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Cheap flights from Knoxville to London from $499

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 6/8. 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 round-trip flights

Enter your travel dates to find the best prices.
Scandinavian Airlines Logo
5:57 pm - 5:40 pm
TYS
-
LHR
18h 43m
2 stops
Scandinavian Airlines Logo
6:40 am - 11:46 pm
LHR
-
TYS
22h 06m
2 stops
$850Scandinavian Airlines
Mon, Nov 9 - Wed, Nov 18
Scandinavian Airlines Logo
3:55 pm - 6:30 pm
TYS
-
LHR
21h 35m
2 stops
Scandinavian Airlines Logo
6:40 am - 11:46 pm
LHR
-
TYS
22h 06m
2 stops
$876Scandinavian Airlines
Sun, Nov 1 - Mon, Nov 9
Scandinavian Airlines Logo
5:57 pm - 6:30 pm
TYS
-
LHR
19h 33m
2 stops
Scandinavian Airlines Logo
7:05 am - 11:46 pm
LHR
-
TYS
21h 41m
3 stops
$885Scandinavian Airlines
Mon, Nov 9 - Wed, Nov 18
Delta Logo
5:45 am - 6:25 am
TYS
-
LHR
19h 40m
1 stop
Delta Logo
6:30 am - 5:35 pm
LHR
-
TYS
16h 05m
2 stops
$903Delta
Mon, Aug 17 - Thu, Aug 27
Delta Logo
2:30 pm - 1:15 pm
TYS
-
LHR
17h 45m
1 stop
Delta Logo
6:30 am - 6:17 pm
LHR
-
TYS
16h 47m
2 stops
$904Delta
Wed, Sep 2 - Wed, Sep 9
Delta Logo
4:38 pm - 1:15 pm
TYS
-
LHR
15h 37m
1 stop
Delta Logo
6:30 am - 5:35 pm
LHR
-
TYS
16h 05m
2 stops
$905Delta
Mon, Aug 17 - Thu, Aug 27
Delta Logo
7:11 am - 7:10 am
TYS
-
LHR
18h 59m
1 stop
Delta Logo
6:30 am - 6:17 pm
LHR
-
TYS
16h 47m
2 stops
$906Delta
Wed, Aug 19 - Wed, Sep 2
Delta Logo
12:00 pm - 6:20 am
TYS
-
LHR
13h 20m
2 stops
Delta Logo
6:30 am - 5:27 pm
LHR
-
TYS
15h 57m
2 stops
$908Delta
Mon, Sep 14 - Wed, Sep 23
Delta Logo
12:01 pm - 7:10 am
TYS
-
LHR
14h 09m
2 stops
Delta Logo
6:30 am - 6:17 pm
LHR
-
TYS
16h 47m
2 stops
$910Delta
Wed, Aug 19 - Wed, Sep 2
British Airways Logo
1:45 pm - 10:20 am
TYS
-
LHR
15h 35m
1 stop
British Airways Logo
9:15 am - 9:54 pm
LHR
-
TYS
17h 39m
2 stops
$921British Airways
Wed, Sep 23 - Wed, Oct 14

Delta flights from Knoxville to London Heathrow Airport

Our best Delta deals on Knoxville to London Heathrow Airport flight tickets
Delta
Aug 17
TYS5:45 amKnoxville McGhee Tyson
19h 40m
1 stop
LHR6:25 amLondon Heathrow
Aug 27
LHR6:30 amLondon Heathrow
16h 05m
2 stops
TYS5:35 pmKnoxville McGhee Tyson
$903
Delta
Sep 2
TYS2:30 pmKnoxville McGhee Tyson
17h 45m
1 stop
LHR1:15 pmLondon Heathrow
Sep 9
LHR6:30 amLondon Heathrow
16h 47m
2 stops
TYS6:17 pmKnoxville McGhee Tyson
$904
Delta
Aug 17
TYS4:38 pmKnoxville McGhee Tyson
15h 37m
1 stop
LHR1:15 pmLondon Heathrow
Aug 27
LHR6:30 amLondon Heathrow
16h 05m
2 stops
TYS5:35 pmKnoxville McGhee Tyson
$905

