Find flights
When to book
Airlines
FAQs

Cheap flights from London Heathrow Airport to Knoxville from £469

LHR — TYS
19 Oct — 26 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 17/1118:40 -
2 stops32h 32m
Wed 2/1216:01 -
2 stops18h 59m
Deal found 17/9£625
Sat 3/1017:00 -
2 stops35h 55m
Sun 11/1014:38 -
2 stops26h 02m
Deal found 15/9£635
Tue 17/1111:30 -
2 stops17h 29m
Wed 2/1219:45 -
1 stop10h 05m
Deal found 17/9£675
Mon 2/1109:00 -
2 stops19h 59m
Mon 9/1111:20 -
1 stop16h 05m
Deal found 18/9£682
Tue 3/1109:30 -
2 stops19h 29m
Tue 10/1119:35 -
1 stop10h 15m
Deal found 15/9£683
Sun 1/1113:45 -
2 stops39h 14m
Sun 8/1117:40 -
1 stop31h 15m
Deal found 17/9£686
Mon 2/1120:25 -
2 stops27h 49m
Mon 16/1116:00 -
1 stop14h 40m
Deal found 17/9£688

Find flight deals from Heathrow to Knoxville

Round-trip from

£624

One-way from

£469

Popular in

December

Cheapest in

March

Average price

£715
Scandinavian Airlines
  • Scandinavian Airlines
  • 28/1-1/2
  • 4 total stops
  • 56h 29m total
  • London to Knoxville
Search Deals
United Airlines
  • United Airlines
  • 1/11-31/12
  • 2 total stops
  • 34h 54m total
  • London to Knoxville
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£73 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£23 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 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

Sun 1/11

11:05-16:59

2 stops34h 54m

Knoxville McGhee Tyson

Wed 31/12

00:00-06:00

Nonstop0h 00m

£469

LondonKnoxville

LHR London Heathrow - TYS Knoxville McGhee Tyson

LHRTYS

London Heathrow

Wed 21/10

13:05-11:29

2 stops27h 24m

Knoxville McGhee Tyson

Wed 31/12

00:00-06:00

Nonstop0h 00m

£480
Fastest return journey

LondonKnoxville

LHR London Heathrow - TYS Knoxville McGhee Tyson

LHRTYS

London Heathrow

Sun 1/11

16:20-23:59

1 stop12h 39m

Knoxville McGhee Tyson

Wed 31/12

00:00-06:00

Nonstop0h 00m

£514

LondonKnoxville

LHR London Heathrow - TYS Knoxville McGhee Tyson

LHRTYS

London Heathrow

Wed 23/9

08:50-19:43

2 stops15h 53m

Knoxville McGhee Tyson

Wed 31/12

00:00-06:00

Nonstop0h 00m

£564

LondonKnoxville

LHR London Heathrow - TYS Knoxville McGhee Tyson

LHRTYS

London Heathrow

Wed 23/9

06:00-23:59

3 stops22h 59m

Knoxville McGhee Tyson

Wed 31/12

00:00-06:00

Nonstop0h 00m

£639

LondonKnoxville

LHR London Heathrow - TYS Knoxville McGhee Tyson

LHRTYS

London Heathrow

Wed 21/10

12:15-23:59

1 stop16h 44m

Knoxville McGhee Tyson

Wed 31/12

00:00-06:00

Nonstop0h 00m

£649

LondonKnoxville

LHR London Heathrow - TYS Knoxville McGhee Tyson

LHRTYS

London Heathrow

Mon 2/11

09:00-23:59

2 stops19h 59m

Knoxville McGhee Tyson

Mon 9/11

11:20-08:25

1 stop16h 05m

£682

LondonKnoxville

LHR London Heathrow - TYS Knoxville McGhee Tyson

LHRTYS

London Heathrow

Tue 3/11

09:00-20:54

2 stops16h 54m

Knoxville McGhee Tyson

Tue 10/11

13:56-09:10

2 stops14h 14m

£688

LondonKnoxville

LHR London Heathrow - TYS Knoxville McGhee Tyson

LHRTYS

London Heathrow

Mon 5/10

08:40-20:49

2 stops17h 09m

Knoxville McGhee Tyson

Mon 12/10

13:35-10:40

1 stop16h 05m

£702

LondonKnoxville

LHR London Heathrow - TYS Knoxville McGhee Tyson

LHRTYS

London Heathrow

Tue 17/11

09:30-19:36

2 stops15h 06m

Knoxville McGhee Tyson

Wed 2/12

10:57-06:40

2 stops14h 43m

£702

Flights are sorted by cheapest return flights first.

Deals found on 16/9

Showing 1-10 of 17 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 £596). Flying from London Heathrow Airport to Knoxville in December is currently the most expensive (average of £1,090). 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 below average for this route at the moment.

London Heathrow Airport to Knoxville flights typically cost between £638 and £842 in January.
The cheapest return price found within the last 5 days was £624 on Scandinavian Airlines (28 Jan–1 Feb).

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
10,229 reviews
Check prices

Comfort

7.3

Food

6.7

Crew

8.1

Entertainment

7.1

Boarding

7.7

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Asha,Sept 2026

LGA - IAH

The flight was on time and boardi g was very organized and timely. Snacks are awful and having one little glass of juice was terrible. Fortunately, I had my water to keep me hydrated.
United Airlines
7.4
Good
10,229 reviews
United Airlines
7.4
Good
10,229 reviews
Check prices

Comfort

7.3

Food

6.7

Crew

8.1

Entertainment

7.1

Boarding

7.7

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Asha,Sept 2026

LGA - IAH

The flight was on time and boardi g was very organized and timely. Snacks are awful and having one little glass of juice was terrible. Fortunately, I had my water to keep me hydrated.
Virgin Atlantic
7.4
Good
694 reviews
United Airlines
7.4
Good
10,229 reviews
Check prices

Comfort

7.3

Food

6.7

Crew

8.1

Entertainment

7.1

Boarding

7.7

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Asha,Sept 2026

LGA - IAH

The flight was on time and boardi g was very organized and timely. Snacks are awful and having one little glass of juice was terrible. Fortunately, I had my water to keep me hydrated.
Lufthansa
6.8
Okay
8,236 reviews
United Airlines
7.4
Good
10,229 reviews
Check prices

Comfort

7.3

Food

6.7

Crew

8.1

Entertainment

7.1

Boarding

7.7

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Asha,Sept 2026

LGA - IAH

The flight was on time and boardi g was very organized and timely. Snacks are awful and having one little glass of juice was terrible. Fortunately, I had my water to keep me hydrated.
British Airways
6.7
Okay
8,231 reviews
United Airlines
7.4
Good
10,229 reviews
Check prices

Comfort

7.3

Food

6.7

Crew

8.1

Entertainment

7.1

Boarding

7.7

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Asha,Sept 2026

LGA - IAH

The flight was on time and boardi g was very organized and timely. Snacks are awful and having one little glass of juice was terrible. Fortunately, I had my water to keep me hydrated.

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?

    United Airlines can get you from London Heathrow Airport to Knoxville in just under 19h 59m. Your travel time can differ by up to . The distance from London Heathrow Airport to Knoxville is about 4076 mi.

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

    Currently priced at £371, 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 £458 and £462, respectively. These flights start at 52% 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 £596). Flying from London Heathrow Airport to Knoxville in December is currently the most expensive (average of £1,090). 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£371Average£834FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
LufthansaCheapest£458Average£804FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
United AirlinesCheapest£462Average£655FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
British AirwaysCheapest£506Average£799FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

How does Cheapflights help users find flights from Heathrow to Knoxville?

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.