LHR - TYS

$475 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 11/9. 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

Tue, Nov 11 - Tue, Nov 18
Lufthansa Logo
7:40 am - 8:20 pmLHR-TYS
17h 40m2 stops
Lufthansa Logo
1:52 pm - 5:55 amTYS-LHR
11h 03m1 stop
$597Lufthansa
Find Deal
Wed, Nov 12 - Wed, Nov 19
Lufthansa Logo
11:10 am - 11:59 pmLHR-TYS
17h 49m2 stops
Lufthansa Logo
2:25 pm - 6:40 amTYS-LHR
11h 15m1 stop
$598Lufthansa
Find Deal
Tue, Nov 11 - Tue, Nov 18
Multiple Airlines Logo
7:40 am - 8:20 pmLHR-TYS
17h 40m2 stops
Multiple Airlines Logo
1:52 pm - 8:30 amTYS-LHR
13h 38m2 stops
$603Multiple Airlines
Find Deal
Wed, Mar 4 - Sat, Mar 14
Multiple Airlines Logo
6:35 am - 7:29 pmLHR-TYS
17h 54m2 stops
Multiple Airlines Logo
10:16 am - 6:40 amTYS-LHR
16h 24m1 stop
$607Multiple Airlines
Find Deal
Tue, Nov 11 - Tue, Nov 18
Lufthansa Logo
10:00 am - 8:09 pmLHR-TYS
15h 09m1 stop
Lufthansa Logo
1:52 pm - 5:55 amTYS-LHR
11h 03m1 stop
$609Lufthansa
Find Deal
Mon, Mar 2 - Wed, Mar 11
American Airlines Logo
11:40 am - 11:41 pmLHR-TYS
17h 01m2 stops
American Airlines Logo
8:31 pm - 12:00 pmTYS-LHR
11h 29m1 stop
$616American Airlines
Find Deal
Wed, Nov 12 - Wed, Nov 19
Air Canada Logo
1:25 pm - 11:59 pmLHR-TYS
15h 34m2 stops
Air Canada Logo
7:20 pm - 7:10 amTYS-LHR
30h 50m2 stops
$625Air Canada
Find Deal
Tue, Mar 3 - Tue, Mar 17
British Airways Logo
7:30 am - 5:31 pmLHR-TYS
39h 01m2 stops
British Airways Logo
6:25 pm - 12:00 pmTYS-LHR
13h 35m1 stop
$637British Airways
Find Deal
Sun, Mar 1 - Thu, Mar 12
British Airways Logo
6:45 pm - 9:31 pmLHR-TYS
31h 46m2 stops
British Airways Logo
8:31 pm - 12:00 pmTYS-LHR
11h 29m1 stop
$647British Airways
Find Deal
Fri, Mar 6 - Tue, Mar 10
Air Canada Logo
1:25 pm - 2:42 pmLHR-TYS
30h 17m2 stops
Air Canada Logo
10:16 am - 6:30 amTYS-LHR
16h 14m2 stops
$663Air Canada
Find Deal

Everything you should know

Top airlines
Lufthansa
Cheapest • from $597 (round-trip)
British Airways
Best reviews • 6.7 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
2 weeks
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 27% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
September
Cheapest • 20% price drop
December
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$597
Typical prices: $692-802
Lufthansa
Tue 11/11Tue 11/18
LHR - TYS • 2 stops
Cheapest one-way
$475
Multiple Airlines
Sun 11/9
LHR - TYS • 3 stops
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Knoxville!
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.

How much is a round-trip flight from London Heathrow Airport to Knoxville?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from London Heathrow Airport to Knoxville departing in November.

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 September, where tickets cost $712 (return) on average. On the other hand, the most expensive months are August and July, where the average cost of round-trip tickets is $1,181 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 2 weeks before departure, which saves you about 27% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$475
Best time to beat the crowds with an average 5% drop in price.
Most popular time to fly with an average 23% 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 $475 for a one-way ticket and $597 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 is the only airline alliance operating flights between London Heathrow Airport and Knoxville.

  • 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.
6.7
British AirwaysOverall score based on 7406 reviews
7.6Crew
6.7Comfort
6.9Boarding
6.3Food
6.4Entertainment
Airline reviews

As I have said it sucked, the ticket counter to have to find and pay for another airline to get home. Now I understand this happened over the weekend but they should have someone there to talk to us instead of throwing the regular crew under the bus.

2.0 MediocreChristopher, Sep 2025LHR - ORD
Read more British Airways reviews

As I have said it sucked, the ticket counter to have to find and pay for another airline to get home. Now I understand this happened over the weekend but they should have someone there to talk to us instead of throwing the regular crew under the bus.

Everything excellent except for bag drop off. We started at the D area and that was so slow that it was eventually closed just as we were about to go to a station. We then went to F. We got one suitcase checked and then the screen showed that the station was no longer operable. There were long lines everywhere so we had to ask if we could butt in to the next station to finish. Again, this was the only incident, otherwise it was an excellent flying experience

Adequate to good experience. Comfort was mediocre but everything else was good..

what would have been better would have been that my booking not been canceled by the system and had I been informed that the booking had been cancelled by the system I could have immediately rebooked and not found out that there was an issue when I was told by the system that I needed to book in. It would have also been good if either the booking agent or BA or anyone been in anyway useful. In the end I had to rebook a flight at an additional cost of $350. So no I'm not impressed by BA any of the other parties involved.

Boarding was poor. Why are first class passengers not boarded first?! Bus to the plane and then held on a packed bus because we were waiting for people on the bus before to finish boarding. Seat belt on the fist clas seat is very uncomfortable, cutting into your neck. Other than that crew, seating and food were all excellent. Entertainment, as usual - rubbish.

Flight was delayed but my previous flight was as well so It worked to my advantage. This was my first time in first class. I don't think they ever stopped feeding us. The seating area was very spacious and comfortable. The attendants were wonderful, warm, friendly and very personable.

We had a pretty good experience. Enjoyed both the flights. Crew was very good and helpful.

They issued seat assignments and sat my 2 year-old in the row behind me, separate from me and my daughter. Communication/ customer service was terrible. They told me to change it in London, then in London, they told me to talk to the cabin crew, then a supervisor came and stuck us in the back of the plane when we were supposed to be in row 25. Overall, they need to really work on their customer service. Additionally the food was terrible and they ran out of meals and didn’t have any kid options. To top it off there was no in-flight entertainment for the first hour of the trip.

We missed the connection because we had to wait for a shuttle from the plane to the Terminal. Also, we needed assistance and none was available.

When we arrived at the airport - 1st step - printing out your boarding pass - no issue. Not long lines as these machines. 2nd step - processing your bag drop off. There was only one associate there to help 10 kiosks. We had a family in front of us for 20 minutes trying to work on the machine and figure out every step for 4 pieces of luggage. My husband alerted the associate who was able to assist the family. Highly suggest that there are more associates to assist in this process. Besides this issue, security check went very quickly. Our flight was direct to Philadelphia. We had to carry our bags down two flights of steps, then out to the tarmac to a bus, then carry our bags up two flights of stairs to the plane. No one on the flight was expecting that long trek. I could see some people were struggling a bit. All in all - great flight crew, plane was clean and food was great!

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

Information on your arrival and departure airports

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