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Cheap flights from London Heathrow Airport to Knoxville from £450

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 16/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — TYS
18 Jun — 25 Jun1
1 adult

Cheapflights Tip: The best prices from London Heathrow to Knoxville McGhee Tyson are usually found in November or March, booked 80 days in advance, depart on a Monday or Wednesday and return on a Tuesday

Cheap flight deals from Heathrow to Knoxville

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Knoxville (TYS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 13 June 2025.

Round-trip from

£601

One-way from

£450

Popular in

August

Cheapest in

November

Average price

£690
Virgin Atlantic
  • Virgin Atlantic
  • 11/10-13/10
  • 3 total stops
  • 42h 33m total
  • London to Knoxville
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Aer Lingus
  • Aer Lingus
  • 16/9
  • 2 total stops
  • 18h 54m total
  • London to Knoxville
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Highest demand for flights based on searches. 12% potential increase in price (£71 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£14 potential savings vs. average return price).
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Average for round-trip flights in June 2025
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Find flight deals from Heathrow to Knoxville

Cheapest flights from Heathrow to Knoxville
Explore the most affordable flight options available from Heathrow to Knoxville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 June 2025.

Sat 11/1011:20LHR - TYS
1 stop11h 53mVirgin Atlantic
Mon 13/1018:10TYS - LHR
2 stops30h 40mVirgin Atlantic
Deal found 12/6£601
Fri 19/911:45LHR - TYS
2 stops17h 01mDelta
Fri 26/910:05TYS - LHR
2 stops17h 45mDelta
Deal found 12/6£604
Wed 9/710:05LHR - TYS
1 stop12h 28mBritish Airways
Wed 23/710:53TYS - LHR
1 stop14h 47mBritish Airways
Deal found 12/6£631
Sat 20/914:05LHR - TYS
2 stops14h 52mMultiple Airlines
Sat 27/909:55TYS - LHR
3 stops15h 35mMultiple Airlines
Deal found 11/6£665
Sat 5/708:20LHR - TYS
1 stop18h 26mFinnair
Sun 20/714:02TYS - LHR
1 stop35h 23mFinnair
Deal found 11/6£770
Fri 11/709:30LHR - TYS
2 stops16h 27mUnited Airlines
Sat 19/713:56TYS - LHR
2 stops15h 14mUnited Airlines
Deal found 11/6£790
Sun 27/709:15LHR - TYS
1 stop11h 35mRoyal Air Maroc
Sun 3/820:22TYS - LHR
1 stop30h 18mRoyal Air Maroc
Deal found 12/6£879
Sun 27/715:00LHR - TYS
1 stop24h 28mIberia
Sun 3/818:27TYS - LHR
1 stop32h 38mIberia
Deal found 12/6£894
Mon 8/909:20LHR - TYS
1 stop14h 43mKLM
Mon 29/919:15TYS - LHR
1 stop13h 15mKLM
Deal found 12/6£954
Fri 11/706:40LHR - TYS
3 stops22h 19mScandinavian Airlines
Sat 19/717:57TYS - LHR
2 stops22h 43mScandinavian Airlines
Deal found 11/6£991
Mon 8/909:30LHR - TYS
2 stops16h 26mLufthansa
Mon 29/919:26TYS - LHR
2 stops14h 14mLufthansa
Deal found 11/6£1,312
Sat 20/921:00LHR - TYS
3 stops46h 40mEthiopian Air
Sat 27/914:01TYS - LHR
3 stops46h 19mEthiopian Air
Deal found 11/6£3,006

Cheapflights Fare Finder

Customise your flight search to find flights from Heathrow 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, Cheapflights users made 858,174 searches. Data last updated 13 June 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Knoxville that are best for you.

