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Cheap flights from London Heathrow Airport to Knoxville from £335

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
15 Apr — 22 Apr1
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 10 April 2025.

Round-trip from

£584

One-way from

£335

Popular in

August

Cheapest in

November

Average price

£661
British Airways
  • British Airways
  • 1/5-8/5
  • 3 total stops
  • 29h 19m total
  • London to Knoxville
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16/9
  • 16/9
  • 2 total stops
  • 31h 00m total
  • London to Knoxville
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£77 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£16 potential savings vs. average return price).
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Average for round-trip flights in April 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 10 April 2025.

Thu 1/507:50LHR - TYS
2 stops17h 59mBritish Airways
Thu 8/515:00TYS - LHR
1 stop11h 20mBritish Airways
Deal found 9/4£584
Thu 1/508:55LHR - TYS
3 stops32h 05mMultiple Airlines
Thu 8/507:15TYS - LHR
2 stops32h 05mMultiple Airlines
Deal found 9/4£589
Thu 1/506:30LHR - TYS
2 stops14h 44mDelta
Thu 8/510:25TYS - LHR
2 stops15h 00mDelta
Deal found 9/4£591
Tue 15/709:20LHR - TYS
1 stop19h 27mVirgin Atlantic
Tue 29/716:00TYS - LHR
1 stop16h 30mVirgin Atlantic
Deal found 9/4£660
Fri 25/416:40LHR - TYS
2 stops28h 11mUnited Airlines
Thu 10/719:35TYS - LHR
1 stop10h 05mUnited Airlines
Deal found 9/4£661
Tue 15/708:30LHR - TYS
2 stops19h 05mLufthansa
Tue 29/710:55TYS - LHR
2 stops14h 00mLufthansa
Deal found 9/4£696
Fri 25/407:05LHR - TYS
3 stops21h 43mScandinavian Airlines
Thu 10/716:00TYS - LHR
2 stops21h 30mScandinavian Airlines
Deal found 9/4£1,061
Sat 24/521:00LHR - TYS
3 stops46h 33mEthiopian Air
Sat 31/505:45TYS - LHR
3 stops54h 35mEthiopian Air
Deal found 9/4£3,178
Mon 5/509:20LHR - TYS
1 stop14h 19mKLM
Sat 10/513:00TYS - LHR
1 stop14h 55mKLM
Deal found 9/4£7,262

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 10 April 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

Thu 1/5

07:50-20:49

2 stops17h 59m

Knoxville McGhee Tyson

Thu 8/5

15:00-07:20

1 stop11h 20m

£584

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Thu 1/5

08:55-12:00

3 stops32h 05m

Knoxville McGhee Tyson

Thu 8/5

07:15-20:20

2 stops32h 05m

£589

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Thu 1/5

06:30-16:14

2 stops14h 44m

Knoxville McGhee Tyson

Thu 8/5

10:25-06:25

2 stops15h 00m

£591

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Tue 15/7

09:20-23:47

1 stop19h 27m

Knoxville McGhee Tyson

Tue 29/7

16:00-13:30

1 stop16h 30m

£660

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Fri 25/4

16:40-15:51

2 stops28h 11m

Knoxville McGhee Tyson

Thu 10/7

19:35-10:40

1 stop10h 05m

£661

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Tue 15/7

08:30-22:35

2 stops19h 05m

Knoxville McGhee Tyson

Tue 29/7

10:55-05:55

2 stops14h 00m

£696

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Fri 25/4

07:05-23:48

3 stops21h 43m

Knoxville McGhee Tyson

Thu 10/7

16:00-18:30

2 stops21h 30m

£1,061

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Sat 24/5

21:00-14:33

3 stops46h 33m

Knoxville McGhee Tyson

Sat 31/5

05:45-17:20

3 stops54h 35m

£3,178

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Mon 5/5

09:20-18:39

1 stop14h 19m

Knoxville McGhee Tyson

Sat 10/5

13:00-08:55

1 stop14h 55m

£7,262

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Tue 16/9

09:55-11:55

2 stops31h 00m

£335

Flights are sorted by cheapest return flights first.

Deals found on 9/4

Showing 1-10 of 14 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 4 April 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 10 April 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 10 April 2025.
Delta
8.0
Very Good
7,907 reviews
Check prices

Overall

8.0

Comfort

8.0

Boarding

8.2

Crew

8.5

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very Good
7,907 reviews
Delta
8.0
Very Good
7,907 reviews
Check prices

Overall

8.0

Comfort

8.0

Boarding

8.2

Crew

8.5

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
KLM
7.8
Good
1,321 reviews
Delta
8.0
Very Good
7,907 reviews
Check prices

Overall

8.0

Comfort

8.0

Boarding

8.2

Crew

8.5

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,636 reviews
Delta
8.0
Very Good
7,907 reviews
Check prices

Overall

8.0

Comfort

8.0

Boarding

8.2

Crew

8.5

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Virgin Atlantic
7.4
Good
641 reviews
Delta
8.0
Very Good
7,907 reviews
Check prices

Overall

8.0

Comfort

8.0

Boarding

8.2

Crew

8.5

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Scandinavian Airlines
7.3
Good
1,331 reviews
Delta
8.0
Very Good
7,907 reviews
Check prices

Overall

8.0

Comfort

8.0

Boarding

8.2

Crew

8.5

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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 £584, British Airways will fly you from London Heathrow Airport to Knoxville and back. In addition to British Airways, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Delta and Virgin Atlantic - these airlines can fly you to your destination from £591 and £660, respectively. These flights start at 16% 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 (£434), Lufthansa (£619), and British Airways (£642).

  • 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 10 April 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest£520Average£650FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
British AirwaysCheapest£541Average£681FlexibilityNo cancel feeOn-time70%
Search British Airways flights
FinnairCheapest£544Average£662FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Virgin AtlanticCheapest£554Average£666FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
United AirlinesCheapest£566Average£693FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
IberiaCheapest£591Average£1,031FlexibilityNo cancel feeOn-time77%
Search Iberia flights

Fly with Cheapflights

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

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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!

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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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