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Cheap flights from Knoxville to London from $360

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 3/20. 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.
Iberia Logo
5:06 pm - 12:15 pm
TYS
-
LHR
14h 09m
1 stop
Iberia Logo
6:15 am - 9:21 pm
LHR
-
TYS
20h 06m
2 stops
$644Iberia
Wed, Apr 22 - Wed, May 6
British Airways Logo
11:31 am - 7:40 am
TYS
-
LHR
15h 09m
1 stop
British Airways Logo
7:25 pm - 8:18 pm
LHR
-
TYS
29h 53m
2 stops
$647British Airways
Wed, Apr 15 - Mon, Apr 20
United Airlines Logo
9:50 am - 6:55 am
TYS
-
LHR
16h 05m
1 stop
United Airlines Logo
6:50 am - 8:12 pm
LHR
-
TYS
18h 22m
2 stops
$649United Airlines
Wed, May 6 - Wed, May 20
United Airlines Logo
2:25 pm - 6:30 am
TYS
-
LHR
35h 05m
2 stops
United Airlines Logo
6:50 am - 8:12 pm
LHR
-
TYS
18h 22m
2 stops
$652United Airlines
Sat, Apr 18 - Tue, May 5
Delta Logo
5:24 pm - 12:05 pm
TYS
-
LHR
13h 41m
2 stops
Delta Logo
6:30 am - 4:42 pm
LHR
-
TYS
15h 12m
2 stops
$653Delta
Wed, Apr 8 - Wed, Apr 15
United Airlines Logo
10:49 am - 5:55 am
TYS
-
LHR
14h 06m
2 stops
United Airlines Logo
7:25 am - 8:12 pm
LHR
-
TYS
17h 47m
2 stops
$654United Airlines
Wed, Apr 22 - Wed, May 6
Lufthansa Logo
7:20 pm - 6:25 pm
TYS
-
LHR
18h 05m
2 stops
Lufthansa Logo
7:30 pm - 10:29 pm
LHR
-
TYS
31h 59m
2 stops
$655Lufthansa
Wed, Apr 15 - Mon, Apr 20
Air Canada Logo
7:20 pm - 8:35 am
TYS
-
LHR
32h 15m
2 stops
Air Canada Logo
2:05 pm - 11:03 pm
LHR
-
TYS
37h 58m
2 stops
$658Air Canada
Tue, Apr 7 - Tue, Apr 14
Air Canada Logo
9:40 am - 10:00 am
TYS
-
LHR
19h 20m
2 stops
Air Canada Logo
9:30 am - 7:42 pm
LHR
-
TYS
39h 12m
2 stops
$661Air Canada
Wed, Apr 8 - Fri, Apr 17
Air Canada Logo
7:20 pm - 6:35 am
TYS
-
LHR
30h 15m
2 stops
Air Canada Logo
2:05 pm - 8:45 pm
LHR
-
TYS
35h 40m
2 stops
$666Air Canada
Sat, Apr 18 - Tue, May 5

British Airways flights from Knoxville to London Heathrow Airport

Our best British Airways deals on Knoxville to London Heathrow Airport flight tickets
British Airways
Apr 15
TYS11:31 amKnoxville McGhee Tyson
15h 09m
1 stop
LHR7:40 amLondon Heathrow
Apr 20
LHR7:25 pmLondon Heathrow
29h 53m
2 stops
TYS8:18 pmKnoxville McGhee Tyson
$647
British Airways
Apr 22
TYS2:49 pmKnoxville McGhee Tyson
11h 01m
1 stop
LHR6:50 amLondon Heathrow
May 6
LHR9:15 amLondon Heathrow
18h 09m
1 stop
TYS10:24 pmKnoxville McGhee Tyson
$675
British Airways
Apr 18
TYS5:57 pmKnoxville McGhee Tyson
31h 58m
1 stop
LHR6:55 amLondon Heathrow
May 5
LHR1:10 pmLondon Heathrow
12h 08m
1 stop
TYS8:18 pmKnoxville McGhee Tyson
$680

