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Cheap flights from London Heathrow Airport to Knoxville from $518

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 11/5. 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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Find the cheapest flights from London Heathrow Airport to Knoxville

Cheap round-trip flights

Lufthansa Logo
7:40 am - 8:20 pmLHR-TYS
16h 40m2 stops
Lufthansa Logo
1:52 pm - 5:55 amTYS-LHR
11h 03m1 stop
$604Lufthansa
Find Deal
Wed, Oct 29 - Wed, Nov 5
Lufthansa Logo
12:05 pm - 11:59 pmLHR-TYS
15h 54m1 stop
Lufthansa Logo
2:25 pm - 10:50 amTYS-LHR
15h 25m1 stop
$617Lufthansa
Find Deal
Wed, Oct 29 - Wed, Nov 5
Virgin Atlantic Logo
8:55 am - 8:06 pmLHR-TYS
16h 11m1 stop
Virgin Atlantic Logo
3:56 pm - 10:50 amTYS-LHR
13h 54m2 stops
$624Virgin Atlantic
Find Deal
Wed, Nov 12 - Tue, Dec 16
Virgin Atlantic Logo
1:00 pm - 8:00 pmLHR-TYS
12h 00m1 stop
Virgin Atlantic Logo
6:29 am - 7:05 amTYS-LHR
19h 36m1 stop
$625Virgin Atlantic
Find Deal
Wed, Nov 12 - Tue, Dec 16
British Airways Logo
8:25 am - 8:44 pmLHR-TYS
16h 19m2 stops
British Airways Logo
3:17 pm - 7:20 amTYS-LHR
11h 03m1 stop
$627British Airways
Find Deal
Wed, Oct 29 - Wed, Nov 5
United Airlines Logo
6:35 am - 2:43 pmLHR-TYS
36h 08m2 stops
United Airlines Logo
9:50 am - 5:55 amTYS-LHR
15h 05m2 stops
$633United Airlines
Find Deal
Wed, Oct 29 - Wed, Nov 5
Multiple Airlines Logo
12:05 pm - 8:20 pmLHR-TYS
12h 15m1 stop
Multiple Airlines Logo
1:52 pm - 7:55 amTYS-LHR
13h 03m1 stop
$634Multiple Airlines
Find Deal
Wed, Oct 29 - Wed, Nov 5
United Airlines Logo
9:30 am - 10:05 amLHR-TYS
28h 35m2 stops
United Airlines Logo
9:50 am - 6:40 amTYS-LHR
15h 50m1 stop
$635United Airlines
Find Deal
Fri, Oct 31 - Fri, Nov 7
Multiple Airlines Logo
9:30 am - 10:50 pmLHR-TYS
18h 20m2 stops
Multiple Airlines Logo
9:55 am - 6:30 amTYS-LHR
15h 35m3 stops
$678Multiple Airlines
Find Deal
Fri, Oct 3 - Tue, Oct 7
British Airways Logo
12:30 pm - 8:44 pmLHR-TYS
13h 14m1 stop
British Airways Logo
5:17 pm - 9:05 amTYS-LHR
10h 48m1 stop
$762British Airways
Find Deal
Tue, Oct 14 - Tue, Oct 21

Lufthansa flights from London Heathrow Airport to Knoxville

Our best Lufthansa deals on London Heathrow Airport to Knoxville flight tickets
Lufthansa
Oct 29
LHR7:40 amLondon Heathrow
16h 40m
2 stops
TYS8:20 pmKnoxville McGhee Tyson
Nov 5
TYS1:52 pmKnoxville McGhee Tyson
11h 03m
1 stop
LHR5:55 amLondon Heathrow
$604
Find similar
Lufthansa
Oct 29
LHR12:05 pmLondon Heathrow
15h 54m
1 stop
TYS11:59 pmKnoxville McGhee Tyson
Nov 5
TYS2:25 pmKnoxville McGhee Tyson
15h 25m
1 stop
LHR10:50 amLondon Heathrow
$617
Find similar
Lufthansa
Mar 6
LHR6:35 amLondon Heathrow
17h 07m
2 stops
TYS6:42 pmKnoxville McGhee Tyson
Mar 10
TYS2:00 pmKnoxville McGhee Tyson
13h 55m
1 stop
LHR7:55 amLondon Heathrow
$632
Find similar

