Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from Knoxville to London from £285

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 3/2. 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
Voted winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Knoxville to London

Cheap return flights

Enter your travel dates to find the best prices.
Lufthansa Logo
13:59 - 05:55
TYS
-
LHR
10h 56m1 stop
Lufthansa Logo
07:40 - 19:27
LHR
-
TYS
16h 47m2 stops
£419Lufthansa
Fri, 6 Feb - Mon, 9 Feb
Lufthansa Logo
13:59 - 05:55
TYS
-
LHR
10h 56m1 stop
Lufthansa Logo
07:40 - 19:27
LHR
-
TYS
16h 47m2 stops
£419Lufthansa
Wed, 28 Jan - Mon, 9 Feb
Lufthansa Logo
14:25 - 06:40
TYS
-
LHR
11h 15m1 stop
Lufthansa Logo
06:35 - 19:27
LHR
-
TYS
17h 52m2 stops
£422Lufthansa
Thu, 15 Jan - Wed, 28 Jan
Lufthansa Logo
14:25 - 10:50
TYS
-
LHR
15h 25m1 stop
Lufthansa Logo
06:35 - 20:52
LHR
-
TYS
19h 17m2 stops
£446Lufthansa
Fri, 23 Jan - Mon, 26 Jan
Lufthansa Logo
17:29 - 21:00
TYS
-
LHR
22h 31m2 stops
Lufthansa Logo
06:35 - 19:27
LHR
-
TYS
17h 52m2 stops
£452Lufthansa
Fri, 23 Jan - Mon, 26 Jan
Lufthansa Logo
13:59 - 05:55
TYS
-
LHR
10h 56m1 stop
Lufthansa Logo
08:30 - 20:52
LHR
-
TYS
17h 22m2 stops
£454Lufthansa
Thu, 29 Jan - Sat, 7 Feb
Lufthansa Logo
14:25 - 09:45
TYS
-
LHR
14h 20m2 stops
Lufthansa Logo
07:40 - 20:52
LHR
-
TYS
18h 12m2 stops
£460Lufthansa
Wed, 28 Jan - Mon, 9 Feb
Lufthansa Logo
14:25 - 06:40
TYS
-
LHR
11h 15m1 stop
Lufthansa Logo
07:40 - 19:27
LHR
-
TYS
16h 47m2 stops
£463Lufthansa
Thu, 29 Jan - Fri, 6 Feb
United Airlines Logo
13:59 - 05:55
TYS
-
LHR
10h 56m1 stop
United Airlines Logo
06:50 - 19:29
LHR
-
TYS
17h 39m2 stops
£464United Airlines
Thu, 5 Feb - Sun, 15 Feb
Brussels Airlines Logo
14:25 - 10:05
TYS
-
LHR
14h 40m2 stops
Brussels Airlines Logo
06:50 - 19:27
LHR
-
TYS
17h 37m2 stops
£464Brussels Airlines
Fri, 6 Feb - Mon, 9 Feb

Lufthansa flights from Knoxville to London Heathrow Airport

Our best Lufthansa deals on Knoxville to London Heathrow Airport flight tickets
Lufthansa
6 Feb
TYS13:59Knoxville McGhee Tyson
10h 56m
1 stop
LHR05:55London Heathrow
9 Feb
LHR07:40London Heathrow
16h 47m
2 stops
TYS19:27Knoxville McGhee Tyson
£419
Find similar
Lufthansa
28 Jan
TYS13:59Knoxville McGhee Tyson
10h 56m
1 stop
LHR05:55London Heathrow
9 Feb
LHR07:40London Heathrow
16h 47m
2 stops
TYS19:27Knoxville McGhee Tyson
£419
Find similar
Lufthansa
15 Jan
TYS14:25Knoxville McGhee Tyson
11h 15m
1 stop
LHR06:40London Heathrow
28 Jan
LHR06:35London Heathrow
17h 52m
2 stops
TYS19:27Knoxville McGhee Tyson
£422
Find similar

