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Cheap flights from Knoxville to London from £343

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Knoxville to London departing on 9/7. 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
1 adult, Economy, 0 bags
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Find the cheapest flights from Knoxville to London

Cheap return flights

Enter your travel dates to find the best prices.
Iberia Logo
15:05 - 07:40
TYS
-
LHR
11h 35m
1 stop
Iberia Logo
06:15 - 21:15
LHR
-
TYS
20h 00m
2 stops
£679Iberia
Mon, 14 Sep - Wed, 23 Sep
Iberia Logo
17:04 - 10:50
TYS
-
LHR
12h 46m
1 stop
Iberia Logo
06:15 - 21:15
LHR
-
TYS
20h 00m
2 stops
£680Iberia
Mon, 14 Sep - Wed, 23 Sep
British Airways Logo
20:25 - 06:55
TYS
-
LHR
29h 30m
1 stop
British Airways Logo
16:35 - 19:04
LHR
-
TYS
31h 29m
2 stops
£694British Airways
Tue, 1 Sep - Tue, 15 Sep
British Airways Logo
20:25 - 12:50
TYS
-
LHR
11h 25m
1 stop
British Airways Logo
09:15 - 21:44
LHR
-
TYS
17h 29m
2 stops
£697British Airways
Wed, 19 Aug - Wed, 2 Sep
Lufthansa Logo
19:19 - 15:40
TYS
-
LHR
15h 21m
2 stops
Lufthansa Logo
09:30 - 23:57
LHR
-
TYS
19h 27m
2 stops
£697Lufthansa
Wed, 19 Aug - Wed, 2 Sep
Lufthansa Logo
19:19 - 15:40
TYS
-
LHR
15h 21m
2 stops
Lufthansa Logo
09:30 - 23:57
LHR
-
TYS
19h 27m
2 stops
£698Lufthansa
Wed, 19 Aug - Wed, 2 Sep
Lufthansa Logo
19:19 - 15:40
TYS
-
LHR
15h 21m
2 stops
Lufthansa Logo
09:30 - 23:57
LHR
-
TYS
19h 27m
2 stops
£699Lufthansa
Wed, 19 Aug - Wed, 2 Sep
British Airways Logo
17:04 - 09:05
TYS
-
LHR
11h 01m
1 stop
British Airways Logo
13:45 - 21:54
LHR
-
TYS
13h 09m
1 stop
£700British Airways
Mon, 14 Sep - Wed, 23 Sep
British Airways Logo
20:25 - 12:50
TYS
-
LHR
11h 25m
1 stop
British Airways Logo
09:15 - 15:50
LHR
-
TYS
11h 35m
1 stop
£701British Airways
Wed, 19 Aug - Wed, 2 Sep
British Airways Logo
20:25 - 06:55
TYS
-
LHR
29h 30m
1 stop
British Airways Logo
11:10 - 21:15
LHR
-
TYS
15h 05m
1 stop
£705British Airways
Tue, 1 Sep - Tue, 15 Sep

British Airways flights from Knoxville to London Heathrow Airport

Our best British Airways deals on Knoxville to London Heathrow Airport flight tickets
British Airways
1 Sept
TYS20:25Knoxville McGhee Tyson
29h 30m
1 stop
LHR06:55London Heathrow
15 Sept
LHR16:35London Heathrow
31h 29m
2 stops
TYS19:04Knoxville McGhee Tyson
£694
British Airways
19 Aug
TYS20:25Knoxville McGhee Tyson
11h 25m
1 stop
LHR12:50London Heathrow
2 Sept
LHR09:15London Heathrow
17h 29m
2 stops
TYS21:44Knoxville McGhee Tyson
£697
British Airways
14 Sept
TYS17:04Knoxville McGhee Tyson
11h 01m
1 stop
LHR09:05London Heathrow
23 Sept
LHR13:45London Heathrow
13h 09m
1 stop
TYS21:54Knoxville McGhee Tyson
£700

