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Knoxville

$700+ Cheap flights from Heathrow (LHR) to Knoxville (TYS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/22. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — TYS
Jul 12 — Jul 191
Sun 7/12
Sun 7/19
1 adult, Economy
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Cheap flight deals from Heathrow to Knoxville

Cheapest flights from Heathrow to Knoxville
Explore the most affordable flight options available from Heathrow to Knoxville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2026.

This TravelUp deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1011:30 am
LHR
-
TYS
2 stops17h 29m
Lufthansa
Thu 9/177:20 pm
TYS
-
LHR
1 stop30h 35m
Lufthansa
Deal found 6/9$857
This TravelUp deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/2110:30 am
LHR
-
TYS
2 stops18h 07m
Lufthansa
Fri 11/272:00 pm
TYS
-
LHR
1 stop10h 55m
Lufthansa
Deal found 6/10$858
This United Airlines deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/107:25 am
LHR
-
TYS
2 stops20h 24m
United Airlines
Thu 9/175:45 am
TYS
-
LHR
2 stops19h 45m
United Airlines
Deal found 6/9$865
This United Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/37:25 am
LHR
-
TYS
2 stops17h 59m
United Airlines
Mon 9/77:20 pm
TYS
-
LHR
1 stop30h 35m
United Airlines
Deal found 6/11$867
This United Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/221:00 pm
LHR
-
TYS
2 stops29h 18m
United Airlines
Tue 12/17:35 pm
TYS
-
LHR
1 stop10h 15m
United Airlines
Deal found 6/10$887
This Cheapflightsfares deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2212:05 pm
LHR
-
TYS
1 stop12h 12m
Lufthansa
Tue 12/12:00 pm
TYS
-
LHR
1 stop12h 55m
Lufthansa
Deal found 6/10$893
This ChecknFly deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure ChecknFly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/256:30 am
LHR
-
TYS
2 stops19h 04m
Lufthansa
Thu 7/161:54 pm
TYS
-
LHR
1 stop11h 51m
Lufthansa
Deal found 6/9$899
This TravelUp deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/169:15 am
LHR
-
TYS
1 stop13h 22m
British Airways
Tue 7/76:32 pm
TYS
-
LHR
1 stop10h 58m
British Airways
Deal found 6/9$901

Find flight deals from Heathrow to Knoxville

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Knoxville (TYS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 12, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$857
(TravelUp)

One-way from

$700
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$1,102
Provider with most accurate pricing for London Heathrow-Knoxville McGhee Tyson flight deals.
Search Deals
Provider most trusted by Cheapflights users for London Heathrow-Knoxville McGhee Tyson flights.
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From London Heathrow to Knoxville McGhee Tyson
Search Deals
One-way flight from London Heathrow to Knoxville McGhee Tyson
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($130 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($35 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Heathrow to Knoxville that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 12, 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Knoxville that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Thu 9/10

7:25 am-10:49 pm

2 stops20h 24m

Knoxville McGhee Tyson

Thu 9/17

5:45 am-6:30 am

2 stops19h 45m

$865

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Thu 9/3

7:25 am-8:24 pm

2 stops17h 59m

Knoxville McGhee Tyson

Mon 9/7

7:20 pm-6:55 am

1 stop30h 35m

$867

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Sun 11/22

1:00 pm-1:18 pm

2 stops29h 18m

Knoxville McGhee Tyson

Tue 12/1

7:35 pm-10:50 am

1 stop10h 15m

$889

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Fri 7/10

8:40 am-8:34 pm

2 stops16h 54m

Knoxville McGhee Tyson

Fri 7/17

3:25 pm-7:55 am

1 stop35h 30m

$901
Quickest round-trip

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Wed 7/1

4:40 pm-11:54 pm

1 stop12h 14m

Knoxville McGhee Tyson

Wed 7/15

10:18 am-8:30 am

1 stop17h 12m

$939

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Sun 11/22

8:40 am-8:40 pm

2 stops17h 00m

Knoxville McGhee Tyson

Tue 12/1

12:00 pm-8:45 am

2 stops15h 45m

$984

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Mon 8/3

6:00 pm-10:42 am

2 stops21h 42m

Knoxville McGhee Tyson

Wed 9/30

9:45 am-5:55 am

2 stops15h 10m

$1,053

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Thu 7/16

12:15 pm-11:54 pm

1 stop16h 39m

Knoxville McGhee Tyson

Sat 7/25

1:54 pm-11:55 am

1 stop17h 01m

$1,062

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Thu 7/2

8:45 am-8:44 pm

2 stops16h 59m

Knoxville McGhee Tyson

Sun 7/12

7:19 pm-2:40 pm

2 stops14h 21m

$1,066

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Fri 7/17

7:30 am-8:34 pm

2 stops18h 04m

Knoxville McGhee Tyson

Sat 7/25

1:54 pm-10:25 am

2 stops15h 31m

$1,082

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/9

Showing 1-10 of 17 resultsSorted by cheapest first
1
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Compare providers for flights from Heathrow to Knoxville

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Heathrow to Knoxville in June.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on London Heathrow Airport-Knoxville flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on London Heathrow Airport-Knoxville flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from London Heathrow Airport-Knoxville flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on London Heathrow Airport-Knoxville flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for London Heathrow Airport-Knoxville flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Heathrow to Knoxville

Have a flexible travel schedule? Discover the best time to fly to Knoxville from Heathrow with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from London Heathrow Airport to Knoxville

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

To ensure you get the cheapest price possible for a flight from London Heathrow Airport to Knoxville, you should look to book at least 65 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from London Heathrow Airport to Knoxville?

Currently, September is the cheapest month in which you can book a flight from London Heathrow Airport to Knoxville (average of $692). Flying from London Heathrow Airport to Knoxville in December is currently the most expensive (average of $1,390). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost to fly round-trip from London Heathrow Airport to Knoxville?

Related info for your journey

Find useful and relevant information for your journey from Heathrow to Knoxville. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Knoxville from London Heathrow?

    For a flight from London Heathrow to Knoxville, you will be flying into McGhee Tyson. Knoxville McGhee Tyson (TYS) is just 11.3 mi from the center of the city. McGhee Tyson is the only Knoxville airport and it handles 0 inbound flights from London Heathrow per day. 0 airlines have flights to Knoxville McGhee Tyson from London Heathrow on a regular basis.

  • How long is the flight from London Heathrow Airport to Knoxville?

    Airlines like United Airlines fly from London Heathrow Airport to Knoxville in about 20h 24m. The time it takes to get you to your destination can typically vary by up to . The distance between London Heathrow Airport and Knoxville is about 4076 mi.

  • Can I find deals for flights from Heathrow to Knoxville that include hotel bookings?

    Yes. In addition to deals on Heathrow to Knoxville flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Heathrow to Knoxville?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Knoxville.

  • Can I find deals for business class flights from Heathrow to Knoxville?

    Yes. Cheapflights offers flight deals from Heathrow to Knoxville by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, September is the cheapest month in which you can book a flight from London Heathrow Airport to Knoxville (average of $692). Flying from London Heathrow Airport to Knoxville in December is currently the most expensive (average of $1,390). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Knoxville?

Book flights to Knoxville if you plan to visit one of these locations
Cherokee
Crossville
Morristown
Bryson City
Murphy
Alcoa
Oak Ridge

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