Cheap flights from Knoxville to London from $218

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.
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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.
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
5:15 pm - 7:40 am
TYS
-
LHR
33h 25m
1 stop
United Airlines Logo
6:50 am - 8:12 pm
LHR
-
TYS
18h 22m
2 stops
$649United Airlines
Sat, Apr 18 - Tue, May 5
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
United Airlines Logo
10:49 am - 5:55 am
TYS
-
LHR
14h 06m
2 stops
United Airlines Logo
6:50 am - 7:35 pm
LHR
-
TYS
17h 45m
2 stops
$653United 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 - 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
Lufthansa Logo
5:48 pm - 5:55 pm
TYS
-
LCY
19h 07m
2 stops
Lufthansa Logo
9:15 am - 7:42 pm
LCY
-
TYS
15h 27m
2 stops
$814Lufthansa
Wed, Apr 15 - Mon, Apr 20
Multiple Airlines Logo
7:15 am - 6:00 am
TYS
-
LGW
18h 45m
1 stop
Multiple Airlines Logo
1:00 pm - 11:16 pm
LGW
-
TYS
38h 16m
2 stops
$841Multiple Airlines
Mon, Mar 16 - Fri, Mar 20
Multiple Airlines Logo
6:30 am - 10:55 am
TYS
-
LGW
24h 25m
2 stops
Multiple Airlines Logo
2:00 pm - 6:42 pm
LGW
-
TYS
32h 42m
1 stop
$902Multiple Airlines
Sun, Mar 8 - Fri, Mar 13

British Airways flights from Knoxville to London

Our best British Airways deals on Knoxville to London 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

Our best Lufthansa deals on Knoxville to London 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 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 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

Sat 4/18

5:15 pm-7:40 am

1 stop33h 25m

London Heathrow

Tue 5/5

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 4/22

10:49 am-5:55 am

2 stops14h 06m

London Heathrow

Wed 5/6

6:50 am-7:35 pm

2 stops17h 45m

$653

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

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

KnoxvilleLondon

TYS - LCY

TYSLCY

Knoxville McGhee Tyson

Wed 4/15

5:48 pm-5:55 pm

2 stops19h 07m

London City

Mon 4/20

9:15 am-7:42 pm

2 stops15h 27m

$814

KnoxvilleLondon

TYS - LGW

TYSLGW

Knoxville McGhee Tyson

Mon 3/16

7:15 am-6:00 am

1 stop18h 45m

London Gatwick

Fri 3/20

1:00 pm-11:16 pm

2 stops38h 16m

$841

KnoxvilleLondon

TYS - LGW

TYSLGW

Knoxville McGhee Tyson

Sun 3/8

6:30 am-10:55 am

2 stops24h 25m

London Gatwick

Fri 3/13

2:00 pm-6:42 pm

1 stop32h 42m

$902

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

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 cheapest month to fly to London?

The cheapest month to fly to London from Knoxville is in January. Flight prices, which tend to average around $604, are often lower during this time because this is during the off-season. The month of April is another great option to travel to London, with average flight prices from Knoxville averaging around $639.

How far in advance should I book a flight to London?

You are more likely to see cheaper flights to London from Knoxville when booking weeks ahead of your departure date. In general, you can expect to find flights to London 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 from Knoxville for as low as $707 on momondo.

Can stopping save me money on Knoxville to London flights?

You could potentially save up to 2% on your flight if you consider stops on a Knoxville to London flight.

When to book flights from Knoxville to London

Are you open to changing your travel dates? Check out the ideal times to fly from Knoxville to London according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Knoxville to London (TYS to LON) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Knoxville to London

Fastest flight time

10h 18m

Direct flights

None
The fastest flight from Knoxville to London takes 10h 18m
There are no direct flights from Knoxville to London. There are no popular flight routes from Knoxville to London.
  • How far is Knoxville McGhee Tyson to London by plane?

    A flight from Knoxville McGhee Tyson to London will travel around 4078.3 mi. 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?

    Prices for flights from Knoxville McGhee Tyson Airport to London are updated daily.

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

  • How old do you have to be to fly from Knoxville McGhee Tyson Airport to London?

    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.

  • What documentation or ID do you need to fly to London?

    The required travel and health documents for your London 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. 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?

Best airlines flying from Knoxville to London

Compare and see reviews for airlines that fly from Knoxville to London 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
Croydon
Brentwood
Guildford
Harrow
Watford
Cobham
Folkestone
Romford
Stansted
Richmond

Why use momondo?

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

Finding the right flight to London from Knoxville is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to London quick and easy, saving you time and money.

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?

If you are simply researching potential flights to London, momondo offers a useful price alert feature which will track prices for flights to London from Knoxville and alert you when they change.

An easier way to manage your London trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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1 adult
Tue 3/17
Tue 3/24

Find better results for your trip to the United Kingdom

Fly into one of these airports located in London

Airports listed have a maximum distance of 35.6 mi from London