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Cheap flights from Knoxville to London from £264

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 20/3. 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 Knoxville to London

Cheap return flights

Enter your travel dates to find the best prices.
Iberia Logo
17:06 - 12:15
TYS
-
LHR
14h 09m
1 stop
Iberia Logo
06:15 - 21:21
LHR
-
TYS
20h 06m
2 stops
£471Iberia
Wed, 22 Apr - Wed, 6 May
British Airways Logo
11:31 - 07:40
TYS
-
LHR
15h 09m
1 stop
British Airways Logo
19:25 - 20:18
LHR
-
TYS
29h 53m
2 stops
£474British Airways
Wed, 15 Apr - Mon, 20 Apr
United Airlines Logo
07:00 - 05:55
TYS
-
LHR
17h 55m
2 stops
United Airlines Logo
06:50 - 20:12
LHR
-
TYS
18h 22m
2 stops
£475United Airlines
Wed, 6 May - Wed, 20 May
United Airlines Logo
14:25 - 06:30
TYS
-
LHR
35h 05m
2 stops
United Airlines Logo
06:50 - 20:12
LHR
-
TYS
18h 22m
2 stops
£477United Airlines
Sat, 18 Apr - Tue, 5 May
Delta Logo
17:24 - 12:05
TYS
-
LHR
13h 41m
2 stops
Delta Logo
06:30 - 16:42
LHR
-
TYS
15h 12m
2 stops
£478Delta
Wed, 8 Apr - Wed, 15 Apr
United Airlines Logo
10:49 - 05:55
TYS
-
LHR
14h 06m
2 stops
United Airlines Logo
07:25 - 20:12
LHR
-
TYS
17h 47m
2 stops
£479United Airlines
Wed, 22 Apr - Wed, 6 May
Lufthansa Logo
19:20 - 18:25
TYS
-
LHR
18h 05m
2 stops
Lufthansa Logo
19:30 - 22:29
LHR
-
TYS
31h 59m
2 stops
£480Lufthansa
Wed, 15 Apr - Mon, 20 Apr
Air Canada Logo
19:20 - 08:35
TYS
-
LHR
32h 15m
2 stops
Air Canada Logo
14:05 - 23:03
LHR
-
TYS
37h 58m
2 stops
£482Air Canada
Tue, 7 Apr - Tue, 14 Apr
Air Canada Logo
09:40 - 10:00
TYS
-
LHR
19h 20m
2 stops
Air Canada Logo
09:30 - 19:42
LHR
-
TYS
39h 12m
2 stops
£484Air Canada
Wed, 8 Apr - Fri, 17 Apr
Air Canada Logo
19:20 - 06:35
TYS
-
LHR
30h 15m
2 stops
Air Canada Logo
14:05 - 20:45
LHR
-
TYS
35h 40m
2 stops
£488Air Canada
Sat, 18 Apr - Tue, 5 May

British Airways flights from Knoxville to London Heathrow Airport

Our best British Airways deals on Knoxville to London Heathrow Airport flight tickets
British Airways
15 Apr
TYS11:31Knoxville McGhee Tyson
15h 09m
1 stop
LHR07:40London Heathrow
20 Apr
LHR19:25London Heathrow
29h 53m
2 stops
TYS20:18Knoxville McGhee Tyson
£474
British Airways
22 Apr
TYS14:49Knoxville McGhee Tyson
11h 01m
1 stop
LHR06:50London Heathrow
6 May
LHR12:30London Heathrow
14h 27m
1 stop
TYS21:57Knoxville McGhee Tyson
£494
British Airways
18 Apr
TYS17:57Knoxville McGhee Tyson
31h 58m
1 stop
LHR06:55London Heathrow
5 May
LHR13:10London Heathrow
12h 08m
1 stop
TYS20:18Knoxville McGhee Tyson
£498

United Airlines flights from Knoxville to London Heathrow Airport

Our best United Airlines deals on Knoxville to London Heathrow Airport flight tickets
United Airlines
6 May
TYS09:50Knoxville McGhee Tyson
16h 05m
1 stop
LHR06:55London Heathrow
20 May
LHR06:50London Heathrow
18h 22m
2 stops
TYS20:12Knoxville McGhee Tyson
£475
United Airlines
18 Apr
TYS14:25Knoxville McGhee Tyson
35h 05m
2 stops
LHR06:30London Heathrow
5 May
LHR06:50London Heathrow
18h 22m
2 stops
TYS20:12Knoxville McGhee Tyson
£477
United Airlines
22 Apr
TYS10:49Knoxville McGhee Tyson
14h 06m
2 stops
LHR05:55London Heathrow
6 May
LHR07:25London Heathrow
17h 47m
2 stops
TYS20:12Knoxville McGhee Tyson
£479

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 15 February 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

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Wed 22/4

17:06-12:15

1 stop14h 09m

London Heathrow

Wed 6/5

06:15-21:21

2 stops20h 06m

£471

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Wed 15/4

11:31-07:40

1 stop15h 09m

London Heathrow

Mon 20/4

19:25-20:18

2 stops29h 53m

£474

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Wed 6/5

07:00-05:55

2 stops17h 55m

London Heathrow

Wed 20/5

06:50-20:12

2 stops18h 22m

£475

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Sat 18/4

14:25-06:30

2 stops35h 05m

London Heathrow

Tue 5/5

06:50-20:12

2 stops18h 22m

£477

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Wed 8/4

17:24-12:05

2 stops13h 41m

London Heathrow

Wed 15/4

06:30-16:42

2 stops15h 12m

£478

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Wed 22/4

10:49-05:55

2 stops14h 06m

London Heathrow

Wed 6/5

07:25-20:12

2 stops17h 47m

£479

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Wed 15/4

19:20-18:25

2 stops18h 05m

London Heathrow

Mon 20/4

19:30-22:29

2 stops31h 59m

£480

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Tue 7/4

19:20-08:35

2 stops32h 15m

London Heathrow

Tue 14/4

14:05-23:03

2 stops37h 58m

£482

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Wed 8/4

09:40-10:00

2 stops19h 20m

London Heathrow

Fri 17/4

09:30-19:42

2 stops39h 12m

£484

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Sat 18/4

19:20-06:35

2 stops30h 15m

London Heathrow

Tue 5/5

14:05-20:45

2 stops35h 40m

£488

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 £489. The month of April is another great option to travel to London Heathrow Airport, with average flight prices from Knoxville averaging around £564.

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 £689 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 £518 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 18m

Direct flights

None
The fastest flight from Knoxville to London Heathrow Airport takes 10h 18m
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

  • 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 18m 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
Slough
Maidstone
Northampton
Stratford-upon-Avon
Swindon
Southend-on-Sea
Canterbury
Ipswich
Ilford
Guildford
Poole
Chelmsford
Hayes
Wembley
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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