KLM flights from Knoxville to London Heathrow Airport

Our best KLM deals on Knoxville to London Heathrow Airport flight tickets
KLM
Sep 2
TYS5:57 pmKnoxville McGhee Tyson
14h 18m
1 stop
LHR1:15 pmLondon Heathrow
Sep 9
LHR11:15 amLondon Heathrow
12h 02m
1 stop
TYS6:17 pmKnoxville McGhee Tyson
$933
KLM
May 27
TYS1:59 pmKnoxville McGhee Tyson
11h 26m
1 stop
LHR6:25 amLondon Heathrow
Jun 3
LHR12:25 pmLondon Heathrow
15h 32m
1 stop
TYS10:57 pmKnoxville McGhee Tyson
$1,292
KLM
Jun 1
TYS11:56 amKnoxville McGhee Tyson
13h 29m
1 stop
LHR6:25 amLondon Heathrow
Jun 5
LHR1:25 pmLondon Heathrow
13h 23m
1 stop
TYS9:48 pmKnoxville McGhee Tyson
$1,800

momondo Fare Finder

 
Customize 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 832,500 searches. Data last updated May 20, 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 round-trip

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Mon 11/9

5:57 pm-5:40 pm

2 stops18h 43m

London Heathrow

Wed 11/18

6:40 am-11:46 pm

2 stops22h 06m

$850

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Sun 11/1

3:55 pm-6:30 pm

2 stops21h 35m

London Heathrow

Mon 11/9

6:40 am-11:46 pm

2 stops22h 06m

$876

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Mon 11/9

5:57 pm-6:30 pm

2 stops19h 33m

London Heathrow

Wed 11/18

7:05 am-11:46 pm

3 stops21h 41m

$885

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Mon 8/17

5:45 am-6:25 am

1 stop19h 40m

London Heathrow

Thu 8/27

6:30 am-5:35 pm

2 stops16h 05m

$903

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Wed 9/2

2:30 pm-1:15 pm

1 stop17h 45m

London Heathrow

Wed 9/9

6:30 am-6:17 pm

2 stops16h 47m

$904

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Mon 8/17

4:38 pm-1:15 pm

1 stop15h 37m

London Heathrow

Thu 8/27

6:30 am-5:35 pm

2 stops16h 05m

$905

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Wed 8/19

7:11 am-7:10 am

1 stop18h 59m

London Heathrow

Wed 9/2

6:30 am-6:17 pm

2 stops16h 47m

$906
Quickest round-trip

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Mon 9/14

12:00 pm-6:20 am

2 stops13h 20m

London Heathrow

Wed 9/23

6:30 am-5:27 pm

2 stops15h 57m

$908

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Wed 8/19

12:01 pm-7:10 am

2 stops14h 09m

London Heathrow

Wed 9/2

6:30 am-6:17 pm

2 stops16h 47m

$910

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Wed 9/23

1:45 pm-10:20 am

1 stop15h 35m

London Heathrow

Wed 10/14

9:15 am-9:54 pm

2 stops17h 39m

$921

Flights are sorted by cheapest round-trip 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?

The month of January is, on average, the cheapest month to fly to London Heathrow Airport from Knoxville, with most prices found around $668. If you’re not able to fly to London Heathrow Airport in January, then August is your next best option. Flight prices from Knoxville to London Heathrow Airport during August average around $746.

How far in advance should I book a flight from Knoxville 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 $982 when searching weeks out. 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 $665 on momondo.

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

You could potentially save up to 40% on your flight if you consider stops on a Knoxville to London Heathrow Airport flight.

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 round-trip 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

13h 14m

Direct flights

None
The fastest flight from Knoxville to London Heathrow Airport takes 13h 14m
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?

    London Heathrow is 4065.6 mi away from Knoxville McGhee Tyson. In terms of flight time, this usually takes a little over 13h 14m.

  • 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 are updated daily.

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

  • 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 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 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.

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

Best airlines flying from Knoxville to London Heathrow Airport

Compare and see reviews for airlines that fly from Knoxville to London Heathrow Airport with momondo
Airline
Rating
Free Cancellation
Price
Virgin AtlanticPriceFrom $572Free CancellationRating
7.4
688 reviews
Search Virgin Atlantic flights
DeltaPriceFrom $624Free CancellationRating
7.9
8,452 reviews
Search Delta flights
American AirlinesPriceFrom $674Free CancellationRating
7.1
11,644 reviews
Search American Airlines flights
United AirlinesPriceFrom $677Free CancellationRating
7.4
9,739 reviews
Search United Airlines flights
British AirwaysPriceFrom $719Free CancellationRating
6.7
7,990 reviews
Search British Airways flights

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Hounslow
Gatwick
Milton Keynes
Dover
Luton
Hayes
Crawley
Wembley
Stratford-upon-Avon
Slough
Croydon
Stansted
Watford
Harrow
Brentwood
Dartford
Ilford
Cobham
Folkestone
Uxbridge

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Knoxville to London for you.

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

Yes. momondo allows you to filter the results for Knoxville to London flights to just show those with flexible booking policies.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to London from Knoxville.

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

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