Lufthansa flights from Knoxville to London Heathrow Airport

Our best Lufthansa deals on Knoxville to London Heathrow Airport flight tickets
Lufthansa
19 Aug
TYS19:19Knoxville McGhee Tyson
15h 21m
2 stops
LHR15:40London Heathrow
2 Sept
LHR09:30London Heathrow
19h 27m
2 stops
TYS23:57Knoxville McGhee Tyson
£697
Lufthansa
19 Aug
TYS19:19Knoxville McGhee Tyson
15h 21m
2 stops
LHR15:40London Heathrow
2 Sept
LHR09:30London Heathrow
19h 27m
2 stops
TYS23:57Knoxville McGhee Tyson
£698
Lufthansa
19 Aug
TYS19:19Knoxville McGhee Tyson
15h 21m
2 stops
LHR15:40London Heathrow
2 Sept
LHR09:30London Heathrow
19h 27m
2 stops
TYS23:57Knoxville McGhee Tyson
£699

momondo Fare Finder

 
Customise your flight search to find flights from Knoxville to London Heathrow Airport 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 5 April 2026.
Use the filters below to find and compare flights from Knoxville to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Mon 14/9

15:05-07:40

1 stop11h 35m

London Heathrow

Wed 23/9

06:15-21:15

2 stops20h 00m

£679

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Mon 14/9

17:04-10:50

1 stop12h 46m

London Heathrow

Wed 23/9

06:15-21:15

2 stops20h 00m

£680

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Tue 1/9

20:25-06:55

1 stop29h 30m

London Heathrow

Tue 15/9

16:35-19:04

2 stops31h 29m

£694

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Wed 19/8

20:25-12:50

1 stop11h 25m

London Heathrow

Wed 2/9

09:15-21:44

2 stops17h 29m

£697

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Wed 19/8

19:19-15:40

2 stops15h 21m

London Heathrow

Wed 2/9

09:30-23:57

2 stops19h 27m

£697

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Wed 19/8

19:19-15:40

2 stops15h 21m

London Heathrow

Wed 2/9

09:30-23:57

2 stops19h 27m

£698

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Wed 19/8

19:19-15:40

2 stops15h 21m

London Heathrow

Wed 2/9

09:30-23:57

2 stops19h 27m

£699

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Mon 14/9

17:04-09:05

1 stop11h 01m

London Heathrow

Wed 23/9

13:45-21:54

1 stop13h 09m

£700
Fastest return journey

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Wed 19/8

20:25-12:50

1 stop11h 25m

London Heathrow

Wed 2/9

09:15-15:50

1 stop11h 35m

£701

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Tue 1/9

20:25-06:55

1 stop29h 30m

London Heathrow

Tue 15/9

11:10-21:15

1 stop15h 05m

£705

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 London from

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

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 Knoxville and London Heathrow Airport?

What is the cheapest month to fly to London Heathrow Airport?

In general, January is the cheapest month to fly from Knoxville to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £506. The month of August is another great option to travel to London Heathrow Airport, with average flight prices from Knoxville averaging around £569.

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

You are more likely to see cheaper flights to London Heathrow Airport from Knoxville when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around £723 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from Knoxville for as low as £503 on momondo.

When to book flights from Knoxville to London Heathrow Airport

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

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

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

Fastest flight time

10h 21m

Direct flights

None
The fastest flight from Knoxville to London Heathrow Airport takes 10h 21m
There are no direct flights from Knoxville to London Heathrow Airport. There are no popular flight routes from Knoxville to London Heathrow Airport.
Search flight deals

Frequently asked questions about flying from Knoxville to London Heathrow Airport

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

    Knoxville McGhee Tyson and London Heathrow are 4065.6 mi apart from one another. Typically, this will take 10h 21m by plane in normal conditions.

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

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Knoxville McGhee Tyson Airport to London Heathrow Airport.

  • What documentation or ID do you need to fly to London Heathrow Airport?

    The required travel and health documents for your London Heathrow 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 London Heathrow Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Eastbourne
Milton Keynes
Luton
Gatwick
Stratford-upon-Avon
Slough
Maidstone
Northampton
Swindon
Wembley
Southend-on-Sea
Ipswich
Canterbury
Ilford
Guildford
Hayes
Poole
Chelmsford
Dover
Folkestone

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to London from Knoxville.

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

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

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

momondo provides multiple filters to help you find the best flight to London from Knoxville. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Price alerts on flights to London from Knoxville are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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