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Cheap flights from London Heathrow Airport to Knoxville from £390

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London Heathrow Airport to Knoxville departing on 19/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from London Heathrow Airport to Knoxville

Cheap return flights

Enter your travel dates to find the best prices.
United Airlines Logo
08:40 - 20:48
LHR
-
TYS
17h 08m
2 stops
United Airlines Logo
08:30 - 06:55
TYS
-
LHR
17h 25m
2 stops
£685United Airlines
Wed, 9 Sep - Wed, 23 Sep
British Airways Logo
15:00 - 21:58
LHR
-
TYS
11h 58m
1 stop
British Airways Logo
18:32 - 12:15
TYS
-
LHR
12h 43m
1 stop
£688British Airways
Wed, 27 May - Thu, 9 Jul
British Airways Logo
13:10 - 21:15
LHR
-
TYS
13h 05m
1 stop
British Airways Logo
18:30 - 10:20
TYS
-
LHR
10h 50m
1 stop
£688British Airways
Wed, 9 Sep - Wed, 23 Sep
British Airways Logo
09:45 - 21:15
LHR
-
TYS
16h 30m
1 stop
British Airways Logo
18:30 - 10:20
TYS
-
LHR
10h 50m
1 stop
£691British Airways
Wed, 9 Sep - Wed, 23 Sep
United Airlines Logo
06:50 - 16:59
LHR
-
TYS
15h 09m
2 stops
United Airlines Logo
07:15 - 07:45
TYS
-
LHR
19h 30m
1 stop
£693United Airlines
Wed, 9 Sep - Wed, 23 Sep
United Airlines Logo
06:50 - 16:59
LHR
-
TYS
15h 09m
2 stops
United Airlines Logo
13:35 - 06:55
TYS
-
LHR
12h 20m
1 stop
£696United Airlines
Wed, 9 Sep - Wed, 23 Sep
United Airlines Logo
06:50 - 16:59
LHR
-
TYS
15h 09m
2 stops
United Airlines Logo
10:46 - 05:55
TYS
-
LHR
14h 09m
2 stops
£697United Airlines
Wed, 9 Sep - Wed, 23 Sep
United Airlines Logo
06:50 - 16:59
LHR
-
TYS
15h 09m
2 stops
United Airlines Logo
10:46 - 05:55
TYS
-
LHR
14h 09m
2 stops
£699United Airlines
Wed, 9 Sep - Wed, 23 Sep
British Airways Logo
09:15 - 17:57
LHR
-
TYS
37h 42m
2 stops
British Airways Logo
18:32 - 08:05
TYS
-
LHR
32h 33m
1 stop
£701British Airways
Mon, 6 Jul - Mon, 20 Jul
Virgin Atlantic Logo
10:45 - 17:27
LHR
-
TYS
11h 42m
1 stop
Virgin Atlantic Logo
10:25 - 07:15
TYS
-
LHR
15h 50m
1 stop
£706Virgin Atlantic
Wed, 13 May - Mon, 18 May

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Virgin Atlantic flights from London Heathrow Airport to Knoxville

Our best Virgin Atlantic deals on London Heathrow Airport to Knoxville flight tickets
Virgin Atlantic
13 May
LHR10:45London Heathrow
11h 42m
1 stop
TYS17:27Knoxville McGhee Tyson
18 May
TYS10:25Knoxville McGhee Tyson
15h 50m
1 stop
LHR07:15London Heathrow
£706
Virgin Atlantic
7 Jul
LHR11:15London Heathrow
13h 57m
1 stop
TYS20:12Knoxville McGhee Tyson
5 Aug
TYS15:54Knoxville McGhee Tyson
10h 21m
1 stop
LHR07:15London Heathrow
£719
Virgin Atlantic
10 Jun
LHR15:15London Heathrow
13h 39m
1 stop
TYS23:54Knoxville McGhee Tyson
17 Jun
TYS11:55Knoxville McGhee Tyson
15h 00m
2 stops
LHR07:55London Heathrow
£725

British Airways flights from London Heathrow Airport to Knoxville

Our best British Airways deals on London Heathrow Airport to Knoxville flight tickets
British Airways
27 May
LHR15:00London Heathrow
11h 58m
1 stop
TYS21:58Knoxville McGhee Tyson
9 Jul
TYS18:32Knoxville McGhee Tyson
12h 43m
1 stop
LHR12:15London Heathrow
£688
British Airways
9 Sept
LHR13:10London Heathrow
13h 05m
1 stop
TYS21:15Knoxville McGhee Tyson
23 Sept
TYS18:30Knoxville McGhee Tyson
10h 50m
1 stop
LHR10:20London Heathrow
£688
British Airways
9 Sept
LHR09:45London Heathrow
16h 30m
1 stop
TYS21:15Knoxville McGhee Tyson
23 Sept
TYS18:30Knoxville McGhee Tyson
10h 50m
1 stop
LHR10:20London Heathrow
£691

momondo Fare Finder

 
Customise your flight search to find flights from London Heathrow Airport 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, momondo users made 279,928 searches. Data last updated 30 April 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 return flight

