHR-TYS
18h 58m2 stops
United Airlines Logo
10:50 am - 6:40 amTYS-LHR
14h 50m2 stops
$649United Airlines
Find Deal
週四, 11月 6 - 週五, 11月 14
Lufthansa Logo
4:20 pm - 11:59 pmLHR-TYS
12h 39m1 stop
Lufthansa Logo
7:20 pm - 10:50 amTYS-LHR
10h 30m1 stop
$669Lufthansa
Find Deal
週四, 9月 25 - 週四, 10月 2
British Airways Logo
9:15 am - 4:03 pmLHR-TYS
11h 48m1 stop
British Airways Logo
8:31 pm - 12:30 pmTYS-LHR
10h 59m1 stop
$700British Airways
Find Deal
週四, 9月 25 - 週四, 10月 2
Logo
1:30 pm - 9:14 pmLHR-TYS
12h 44m1 stop
Logo
2:34 pm - 6:40 amTYS-LHR
11h 06m1 stop
$719
Find Deal
週四, 9月 25 - 週四, 10月 2
Scandinavian Airlines Logo
6:40 am - 11:44 pmLHR-TYS
22h 04m3 stops
Scandinavian Airlines Logo
4:13 pm - 6:30 pmTYS-LHR
21h 17m2 stops
$882Scandinavian Airlines
Find Deal
週四, 11月 6 - 週五, 11月 14
Scandinavian Airlines Logo
7:05 am - 11:46 pmLHR-TYS
21h 41m3 stops
Scandinavian Airlines Logo
4:00 pm - 4:00 pmTYS-LHR
19h 00m2 stops
$1,140Scandinavian Airlines
Find Deal
週三, 12月 24 - 週日, 1月 4
Lufthansa Logo
7:30 pm - 11:59 pmLHR-TYS
33h 29m2 stops
Lufthansa Logo
7:23 pm - 9:40 amTYS-LHR
57h 17m2 stops
$1,177Lufthansa
Find Deal
週六, 9月 13 - 週六, 9月 27
Logo
6:45 pm - 2:29 pmLHR-TYS
24h 44m3 stops
Logo
8:00 am - 5:45 pmTYS-LHR
28h 45m2 stops
$1,232
Find Deal
週三, 12月 24 - 週日, 1月 4
British Airways Logo
10:05 am - 8:44 pmLHR-TYS
15h 39m1 stop
British Airways Logo
6:18 pm - 7:20 amTYS-LHR
32h 02m1 stop
$1,245British Airways
Find Deal
Booking Insights

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 $741 (return) on average. On the other hand, the most expensive months are August and July, where the average cost of round-trip tickets is $1,367 and $1,173 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, which saves you about 35% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

Find deals

Good to know

Low seasonJanuary
Cheapest flight$510
Best time to beat the crowds with an average 8% drop in price.
Most popular time to fly with an average 20% 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 $510 for a one-way ticket and $646 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?

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

  • 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.

Reviews of the top airline 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.
6.6
British AirwaysOverall score based on 7261 reviews
7.6Crew
6.3Food
6.7Comfort
6.9Boarding
6.4Entertainment
Airline reviews

I checked in to bags, one arrived one was delayed. I did not receive the bag for 4 days - arrived on Tuesday, received bag on Saturday!

8.0 ExcellentNjoki, Aug 2025LHR - BWI
Read more British Airways reviews

I checked in to bags, one arrived one was delayed. I did not receive the bag for 4 days - arrived on Tuesday, received bag on Saturday!

The booking agent, cheapflightsfares, messed up, and the information for the seats we paid extra for was not sent to American Airlines. We were separated on the return flight and sent to the lowest economy section. The flight attendant helped arrange seating at the back of the plane to allow my wife and me to sit together.

I liked the comfort of the seats, very attentive crew, and the meals were excellent.

We were kicked off this flight by British Airways due to delays on our connecting flight also operated by British airways and were rebooked on a different carrier which delayed our arrival home by > 26 hours.

Everything about the flight check-in was smooth no line the plane is clean and bathroom

Excellent everywhere but Philly, the most rotten airport in the world.

Check in was not the greatest as had to talk to an agent to clarify things and then he transferred us to another agent who had difficulty processing my credit card as there was a system glitch and not a card error.

I was put into business class. Wow! My flight attendant was great! The food amazing’

Not so good with their baggage handling as they damaged one of my check in luggage

All went well on the flight, not happy of course with having to pay for a seat and in hold luggage of £50

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

Information on your arrival and departure airports

London Heathrow Airport (LHR)
Knoxville (TYS)

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.