Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from London Heathrow Airport to Knoxville from $540

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 9/4. 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.
Lufthansa Logo
7:30 am - 7:17 pm
LHR
-
TYS
16h 47m
2 stops
Lufthansa Logo
2:00 pm - 12:50 pm
TYS
-
LHR
17h 50m
2 stops
$854Lufthansa
Sun, Nov 22 - Tue, Dec 1
Lufthansa Logo
10:30 am - 11:37 pm
LHR
-
TYS
18h 07m
2 stops
Lufthansa Logo
2:00 pm - 5:55 am
TYS
-
LHR
10h 55m
1 stop
$858Lufthansa
Sat, Nov 21 - Fri, Nov 27
Lufthansa Logo
7:30 am - 8:24 pm
LHR
-
TYS
17h 54m
2 stops
Lufthansa Logo
9:45 am - 6:55 am
TYS
-
LHR
16h 10m
1 stop
$862Lufthansa
Tue, Sep 1 - Thu, Sep 10
Lufthansa Logo
7:30 am - 7:17 pm
LHR
-
TYS
16h 47m
2 stops
Lufthansa Logo
2:20 pm - 6:40 am
TYS
-
LHR
11h 20m
1 stop
$867Lufthansa
Sun, Nov 22 - Tue, Dec 1
British Airways Logo
12:30 pm - 8:07 pm
LHR
-
TYS
12h 37m
1 stop
British Airways Logo
3:41 pm - 6:55 am
TYS
-
LHR
10h 14m
1 stop
$868British Airways
Tue, Sep 1 - Thu, Sep 10
United Airlines Logo
7:25 am - 8:24 pm
LHR
-
TYS
17h 59m
2 stops
United Airlines Logo
7:20 pm - 6:55 am
TYS
-
LHR
30h 35m
1 stop
$869United Airlines
Thu, Sep 3 - Mon, Sep 7
United Airlines Logo
7:25 am - 8:24 pm
LHR
-
TYS
17h 59m
2 stops
United Airlines Logo
7:20 pm - 6:55 am
TYS
-
LHR
30h 35m
1 stop
$870United Airlines
Thu, Sep 3 - Mon, Sep 7
United Airlines Logo
6:50 am - 7:17 pm
LHR
-
TYS
17h 27m
2 stops
United Airlines Logo
10:16 am - 6:20 am
TYS
-
LHR
15h 04m
2 stops
$872United Airlines
Sat, Nov 21 - Fri, Nov 27
Lufthansa Logo
12:05 pm - 7:17 pm
LHR
-
TYS
12h 12m
1 stop
Lufthansa Logo
2:00 pm - 7:55 am
TYS
-
LHR
12h 55m
1 stop
$877Lufthansa
Sun, Nov 22 - Tue, Dec 1
Lufthansa Logo
8:30 am - 8:44 pm
LHR
-
TYS
17h 14m
2 stops
Lufthansa Logo
7:19 pm - 10:40 am
TYS
-
LHR
10h 21m
1 stop
$885Lufthansa
Fri, Jul 10 - Sat, Jul 18

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Lufthansa flights from London Heathrow Airport to Knoxville

Our best Lufthansa deals on London Heathrow Airport to Knoxville flight tickets
Lufthansa
Nov 22
LHR7:30 amLondon Heathrow
16h 47m
2 stops
TYS7:17 pmKnoxville McGhee Tyson
Dec 1
TYS2:00 pmKnoxville McGhee Tyson
17h 50m
2 stops
LHR12:50 pmLondon Heathrow
$854
Lufthansa
Nov 21
LHR10:30 amLondon Heathrow
18h 07m
2 stops
TYS11:37 pmKnoxville McGhee Tyson
Nov 27
TYS2:00 pmKnoxville McGhee Tyson
10h 55m
1 stop
LHR5:55 amLondon Heathrow
$858
Lufthansa
Sep 1
LHR7:30 amLondon Heathrow
17h 54m
2 stops
TYS8:24 pmKnoxville McGhee Tyson
Sep 10
TYS9:45 amKnoxville McGhee Tyson
16h 10m
1 stop
LHR6:55 amLondon Heathrow
$862