United Airlines flights from Knoxville to London Heathrow Airport

Our best United Airlines deals on Knoxville to London Heathrow Airport flight tickets
United Airlines
5 Feb
TYS13:59Knoxville McGhee Tyson
10h 56m
1 stop
LHR05:55London Heathrow
15 Feb
LHR06:50London Heathrow
17h 39m
2 stops
TYS19:29Knoxville McGhee Tyson
£464
Find similar
United Airlines
16 Jan
TYS19:20Knoxville McGhee Tyson
10h 30m
1 stop
LHR10:50London Heathrow
20 Jan
LHR06:35London Heathrow
37h 14m
2 stops
TYS14:49Knoxville McGhee Tyson
£470
Find similar
United Airlines
16 Jan
TYS11:07Knoxville McGhee Tyson
14h 33m
2 stops
LHR06:40London Heathrow
20 Jan
LHR06:35London Heathrow
17h 52m
2 stops
TYS19:27Knoxville McGhee Tyson
£473
Find similar

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 18 December 2025.
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

Fri 6/2

13:59-05:55

1 stop10h 56m

London Heathrow

Mon 9/2

07:40-19:27

2 stops16h 47m

£419

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Wed 28/1

13:59-05:55

1 stop10h 56m

London Heathrow

Mon 9/2

07:40-19:27

2 stops16h 47m

£419

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Thu 15/1

14:25-06:40

1 stop11h 15m

London Heathrow

Wed 28/1

06:35-19:27

2 stops17h 52m

£422

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Fri 23/1

14:25-10:50

1 stop15h 25m

London Heathrow

Mon 26/1

06:35-20:52

2 stops19h 17m

£446

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Fri 23/1

17:29-21:00

2 stops22h 31m

London Heathrow

Mon 26/1

06:35-19:27

2 stops17h 52m

£452

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Thu 29/1

13:59-05:55

1 stop10h 56m

London Heathrow

Sat 7/2

08:30-20:52

2 stops17h 22m

£454

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Wed 28/1

14:25-09:45

2 stops14h 20m

London Heathrow

Mon 9/2

07:40-20:52

2 stops18h 12m

£460

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Thu 29/1

14:25-06:40

1 stop11h 15m

London Heathrow

Fri 6/2

07:40-19:27

2 stops16h 47m

£463

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Thu 5/2

13:59-05:55

1 stop10h 56m

London Heathrow

Sun 15/2

06:50-19:29

2 stops17h 39m

£464

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Fri 6/2

14:25-10:05

2 stops14h 40m

London Heathrow

Mon 9/2

06:50-19:27

2 stops17h 37m

£464

Flights are sorted by cheapest return flights first.

Showing 1-10 of 16 resultsSorted by cheapest first
1
2

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, February 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 £551. The month of October is another great option to travel to London Heathrow Airport, with average flight prices from Knoxville averaging around £556.

What is the cheapest day to depart on your flight to London Heathrow Airport?

On average, the least expensive day to fly to London Heathrow Airport from Knoxville is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as £507. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Thursday as prices are generally higher than usual. According to our data, the average ticket price to London Heathrow Airport on Thursday is £849.

What is the cheapest time of day to depart on your flight to London Heathrow Airport?

According to our data, the cheapest time of day to fly to London Heathrow Airport is in the afternoon. momondo users have found flights departing from Knoxville to London Heathrow Airport in the afternoon for as low as £525. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are £841 on average. Flights to London Heathrow Airport from Knoxville in the morning are generally more expensive because this time of day is more convenient for travellers’ schedules.

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 £699 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 £535 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

11h 15m

Direct flights

None
The fastest flight from Knoxville to London Heathrow Airport takes 11h 15m
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 11h 15m 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
Maidstone
Slough
Northampton
Swindon
Stratford-upon-Avon
Southend-on-Sea
Canterbury
Ipswich
Ilford
Poole
Guildford
Swanage
Hayes
Chelmsford
Dover
Worthing

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.

An easier way to manage your London Heathrow Airport trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 17/1
Sat 24/1
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to London