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Cheap flights from London Heathrow Airport to Knoxville from $542

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 Heathrow Airport to Knoxville departing on 9/21. 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 Heathrow Airport to Knoxville

Cheap round-trip flights

Enter your travel dates to find the best prices.
Scandinavian Airlines Logo
6:40 am - 10:27 pm
LHR
-
TYS
20h 47m
2 stops
Scandinavian Airlines Logo
2:08 pm - 6:30 pm
TYS
-
LHR
23h 22m
2 stops
$702Scandinavian Airlines
Thu, Sep 10 - Thu, Sep 17
United Airlines Logo
4:40 pm - 11:59 pm
LHR
-
TYS
12h 19m
1 stop
United Airlines Logo
6:02 pm - 11:55 am
TYS
-
LHR
12h 53m
1 stop
$732United Airlines
Mon, Aug 31 - Mon, Sep 7
Scandinavian Airlines Logo
6:40 am - 11:52 pm
LHR
-
TYS
22h 12m
2 stops
Scandinavian Airlines Logo
5:45 pm - 1:35 pm
TYS
-
LHR
14h 50m
2 stops
$773Scandinavian Airlines
Thu, Sep 3 - Fri, Sep 11
Scandinavian Airlines Logo
6:40 am - 10:27 pm
LHR
-
TYS
20h 47m
2 stops
Scandinavian Airlines Logo
2:08 pm - 6:30 pm
TYS
-
LHR
23h 22m
2 stops
$775Scandinavian Airlines
Thu, Sep 10 - Thu, Sep 17
Scandinavian Airlines Logo
6:40 am - 11:52 pm
LHR
-
TYS
22h 12m
2 stops
Scandinavian Airlines Logo
2:16 pm - 6:30 pm
TYS
-
LHR
23h 14m
2 stops
$777Scandinavian Airlines
Thu, Aug 27 - Thu, Sep 3
Scandinavian Airlines Logo
6:40 am - 11:52 pm
LHR
-
TYS
22h 12m
3 stops
Scandinavian Airlines Logo
5:45 pm - 4:00 pm
TYS
-
LHR
17h 15m
2 stops
$780Scandinavian Airlines
Thu, Sep 3 - Fri, Sep 11
Scandinavian Airlines Logo
6:40 am - 10:27 pm
LHR
-
TYS
20h 47m
3 stops
Scandinavian Airlines Logo
4:57 pm - 4:00 pm
TYS
-
LHR
18h 03m
2 stops
$784Scandinavian Airlines
Fri, Sep 11 - Fri, Sep 18
Lufthansa Logo
8:30 am - 8:24 pm
LHR
-
TYS
16h 54m
2 stops
Lufthansa Logo
7:20 pm - 10:40 am
TYS
-
LHR
10h 20m
1 stop
$891Lufthansa
Wed, Sep 2 - Mon, Sep 14
Lufthansa Logo
8:30 am - 8:24 pm
LHR
-
TYS
16h 54m
2 stops
Lufthansa Logo
6:02 pm - 7:40 pm
TYS
-
LHR
20h 38m
2 stops
$895Lufthansa
Wed, Sep 2 - Mon, Sep 14
British Airways Logo
9:15 am - 5:31 pm
LHR
-
TYS
13h 16m
1 stop
British Airways Logo
4:46 pm - 7:50 am
TYS
-
LHR
10h 04m
1 stop
$898British Airways
Mon, Sep 14 - Wed, Sep 23

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Lufthansa flights from London Heathrow Airport to Knoxville

Our best Lufthansa deals on London Heathrow Airport to Knoxville flight tickets
Lufthansa
Sep 2
LHR8:30 amLondon Heathrow
16h 54m
2 stops
TYS8:24 pmKnoxville McGhee Tyson
Sep 14
TYS7:20 pmKnoxville McGhee Tyson
10h 20m
1 stop
LHR10:40 amLondon Heathrow
$891
Lufthansa
Sep 2
LHR8:30 amLondon Heathrow
16h 54m
2 stops
TYS8:24 pmKnoxville McGhee Tyson
Sep 14
TYS6:02 pmKnoxville McGhee Tyson
20h 38m
2 stops
LHR7:40 pmLondon Heathrow
$895
Lufthansa
Nov 22
LHR7:30 pmLondon Heathrow
30h 24m
2 stops
TYS8:54 pmKnoxville McGhee Tyson
Dec 1
TYS2:20 pmKnoxville McGhee Tyson
11h 20m
1 stop
LHR6:40 amLondon Heathrow
$909