United Airlines flights from London Heathrow Airport to Knoxville

Our best United Airlines deals on London Heathrow Airport to Knoxville flight tickets
United Airlines
Sep 3
LHR7:25 amLondon Heathrow
17h 59m
2 stops
TYS8:24 pmKnoxville McGhee Tyson
Sep 7
TYS7:20 pmKnoxville McGhee Tyson
30h 35m
1 stop
LHR6:55 amLondon Heathrow
$869
United Airlines
Sep 3
LHR7:25 amLondon Heathrow
17h 59m
2 stops
TYS8:24 pmKnoxville McGhee Tyson
Sep 7
TYS7:20 pmKnoxville McGhee Tyson
30h 35m
1 stop
LHR6:55 amLondon Heathrow
$870
United Airlines
Nov 21
LHR6:50 amLondon Heathrow
17h 27m
2 stops
TYS7:17 pmKnoxville McGhee Tyson
Nov 27
TYS10:16 amKnoxville McGhee Tyson
15h 04m
2 stops
LHR6:20 amLondon Heathrow
$872

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 June 15, 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

Sun 11/22

7:30 am-7:17 pm

2 stops16h 47m

Knoxville McGhee Tyson

Tue 12/1

2:00 pm-12:50 pm

2 stops17h 50m

$854

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Sat 11/21

10:30 am-11:37 pm

2 stops18h 07m

Knoxville McGhee Tyson

Fri 11/27

2:00 pm-5:55 am

1 stop10h 55m

$858

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Tue 9/1

7:30 am-8:24 pm

2 stops17h 54m

Knoxville McGhee Tyson

Thu 9/10

9:45 am-6:55 am

1 stop16h 10m

$862

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Sun 11/22

7:30 am-7:17 pm

2 stops16h 47m

Knoxville McGhee Tyson

Tue 12/1

2:20 pm-6:40 am

1 stop11h 20m

$867
Quickest round-trip

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Tue 9/1

12:30 pm-8:07 pm

1 stop12h 37m

Knoxville McGhee Tyson

Thu 9/10

3:41 pm-6:55 am

1 stop10h 14m

$868

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Thu 9/3

7:25 am-8:24 pm

2 stops17h 59m

Knoxville McGhee Tyson

Mon 9/7

7:20 pm-6:55 am

1 stop30h 35m

$869

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Thu 9/3

7:25 am-8:24 pm

2 stops17h 59m

Knoxville McGhee Tyson

Mon 9/7

7:20 pm-6:55 am

1 stop30h 35m

$870

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Sat 11/21

6:50 am-7:17 pm

2 stops17h 27m

Knoxville McGhee Tyson

Fri 11/27

10:16 am-6:20 am

2 stops15h 04m

$872

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Sun 11/22

12:05 pm-7:17 pm

1 stop12h 12m

Knoxville McGhee Tyson

Tue 12/1

2:00 pm-7:55 am

1 stop12h 55m

$877

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Fri 7/10

8:30 am-8:44 pm

2 stops17h 14m

Knoxville McGhee Tyson

Sat 7/18

7:19 pm-10:40 am

1 stop10h 21m

$885

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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?

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 $692. 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 $765.

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

You are more likely to see cheaper flights to Knoxville from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Knoxville for around $1,000 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Knoxville from London Heathrow Airport for as low as $653 on momondo.

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

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

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

14h 39m

Direct flights

None
The fastest flight from London Heathrow Airport to Knoxville takes 14h 39m
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 14h 39m.

  • 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
Murphy
Crossville
Oak Ridge
Newport
Lenoir City
Kodak
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.

An easier way to manage your Knoxville 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.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Wed 7/15
Wed 7/22
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States