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Cheap flights from London Heathrow Airport to Knoxville from £408

LHR — TYS
29 Sep — 6 Oct1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Heathrow to Knoxville

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to Knoxville

Tue 13/1006:40 -
2 stops20h 42m
Tue 20/1014:38 -
2 stops22h 52m
Deal found 29/8£580
Sun 22/1109:30 -
2 stops19h 29m
Tue 1/1213:05 -
1 stop16h 20m
Deal found 26/8£628
Wed 11/1109:00 -
2 stops16h 54m
Fri 20/1119:35 -
1 stop30h 05m
Deal found 26/8£638
Wed 28/1010:25 -
1 stop14h 30m
Wed 11/1113:56 -
1 stop12h 59m
Deal found 26/8£640
Thu 8/1009:30 -
2 stops19h 29m
Thu 15/1013:55 -
1 stop13h 35m
Deal found 26/8£641
Fri 9/1006:50 -
2 stops15h 18m
Fri 16/1016:16 -
1 stop13h 09m
Deal found 25/8£643
Thu 10/911:05 -
1 stop34h 53m
Thu 17/913:10 -
1 stop12h 45m
Deal found 26/8£647
Thu 8/1006:55 -
2 stops22h 04m
Thu 15/1010:42 -
2 stops15h 13m
Deal found 26/8£649

Find flight deals from Heathrow to Knoxville

Round-trip from

£580

One-way from

£408

Popular in

December

Cheapest in

March

Average price

£831
Scandinavian Airlines
  • Scandinavian Airlines
  • 13/10-20/10
  • 4 total stops
  • 43h 34m total
  • London to Knoxville
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15/12
  • 15/12
  • 2 total stops
  • 43h 38m total
  • London to Knoxville
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (£68 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£20 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

Cheapflights Fare Finder

 
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 London Heathrow - TYS Knoxville McGhee Tyson

LHRTYS

London Heathrow

Thu 28/1

06:40-23:46

2 stops22h 06m

Knoxville McGhee Tyson

Mon 1/2

17:57-09:20

2 stops34h 23m

£601

LondonKnoxville

LHR London Heathrow - TYS Knoxville McGhee Tyson

LHRTYS

London Heathrow

Wed 28/10

06:35-20:55

2 stops18h 20m

Knoxville McGhee Tyson

Wed 11/11

17:40-12:00

1 stop13h 20m

£642
Fastest return journey

LondonKnoxville

LHR London Heathrow - TYS Knoxville McGhee Tyson

LHRTYS

London Heathrow

Fri 9/10

06:50-17:08

2 stops15h 18m

Knoxville McGhee Tyson

Fri 16/10

16:16-10:25

1 stop13h 09m

£643

LondonKnoxville

LHR London Heathrow - TYS Knoxville McGhee Tyson

LHRTYS

London Heathrow

Thu 8/10

06:55-23:59

2 stops22h 04m

Knoxville McGhee Tyson

Thu 15/10

10:42-06:55

2 stops15h 13m

£649

LondonKnoxville

LHR London Heathrow - TYS Knoxville McGhee Tyson

LHRTYS

London Heathrow

Fri 11/9

08:40-22:49

2 stops19h 09m

Knoxville McGhee Tyson

Wed 23/9

10:45-08:30

1 stop16h 45m

£652

LondonKnoxville

LHR London Heathrow - TYS Knoxville McGhee Tyson

LHRTYS

London Heathrow

Wed 28/10

07:30-19:36

2 stops16h 06m

Knoxville McGhee Tyson

Wed 11/11

09:45-05:55

2 stops15h 10m

£668

LondonKnoxville

LHR London Heathrow - TYS Knoxville McGhee Tyson

LHRTYS

London Heathrow

Sun 22/11

12:50-23:59

2 stops16h 09m

Knoxville McGhee Tyson

Thu 26/11

10:43-08:25

2 stops16h 42m

£681

LondonKnoxville

LHR London Heathrow - TYS Knoxville McGhee Tyson

LHRTYS

London Heathrow

Sun 22/11

19:30-20:54

2 stops30h 24m

Knoxville McGhee Tyson

Tue 1/12

13:05-08:25

1 stop14h 20m

£686
Cheapest one-way

LondonKnoxville

LHR London Heathrow - TYS Knoxville McGhee Tyson

LHRTYS

London Heathrow

Mon 14/12

12:15-11:35

3 stops52h 20m

£426

LondonKnoxville

LHR London Heathrow - TYS Knoxville McGhee Tyson

LHRTYS

London Heathrow

Mon 12/10

19:00-13:01

3 stops47h 01m

£470

Flights are sorted by cheapest return flights first.

