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Cheap flights from London Heathrow Airport to Knoxville from £476

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 15/11. 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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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 - 10:13LHR-TYS
30h 13m2 stops
United Airlines Logo
07:00 - 07:10TYS-LHR
19h 10m2 stops
£577United Airlines
Find Deal
Tue, 9 Dec - Tue, 16 Dec
United Airlines Logo
09:00 - 21:04LHR-TYS
17h 04m2 stops
United Airlines Logo
11:07 - 06:40TYS-LHR
14h 33m2 stops
£581United Airlines
Find Deal
Wed, 10 Dec - Thu, 22 Jan
British Airways Logo
12:35 - 21:40LHR-TYS
14h 05m1 stop
British Airways Logo
07:44 - 06:35TYS-LHR
17h 51m1 stop
£590British Airways
Find Deal
Wed, 10 Dec - Thu, 22 Jan
Virgin Atlantic Logo
08:55 - 20:05LHR-TYS
16h 10m1 stop
Virgin Atlantic Logo
15:57 - 07:50TYS-LHR
10h 53m1 stop
£600Virgin Atlantic
Find Deal
Tue, 9 Dec - Tue, 16 Dec
Lufthansa Logo
06:35 - 19:04LHR-TYS
17h 29m2 stops
Lufthansa Logo
19:00 - 11:15TYS-LHR
12h 15m1 stop
£614Lufthansa
Find Deal
Fri, 6 Mar - Tue, 10 Mar
Lufthansa Logo
06:35 - 19:04LHR-TYS
17h 29m2 stops
Lufthansa Logo
13:53 - 05:55TYS-LHR
12h 02m1 stop
£633Lufthansa
Find Deal
Fri, 6 Mar - Tue, 10 Mar
Virgin Atlantic Logo
08:55 - 23:41LHR-TYS
19h 46m2 stops
Virgin Atlantic Logo
15:57 - 10:50TYS-LHR
13h 53m2 stops
£635Virgin Atlantic
Find Deal
Thu, 20 Nov - Mon, 8 Dec
British Airways Logo
06:45 - 21:00LHR-TYS
19h 15m2 stops
British Airways Logo
17:45 - 06:55TYS-LHR
32h 10m1 stop
£636British Airways
Find Deal
Wed, 3 Dec - Sat, 6 Dec
Finnair Logo
12:35 - 21:24LHR-TYS
13h 49m1 stop
Finnair Logo
16:31 - 09:15TYS-LHR
11h 44m1 stop
£641Finnair
Find Deal
Mon, 17 Nov - Sat, 6 Dec
Finnair Logo
09:55 - 18:01LHR-TYS
13h 06m1 stop
Finnair Logo
18:29 - 10:25TYS-LHR
10h 56m1 stop
£644Finnair
Find Deal
Thu, 20 Nov - Mon, 8 Dec

United Airlines flights from London Heathrow Airport to Knoxville

Our best United Airlines deals on London Heathrow Airport to Knoxville flight tickets
United Airlines
9 Dec
LHR09:00London Heathrow
30h 13m
2 stops
TYS10:13Knoxville McGhee Tyson
16 Dec
TYS07:00Knoxville McGhee Tyson
19h 10m
2 stops
LHR07:10London Heathrow
£577
Find similar
United Airlines
10 Dec
LHR09:00London Heathrow
17h 04m
2 stops
TYS21:04Knoxville McGhee Tyson
22 Jan
TYS11:07Knoxville McGhee Tyson
14h 33m
2 stops
LHR06:40London Heathrow
£581
Find similar
United Airlines
10 Dec
LHR07:30London Heathrow
16h 59m
2 stops
TYS19:29Knoxville McGhee Tyson
22 Jan
TYS19:20Knoxville McGhee Tyson
10h 30m
1 stop
LHR10:50London Heathrow
£585
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
10 Dec
LHR12:35London Heathrow
14h 05m
1 stop
TYS21:40Knoxville McGhee Tyson
22 Jan
TYS07:44Knoxville McGhee Tyson
17h 51m
1 stop
LHR06:35London Heathrow
£590
Find similar
British Airways
3 Dec
LHR06:45London Heathrow
19h 15m
2 stops
TYS21:00Knoxville McGhee Tyson
6 Dec
TYS17:45Knoxville McGhee Tyson
32h 10m
1 stop
LHR06:55London Heathrow
£636
Find similar
British Airways
2 Dec
LHR14:45London Heathrow
33h 10m
1 stop
TYS18:55Knoxville McGhee Tyson
6 Dec
TYS17:51Knoxville McGhee Tyson
32h 29m
1 stop
LHR07:20London Heathrow
£640
Find similar

