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Cheap flights from London to Knoxville from $451

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 8/31. 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 - 12:02 pmLGW  London Gatwick-TYS Knoxville McGhee Tyson
27h 02m1 stop Orlando
Multiple Airlines Logo
11:04 am - 10:00 amTYS  Knoxville McGhee Tyson-LGW London Gatwick
17h 56m1 stop Orlando Sanford Intl
$741Multiple Airlines
Sat, Sep 5 - Sat, Sep 12
United Airlines Logo
12:05 pm - 7:36 pmLHR  London Heathrow-TYS Knoxville McGhee Tyson
12h 31m1 stop Washington, D.C. Dulles Intl
United Airlines Logo
3:45 pm - 10:25 amTYS  Knoxville McGhee Tyson-LHR London Heathrow
13h 40m1 stop Newark
$742United Airlines
Wed, Nov 25 - Sat, Nov 28
Multiple Airlines Logo
2:00 pm - 12:02 pmLGW  London Gatwick-TYS Knoxville McGhee Tyson
27h 02m1 stop Orlando
Multiple Airlines Logo
9:30 am - 11:45 amTYS  Knoxville McGhee Tyson-LGW London Gatwick
21h 15m2 stops Boston Logan Intl Reykjavik Keflavik Intl
$759Multiple Airlines
Sat, Sep 5 - Sat, Sep 12
Multiple Airlines Logo
12:35 pm - 8:50 pmLGW  London Gatwick-TYS Knoxville McGhee Tyson
36h 15m1 stop Orlando
Multiple Airlines Logo
8:25 am - 8:15 amTYS  Knoxville McGhee Tyson-LGW London Gatwick
18h 50m1 stop Orlando
$768Multiple Airlines
Fri, Oct 30 - Fri, Nov 6
Scandinavian Airlines Logo
6:40 pm - 11:57 pmLHR  London Heathrow-TYS Knoxville McGhee Tyson
34h 17m2 stops Kastrup Copenhagen Atlanta Hartsfield-Jackson
Scandinavian Airlines Logo
6:09 pm - 4:00 pmTYS  Knoxville McGhee Tyson-LHR London Heathrow
16h 51m2 stops Atlanta Hartsfield-Jackson Kastrup Copenhagen
$810Scandinavian Airlines
Thu, Dec 3 - Mon, Dec 7
Scandinavian Airlines Logo
6:40 pm - 11:57 pmLHR  London Heathrow-TYS Knoxville McGhee Tyson
34h 17m2 stops Kastrup Copenhagen Atlanta Hartsfield-Jackson
Scandinavian Airlines Logo
6:09 pm - 4:00 pmTYS  Knoxville McGhee Tyson-LHR London Heathrow
16h 51m2 stops Atlanta Hartsfield-Jackson Kastrup Copenhagen
$811Scandinavian Airlines
Thu, Dec 3 - Mon, Dec 7
Scandinavian Airlines Logo
6:40 pm - 11:57 pmLHR  London Heathrow-TYS Knoxville McGhee Tyson
34h 17m2 stops Kastrup Copenhagen Atlanta Hartsfield-Jackson
Scandinavian Airlines Logo
6:09 pm - 4:00 pmTYS  Knoxville McGhee Tyson-LHR London Heathrow
16h 51m2 stops Atlanta Hartsfield-Jackson Kastrup Copenhagen
$812Scandinavian Airlines
Thu, Dec 3 - Mon, Dec 7
Scandinavian Airlines Logo
6:40 am - 10:02 pmLHR  London Heathrow-TYS Knoxville McGhee Tyson
20h 22m2 stops Kastrup Copenhagen Atlanta Hartsfield-Jackson
Scandinavian Airlines Logo
6:09 pm - 4:00 pmTYS  Knoxville McGhee Tyson-LHR London Heathrow
16h 51m2 stops Atlanta Hartsfield-Jackson Kastrup Copenhagen
$825Scandinavian Airlines
Wed, Nov 4 - Wed, Nov 18
Scandinavian Airlines Logo
7:05 am - 10:02 pmLHR  London Heathrow-TYS Knoxville McGhee Tyson
19h 57m3 stops Oslo Gardermoen Kastrup Copenhagen Atlanta Hartsfield-Jackson
Scandinavian Airlines Logo
6:09 pm - 5:40 pmTYS  Knoxville McGhee Tyson-LHR London Heathrow
18h 31m2 stops Atlanta Hartsfield-Jackson Kastrup Copenhagen
$843Scandinavian Airlines
Wed, Nov 4 - Wed, Nov 18
Multiple Airlines Logo
2:00 pm - 8:39 pmLGW  London Gatwick-TYS Knoxville McGhee Tyson
35h 39m1 stop Orlando
Multiple Airlines Logo
4:18 pm - 10:00 amTYS  Knoxville McGhee Tyson-LGW London Gatwick
12h 42m1 stop Orlando
$874Multiple Airlines
Sun, Sep 13 - Mon, Sep 21

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Iberia flights from London to Knoxville

Our best Iberia deals on London to Knoxville flight tickets
Iberia
Sep 21
LHR3:15 pmLondon Heathrow
12h 27m
1 stop
TYS10:42 pmKnoxville McGhee Tyson
Sep 28
TYS11:20 amKnoxville McGhee Tyson
19h 55m
1 stop
LHR12:15 pmLondon Heathrow
$890
Iberia
Sep 16
LHR12:15 pmLondon Heathrow
15h 27m
1 stop
TYS10:42 pmKnoxville McGhee Tyson
Sep 20
TYS8:15 pmKnoxville McGhee Tyson
33h 35m
1 stop
LHR10:50 amLondon Heathrow
$943
Iberia
Sep 16
LHR2:25 pmLondon Heathrow
13h 17m
1 stop
TYS10:42 pmKnoxville McGhee Tyson
Sep 20
TYS8:15 pmKnoxville McGhee Tyson
33h 35m
1 stop
LHR10:50 amLondon Heathrow
$945