United Airlines flights from London Heathrow Airport to Knoxville

Our best United Airlines deals on London Heathrow Airport to Knoxville flight tickets
United Airlines
Oct 29
LHR6:35 amLondon Heathrow
36h 08m
2 stops
TYS2:43 pmKnoxville McGhee Tyson
Nov 5
TYS9:50 amKnoxville McGhee Tyson
15h 05m
2 stops
LHR5:55 amLondon Heathrow
$633
Find similar
United Airlines
Oct 31
LHR9:30 amLondon Heathrow
28h 35m
2 stops
TYS10:05 amKnoxville McGhee Tyson
Nov 7
TYS9:50 amKnoxville McGhee Tyson
15h 50m
1 stop
LHR6:40 amLondon Heathrow
$635
Find similar
United Airlines
Oct 3
LHR7:00 amLondon Heathrow
19h 11m
2 stops
TYS9:11 pmKnoxville McGhee Tyson
Oct 7
TYS10:51 amKnoxville McGhee Tyson
15h 04m
2 stops
LHR6:55 amLondon Heathrow
$643
Find similar

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 September 16, 2025.
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

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Wed 10/29

7:40 am-8:20 pm

2 stops16h 40m

Knoxville McGhee Tyson

Wed 11/5

1:52 pm-5:55 am

1 stop11h 03m

$604

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Wed 10/29

12:05 pm-11:59 pm

1 stop15h 54m

Knoxville McGhee Tyson

Wed 11/5

2:25 pm-10:50 am

1 stop15h 25m

$617

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Wed 11/12

8:55 am-8:06 pm

1 stop16h 11m

Knoxville McGhee Tyson

Tue 12/16

3:56 pm-10:50 am

2 stops13h 54m

$624

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Wed 11/12

1:00 pm-8:00 pm

1 stop12h 00m

Knoxville McGhee Tyson

Tue 12/16

6:29 am-7:05 am

1 stop19h 36m

$625

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Wed 10/29

8:25 am-8:44 pm

2 stops16h 19m

Knoxville McGhee Tyson

Wed 11/5

3:17 pm-7:20 am

1 stop11h 03m

$627

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Wed 10/29

6:35 am-2:43 pm

2 stops36h 08m

Knoxville McGhee Tyson

Wed 11/5

9:50 am-5:55 am

2 stops15h 05m

$633

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Wed 10/29

12:05 pm-8:20 pm

1 stop12h 15m

Knoxville McGhee Tyson

Wed 11/5

1:52 pm-7:55 am

1 stop13h 03m

$634

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Fri 10/31

9:30 am-10:05 am

2 stops28h 35m

Knoxville McGhee Tyson

Fri 11/7

9:50 am-6:40 am

1 stop15h 50m

$635

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Fri 10/3

9:30 am-10:50 pm

2 stops18h 20m

Knoxville McGhee Tyson

Tue 10/7

9:55 am-6:30 am

3 stops15h 35m

$678

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Tue 10/14

12:30 pm-8:44 pm

1 stop13h 14m

Knoxville McGhee Tyson

Tue 10/21

5:17 pm-9:05 am

1 stop10h 48m

$762

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 17 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?

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 $712. If you aren’t able to travel during the month of September, then book flights to Knoxville from London Heathrow Airport during November instead. Flights to Knoxville in November, while not as cheap as those in September, still average around $739.

What is the cheapest day to depart on your flight to Knoxville?

The cheapest day to depart from London Heathrow Airport to Knoxville is on a Friday. Travelers who choose to depart for Knoxville on a Friday will often find tickets for as low as $824. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from London Heathrow Airport to Knoxville for around $2,356.

What is the cheapest time of day to depart on your flight to Knoxville?

At noon is the cheapest time of day to fly from London Heathrow Airport to Knoxville when you can find flight prices for as low as $791. Flying to Knoxville at noon is an ideal time because this is during off-peak travel hours. In contrast, the most expensive time of day to depart to Knoxville is in the morning when prices are around $1,092.

How far in advance should I book a flight 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 $894 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 $720 on momondo.

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

You could potentially save up to 15% 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

Direct flights

None
There are no direct flights from London Heathrow Airport to Knoxville. There are no popular flight routes from London Heathrow Airport to Knoxville.
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  • 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 11h 37m.

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

  • 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.

  • What is the most popular airline from London Heathrow Airport to Knoxville?

Best airlines flying from London Heathrow Airport to Knoxville

Compare and see reviews for airlines that fly from London Heathrow Airport to Knoxville with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom $720Free CancellationRating
6.7
7,363 reviews
Search British Airways flights

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
Crossville
Maryville
Murphy
Alcoa
Newport
Lenoir City
Oak Ridge
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.

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