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Cheap flights from Knoxville to London Heathrow Airport from £249

TYS — LHR
16 Nov — 23 Nov1
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

Tue 1/1219:45 -
2 stops16h 20m
Tue 8/1208:45 -
2 stops20h 14m
Deal found 16/10£667
Wed 11/1117:40 -
2 stops19h 05m
Wed 18/1111:10 -
2 stops17h 49m
Deal found 13/10£674
Wed 11/1111:33 -
1 stop17h 52m
Wed 18/1107:35 -
2 stops21h 12m
Deal found 12/10£682
Tue 1/1217:35 -
1 stop13h 25m
Tue 8/1209:00 -
2 stops19h 59m
Deal found 16/10£683
Wed 11/1111:20 -
2 stops14h 50m
Wed 18/1109:00 -
2 stops16h 54m
Deal found 13/10£685
Sun 29/1109:45 -
1 stop20h 05m
Thu 10/1213:45 -
2 stops54h 08m
Deal found 13/10£687
Mon 23/1116:00 -
1 stop10h 50m
Tue 8/1220:25 -
2 stops26h 05m
Deal found 14/10£694
Mon 23/1111:28 -
1 stop13h 47m
Tue 8/1214:10 -
1 stop13h 43m
Deal found 14/10£700
Mon 2/1119:35 -
2 stops15h 15m
Wed 11/1111:10 -
2 stops17h 49m
Deal found 13/10£703

Find flight deals from Knoxville to Heathrow

Round-trip from

£653

One-way from

£249

Popular in

June

Cheapest in

April

Average price

£755
Lufthansa
  • Lufthansa
  • 26/1-9/2
  • 4 total stops
  • 33h 09m total
  • Knoxville to London
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United Airlines
  • United Airlines
  • 15/3-31/12
  • 2 total stops
  • 20h 10m total
  • Knoxville to London
Search Deals
Highest demand for flights based on searches. 21% potential increase in price (£179 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£28 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 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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KnoxvilleLondon

TYS Knoxville McGhee Tyson - LHR London Heathrow

TYSLHR

Knoxville McGhee Tyson

Mon 15/3

16:41-07:20

1 stop10h 39m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£249

KnoxvilleLondon

TYS Knoxville McGhee Tyson - LHR London Heathrow

TYSLHR

Knoxville McGhee Tyson

Mon 15/3

05:45-05:55

2 stops20h 10m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£249

KnoxvilleLondon

TYS Knoxville McGhee Tyson - LHR London Heathrow

TYSLHR

Knoxville McGhee Tyson

Mon 15/3

07:40-17:15

2 stops29h 35m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£254

KnoxvilleLondon

TYS Knoxville McGhee Tyson - LHR London Heathrow

TYSLHR

Knoxville McGhee Tyson

Sun 8/11

07:30-21:05

2 stops32h 35m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£346

KnoxvilleLondon

TYS Knoxville McGhee Tyson - LHR London Heathrow

TYSLHR

Knoxville McGhee Tyson

Mon 15/3

10:16-07:10

3 stops16h 54m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£433

KnoxvilleLondon

TYS Knoxville McGhee Tyson - LHR London Heathrow

TYSLHR

Knoxville McGhee Tyson

Mon 5/4

19:35-10:40

1 stop10h 05m

London Heathrow

Fri 16/4

06:50-10:00

2 stops32h 10m

£668

KnoxvilleLondon

TYS Knoxville McGhee Tyson - LHR London Heathrow

TYSLHR

Knoxville McGhee Tyson

Sun 4/4

17:20-11:35

1 stop13h 15m

London Heathrow

Fri 16/4

06:50-10:00

2 stops32h 10m

£668

KnoxvilleLondon

TYS Knoxville McGhee Tyson - LHR London Heathrow

TYSLHR

Knoxville McGhee Tyson

Tue 6/4

11:55-07:25

1 stop14h 30m

London Heathrow

Thu 15/4

11:45-23:46

2 stops17h 01m

£679

KnoxvilleLondon

TYS Knoxville McGhee Tyson - LHR London Heathrow

TYSLHR

Knoxville McGhee Tyson

Sun 4/4

12:00-07:25

2 stops14h 25m

London Heathrow

Fri 16/4

06:15-18:13

2 stops16h 58m

£688

KnoxvilleLondon

TYS Knoxville McGhee Tyson - LHR London Heathrow

TYSLHR

Knoxville McGhee Tyson

Tue 1/12

12:45-08:25

1 stop14h 40m

London Heathrow

Sat 12/12

09:00-23:59

2 stops19h 59m

£721

Flights are sorted by cheapest return flights first.

Deals found on 14/10

Showing 1-10 of 17 resultsSorted by cheapest first
1
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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 £631). Flying from Knoxville to London Heathrow Airport in June is currently the most expensive (average of £1,248). 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 typical for this route at the moment.

Knoxville to London Heathrow Airport flights typically cost between £623 and £889 in January.
The cheapest return price found within the last 5 days was £653 on Lufthansa (26 Jan–9 Feb).

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 £668, United Airlines can have you in London Heathrow Airport from Knoxville in 10h 05m. 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 £631). Flying from Knoxville to London Heathrow Airport in June is currently the most expensive (average of £1,248). 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
Milton Keynes
Luton
Slough
Gatwick
Wembley
Hayes
Ilford
Croydon
Colchester
Northampton
Eastbourne
Brentford
Southend-on-Sea
Barnet
Enfield
Southall
Watford
Stratford-upon-Avon
Kingston upon Thames

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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.

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