LHR - TYS

$457 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 4/25. 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, 0 bags

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

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Everything you should know

Cheapest round-trip
$891
Typical prices: $1,108-$799
Lufthansa
Mon 5/11Mon 5/18
LHR - TYS • 2 stops
Cheapest one-way
$457
Multiple Airlines
Sat 4/25
LHR - TYS • 3 stops
Top airlines
British Airways
Cheapest • from $879 (round-trip)
British Airways
Best reviews • 6.7 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Heathrow and Knoxville. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Atlanta (ATL)
Cheapest • Avg $938 (round-trip)
Charlotte (CLT)
Shortest trip • 11h 49m (one-way)
Insights
Insights
Insights
Insights
When to book
3 weeks
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 35% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
September
Cheapest • 28% price drop
September
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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!
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

Mon, May 11 - Mon, May 18
Lufthansa Logo
6:55 am - 8:12 pm
LHR
-
TYS
18h 17m
2 stops
Lufthansa Logo
2:25 pm - 10:40 am
TYS
-
LHR
15h 15m
1 stop
$891Lufthansa
Mon, May 11 - Mon, May 18
United Airlines Logo
8:40 am - 8:45 pm
LHR
-
TYS
17h 05m
2 stops
United Airlines Logo
7:18 pm - 10:40 am
TYS
-
LHR
10h 22m
1 stop
$912United Airlines
Thu, Apr 30 - Mon, May 4
British Airways Logo
12:30 pm - 9:57 pm
LHR
-
TYS
14h 27m
1 stop
British Airways Logo
5:57 pm - 9:05 am
TYS
-
LHR
10h 08m
1 stop
$916British Airways
Mon, May 11 - Mon, May 18
United Airlines Logo
8:40 am - 8:12 pm
LHR
-
TYS
16h 32m
2 stops
United Airlines Logo
7:18 pm - 2:40 pm
TYS
-
LHR
14h 22m
2 stops
$917United Airlines
Tue, Sep 22 - Mon, Oct 5
United Airlines Logo
7:25 am - 10:36 am
LHR
-
TYS
32h 11m
2 stops
United Airlines Logo
5:20 pm - 11:35 am
TYS
-
LHR
13h 15m
1 stop
$919United Airlines
Wed, Apr 15 - Wed, Apr 22
Multiple Airlines Logo
6:05 pm - 9:57 pm
LHR
-
TYS
32h 52m
2 stops
Multiple Airlines Logo
2:49 pm - 6:50 am
TYS
-
LHR
11h 01m
1 stop
$920Multiple Airlines
Wed, Apr 15 - Wed, Apr 22
Multiple Airlines Logo
6:05 pm - 2:24 pm
LHR
-
TYS
25h 19m
2 stops
Multiple Airlines Logo
11:31 am - 11:15 am
TYS
-
LHR
18h 44m
1 stop
$922Multiple Airlines
Mon, May 11 - Mon, May 18
Lufthansa Logo
12:15 pm - 8:12 pm
LHR
-
TYS
12h 57m
1 stop
Lufthansa Logo
2:25 pm - 10:40 am
TYS
-
LHR
15h 15m
1 stop
$924Lufthansa
Tue, Sep 22 - Mon, Oct 5
KLM Logo
11:15 am - 6:17 pm
LHR
-
TYS
12h 02m
1 stop
KLM Logo
7:20 pm - 11:20 am
TYS
-
LHR
11h 00m
1 stop
$927KLM
Fri, May 1 - Wed, May 6
United Airlines Logo
8:40 am - 8:45 pm
LHR
-
TYS
17h 05m
2 stops
United Airlines Logo
11:40 am - 11:35 am
TYS
-
LHR
18h 55m
1 stop
$928United Airlines
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 May.

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 $694 (return) on average. On the other hand, the most expensive months are December and January, where the average cost of round-trip tickets is $1,366 and $1,185 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 3 weeks before departure, which saves you about 35% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 20 weeks before departure.

Find deals

Good to know

Low seasonJanuary
Cheapest flight$457
Best time to beat the crowds but there is an average 22% increase in price.
Most popular time to fly and prices are also 29% lower on average.
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 $457 for a one-way ticket and $879 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 7825 reviews
6.8Comfort
6.4Entertainment
6.4Food
6.9Boarding
7.6Crew
Airline reviews

Crew were nice, food was good. Boarding was horrendous. We were driven around the airport in a bus forced to climb a long flight of very steep stairs with no adequate handrails to board the plane . In many many years of flying to the US I have never been required to do this . There was no assistance for those needing help getting up the stairs to the plane. A fellow passenger helped me. No idea how other elderly, physically limited passengers or those with young children managed . It was a full flight with crowds trying to get up the stairs. It was an accident waiting to happen.

8.0 ExcellentAnonymous, Mar 2026
LHR - LAX
Read more British Airways reviews

Crew were nice, food was good. Boarding was horrendous. We were driven around the airport in a bus forced to climb a long flight of very steep stairs with no adequate handrails to board the plane . In many many years of flying to the US I have never been required to do this . There was no assistance for those needing help getting up the stairs to the plane. A fellow passenger helped me. No idea how other elderly, physically limited passengers or those with young children managed . It was a full flight with crowds trying to get up the stairs. It was an accident waiting to happen.

Horrible, the plane is just old and junky...Filthy restroom, seat was as hard as rock. The food, mystery side dish, inedible..geez..just Horrible. Never flying BA again

the service on Business class should be improved to be at par with industry leaders like Cathay Pacific and Singapore AIrlines. A lot of room for improvement.

Late takeoff, but on time landing. Lost bags, 3 days to find them, still in transit to my location. Power outlets broken, Wi-Fi not working, so much for working on the long flight.

Good. For a long flight. The comfort of the seat could be better. Also, the food was « normal » plane food. Not indian plane food unfortunately! Everything else was smooth and great.

The seats were comfortable. So many empty seats allowed for stretching out and sleeping. The onboard entertainment was pretty good. The cabin crew were so kind and kept the passengers well- hydrated, and well fed.

We had American Airlines on our return and it was confusing if we were going with Aa or BA I had 2 different flight numbers and didn’t get our gate until it was boarding. So we were a bit nervous as the which it was

My touch screen at my seat wasn't working, the films BA advertised on the website for this flight were not available, and the plane was a little dated, food was good and the staff were good, just let down by the aircraft facilities.

Did not like the seating configuration at all with 2+3+2 in business class. Lacking total privacy and comfort

Check-in experience, for business call please provide a premium experience

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)