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Cheap flights from London Heathrow Airport to Knoxville from £416

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 12/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from London Heathrow Airport to Knoxville

Cheap return flights

Enter your travel dates to find the best prices.
United Airlines Logo
09:00 - 23:08
LHR
-
TYS
19h 08m
2 stops
United Airlines Logo
10:49 - 05:55
TYS
-
LHR
14h 06m
2 stops
£641United Airlines
Wed, 15 Apr - Mon, 20 Apr
United Airlines Logo
09:30 - 19:42
LHR
-
TYS
15h 12m
2 stops
United Airlines Logo
19:20 - 10:40
TYS
-
LHR
10h 20m
1 stop
£642United Airlines
Mon, 13 Apr - Wed, 22 Apr
United Airlines Logo
07:25 - 19:42
LHR
-
TYS
17h 17m
2 stops
United Airlines Logo
10:49 - 07:15
TYS
-
LHR
15h 26m
2 stops
£644United Airlines
Wed, 15 Apr - Wed, 22 Apr
United Airlines Logo
10:50 - 22:43
LHR
-
TYS
16h 53m
2 stops
United Airlines Logo
09:40 - 06:55
TYS
-
LHR
16h 15m
1 stop
£644United Airlines
Tue, 14 Apr - Mon, 20 Apr
British Airways Logo
12:30 - 21:57
LHR
-
TYS
14h 27m
1 stop
British Airways Logo
17:57 - 12:50
TYS
-
LHR
13h 53m
1 stop
£652British Airways
Wed, 15 Apr - Wed, 22 Apr
British Airways Logo
16:55 - 23:55
LHR
-
TYS
12h 00m
1 stop
British Airways Logo
14:06 - 12:50
TYS
-
LHR
17h 44m
1 stop
£653British Airways
Mon, 13 Apr - Thu, 23 Apr
British Airways Logo
16:55 - 23:55
LHR
-
TYS
12h 00m
1 stop
British Airways Logo
20:48 - 07:40
TYS
-
LHR
29h 52m
1 stop
£655British Airways
Mon, 13 Apr - Sun, 19 Apr
British Airways Logo
09:15 - 17:39
LHR
-
TYS
13h 24m
1 stop
British Airways Logo
13:42 - 06:55
TYS
-
LHR
12h 13m
1 stop
£656British Airways
Tue, 14 Apr - Tue, 21 Apr
British Airways Logo
12:15 - 20:18
LHR
-
TYS
13h 03m
1 stop
British Airways Logo
14:06 - 06:55
TYS
-
LHR
11h 49m
1 stop
£657British Airways
Wed, 15 Apr - Wed, 22 Apr
British Airways Logo
09:15 - 17:07
LHR
-
TYS
12h 52m
1 stop
British Airways Logo
11:31 - 09:05
TYS
-
LHR
16h 34m
1 stop
£658British Airways
Wed, 15 Apr - Thu, 23 Apr

United Airlines flights from London Heathrow Airport to Knoxville

Our best United Airlines deals on London Heathrow Airport to Knoxville flight tickets
United Airlines
15 Apr
LHR09:00London Heathrow
19h 08m
2 stops
TYS23:08Knoxville McGhee Tyson
20 Apr
TYS10:49Knoxville McGhee Tyson
14h 06m
2 stops
LHR05:55London Heathrow
£641
United Airlines
13 Apr
LHR09:30London Heathrow
15h 12m
2 stops
TYS19:42Knoxville McGhee Tyson
22 Apr
TYS19:20Knoxville McGhee Tyson
10h 20m
1 stop
LHR10:40London Heathrow
£642
United Airlines
15 Apr
LHR10:50London Heathrow
17h 18m
2 stops
TYS23:08Knoxville McGhee Tyson
22 Apr
TYS11:25Knoxville McGhee Tyson
15h 20m
1 stop
LHR07:45London Heathrow
£644

