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Cheap flights from London Heathrow Airport to Knoxville from £392

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 1/3. 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.
Lufthansa Logo
07:30 - 19:29
LHR
-
TYS
16h 59m
2 stops
Lufthansa Logo
13:50 - 05:55
TYS
-
LHR
11h 05m
1 stop
£497Lufthansa
Sat, 21 Feb - Sat, 28 Feb
Lufthansa Logo
07:30 - 20:37
LHR
-
TYS
18h 07m
2 stops
Lufthansa Logo
14:21 - 10:25
TYS
-
LHR
15h 04m
2 stops
£499Lufthansa
Sat, 21 Feb - Sat, 28 Feb
Lufthansa Logo
08:30 - 20:37
LHR
-
TYS
17h 07m
2 stops
Lufthansa Logo
13:50 - 07:55
TYS
-
LHR
13h 05m
1 stop
£501Lufthansa
Mon, 23 Feb - Mon, 2 Mar
United Airlines Logo
09:00 - 20:37
LHR
-
TYS
16h 37m
2 stops
United Airlines Logo
19:25 - 10:50
TYS
-
LHR
10h 25m
1 stop
£502United Airlines
Mon, 23 Feb - Mon, 2 Mar
United Airlines Logo
06:35 - 19:29
LHR
-
TYS
17h 54m
2 stops
United Airlines Logo
13:50 - 11:15
TYS
-
LHR
16h 25m
1 stop
£506United Airlines
Thu, 19 Feb - Mon, 23 Feb
United Airlines Logo
13:30 - 10:49
LHR
-
TYS
25h 19m
2 stops
United Airlines Logo
09:40 - 06:40
TYS
-
LHR
17h 00m
1 stop
£507United Airlines
Fri, 13 Mar - Fri, 20 Mar
Lufthansa Logo
12:05 - 19:29
LHR
-
TYS
12h 24m
1 stop
Lufthansa Logo
13:50 - 05:55
TYS
-
LHR
11h 05m
1 stop
£507Lufthansa
Sat, 21 Feb - Sat, 28 Feb
Lufthansa Logo
12:05 - 19:29
LHR
-
TYS
12h 24m
1 stop
Lufthansa Logo
19:25 - 10:50
TYS
-
LHR
11h 25m
1 stop
£509Lufthansa
Sat, 7 Mar - Sat, 14 Mar
British Airways Logo
13:10 - 21:05
LHR
-
TYS
12h 55m
1 stop
British Airways Logo
17:47 - 09:15
TYS
-
LHR
10h 28m
1 stop
£512British Airways
Mon, 23 Feb - Mon, 2 Mar
United Airlines Logo
09:00 - 20:37
LHR
-
TYS
16h 37m
2 stops
United Airlines Logo
14:21 - 10:25
TYS
-
LHR
15h 04m
2 stops
£519United Airlines
Mon, 23 Feb - Mon, 2 Mar

Lufthansa flights from London Heathrow Airport to Knoxville

Our best Lufthansa deals on London Heathrow Airport to Knoxville flight tickets
Lufthansa
23 Feb
LHR08:30London Heathrow
17h 07m
2 stops
TYS20:37Knoxville McGhee Tyson
2 Mar
TYS13:50Knoxville McGhee Tyson
13h 05m
1 stop
LHR07:55London Heathrow
£501
Lufthansa
7 Mar
LHR12:05London Heathrow
12h 24m
1 stop
TYS19:29Knoxville McGhee Tyson
14 Mar
TYS19:25Knoxville McGhee Tyson
11h 25m
1 stop
LHR10:50London Heathrow
£509
Lufthansa
12 Mar
LHR07:40London Heathrow
17h 07m
1 stop
TYS20:47Knoxville McGhee Tyson
19 Mar
TYS19:25Knoxville McGhee Tyson
11h 25m
1 stop
LHR10:50London Heathrow
£523

United Airlines flights from London Heathrow Airport to Knoxville

Our best United Airlines deals on London Heathrow Airport to Knoxville flight tickets
United Airlines
23 Feb
LHR09:00London Heathrow
16h 37m
2 stops
TYS20:37Knoxville McGhee Tyson
2 Mar
TYS19:25Knoxville McGhee Tyson
10h 25m
1 stop
LHR10:50London Heathrow
£502
United Airlines
19 Feb
LHR06:35London Heathrow
17h 54m
2 stops
TYS19:29Knoxville McGhee Tyson
23 Feb
TYS10:55Knoxville McGhee Tyson
14h 45m
2 stops
LHR06:40London Heathrow
£506
United Airlines
13 Mar
LHR13:30London Heathrow
25h 19m
2 stops
TYS10:49Knoxville McGhee Tyson
20 Mar
TYS09:40Knoxville McGhee Tyson
17h 00m
1 stop
LHR06:40London Heathrow
£507

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 28 January 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

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Sat 21/2

07:30-19:29

2 stops16h 59m

Knoxville McGhee Tyson

Sat 28/2

13:50-05:55

1 stop11h 05m

£497

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Sat 21/2

07:30-20:37

2 stops18h 07m

Knoxville McGhee Tyson

Sat 28/2

14:21-10:25

2 stops15h 04m

£499

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Mon 23/2

08:30-20:37

2 stops17h 07m

Knoxville McGhee Tyson

Mon 2/3

13:50-07:55

1 stop13h 05m

£501

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Mon 23/2

09:00-20:37

2 stops16h 37m

Knoxville McGhee Tyson

Mon 2/3

19:25-10:50

1 stop10h 25m

£502

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Thu 19/2

06:35-19:29

2 stops17h 54m

Knoxville McGhee Tyson

Mon 23/2

13:50-11:15

1 stop16h 25m

£506

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Fri 13/3

13:30-10:49

2 stops25h 19m

Knoxville McGhee Tyson

Fri 20/3

09:40-06:40

1 stop17h 00m

£507

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Sat 21/2

12:05-19:29

1 stop12h 24m

Knoxville McGhee Tyson

Sat 28/2

13:50-05:55

1 stop11h 05m

£507

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Sat 7/3

12:05-19:29

1 stop12h 24m

Knoxville McGhee Tyson

Sat 14/3

19:25-10:50

1 stop11h 25m

£509

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Mon 23/2

13:10-21:05

1 stop12h 55m

Knoxville McGhee Tyson

Mon 2/3

17:47-09:15

1 stop10h 28m

£512

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Mon 23/2

09:00-20:37

2 stops16h 37m

Knoxville McGhee Tyson

Mon 2/3

14:21-10:25

2 stops15h 04m

£519

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 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 £510. 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 £548.

How far in advance should I book a flight 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 £700 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 £550 on momondo.

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

You could potentially save up to 48% 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

14h 34m

Direct flights

None
The fastest flight from London Heathrow Airport to Knoxville takes 14h 34m
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

  • 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 14h 34m.

  • 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 £446Free CancellationRating
6.8
7,749 reviews
Search Lufthansa flights
United AirlinesPriceFrom £456Free CancellationRating
7.4
9,210 reviews
Search United Airlines flights
British AirwaysPriceFrom £465Free CancellationRating
6.7
7,704 reviews
Search British Airways flights
FinnairPriceFrom £486Free CancellationRating
7.6
1,356 reviews
Search Finnair flights
Virgin AtlanticPriceFrom £498Free CancellationRating
7.5
678 reviews
Search Virgin Atlantic 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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