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Cheap flights from London to Knoxville from $578

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London to Knoxville departing on 11/29. 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
1 adult, Economy, 0 bags

Find the cheapest flights from London to Knoxville

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
2:00 pm - 10:56 pm
LGW
-
TYS
13h 56m
1 stop
Multiple Airlines Logo
7:10 am - 8:25 am
TYS
-
LGW
20h 15m
2 stops
$718Multiple Airlines
Fri, Sep 4 - Sun, Sep 13
Multiple Airlines Logo
2:00 pm - 10:37 am
LGW
-
TYS
25h 37m
1 stop
Multiple Airlines Logo
7:20 pm - 10:00 am
TYS
-
LGW
33h 40m
1 stop
$802Multiple Airlines
Mon, Jul 6 - Mon, Jul 20
Lufthansa Logo
10:50 am - 11:59 pm
LHR
-
TYS
18h 09m
2 stops
Lufthansa Logo
7:25 pm - 10:40 am
TYS
-
LHR
10h 15m
1 stop
$840Lufthansa
Tue, Oct 6 - Fri, Oct 23
Lufthansa Logo
10:50 am - 11:59 pm
LHR
-
TYS
18h 09m
2 stops
Lufthansa Logo
7:25 pm - 6:40 pm
TYS
-
LHR
18h 15m
2 stops
$845Lufthansa
Tue, Oct 6 - Fri, Oct 23
Lufthansa Logo
8:30 am - 11:59 pm
LHR
-
TYS
20h 29m
2 stops
Lufthansa Logo
6:02 pm - 11:55 am
TYS
-
LHR
12h 53m
1 stop
$848Lufthansa
Fri, Sep 4 - Sun, Sep 13
United Airlines Logo
8:40 am - 10:49 pm
LHR
-
TYS
19h 09m
2 stops
United Airlines Logo
5:45 am - 10:40 am
TYS
-
LHR
23h 55m
1 stop
$854United Airlines
Wed, Sep 23 - Sat, Sep 26
Lufthansa Logo
8:45 am - 11:56 pm
LHR
-
TYS
20h 11m
2 stops
Lufthansa Logo
2:00 pm - 5:55 am
TYS
-
LHR
10h 55m
1 stop
$857Lufthansa
Sun, Nov 22 - Tue, Dec 1
United Airlines Logo
6:35 am - 8:44 pm
LHR
-
TYS
18h 09m
2 stops
United Airlines Logo
9:45 am - 6:20 am
TYS
-
LHR
15h 35m
2 stops
$859United Airlines
Sat, Oct 31 - Sat, Nov 7
Virgin Atlantic Logo
9:20 am - 10:00 pm
LCY
-
TYS
17h 40m
2 stops
Virgin Atlantic Logo
11:45 am - 8:50 am
TYS
-
LCY
16h 05m
2 stops
$1,016Virgin Atlantic
Fri, Sep 4 - Sun, Sep 13
Delta Logo
7:45 am - 6:02 pm
LCY
-
TYS
15h 17m
2 stops
Delta Logo
11:41 am - 7:15 am
TYS
-
LCY
14h 34m
2 stops
$1,030Delta
Mon, Jul 6 - Mon, Jul 20

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United Airlines flights from London to Knoxville

Our best United Airlines deals on London to Knoxville flight tickets
United Airlines
Sep 23
LHR8:40 amLondon Heathrow
19h 09m
2 stops
TYS10:49 pmKnoxville McGhee Tyson
Sep 26
TYS5:45 amKnoxville McGhee Tyson
23h 55m
1 stop
LHR10:40 amLondon Heathrow
$854
United Airlines
Oct 31
LHR6:35 amLondon Heathrow
18h 09m
2 stops
TYS8:44 pmKnoxville McGhee Tyson
Nov 7
TYS9:45 amKnoxville McGhee Tyson
15h 35m
2 stops
LHR6:20 amLondon Heathrow
$859
United Airlines
Sep 29
LHR6:50 amLondon Heathrow
15h 18m
2 stops
TYS5:08 pmKnoxville McGhee Tyson
Oct 3
TYS1:35 pmKnoxville McGhee Tyson
15h 50m
2 stops
LHR10:25 amLondon Heathrow
$860

Aer Lingus flights from London to Knoxville

Our best Aer Lingus deals on London to Knoxville flight tickets
Aer Lingus
Jul 1
LCY9:10 amLondon City
19h 43m
2 stops
TYS11:53 pmKnoxville McGhee Tyson
Jul 15
TYS1:00 pmKnoxville McGhee Tyson
14h 35m
2 stops
LCY8:35 amLondon City
$1,477
Aer Lingus
Dec 17
LCY6:50 amLondon City
19h 24m
2 stops
TYS9:14 pmKnoxville McGhee Tyson
Jan 2
TYS5:08 pmKnoxville McGhee Tyson
14h 32m
2 stops
LCY12:40 pmLondon City
$1,513
Aer Lingus
Jul 1
LCY9:10 amLondon City
19h 43m
2 stops
TYS11:53 pmKnoxville McGhee Tyson
Jul 15
TYS1:00 pmKnoxville McGhee Tyson
14h 35m
2 stops
LCY8:35 amLondon City
$1,542

momondo Fare Finder

 
Customize your flight search to find flights from London to Knoxville 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 June 24, 2026.
Use the filters below to find and compare flights from London to Knoxville that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LondonKnoxville

