TYS - LHR

£406 Find Cheap Flights from Knoxville to London Heathrow Airport

This is the cheapest return flight price found by a KAYAK user in the last 72 hours by searching for a flight from Knoxville to Heathrow departing on 6/10. 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 London Heathrow Airport

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

Cheap Flights from Knoxville to Heathrow (TYS-LHR)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Knoxville to Heathrow 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 return flight deals from Knoxville to Heathrow

Mon, 6 Oct - Mon, 13 Oct
Logo
07:15 - 18:50TYS-LHR
30h 35m2 stops
Logo
11:20 - 11:55LHR-TYS
29h 35m2 stops
£406
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Mon, 4 Aug - Tue, 19 Aug
Virgin Atlantic Logo
19:43 - 11:25TYS-LHR
34h 42m2 stops
Virgin Atlantic Logo
06:15 - 20:06LHR-TYS
18h 51m2 stops
£489Virgin Atlantic
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Wed, 20 Aug - Wed, 27 Aug
United Airlines Logo
12:00 - 07:40TYS-LHR
14h 40m1 stop
United Airlines Logo
14:05 - 17:00LHR-TYS
31h 55m2 stops
£495United Airlines
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Mon, 4 Aug - Wed, 20 Aug
United Airlines Logo
17:46 - 11:45TYS-LHR
12h 59m1 stop
United Airlines Logo
08:40 - 22:35LHR-TYS
18h 55m2 stops
£498United Airlines
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Mon, 6 Oct - Mon, 13 Oct
British Airways Logo
10:59 - 06:40TYS-LHR
14h 41m1 stop
British Airways Logo
20:15 - 16:38LHR-TYS
49h 23m2 stops
£509British Airways
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Wed, 20 Aug - Wed, 27 Aug
KLM Logo
18:14 - 11:10TYS-LHR
11h 56m1 stop
KLM Logo
13:05 - 20:06LHR-TYS
12h 01m1 stop
£511KLM
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Wed, 20 Aug - Wed, 27 Aug
KLM Logo
18:03 - 13:10TYS-LHR
14h 07m1 stop
KLM Logo
13:05 - 23:48LHR-TYS
15h 43m1 stop
£512KLM
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Mon, 1 Sep - Mon, 8 Sep
British Airways Logo
18:12 - 15:25TYS-LHR
16h 13m2 stops
British Airways Logo
20:40 - 21:13LHR-TYS
29h 33m2 stops
£521British Airways
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Sat, 23 Aug - Sun, 31 Aug
Scandinavian Airlines Logo
16:39 - 17:40TYS-LHR
20h 01m2 stops
Scandinavian Airlines Logo
18:40 - 23:48LHR-TYS
34h 08m2 stops
£573Scandinavian Airlines
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Tue, 16 Sep - Mon, 29 Sep
Scandinavian Airlines Logo
14:30 - 16:00TYS-LHR
20h 30m2 stops
Scandinavian Airlines Logo
06:40 - 23:46LHR-TYS
22h 06m2 stops
£578Scandinavian Airlines
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KAYAK's insights & trends for Knoxville to Heathrow flights

Get data-powered insights and trends into flights from Knoxville to Heathrow 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 Knoxville to London Heathrow Airport?

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

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Knoxville to London Heathrow Airport, 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 Knoxville to London Heathrow Airport is February, where tickets cost £499 (return) on average. On the other hand, the most expensive months are June and December, where the average cost of round-trip tickets is £959 and £842 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Knoxville to London Heathrow Airport, 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 Knoxville to London Heathrow Airport, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 8 weeks before departure.

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Good to know - Cheap tickets from Knoxville to London Heathrow Airport

Low seasonJanuary
High seasonMay
Cheapest flight£202
Best time to beat the crowds (9% less expensive on average)
Most popular time to fly (2% more expensive on average)
Flight from Knoxville to London Heathrow Airport

When to book flights from Knoxville to Heathrow

Are your dates flexible? Find out the best times to travel from Knoxville to Heathrow based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns 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 Knoxville to London Heathrow Airport flights

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

    In the last 3 days, the lowest price for a flight from Knoxville to London Heathrow Airport was £274 for a one-way ticket and £551 for a return.

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

    Knoxville and London Heathrow Airport are both served by 1 main airport. You will leave Knoxville from Knoxville McGhee Tyson and will be arriving at London Heathrow.

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

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

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

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

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

    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 Knoxville to London Heathrow Airport.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London Heathrow Airport from Knoxville is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Knoxville to London Heathrow Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to London Heathrow Airport with an airline and back to Knoxville with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Knoxville to London Heathrow Airport?

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

Top airline flying from Knoxville to Heathrow

 
See real verified KAYAK customer reviews for airlines flying from Knoxville to London. 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 Knoxville to Heathrow? 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.
7.3
Scandinavian AirlinesOverall score based on 1387 reviews
6.6Food
7.6Boarding
6.5Entertainment
7.2Comfort
7.9Crew
Airline reviews

Standard short hop flight. No food, no entertainment. Just get in, get something to drink, and try to be as comfortable as you can for an hour.

8.0 ExcellentAnonymous, Jun 2025SEA - MFR
Read more Scandinavian Airlines reviews

Standard short hop flight. No food, no entertainment. Just get in, get something to drink, and try to be as comfortable as you can for an hour.

Travelling coach, comfort is all in one's perspective. Movie choices were great. Food was OK. Flight crew were pleasant. Tip: If they come through asking if you want tea or coffee, do not ask for water. They get miffed. So use the call button after they pass through.

Cancelled my flight. Only option had a layover in Italy. No compensation for the 4 extra hours of travel time. The travel agency, cheapflightfares, blamed Scandinavian airlines and said there was nothing they could do. Scandinavian airlines said since it was booked through a travel agency there was nothing they could do. The entire thing was incredibly frustrating. Never booking through kayak or with Scandinavian again.

Name change on tickets for a misspelled name was very hard to change

Sat on runway for 1.5 hours waiting on winds to change so we could take off. The pilots did an amazing job getting up in the air when they had permission to take off.

The seats were really cramped. The high backs on the chairs made you feel claustrophobic.

Boarding was chaotic and the flight left late but arrived at a decent time. This may have been because of the sxsw festival that was going on.

The flight got canceled and you just send an email in the middle of the night and no solution to how to get on the next flight or provide other solutions.

You cost me my time and did not compensate properly. Gfy.

Missed a connecting flight and SAS was at fault. I was awarded a $20 voucher in exchange for 8 hours of my time? Gfy.

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

Information on your arrival and departure airports

Knoxville (TYS)
Heathrow (LHR)

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