Delta flights from London Heathrow Airport to Knoxville

Our best Delta deals on London Heathrow Airport to Knoxville flight tickets
Delta
14 Apr
LHR08:40London Heathrow
16h 26m
2 stops
TYS20:06Knoxville McGhee Tyson
21 Apr
TYS17:54Knoxville McGhee Tyson
13h 11m
2 stops
LHR12:05London Heathrow
£668
Delta
14 Apr
LHR11:45London Heathrow
17h 09m
2 stops
TYS23:54Knoxville McGhee Tyson
21 Apr
TYS17:26Knoxville McGhee Tyson
13h 39m
2 stops
LHR12:05London Heathrow
£672
Delta
13 Apr
LHR06:30London Heathrow
15h 12m
2 stops
TYS16:42Knoxville McGhee Tyson
23 Apr
TYS15:01Knoxville McGhee Tyson
10h 24m
1 stop
LHR06:25London Heathrow
£689

momondo Fare Finder

 
Customise 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 279,928 searches. Data last updated 19 March 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 return flight

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Wed 15/4

09:00-23:08

2 stops19h 08m

Knoxville McGhee Tyson

Mon 20/4

10:49-05:55

2 stops14h 06m

£641

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Mon 13/4

09:30-19:42

2 stops15h 12m

Knoxville McGhee Tyson

Wed 22/4

19:20-10:40

1 stop10h 20m

£642

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Wed 15/4

07:25-19:42

2 stops17h 17m

Knoxville McGhee Tyson

Wed 22/4

10:49-07:15

2 stops15h 26m

£644

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Tue 14/4

10:50-22:43

2 stops16h 53m

Knoxville McGhee Tyson

Mon 20/4

09:40-06:55

1 stop16h 15m

£644

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Wed 15/4

12:30-21:57

1 stop14h 27m

Knoxville McGhee Tyson

Wed 22/4

17:57-12:50

1 stop13h 53m

£652

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Mon 13/4

16:55-23:55

1 stop12h 00m

Knoxville McGhee Tyson

Thu 23/4

14:06-12:50

1 stop17h 44m

£653

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Mon 13/4

16:55-23:55

1 stop12h 00m

Knoxville McGhee Tyson

Sun 19/4

20:48-07:40

1 stop29h 52m

£655

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Tue 14/4

09:15-17:39

1 stop13h 24m

Knoxville McGhee Tyson

Tue 21/4

13:42-06:55

1 stop12h 13m

£656
Fastest return journey

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Wed 15/4

12:15-20:18

1 stop13h 03m

Knoxville McGhee Tyson

Wed 22/4

14:06-06:55

1 stop11h 49m

£657

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Wed 15/4

09:15-17:07

1 stop12h 52m

Knoxville McGhee Tyson

Thu 23/4

11:31-09:05

1 stop16h 34m

£658

Flights are sorted by cheapest return 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 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 £521. If you aren’t able to travel to Knoxville during the month of September, then flying in March is also cheap. Prices for this month can be found on momondo for an average of £565.

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 £726 when searching weeks before you fly. 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 £509 on momondo.

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

You could potentially save up to 23% 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 return 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

13h 03m

Direct flights

None
The fastest flight from London Heathrow Airport to Knoxville takes 13h 03m
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

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

    The distance between London Heathrow and Knoxville McGhee Tyson is about 4065.6 mi. A reasonable flight in good conditions will take 13h 03m.

  • 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 are updated 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 that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check 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 required travel and health documents for your Knoxville McGhee Tyson Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Knoxville McGhee Tyson Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • 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
LufthansaPriceFrom £459Free CancellationRating
6.8
7,857 reviews
Search Lufthansa flights
United AirlinesPriceFrom £470Free CancellationRating
7.4
9,443 reviews
Search United Airlines flights
British AirwaysPriceFrom £479Free CancellationRating
6.7
7,801 reviews
Search British Airways flights
Virgin AtlanticPriceFrom £513Free CancellationRating
7.5
682 reviews
Search Virgin Atlantic flights
FinnairPriceFrom £519Free CancellationRating
7.6
1,373 reviews
Search Finnair flights

Travelling to a place near Knoxville?

Book flights to Knoxville if you plan to visit one of these locations
Pigeon Forge
Gatlinburg
Newport

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from London to Knoxville . Millions of users trust and use momondo every year so you are in good hands.

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

momondo does allow users to show only those flights to Knoxville from London which offer a flexible booking policy as well as other useful filters and features.

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

Once you have performed a search for London to Knoxville flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from London to Knoxville right now. Can momondo alert me if prices change?

Yes. momondo can track prices for London to Knoxville flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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