LGW - TYS

LGWTYS

London Gatwick

Fri 9/4

2:00 pm-10:56 pm

1 stop13h 56m

Knoxville McGhee Tyson

Sun 9/13

7:10 am-8:25 am

2 stops20h 15m

$718

LondonKnoxville

LGW - TYS

LGWTYS

London Gatwick

Mon 7/6

2:00 pm-10:37 am

1 stop25h 37m

Knoxville McGhee Tyson

Mon 7/20

7:20 pm-10:00 am

1 stop33h 40m

$802
Quickest round-trip

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Tue 10/6

10:50 am-11:59 pm

2 stops18h 09m

Knoxville McGhee Tyson

Fri 10/23

7:25 pm-10:40 am

1 stop10h 15m

$840

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Tue 10/6

10:50 am-11:59 pm

2 stops18h 09m

Knoxville McGhee Tyson

Fri 10/23

7:25 pm-6:40 pm

2 stops18h 15m

$845

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Fri 9/4

8:30 am-11:59 pm

2 stops20h 29m

Knoxville McGhee Tyson

Sun 9/13

6:02 pm-11:55 am

1 stop12h 53m

$848

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Wed 9/23

8:40 am-10:49 pm

2 stops19h 09m

Knoxville McGhee Tyson

Sat 9/26

5:45 am-10:40 am

1 stop23h 55m

$854

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Sun 11/22

8:45 am-11:56 pm

2 stops20h 11m

Knoxville McGhee Tyson

Tue 12/1

2:00 pm-5:55 am

1 stop10h 55m

$857

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Sat 10/31

6:35 am-8:44 pm

2 stops18h 09m

Knoxville McGhee Tyson

Sat 11/7

9:45 am-6:20 am

2 stops15h 35m

$859

LondonKnoxville

LCY - TYS

LCYTYS

London City

Fri 9/4

9:20 am-10:00 pm

2 stops17h 40m

Knoxville McGhee Tyson

Sun 9/13

11:45 am-8:50 am

2 stops16h 05m

$1,016

LondonKnoxville

LCY - TYS

LCYTYS

London City

Mon 7/6

7:45 am-6:02 pm

2 stops15h 17m

Knoxville McGhee Tyson

Mon 7/20

11:41 am-7:15 am

2 stops14h 34m

$1,030

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 Knoxville from

How to get the cheapest flight ticket from London to Knoxville

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 London and Knoxville?

What is the cheapest month to fly to Knoxville?

The month of December is, on average, the cheapest month to fly to Knoxville from London, with most prices found around $379. If you aren’t able to travel during the month of December, then book flights to Knoxville from London during August instead. Flights to Knoxville in August, while not as cheap as those in December, still average around $486.

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

You are more likely to see cheaper flights to Knoxville from London when booking weeks ahead of your departure date. In general, you can expect to find flights to Knoxville for around $1,012 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Knoxville from London for as low as $653 on momondo.

Can stopping save me money on London to Knoxville flights?

You could potentially save up to 9% on your flight if you consider stops on a London to Knoxville flight.

How have London to Knoxville flight prices changed over time?

As of June 2026, prices for London to Knoxville flights are approximately 1% cheaper when compared to flights at the same time last year.

When to book flights from London to Knoxville

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

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

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

Fastest flight time

12h 33m

Direct flights

None
The fastest flight from London to Knoxville takes 12h 33m
There are no direct flights from London to Knoxville. There are no popular flight routes from London to Knoxville.
Search flight deals

Frequently asked questions about flying from London to Knoxville

  • How far is London to Knoxville McGhee Tyson by plane?

    The straight-line distance from London to Knoxville McGhee Tyson is 4078.3 mi. A reasonable flight in good conditions will take 12h 33m.

  • When did momondo last update prices for flights from London to Knoxville McGhee Tyson Airport?

    Prices for flights from London to Knoxville McGhee Tyson Airport were last updated today.

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from London to Knoxville McGhee Tyson Airport.

  • What documentation or ID do you need to fly to Knoxville McGhee Tyson Airport?

    The travel and health documents you'll need for your trip to Knoxville McGhee Tyson Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Knoxville McGhee Tyson Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Traveling to a place near Knoxville?

Book flights to Knoxville if you plan to visit one of these locations
Pigeon Forge
Gatlinburg
Cherokee
Bryson City
Morristown
Corbin
Alcoa
Maryville
Murphy
Crossville
Oak Ridge
Kodak
Newport
Lenoir City
Dandridge
Clinton
Jefferson City
Rockford

Why use momondo?

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

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 London to Knoxville for you.

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

Yes. momondo enables you to select and highlight flights to Knoxville from London with this policy.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from London to Knoxville.

I’m not ready to book a flight from London to Knoxville right now. Can momondo alert me if prices change?

If you are not ready to book a flight from London to Knoxville now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Knoxville and let you know when they change.

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