Delta flights from London Heathrow Airport to Knoxville

Our best Delta deals on London Heathrow Airport to Knoxville flight tickets
Delta
Sep 14
LHR6:30 amLondon Heathrow
16h 08m
2 stops
TYS5:38 pmKnoxville McGhee Tyson
Sep 21
TYS10:26 amKnoxville McGhee Tyson
15h 44m
2 stops
LHR7:10 amLondon Heathrow
$960
Delta
Sep 15
LHR6:30 amLondon Heathrow
17h 27m
2 stops
TYS6:57 pmKnoxville McGhee Tyson
Sep 22
TYS11:46 amKnoxville McGhee Tyson
17h 34m
2 stops
LHR10:20 amLondon Heathrow
$963

momondo Fare Finder

 
Customize your flight search to find flights from London Heathrow Airport 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 1, 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Knoxville that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Thu 9/10

6:40 am-10:27 pm

2 stops20h 47m

Knoxville McGhee Tyson

Thu 9/17

2:08 pm-6:30 pm

2 stops23h 22m

$702

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Mon 8/31

4:40 pm-11:59 pm

1 stop12h 19m

Knoxville McGhee Tyson

Mon 9/7

6:02 pm-11:55 am

1 stop12h 53m

$732

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Thu 9/3

6:40 am-11:52 pm

2 stops22h 12m

Knoxville McGhee Tyson

Fri 9/11

5:45 pm-1:35 pm

2 stops14h 50m

$773

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Thu 9/10

6:40 am-10:27 pm

2 stops20h 47m

Knoxville McGhee Tyson

Thu 9/17

2:08 pm-6:30 pm

2 stops23h 22m

$775

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Thu 8/27

6:40 am-11:52 pm

2 stops22h 12m

Knoxville McGhee Tyson

Thu 9/3

2:16 pm-6:30 pm

2 stops23h 14m

$777

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Thu 9/3

6:40 am-11:52 pm

3 stops22h 12m

Knoxville McGhee Tyson

Fri 9/11

5:45 pm-4:00 pm

2 stops17h 15m

$780

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Fri 9/11

6:40 am-10:27 pm

3 stops20h 47m

Knoxville McGhee Tyson

Fri 9/18

4:57 pm-4:00 pm

2 stops18h 03m

$784

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Wed 9/2

8:30 am-8:24 pm

2 stops16h 54m

Knoxville McGhee Tyson

Mon 9/14

7:20 pm-10:40 am

1 stop10h 20m

$891

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Wed 9/2

8:30 am-8:24 pm

2 stops16h 54m

Knoxville McGhee Tyson

Mon 9/14

6:02 pm-7:40 pm

2 stops20h 38m

$895
Quickest round-trip

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Mon 9/14

9:15 am-5:31 pm

1 stop13h 16m

Knoxville McGhee Tyson

Wed 9/23

4:46 pm-7:50 am

1 stop10h 04m

$898

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 Heathrow Airport 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 Heathrow Airport and Knoxville?

Prices are currently low for flights on this route.

Typical prices usually range from $1,099 to $1,239.
The lowest price recently found on this route was $702.

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 Heathrow Airport, with most prices found around $740. If you aren’t able to travel during the month of September, then book flights to Knoxville from London Heathrow Airport during March instead. Flights to Knoxville in March, while not as cheap as those in September, still average around $797.

When to book flights from London Heathrow Airport to Knoxville

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

Cheap London Heathrow Airport to Knoxville (LHR to TYS) flight deals and tips

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

Fastest flight time

12h 33m

Direct flights

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

Frequently asked questions about flying from London Heathrow Airport to Knoxville

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

    London Heathrow and Knoxville McGhee Tyson are 4065.6 mi apart from one another. By plane, this route typically takes 12h 33m.

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

    Prices for flights from London Heathrow Airport to Knoxville McGhee Tyson Airport refresh daily.

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

    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 London Heathrow Airport to Knoxville McGhee Tyson Airport.

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

    The travel and health documents required for your trip to Knoxville McGhee Tyson Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Knoxville McGhee Tyson Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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
Lenoir City
Dandridge
Clinton
Jefferson City
Rockford

Why use momondo?

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

Finding the right flight to Knoxville from London 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 Knoxville quick and easy, saving you time and money.

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

Yes. All flights to Knoxville from London on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

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 Knoxville from London.

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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