Lufthansa flights from London to Knoxville

Our best Lufthansa deals on London to Knoxville flight tickets
Lufthansa
Sep 21
LHR8:30 amLondon Heathrow
19h 19m
2 stops
TYS10:49 pmKnoxville McGhee Tyson
Sep 28
TYS7:25 pmKnoxville McGhee Tyson
10h 15m
1 stop
LHR10:40 amLondon Heathrow
$901
Lufthansa
Sep 21
LHR9:30 amLondon Heathrow
19h 29m
2 stops
TYS11:59 pmKnoxville McGhee Tyson
Sep 28
TYS7:25 pmKnoxville McGhee Tyson
10h 15m
1 stop
LHR10:40 amLondon Heathrow
$916
Lufthansa
Aug 31
LHR9:30 amLondon Heathrow
15h 54m
2 stops
TYS8:24 pmKnoxville McGhee Tyson
Sep 7
TYS3:40 pmKnoxville McGhee Tyson
35h 15m
1 stop
LHR7:55 amLondon Heathrow
$917

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 August 10, 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 London Gatwick - TYS Knoxville McGhee Tyson

LGWTYS

London Gatwick

Sat 9/5

2:00 pm-12:02 pm

1 stop27h 02m

Knoxville McGhee Tyson

Sat 9/12

11:04 am-10:00 am

1 stop17h 56m

$741
Quickest round-trip

LondonKnoxville

LHR London Heathrow - TYS Knoxville McGhee Tyson

LHRTYS

London Heathrow

Wed 11/25

12:05 pm-7:36 pm

1 stop12h 31m

Knoxville McGhee Tyson

Sat 11/28

3:45 pm-10:25 am

1 stop13h 40m

$742

LondonKnoxville

LGW London Gatwick - TYS Knoxville McGhee Tyson

LGWTYS

London Gatwick

Sat 9/5

2:00 pm-12:02 pm

1 stop27h 02m

Knoxville McGhee Tyson

Sat 9/12

9:30 am-11:45 am

2 stops21h 15m

$759

LondonKnoxville

LGW London Gatwick - TYS Knoxville McGhee Tyson

LGWTYS

London Gatwick

Fri 10/30

12:35 pm-8:50 pm

1 stop36h 15m

Knoxville McGhee Tyson

Fri 11/6

8:25 am-8:15 am

1 stop18h 50m

$768

LondonKnoxville

LHR London Heathrow - TYS Knoxville McGhee Tyson

LHRTYS

London Heathrow

Thu 12/3

6:40 pm-11:57 pm

2 stops34h 17m

Knoxville McGhee Tyson

Mon 12/7

6:09 pm-4:00 pm

2 stops16h 51m

$810

LondonKnoxville

LHR London Heathrow - TYS Knoxville McGhee Tyson

LHRTYS

London Heathrow

Thu 12/3

6:40 pm-11:57 pm

2 stops34h 17m

Knoxville McGhee Tyson

Mon 12/7

6:09 pm-4:00 pm

2 stops16h 51m

$811

LondonKnoxville

LHR London Heathrow - TYS Knoxville McGhee Tyson

LHRTYS

London Heathrow

Thu 12/3

6:40 pm-11:57 pm

2 stops34h 17m

Knoxville McGhee Tyson

Mon 12/7

6:09 pm-4:00 pm

2 stops16h 51m

$812

LondonKnoxville

LHR London Heathrow - TYS Knoxville McGhee Tyson

LHRTYS

London Heathrow

Wed 11/4

6:40 am-10:02 pm

2 stops20h 22m

Knoxville McGhee Tyson

Wed 11/18

6:09 pm-4:00 pm

2 stops16h 51m

$825

LondonKnoxville

LHR London Heathrow - TYS Knoxville McGhee Tyson

LHRTYS

London Heathrow

Wed 11/4

7:05 am-10:02 pm

3 stops19h 57m

Knoxville McGhee Tyson

Wed 11/18

6:09 pm-5:40 pm

2 stops18h 31m

$843

LondonKnoxville

LGW London Gatwick - TYS Knoxville McGhee Tyson

LGWTYS

London Gatwick

Sun 9/13

2:00 pm-8:39 pm

1 stop35h 39m

Knoxville McGhee Tyson

Mon 9/21

4:18 pm-10:00 am

1 stop12h 42m

$874

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?

Prices are currently low for flights on this route.

Typical prices usually range from $779 to $1,599.
The lowest price recently found on this route was $741.

What is the cheapest month to fly to Knoxville?

The month of September is, on average, the cheapest month to fly to Knoxville from London, with most prices found around $845. If you aren’t able to travel during the month of September, then book flights to Knoxville from London during November instead. Flights to Knoxville in November, while not as cheap as those in September, still average around $851.

How have London to Knoxville flight prices changed over time?

As of August 2026, prices for London to Knoxville flights are approximately 22% more expensive 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

13h 37m

Direct flights

None
The fastest flight from London to Knoxville takes 13h 37m
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 13h 37m.

  • 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
Crossville
Murphy
Oak Ridge
Kodak
Newport
Dandridge
Lenoir City
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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