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Wed 9/9

08:40-20:48

2 stops17h 08m

Knoxville McGhee Tyson

Wed 23/9

08:30-06:55

2 stops17h 25m

£685

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Wed 27/5

15:00-21:58

1 stop11h 58m

Knoxville McGhee Tyson

Thu 9/7

18:32-12:15

1 stop12h 43m

£688
Fastest return journey

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Wed 9/9

13:10-21:15

1 stop13h 05m

Knoxville McGhee Tyson

Wed 23/9

18:30-10:20

1 stop10h 50m

£688

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Wed 9/9

09:45-21:15

1 stop16h 30m

Knoxville McGhee Tyson

Wed 23/9

18:30-10:20

1 stop10h 50m

£691

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Wed 9/9

06:50-16:59

2 stops15h 09m

Knoxville McGhee Tyson

Wed 23/9

07:15-07:45

1 stop19h 30m

£693

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Wed 9/9

06:50-16:59

2 stops15h 09m

Knoxville McGhee Tyson

Wed 23/9

13:35-06:55

1 stop12h 20m

£696

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Wed 9/9

06:50-16:59

2 stops15h 09m

Knoxville McGhee Tyson

Wed 23/9

10:46-05:55

2 stops14h 09m

£697

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Wed 9/9

06:50-16:59

2 stops15h 09m

Knoxville McGhee Tyson

Wed 23/9

10:46-05:55

2 stops14h 09m

£699

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Mon 6/7

09:15-17:57

2 stops37h 42m

Knoxville McGhee Tyson

Mon 20/7

18:32-08:05

1 stop32h 33m

£701

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Wed 13/5

10:45-17:27

1 stop11h 42m

Knoxville McGhee Tyson

Mon 18/5

10:25-07:15

1 stop15h 50m

£706

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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See travel insights to Knoxville from

How to get the cheapest flight ticket from London Heathrow Airport to Knoxville

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between London Heathrow Airport and Knoxville?

What is the cheapest month to fly to Knoxville?

The month of September is, on average, the cheapest month to fly to Knoxville from London Heathrow Airport, with most prices found around £514. If you aren’t able to travel to Knoxville during the month of September, then flying in March is also cheap. Prices for this month can be found on momondo for an average of £539.

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

You are more likely to see cheaper flights to Knoxville from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Knoxville for around £719 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Knoxville from London Heathrow Airport for as low as £503 on momondo.

Can stopping save me money on London Heathrow Airport to Knoxville flights?

You could potentially save up to 23% on your flight if you consider stops on a London Heathrow Airport to Knoxville flight.

When to book flights from London Heathrow Airport to Knoxville

Are you open to changing your travel dates? Check out the ideal times to fly from London Heathrow Airport to Knoxville according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap London Heathrow Airport to Knoxville (LHR to TYS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London Heathrow Airport to Knoxville

Fastest flight time

12h 40m

Direct flights

None
The fastest flight from London Heathrow Airport to Knoxville takes 12h 40m
There are no direct flights from London Heathrow Airport to Knoxville. There are no popular flight routes from London Heathrow Airport to Knoxville.
Search flight deals

Frequently asked questions about flying from London Heathrow Airport to Knoxville

  • How far is London Heathrow to Knoxville McGhee Tyson by plane?

    The distance between London Heathrow and Knoxville McGhee Tyson is about 4065.6 mi. A reasonable flight in good conditions will take 12h 40m.

  • When did momondo last update prices for flights from London Heathrow Airport to Knoxville McGhee Tyson Airport?

    Prices for flights from London Heathrow Airport to Knoxville McGhee Tyson Airport are updated daily.

  • How many operators does momondo search for flights from London Heathrow Airport to Knoxville McGhee Tyson Airport?

  • How old do you have to be to fly from London Heathrow Airport to Knoxville McGhee Tyson Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from London Heathrow Airport to Knoxville McGhee Tyson Airport.

  • What documentation or ID do you need to fly to Knoxville McGhee Tyson Airport?

    The required travel and health documents for your Knoxville McGhee Tyson Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Knoxville McGhee Tyson Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from London Heathrow Airport to Knoxville?

Best airlines flying from London Heathrow Airport to Knoxville

Compare and see reviews for airlines that fly from London Heathrow Airport to Knoxville with momondo
Airline
Rating
Free Cancellation
Price
LufthansaPriceFrom £453Free CancellationRating
6.8
7,964 reviews
Search Lufthansa flights
United AirlinesPriceFrom £464Free CancellationRating
7.4
9,678 reviews
Search United Airlines flights
British AirwaysPriceFrom £473Free CancellationRating
6.7
7,937 reviews
Search British Airways flights
Virgin AtlanticPriceFrom £504Free CancellationRating
7.4
688 reviews
Search Virgin Atlantic flights
FinnairPriceFrom £507Free CancellationRating
7.6
1,392 reviews
Search Finnair flights

Travelling to a place near Knoxville?

Book flights to Knoxville if you plan to visit one of these locations
Pigeon Forge
Gatlinburg
Newport

Why use momondo?

Why should I use momondo to find a flight deal from London to Knoxville?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from London to Knoxville . Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from London to Knoxville with flexible booking policies on momondo?

momondo does allow users to show only those flights to Knoxville from London which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from London to Knoxville?

Once you have performed a search for London to Knoxville flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from London to Knoxville right now. Can momondo alert me if prices change?

Yes. momondo can track prices for London to Knoxville flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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