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 31 October 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

Tue 9/12

09:00-10:13

2 stops30h 13m

Knoxville McGhee Tyson

Tue 16/12

07:00-07:10

2 stops19h 10m

£577

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Wed 10/12

09:00-21:04

2 stops17h 04m

Knoxville McGhee Tyson

Thu 22/1

11:07-06:40

2 stops14h 33m

£581

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Wed 10/12

12:35-21:40

1 stop14h 05m

Knoxville McGhee Tyson

Thu 22/1

07:44-06:35

1 stop17h 51m

£590

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Tue 9/12

08:55-20:05

1 stop16h 10m

Knoxville McGhee Tyson

Tue 16/12

15:57-07:50

1 stop10h 53m

£600

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Fri 6/3

06:35-19:04

2 stops17h 29m

Knoxville McGhee Tyson

Tue 10/3

19:00-11:15

1 stop12h 15m

£614

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Fri 6/3

06:35-19:04

2 stops17h 29m

Knoxville McGhee Tyson

Tue 10/3

13:53-05:55

1 stop12h 02m

£633

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Thu 20/11

08:55-23:41

2 stops19h 46m

Knoxville McGhee Tyson

Mon 8/12

15:57-10:50

2 stops13h 53m

£635

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Wed 3/12

06:45-21:00

2 stops19h 15m

Knoxville McGhee Tyson

Sat 6/12

17:45-06:55

1 stop32h 10m

£636

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Mon 17/11

12:35-21:24

1 stop13h 49m

Knoxville McGhee Tyson

Sat 6/12

16:31-09:15

1 stop11h 44m

£641

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Thu 20/11

09:55-18:01

1 stop13h 06m

Knoxville McGhee Tyson

Mon 8/12

18:29-10:25

1 stop10h 56m

£644

Flights are sorted by cheapest return 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 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 £534. If you aren’t able to travel to Knoxville during the month of September, then flying in November is also cheap. Prices for this month can be found on momondo for an average of £541.

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

The cheapest day to depart on your flight to Knoxville is on a Monday when prices can be found for as low as £592. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around £700. These prices are subject to change though, so be sure to set up a Price Alert for flights to Knoxville.

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

Flying to Knoxville from London Heathrow Airport in the evening is the least expensive time of day to depart. momondo users have found prices as low as £577 when looking at flights departing in the evening. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are £648 on average. Flights to Knoxville from London Heathrow Airport in the morning are generally more expensive because this time of day is more convenient for travellers’ schedules.

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 £689 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 £546 on momondo.

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

You could potentially save up to 18% 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

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?

    The distance between London Heathrow and Knoxville McGhee Tyson is about 4065.6 mi. A reasonable flight in good conditions will take 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 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 £465Free CancellationRating
6.8
7,543 reviews
Search Lufthansa flights
British AirwaysPriceFrom £485Free CancellationRating
6.7
7,489 reviews
Search British Airways flights
United AirlinesPriceFrom £490Free CancellationRating
7.4
8,995 reviews
Search United Airlines flights
FinnairPriceFrom £511Free CancellationRating
7.6
1,333 reviews
Search Finnair flights
Virgin AtlanticPriceFrom £516Free CancellationRating
7.5
671 reviews
Search Virgin Atlantic flights
IberiaPriceFrom £574Free CancellationRating
7.0
3,004 reviews
Search Iberia flights
American AirlinesPriceFrom £599Free CancellationRating
7.2
11,033 reviews
Search American Airlines flights

Travelling to a place near Knoxville?

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