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Cheap flights from Knoxville to London from $381

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 2/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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.
Lufthansa Logo
1:59 pm - 5:55 am
TYS
-
LHR
10h 56m1 stop
Lufthansa Logo
7:40 am - 7:27 pm
LHR
-
TYS
16h 47m2 stops
$560Lufthansa
Fri, Feb 6 - Mon, Feb 9
Lufthansa Logo
1:59 pm - 5:55 am
TYS
-
LHR
10h 56m1 stop
Lufthansa Logo
7:40 am - 7:27 pm
LHR
-
TYS
16h 47m2 stops
$561Lufthansa
Wed, Jan 28 - Mon, Feb 9
Lufthansa Logo
2:25 pm - 6:40 am
TYS
-
LHR
11h 15m1 stop
Lufthansa Logo
6:35 am - 7:27 pm
LHR
-
TYS
17h 52m2 stops
$564Lufthansa
Thu, Jan 15 - Wed, Jan 28
Lufthansa Logo
2:25 pm - 10:50 am
TYS
-
LHR
15h 25m1 stop
Lufthansa Logo
6:35 am - 8:52 pm
LHR
-
TYS
19h 17m2 stops
$597Lufthansa
Fri, Jan 23 - Mon, Jan 26
Lufthansa Logo
5:29 pm - 9:00 pm
TYS
-
LHR
22h 31m2 stops
Lufthansa Logo
6:35 am - 7:27 pm
LHR
-
TYS
17h 52m2 stops
$605Lufthansa
Fri, Jan 23 - Mon, Jan 26
Lufthansa Logo
1:59 pm - 5:55 am
TYS
-
LHR
10h 56m1 stop
Lufthansa Logo
8:30 am - 8:52 pm
LHR
-
TYS
17h 22m2 stops
$607Lufthansa
Thu, Jan 29 - Sat, Feb 7
Lufthansa Logo
2:25 pm - 9:45 am
TYS
-
LHR
14h 20m2 stops
Lufthansa Logo
7:40 am - 8:52 pm
LHR
-
TYS
18h 12m2 stops
$615Lufthansa
Wed, Jan 28 - Mon, Feb 9
Lufthansa Logo
2:25 pm - 6:40 am
TYS
-
LHR
11h 15m1 stop
Lufthansa Logo
7:40 am - 7:27 pm
LHR
-
TYS
16h 47m2 stops
$619Lufthansa
Thu, Jan 29 - Fri, Feb 6
United Airlines Logo
1:59 pm - 5:55 am
TYS
-
LHR
10h 56m1 stop
United Airlines Logo
6:50 am - 7:29 pm
LHR
-
TYS
17h 39m2 stops
$620United Airlines
Thu, Feb 5 - Sun, Feb 15
Brussels Airlines Logo
2:25 pm - 10:05 am
TYS
-
LHR
14h 40m2 stops
Brussels Airlines Logo
6:50 am - 7:27 pm
LHR
-
TYS
17h 37m2 stops
$621Brussels Airlines
Fri, Feb 6 - Mon, Feb 9

Lufthansa flights from Knoxville to London Heathrow Airport

Our best Lufthansa deals on Knoxville to London Heathrow Airport flight tickets
Lufthansa
Feb 6
TYS1:59 pmKnoxville McGhee Tyson
10h 56m
1 stop
LHR5:55 amLondon Heathrow
Feb 9
LHR7:40 amLondon Heathrow
16h 47m
2 stops
TYS7:27 pmKnoxville McGhee Tyson
$560
Find similar
Lufthansa
Jan 28
TYS1:59 pmKnoxville McGhee Tyson
10h 56m
1 stop
LHR5:55 amLondon Heathrow
Feb 9
LHR7:40 amLondon Heathrow
16h 47m
2 stops
TYS7:27 pmKnoxville McGhee Tyson
$561
Find similar
Lufthansa
Jan 15
TYS2:25 pmKnoxville McGhee Tyson
11h 15m
1 stop
LHR6:40 amLondon Heathrow
Jan 28
LHR6:35 amLondon Heathrow
17h 52m
2 stops
TYS7:27 pmKnoxville McGhee Tyson
$564
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
Feb 5
TYS1:59 pmKnoxville McGhee Tyson
10h 56m
1 stop
LHR5:55 amLondon Heathrow
Feb 15
LHR6:50 amLondon Heathrow
17h 39m
2 stops
TYS7:29 pmKnoxville McGhee Tyson
$620
Find similar
United Airlines
Jan 16
TYS7:20 pmKnoxville McGhee Tyson
10h 30m
1 stop
LHR10:50 amLondon Heathrow
Jan 20
LHR6:35 amLondon Heathrow
37h 14m
2 stops
TYS2:49 pmKnoxville McGhee Tyson
$628
Find similar
United Airlines
Jan 16
TYS2:25 pmKnoxville McGhee Tyson
15h 50m
2 stops
LHR11:15 amLondon Heathrow
Jan 20
LHR6:35 amLondon Heathrow
17h 52m
2 stops
TYS7:27 pmKnoxville McGhee Tyson
$633
Find similar

