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Cheap flights from Knoxville to London Heathrow Airport from £281

TYS — LHR
15 Oct — 22 Oct1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Knoxville to Heathrow

Enter your travel dates to find the best prices.

Cheapest flights from Knoxville to Heathrow

Mon 21/912:23 -
1 stop13h 02m
Tue 6/1011:45 -
2 stops15h 37m
Deal found 13/9£559
Mon 2/1107:26 -
1 stop18h 39m
Wed 11/1108:55 -
2 stops18h 17m
Deal found 11/9£562
Wed 18/1116:00 -
2 stops12h 25m
Thu 26/1106:30 -
2 stops19h 47m
Deal found 12/9£565
Tue 13/1008:35 -
1 stop16h 50m
Fri 23/1011:15 -
1 stop15h 53m
Deal found 11/9£567
Tue 29/911:46 -
2 stops14h 29m
Tue 6/1010:45 -
1 stop15h 52m
Deal found 14/9£570
Wed 11/1112:34 -
1 stop14h 16m
Tue 24/1106:30 -
2 stops17h 19m
Deal found 10/9£590
Wed 11/1112:34 -
2 stops14h 31m
Wed 25/1111:45 -
2 stops14h 44m
Deal found 10/9£593
Mon 12/1010:29 -
1 stop19h 51m
Thu 22/1011:15 -
1 stop15h 53m
Deal found 10/9£595
Mon 12/1018:23 -
2 stops13h 42m
Fri 23/1011:15 -
1 stop15h 53m
Deal found 10/9£599
Mon 21/917:28 -
2 stops14h 37m
Mon 28/909:55 -
2 stops15h 20m
Deal found 14/9£602
Sun 8/1110:29 -
1 stop16h 21m
Sun 15/1116:00 -
1 stop12h 59m
Deal found 14/9£604
Sun 11/1014:38 -
2 stops14h 42m
Sun 18/1011:15 -
1 stop17h 44m
Deal found 13/9£607

Find flight deals from Knoxville to Heathrow

Round-trip from

£562

One-way from

£281

Popular in

June

Cheapest in

April

Average price

£783
Delta
  • Delta
  • 2/11-11/11
  • 3 total stops
  • 36h 56m total
  • Knoxville to London
Search Deals
1/11-31/12
  • 1/11-31/12
  • 2 total stops
  • 22h 40m total
  • Knoxville to London
Search Deals
Highest demand for flights based on searches. 22% potential increase in price (£183 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£26 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2026
Search Deals

Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Knoxville to London Heathrow Airport that are best for you.

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Price

Cheapest return flight

KnoxvilleLondon

TYS Knoxville McGhee Tyson - LHR London Heathrow

TYSLHR

Knoxville McGhee Tyson

Sun 1/11

06:00-09:40

2 stops22h 40m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£281

KnoxvilleLondon

TYS Knoxville McGhee Tyson - LHR London Heathrow

TYSLHR

Knoxville McGhee Tyson

Thu 31/12

06:30-07:40

1 stop20h 10m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£295

KnoxvilleLondon

TYS Knoxville McGhee Tyson - LHR London Heathrow

TYSLHR

Knoxville McGhee Tyson

Fri 4/12

13:58-12:50

3 stops41h 52m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£316
Fastest return journey

