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Cheap flights from London Heathrow Airport to Knoxville from £354

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 20/1. 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.
British Airways Logo
11:45 - 19:08
LHR
-
TYS
12h 23m1 stop
British Airways Logo
20:44 - 12:30
TYS
-
LHR
10h 46m1 stop
£511British Airways
Tue, 3 Mar - Tue, 28 Apr
British Airways Logo
06:45 - 22:02
LHR
-
TYS
20h 17m2 stops
British Airways Logo
15:03 - 12:15
TYS
-
LHR
16h 12m1 stop
£525British Airways
Tue, 3 Mar - Thu, 30 Apr
British Airways Logo
14:10 - 21:23
LHR
-
TYS
12h 13m1 stop
British Airways Logo
20:44 - 06:55
TYS
-
LHR
29h 11m1 stop
£533British Airways
Mon, 2 Mar - Sun, 26 Apr
Multiple Airlines Logo
09:55 - 16:49
LHR
-
TYS
11h 54m1 stop
Multiple Airlines Logo
19:11 - 12:00
TYS
-
LHR
11h 49m1 stop
£535Multiple Airlines
Mon, 12 Jan - Mon, 26 Jan
Iberia Logo
06:05 - 21:28
LHR
-
TYS
20h 23m2 stops
Iberia Logo
20:23 - 17:15
TYS
-
LHR
15h 52m2 stops
£546Iberia
Tue, 3 Mar - Tue, 28 Apr
British Airways Logo
08:15 - 21:48
LHR
-
TYS
18h 33m2 stops
British Airways Logo
20:44 - 06:55
TYS
-
LHR
29h 11m1 stop
£555British Airways
Sun, 1 Mar - Sun, 26 Apr
British Airways Logo
14:10 - 21:23
LHR
-
TYS
12h 13m1 stop
British Airways Logo
18:22 - 09:05
TYS
-
LHR
9h 43m1 stop
£563British Airways
Sun, 1 Mar - Mon, 27 Apr
British Airways Logo
12:35 - 22:09
LHR
-
TYS
14h 34m1 stop
British Airways Logo
16:00 - 07:20
TYS
-
LHR
10h 20m1 stop
£564British Airways
Thu, 22 Jan - Mon, 26 Jan
Iberia Logo
19:40 - 21:28
LHR
-
TYS
30h 48m2 stops
Iberia Logo
20:23 - 10:30
TYS
-
LHR
33h 07m1 stop
£569Iberia
Mon, 2 Mar - Wed, 29 Apr
Iberia Logo
06:05 - 21:28
LHR
-
TYS
20h 23m2 stops
Iberia Logo
11:34 - 16:25
TYS
-
LHR
23h 51m2 stops
£571Iberia
Tue, 3 Mar - Wed, 29 Apr

British Airways flights from London Heathrow Airport to Knoxville

Our best British Airways deals on London Heathrow Airport to Knoxville flight tickets
British Airways
3 Mar
LHR11:45London Heathrow
12h 23m
1 stop
TYS19:08Knoxville McGhee Tyson
28 Apr
TYS20:44Knoxville McGhee Tyson
10h 46m
1 stop
LHR12:30London Heathrow
£511
Find similar
British Airways
3 Mar
LHR08:15London Heathrow
18h 47m
2 stops
TYS22:02Knoxville McGhee Tyson
26 Apr
TYS20:44Knoxville McGhee Tyson
31h 21m
1 stop
LHR09:05London Heathrow
£525
Find similar
British Airways
2 Mar
LHR09:55London Heathrow
18h 59m
1 stop
TYS23:54Knoxville McGhee Tyson
28 Apr
TYS18:22Knoxville McGhee Tyson
9h 43m
1 stop
LHR09:05London Heathrow
£533
Find similar

Iberia flights from London Heathrow Airport to Knoxville

Our best Iberia deals on London Heathrow Airport to Knoxville flight tickets
Iberia
3 Mar
LHR06:05London Heathrow
20h 23m
2 stops
TYS21:28Knoxville McGhee Tyson
28 Apr
TYS20:23Knoxville McGhee Tyson
15h 52m
2 stops
LHR17:15London Heathrow
£546
Find similar
Iberia
2 Mar
LHR18:45London Heathrow
31h 43m
2 stops
TYS21:28Knoxville McGhee Tyson
28 Apr
TYS20:23Knoxville McGhee Tyson
33h 07m
1 stop
LHR10:30London Heathrow
£569
Find similar
Iberia
3 Mar
LHR06:05London Heathrow
20h 23m
2 stops
TYS21:28Knoxville McGhee Tyson
29 Apr
TYS11:34Knoxville McGhee Tyson
23h 51m
2 stops
LHR16:25London Heathrow
£571
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 18 December 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 3/3

11:45-19:08

1 stop12h 23m

Knoxville McGhee Tyson

Tue 28/4

20:44-12:30

1 stop10h 46m

£511

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Tue 3/3

06:45-22:02

2 stops20h 17m

Knoxville McGhee Tyson

Thu 30/4

15:03-12:15

1 stop16h 12m

£525

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Mon 2/3

14:10-21:23

1 stop12h 13m

Knoxville McGhee Tyson

Sun 26/4

20:44-06:55

1 stop29h 11m

£533

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Mon 12/1

09:55-16:49

1 stop11h 54m

Knoxville McGhee Tyson

Mon 26/1

19:11-12:00

1 stop11h 49m

£535

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Tue 3/3

06:05-21:28

2 stops20h 23m

Knoxville McGhee Tyson

Tue 28/4

20:23-17:15

2 stops15h 52m

£546

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Sun 1/3

08:15-21:48

2 stops18h 33m

Knoxville McGhee Tyson

Sun 26/4

20:44-06:55

1 stop29h 11m

£555

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Sun 1/3

14:10-21:23

1 stop12h 13m

Knoxville McGhee Tyson

Mon 27/4

18:22-09:05

1 stop9h 43m

£563

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Thu 22/1

12:35-22:09

1 stop14h 34m

Knoxville McGhee Tyson

Mon 26/1

16:00-07:20

1 stop10h 20m

£564

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Mon 2/3

19:40-21:28

2 stops30h 48m

Knoxville McGhee Tyson

Wed 29/4

20:23-10:30

1 stop33h 07m

£569

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Tue 3/3

06:05-21:28

2 stops20h 23m

Knoxville McGhee Tyson

Wed 29/4

11:34-16:25

2 stops23h 51m

£571

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 £519. 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 £563.

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 £584. 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 £689. 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 £568 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 £638 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 £691 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 £529 on momondo.

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

You could potentially save up to 39% 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

12h 23m

Direct flights

None
The fastest flight from London Heathrow Airport to Knoxville takes 12h 23m
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 12h 23m.

  • 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 £458Free CancellationRating
6.8
7,635 reviews
Search Lufthansa flights
United AirlinesPriceFrom £468Free CancellationRating
7.4
9,091 reviews
Search United Airlines flights
British AirwaysPriceFrom £478Free CancellationRating
6.7
7,585 reviews
Search British Airways flights
FinnairPriceFrom £500Free CancellationRating
7.6
1,338 reviews
Search Finnair flights
Virgin AtlanticPriceFrom £509Free CancellationRating
7.5
675 reviews
Search Virgin Atlantic flights
American AirlinesPriceFrom £590Free CancellationRating
7.2
11,054 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
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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