Deals found on 26/8

Showing 1-10 of 18 resultsSorted by cheapest first
1
2

Best time to book a flight from Heathrow to Knoxville

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

Cheapflights Insights

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

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

Currently, March is the cheapest month in which you can book a flight from London Heathrow Airport to Knoxville (average of £589). Flying from London Heathrow Airport to Knoxville in December is currently the most expensive (average of £1,044). 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 London Heathrow Airport to Knoxville?

Airfare is typical for this route at the moment.

London Heathrow Airport to Knoxville flights typically cost between £547 and £706 in October.
The cheapest return price found within the last 5 days was £580 on Scandinavian Airlines (13 Oct–20 Oct).

Reviews of airlines servicing Knoxville

Read reviews from past customers who have flown with United Airlines,Virgin Atlantic, andLufthansa from London Heathrow Airport to Knoxville. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
10,138 reviews
Check prices

Entertainment

7.1

Food

6.7

Crew

8.1

Overall

7.4

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Chris,Aug 2026

MIA - ORD

Had to go through TSA again, already purchased bottle drink. TSA would not let through, United changed gates last minute. This experience bad for everyone. Staff rude, not our fault. Staff from Chicago to Wichita excellent!
United Airlines
7.4
Good
10,138 reviews
United Airlines
7.4
Good
10,138 reviews
Check prices

Entertainment

7.1

Food

6.7

Crew

8.1

Overall

7.4

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Chris,Aug 2026

MIA - ORD

Had to go through TSA again, already purchased bottle drink. TSA would not let through, United changed gates last minute. This experience bad for everyone. Staff rude, not our fault. Staff from Chicago to Wichita excellent!
Virgin Atlantic
7.4
Good
695 reviews
United Airlines
7.4
Good
10,138 reviews
Check prices

Entertainment

7.1

Food

6.7

Crew

8.1

Overall

7.4

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Chris,Aug 2026

MIA - ORD

Had to go through TSA again, already purchased bottle drink. TSA would not let through, United changed gates last minute. This experience bad for everyone. Staff rude, not our fault. Staff from Chicago to Wichita excellent!
Lufthansa
6.8
Okay
8,229 reviews
United Airlines
7.4
Good
10,138 reviews
Check prices

Entertainment

7.1

Food

6.7

Crew

8.1

Overall

7.4

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Chris,Aug 2026

MIA - ORD

Had to go through TSA again, already purchased bottle drink. TSA would not let through, United changed gates last minute. This experience bad for everyone. Staff rude, not our fault. Staff from Chicago to Wichita excellent!
British Airways
6.7
Okay
8,195 reviews
United Airlines
7.4
Good
10,138 reviews
Check prices

Entertainment

7.1

Food

6.7

Crew

8.1

Overall

7.4

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Chris,Aug 2026

MIA - ORD

Had to go through TSA again, already purchased bottle drink. TSA would not let through, United changed gates last minute. This experience bad for everyone. Staff rude, not our fault. Staff from Chicago to Wichita excellent!

Related info for your journey

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

    If you book a flight to Knoxville from London Heathrow, you will be flying to 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 London Heathrow to McGhee Tyson per day from 4 different airlines.

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

    Scandinavian Airlines, Lufthansa, and United Airlines can get you from London Heathrow Airport to Knoxville in just under 15h 18m. Your travel time can differ by up to 6h 48m. The distance from London Heathrow Airport to Knoxville is about 4076 mi. Both multi-stop and direct flights can be found to your destination and back.

  • What are the cheapest airlines flying from London Heathrow Airport to Knoxville round-trip?

    Currently priced at £367, Virgin Atlantic will fly you from London Heathrow Airport to Knoxville and back. In addition to Virgin Atlantic, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Lufthansa and United Airlines - these airlines can fly you to your destination from £453 and £457, respectively. These flights start at 51% lower than the current average price 3 months from now.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Heathrow to Knoxville 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 London Heathrow Airport to Knoxville?

    Currently, March is the cheapest month in which you can book a flight from London Heathrow Airport to Knoxville (average of £589). Flying from London Heathrow Airport to Knoxville in December is currently the most expensive (average of £1,044). 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 Knoxville?

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

Browse thousands of different options on Cheapflights for your next trip

Top 4 airlines flying from Heathrow to Knoxville

AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest£367Average£824FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
LufthansaCheapest£453Average£794FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
United AirlinesCheapest£457Average£647FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
British AirwaysCheapest£474Average£786FlexibilityNo cancel feeOn-time70%
Search British Airways flights

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Cheapflights helps you search for flights from Heathrow to Knoxville via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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

Cheapflights helps you find that perfect flight to Knoxville from Heathrow by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

Yes! Cheapflights helps users easily find flights from Heathrow to Knoxville with no change fees.

Can Cheapflights notify me if prices for flights from Heathrow to Knoxville become cheaper?

Yes, Cheapflights offers price alerts on Heathrow to Knoxville flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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