Lufthansa flights from Knoxville to London Heathrow Airport

Our best Lufthansa deals on Knoxville to London Heathrow Airport flight tickets
Lufthansa
Apr 15
TYS7:20 pmKnoxville McGhee Tyson
18h 05m
2 stops
LHR6:25 pmLondon Heathrow
Apr 20
LHR7:30 pmLondon Heathrow
31h 59m
2 stops
TYS10:29 pmKnoxville McGhee Tyson
$655
Lufthansa
Mar 31
TYS5:48 pmKnoxville McGhee Tyson
16h 52m
2 stops
LHR3:40 pmLondon Heathrow
Apr 7
LHR9:00 amLondon Heathrow
18h 29m
2 stops
TYS10:29 pmKnoxville McGhee Tyson
$685
Lufthansa
Feb 18
TYS2:21 pmKnoxville McGhee Tyson
17h 29m
2 stops
LHR12:50 pmLondon Heathrow
Feb 23
LHR7:30 pmLondon Heathrow
30h 07m
2 stops
TYS8:37 pmKnoxville McGhee Tyson
$709

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 February 15, 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 4/22

5:06 pm-12:15 pm

1 stop14h 09m

London Heathrow

Wed 5/6

6:15 am-9:21 pm

2 stops20h 06m

$644

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Wed 4/15

11:31 am-7:40 am

1 stop15h 09m

London Heathrow

Mon 4/20

7:25 pm-8:18 pm

2 stops29h 53m

$647

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Wed 5/6

9:50 am-6:55 am

1 stop16h 05m

London Heathrow

Wed 5/20

6:50 am-8:12 pm

2 stops18h 22m

$649

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Sat 4/18

2:25 pm-6:30 am

2 stops35h 05m

London Heathrow

Tue 5/5

6:50 am-8:12 pm

2 stops18h 22m

$652

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Wed 4/8

5:24 pm-12:05 pm

2 stops13h 41m

London Heathrow

Wed 4/15

6:30 am-4:42 pm

2 stops15h 12m

$653

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Wed 4/22

10:49 am-5:55 am

2 stops14h 06m

London Heathrow

Wed 5/6

7:25 am-8:12 pm

2 stops17h 47m

$654

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Wed 4/15

7:20 pm-6:25 pm

2 stops18h 05m

London Heathrow

Mon 4/20

7:30 pm-10:29 pm

2 stops31h 59m

$655

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Tue 4/7

7:20 pm-8:35 am

2 stops32h 15m

London Heathrow

Tue 4/14

2:05 pm-11:03 pm

2 stops37h 58m

$658

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Wed 4/8

9:40 am-10:00 am

2 stops19h 20m

London Heathrow

Fri 4/17

9:30 am-7:42 pm

2 stops39h 12m

$661

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Sat 4/18

7:20 pm-6:35 am

2 stops30h 15m

London Heathrow

Tue 5/5

2:05 pm-8:45 pm

2 stops35h 40m

$666

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 April is your next best option. Flight prices from Knoxville to London Heathrow Airport during April average around $770.

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 $942 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 $707 on momondo.

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

You could potentially save up to 2% 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

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?

    London Heathrow is 4065.6 mi away from Knoxville McGhee Tyson. In terms of flight time, this usually takes a little over 10h 18m.

  • 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
7.5
678 reviews
Search Virgin Atlantic flights
DeltaPriceFrom $624Free CancellationRating
7.9
8,205 reviews
Search Delta flights
American AirlinesPriceFrom $674Free CancellationRating
7.2
11,296 reviews
Search American Airlines flights
British AirwaysPriceFrom $693Free CancellationRating
6.7
7,741 reviews
Search British Airways flights
United AirlinesPriceFrom $716Free CancellationRating
7.4
9,296 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
Luton
Dover
Slough
Crawley
Hayes
Wembley
Dartford
Stratford-upon-Avon
Croydon
Brentwood
Guildford
Harrow
Watford
Cobham
Folkestone
Romford
Stansted

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.

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