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 December 18, 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 2/6

1:59 pm-5:55 am

1 stop10h 56m

London Heathrow

Mon 2/9

7:40 am-7:27 pm

2 stops16h 47m

$560

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Wed 1/28

1:59 pm-5:55 am

1 stop10h 56m

London Heathrow

Mon 2/9

7:40 am-7:27 pm

2 stops16h 47m

$561

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Thu 1/15

2:25 pm-6:40 am

1 stop11h 15m

London Heathrow

Wed 1/28

6:35 am-7:27 pm

2 stops17h 52m

$564

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Fri 1/23

2:25 pm-10:50 am

1 stop15h 25m

London Heathrow

Mon 1/26

6:35 am-8:52 pm

2 stops19h 17m

$597

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Fri 1/23

5:29 pm-9:00 pm

2 stops22h 31m

London Heathrow

Mon 1/26

6:35 am-7:27 pm

2 stops17h 52m

$605

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Thu 1/29

1:59 pm-5:55 am

1 stop10h 56m

London Heathrow

Sat 2/7

8:30 am-8:52 pm

2 stops17h 22m

$607

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Wed 1/28

2:25 pm-9:45 am

2 stops14h 20m

London Heathrow

Mon 2/9

7:40 am-8:52 pm

2 stops18h 12m

$615

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Thu 1/29

2:25 pm-6:40 am

1 stop11h 15m

London Heathrow

Fri 2/6

7:40 am-7:27 pm

2 stops16h 47m

$619

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Thu 2/5

1:59 pm-5:55 am

1 stop10h 56m

London Heathrow

Sun 2/15

6:50 am-7:29 pm

2 stops17h 39m

$620

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Fri 2/6

2:25 pm-10:05 am

2 stops14h 40m

London Heathrow

Mon 2/9

6:50 am-7:27 pm

2 stops17h 37m

$621

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 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 February is, on average, the cheapest month to fly to London Heathrow Airport from Knoxville, with most prices found around $737. If you’re not able to fly to London Heathrow Airport in February, then October is your next best option. Flight prices from Knoxville to London Heathrow Airport during October average around $744.

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

Our data shows that Wednesday is the least expensive day to fly to London Heathrow Airport. Tickets to fly out on this day can be as low as $834. The most expensive day to fly to London Heathrow Airport is Saturday, with ticket prices averaging around $1,000.

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 morning. momondo users have found flights departing from Knoxville to London Heathrow Airport in the morning for as low as $823. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the afternoon are often more expensive with an average ticket price of $967.

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 $935 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 $716 on momondo.

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

You could potentially save up to 24% 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

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?

    London Heathrow is 4065.6 mi away from Knoxville McGhee Tyson. In terms of flight time, this usually takes a little over 11h 15m.

  • 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 $577Free CancellationRating
7.5
675 reviews
Search Virgin Atlantic flights
DeltaPriceFrom $624Free CancellationRating
7.9
8,006 reviews
Search Delta flights
British AirwaysPriceFrom $693Free CancellationRating
6.7
7,585 reviews
Search British Airways flights
American AirlinesPriceFrom $712Free CancellationRating
7.2
11,054 reviews
Search American Airlines flights
United AirlinesPriceFrom $716Free CancellationRating
7.4
9,091 reviews
Search United Airlines flights

Traveling to a place near London?

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

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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