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Cheap flights from London Heathrow Airport to Knoxville from $627

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 11/15. 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

Enter your travel dates to find the best prices.
United Airlines Logo
9:00 am - 9:04 pmLHR-TYS
17h 04m2 stops
United Airlines Logo
11:07 am - 6:40 amTYS-LHR
14h 33m2 stops
$765United Airlines
Find Deal
Wed, Dec 10 - Thu, Jan 22
United Airlines Logo
7:30 am - 7:29 pmLHR-TYS
16h 59m2 stops
United Airlines Logo
7:20 pm - 10:50 amTYS-LHR
10h 30m1 stop
$771United Airlines
Find Deal
Wed, Dec 10 - Thu, Jan 22
British Airways Logo
12:35 pm - 9:40 pmLHR-TYS
14h 05m1 stop
British Airways Logo
7:44 am - 6:35 amTYS-LHR
17h 51m1 stop
$778British Airways
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Wed, Dec 10 - Thu, Jan 22
United Airlines Logo
12:05 pm - 7:29 pmLHR-TYS
12h 24m1 stop
United Airlines Logo
7:20 pm - 10:50 amTYS-LHR
10h 30m1 stop
$803United Airlines
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Wed, Dec 10 - Thu, Jan 22
Delta Logo
6:30 am - 8:06 pmLHR-TYS
18h 36m2 stops
Delta Logo
6:35 am - 7:05 amTYS-LHR
19h 30m1 stop
$828Delta
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Wed, Nov 12 - Thu, Nov 20
Delta Logo
6:30 am - 8:06 pmLHR-TYS
18h 36m2 stops
Delta Logo
10:22 am - 7:05 amTYS-LHR
15h 43m2 stops
$833Delta
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Wed, Nov 12 - Thu, Nov 20
Lufthansa Logo
6:35 am - 7:04 pmLHR-TYS
17h 29m2 stops
Lufthansa Logo
1:53 pm - 5:55 amTYS-LHR
12h 02m1 stop
$834Lufthansa
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Fri, Mar 6 - Tue, Mar 10
Scandinavian Airlines Logo
6:40 am - 11:41 pmLHR-TYS
22h 01m2 stops
Scandinavian Airlines Logo
3:57 pm - 9:40 pmTYS-LHR
24h 43m2 stops
$835Scandinavian Airlines
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Thu, Nov 20 - Mon, Dec 8
British Airways Logo
6:45 am - 9:00 pmLHR-TYS
19h 15m2 stops
British Airways Logo
5:45 pm - 6:55 amTYS-LHR
32h 10m1 stop
$838British Airways
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Wed, Dec 3 - Sat, Dec 6
Lufthansa Logo
10:25 am - 9:04 pmLHR-TYS
15h 39m1 stop
Lufthansa Logo
1:59 pm - 5:55 amTYS-LHR
10h 56m1 stop
$863Lufthansa
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Wed, Dec 17 - Tue, Jan 20

United Airlines flights from London Heathrow Airport to Knoxville

Our best United Airlines deals on London Heathrow Airport to Knoxville flight tickets
United Airlines
Dec 10
LHR9:00 amLondon Heathrow
17h 04m
2 stops
TYS9:04 pmKnoxville McGhee Tyson
Jan 22
TYS11:07 amKnoxville McGhee Tyson
14h 33m
2 stops
LHR6:40 amLondon Heathrow
$765
Find similar
United Airlines
Dec 10
LHR7:30 amLondon Heathrow
16h 59m
2 stops
TYS7:29 pmKnoxville McGhee Tyson
Jan 22
TYS7:20 pmKnoxville McGhee Tyson
10h 30m
1 stop
LHR10:50 amLondon Heathrow
$771
Find similar
United Airlines
Dec 10
LHR12:05 pmLondon Heathrow
12h 24m
1 stop
TYS7:29 pmKnoxville McGhee Tyson
Jan 22
TYS7:20 pmKnoxville McGhee Tyson
10h 30m
1 stop
LHR10:50 amLondon Heathrow
$803
Find similar

British Airways flights from London Heathrow Airport to Knoxville

Our best British Airways deals on London Heathrow Airport to Knoxville flight tickets
British Airways
Dec 10
LHR12:35 pmLondon Heathrow
14h 05m
1 stop
TYS9:40 pmKnoxville McGhee Tyson
Jan 22
TYS7:44 amKnoxville McGhee Tyson
17h 51m
1 stop
LHR6:35 amLondon Heathrow
$778
Find similar
British Airways
Dec 3
LHR6:45 amLondon Heathrow
19h 15m
2 stops
TYS9:00 pmKnoxville McGhee Tyson
Dec 6
TYS5:45 pmKnoxville McGhee Tyson
32h 10m
1 stop
LHR6:55 amLondon Heathrow
$838
Find similar
British Airways
Nov 12
LHR2:10 pmLondon Heathrow
12h 14m
1 stop
TYS9:24 pmKnoxville McGhee Tyson
Nov 20
TYS10:54 amKnoxville McGhee Tyson
15h 56m
1 stop
LHR7:50 amLondon Heathrow
$840
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 October 30, 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 12/10

9:00 am-9:04 pm

2 stops17h 04m

Knoxville McGhee Tyson

Thu 1/22

11:07 am-6:40 am

2 stops14h 33m

$765

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Wed 12/10

7:30 am-7:29 pm

2 stops16h 59m

Knoxville McGhee Tyson

Thu 1/22

7:20 pm-10:50 am

1 stop10h 30m

$771

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Wed 12/10

12:35 pm-9:40 pm

1 stop14h 05m

Knoxville McGhee Tyson

Thu 1/22

7:44 am-6:35 am

1 stop17h 51m

$778

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Wed 12/10

12:05 pm-7:29 pm

1 stop12h 24m

Knoxville McGhee Tyson

Thu 1/22

7:20 pm-10:50 am

1 stop10h 30m

$803

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Wed 11/12

6:30 am-8:06 pm

2 stops18h 36m

Knoxville McGhee Tyson

Thu 11/20

6:35 am-7:05 am

1 stop19h 30m

$828

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Wed 11/12

6:30 am-8:06 pm

2 stops18h 36m

Knoxville McGhee Tyson

Thu 11/20

10:22 am-7:05 am

2 stops15h 43m

$833

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Fri 3/6

6:35 am-7:04 pm

2 stops17h 29m

Knoxville McGhee Tyson

Tue 3/10

1:53 pm-5:55 am

1 stop12h 02m

$834

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Thu 11/20

6:40 am-11:41 pm

2 stops22h 01m

Knoxville McGhee Tyson

Mon 12/8

3:57 pm-9:40 pm

2 stops24h 43m

$835

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Wed 12/3

6:45 am-9:00 pm

2 stops19h 15m

Knoxville McGhee Tyson

Sat 12/6

5:45 pm-6:55 am

1 stop32h 10m

$838

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Wed 12/17

10:25 am-9:04 pm

1 stop15h 39m

Knoxville McGhee Tyson

Tue 1/20

1:59 pm-5:55 am

1 stop10h 56m

$863

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?

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 $704. 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 $713.

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 $908 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 1% 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 43m.

  • 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
7,487 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
Oak Ridge
Lenoir City
Newport
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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