KnoxvilleLondon

TYS Knoxville McGhee Tyson - LHR London Heathrow

TYSLHR

Knoxville McGhee Tyson

Sun 1/11

14:38-06:25

1 stop10h 47m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£343

KnoxvilleLondon

TYS Knoxville McGhee Tyson - LHR London Heathrow

TYSLHR

Knoxville McGhee Tyson

Thu 31/12

08:20-10:50

3 stops45h 30m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£371

KnoxvilleLondon

TYS Knoxville McGhee Tyson - LHR London Heathrow

TYSLHR

Knoxville McGhee Tyson

Fri 4/12

16:01-11:40

1 stop14h 39m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£414

KnoxvilleLondon

TYS Knoxville McGhee Tyson - LHR London Heathrow

TYSLHR

Knoxville McGhee Tyson

Tue 29/9

14:08-06:25

1 stop11h 17m

London Heathrow

Tue 6/10

10:45-18:24

1 stop12h 39m

£567

KnoxvilleLondon

TYS Knoxville McGhee Tyson - LHR London Heathrow

TYSLHR

Knoxville McGhee Tyson

Tue 13/10

08:35-06:25

1 stop16h 50m

London Heathrow

Fri 23/10

11:15-22:08

1 stop15h 53m

£567

KnoxvilleLondon

TYS Knoxville McGhee Tyson - LHR London Heathrow

TYSLHR

Knoxville McGhee Tyson

Tue 29/9

18:13-11:20

1 stop12h 07m

London Heathrow

Tue 6/10

08:20-20:08

2 stops16h 48m

£570

KnoxvilleLondon

TYS Knoxville McGhee Tyson - LHR London Heathrow

TYSLHR

Knoxville McGhee Tyson

Tue 13/10

18:23-11:20

1 stop11h 57m

London Heathrow

Thu 22/10

11:15-18:47

1 stop12h 32m

£595

Flights are sorted by cheapest return flights first.

Deals found on 12/9

Showing 1-10 of 15 resultsSorted by cheapest first
1
2

Best time to book a flight from Knoxville to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Knoxville with our price prediction graph.
Estimated return price

Cheapflights Insights

Everything you need to know about your flight from Knoxville to London Heathrow Airport

What is the cheapest month to book a flight from Knoxville to London Heathrow Airport?

Currently, April is the cheapest month in which you can book a flight from Knoxville to London Heathrow Airport (average of £623). Flying from Knoxville to London Heathrow Airport in June is currently the most expensive (average of £1,231). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost for a return flight from Knoxville to London Heathrow Airport?

Airfare is below average for this route at the moment.

Knoxville to London Heathrow Airport flights typically cost between £691 and £926 in November.
The cheapest return price found within the last 5 days was £562 on Delta (2 Nov–11 Nov).

Related info for your journey

  • What airport do you fly from for flights from Knoxville to London Heathrow?

    If you book a flight to London Heathrow from Knoxville, you will be flying from McGhee Tyson, which is the city’s only airport. Knoxville McGhee Tyson (TYS) is located 11.3 mi from the center of Knoxville. There are 0 flights from McGhee Tyson to London Heathrow per day from 0 different airlines.

  • How long is the flight from Knoxville to London Heathrow Airport?

    For as low as £567, Virgin Atlantic can have you in London Heathrow Airport from Knoxville in 11h 17m. There are 4076 mi between Knoxville and London Heathrow Airport. Both multi-stop and direct flights can be found to your destination and back.

  • Can I find deals for flights from Knoxville to Heathrow that include hotel bookings?

    Yes. In addition to deals on Knoxville to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Knoxville to Heathrow?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Knoxville to Heathrow.

  • Can I find deals for business class flights from Knoxville to Heathrow?

    Yes. Cheapflights offers flight deals from Knoxville to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Knoxville to London Heathrow Airport?

    Currently, April is the cheapest month in which you can book a flight from Knoxville to London Heathrow Airport (average of £623). Flying from Knoxville to London Heathrow Airport in June is currently the most expensive (average of £1,231). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Hounslow
Luton
Milton Keynes
Gatwick
Wembley
Slough
Ilford
Hayes
Northampton
Croydon
Colchester
Eastbourne
Brentford
Enfield
Southend-on-Sea
Barnet
Southall
Watford
Swindon
Kingston upon Thames

Browse thousands of different options on Cheapflights for your next trip

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Deals for Knoxville to Heathrow flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Knoxville to Heathrow?

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Can Cheapflights find flights from Knoxville to Heathrow with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Knoxville to Heathrow, users can toggle the no change fees filter when performing a flight search.

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