Fly from

Heathrow

Fly to

Knoxville

Route

Depart

Return

Price

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Sat 11/10

11:20-18:13

1 stop11h 53m

Knoxville McGhee Tyson

Mon 13/10

18:10-05:50

2 stops30h 40m

£601

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Fri 19/9

11:45-23:46

2 stops17h 01m

Knoxville McGhee Tyson

Fri 26/9

10:05-08:50

2 stops17h 45m

£604

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Wed 9/7

10:05-17:33

1 stop12h 28m

Knoxville McGhee Tyson

Wed 23/7

10:53-06:40

1 stop14h 47m

£631

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Sat 20/9

14:05-23:57

2 stops14h 52m

Knoxville McGhee Tyson

Sat 27/9

09:55-06:30

3 stops15h 35m

£665

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Sat 5/7

08:20-21:46

1 stop18h 26m

Knoxville McGhee Tyson

Sun 20/7

14:02-06:25

1 stop35h 23m

£770

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Fri 11/7

09:30-20:57

2 stops16h 27m

Knoxville McGhee Tyson

Sat 19/7

13:56-10:10

2 stops15h 14m

£790

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Sun 27/7

09:15-15:50

1 stop11h 35m

Knoxville McGhee Tyson

Sun 3/8

20:22-07:40

1 stop30h 18m

£879

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Sun 27/7

15:00-10:28

1 stop24h 28m

Knoxville McGhee Tyson

Sun 3/8

18:27-08:05

1 stop32h 38m

£894

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Mon 8/9

09:20-19:03

1 stop14h 43m

Knoxville McGhee Tyson

Mon 29/9

19:15-13:30

1 stop13h 15m

£954

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Fri 11/7

06:40-23:59

3 stops22h 19m

Knoxville McGhee Tyson

Sat 19/7

17:57-21:40

2 stops22h 43m

£991

Flights are sorted by cheapest return flights first.

Deals found on 12/6

Showing 1-10 of 16 results
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
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

How far ahead should I book a flight from London Heathrow Airport to Knoxville?

Use this chart to determine the optimal time to book a return flight from Heathrow to Knoxville. Price data was last updated on 9 June 2025.

The price you pay for your flight from London Heathrow Airport to Knoxville may vary depending on when you book. For the best chance of a lower fare, look to book 80 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, November is the cheapest month in which you can book a flight from London Heathrow Airport to Knoxville (average of £720). Flying from London Heathrow Airport to Knoxville in July is currently the most expensive (average of £1,130). 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.

What is the cheapest time of day to fly from LHR to TYS?

Find hourly flight availability from Heathrow to Knoxville. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 13 June 2025.

It’s typically best to fly out from London Heathrow Airport to Knoxville in the evening. Doing so could potentially save you 12% on the flight price compared to flying in the morning, which is usually more expensive.

What is the cheapest day to fly from London Heathrow Airport to Knoxville?

Use this chart to determine the cheapest time to fly return from Heathrow to Knoxville. Price data was last updated on 16 December 2024.

Travellers seeking maximum savings on their London Heathrow Airport to Knoxville flight should consider departing on Sunday afternoons when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Knoxville by month

Plan your trip to Knoxville by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Knoxville ranges from 68.0 - 123.0 inches per month. March is typically the wettest month, when rainfall can reach 123.0 mm. October is typically the driest time to visit Knoxville when rainfall is around 68.0 mm.

Temperature in Knoxville by month

Plan your trip to Knoxville by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Knoxville, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 26.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

Reviews of airlines servicing Knoxville

Get insights into the airlines that provide service to Knoxville. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Knoxville. Reviews last updated 13 June 2025.
Delta
8.0
Very Good
7,950 reviews
Check prices

Food

7.3

Overall

8.0

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very Good
7,950 reviews
Delta
8.0
Very Good
7,950 reviews
Check prices

Food

7.3

Overall

8.0

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,358 reviews
Delta
8.0
Very Good
7,950 reviews
Check prices

Food

7.3

Overall

8.0

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Finnair
7.6
Good
1,290 reviews
Delta
8.0
Very Good
7,950 reviews
Check prices

Food

7.3

Overall

8.0

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,790 reviews
Delta
8.0
Very Good
7,950 reviews
Check prices

Food

7.3

Overall

8.0

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Virgin Atlantic
7.4
Good
652 reviews
Delta
8.0
Very Good
7,950 reviews
Check prices

Food

7.3

Overall

8.0

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Heathrow to Knoxville. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • 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 6 different airlines.

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

    Currently priced at £601, 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 Delta and British Airways - these airlines can fly you to your destination from £604 and £631, respectively. These flights start at 9% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from London Heathrow Airport to Knoxville one-way?

    The cheapet airlines for a one-way flight from London Heathrow Airport to Knoxville are Aer Lingus (£450), British Airways (£520), and American Airlines (£2,155).

  • 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, November is the cheapest month in which you can book a flight from London Heathrow Airport to Knoxville (average of £720). Flying from London Heathrow Airport to Knoxville in July is currently the most expensive (average of £1,130). 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
Cherokee

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Top 6 airlines flying from Heathrow to Knoxville

Discover the top 6 airlines that operate flights from Heathrow to Knoxville. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 13 June 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest£489Average£632FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
British AirwaysCheapest£501Average£637FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Virgin AtlanticCheapest£505Average£628FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
FinnairCheapest£509Average£614FlexibilityNo cancel feeOn-time76%
Search Finnair flights
United AirlinesCheapest£534Average£703FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
IberiaCheapest£557Average£972FlexibilityNo cancel feeOn-time77%
Search Iberia flights

Fly with Cheapflights

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

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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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