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Cheap flights from London Heathrow Airport to Knoxville from £325

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 13/6. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — TYS
5 May — 12 May1
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 30 April 2025.

Round-trip from

£614

One-way from

£325

Popular in

August

Cheapest in

November

Average price

£623
American Airlines
  • American Airlines
  • 14/5-26/5
  • 2 total stops
  • 24h 59m total
  • London to Knoxville
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13/6
  • 13/6
  • 2 total stops
  • 26h 45m total
  • London to Knoxville
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£78 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 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 30 April 2025.

Tue 6/509:55LHR - TYS
2 stops18h 53mDelta
Tue 13/511:35TYS - LHR
2 stops16h 15mDelta
Deal found 29/4£558
Tue 6/511:05LHR - TYS
1 stop13h 20mMultiple Airlines
Tue 13/512:34TYS - LHR
1 stop17h 16mMultiple Airlines
Deal found 28/4£560
Tue 6/509:20LHR - TYS
1 stop14h 36mVirgin Atlantic
Tue 13/516:22TYS - LHR
1 stop16h 08mVirgin Atlantic
Deal found 29/4£572
Wed 14/512:15LHR - TYS
1 stop14h 52mAmerican Airlines
Mon 26/517:58TYS - LHR
1 stop10h 07mAmerican Airlines
Deal found 29/4£614
Mon 6/1008:30LHR - TYS
2 stops17h 26mUnited Airlines
Thu 6/1114:00TYS - LHR
1 stop16h 15mUnited Airlines
Deal found 29/4£638
Thu 15/512:30LHR - TYS
1 stop13h 25mBritish Airways
Sat 24/515:00TYS - LHR
1 stop16h 15mBritish Airways
Deal found 29/4£651
Sat 24/518:00LHR - TYS
2 stops21h 27mLufthansa
Wed 28/505:45TYS - LHR
1 stop20h 10mLufthansa
Deal found 29/4£658
Thu 15/509:15LHR - TYS
1 stop14h 59mFinnair
Sun 25/516:10TYS - LHR
2 stops11h 50mFinnair
Deal found 29/4£674
Wed 30/415:50LHR - TYS
2 stops56h 48mAer Lingus
Wed 7/505:05TYS - LHR
2 stops24h 15mAer Lingus
Deal found 29/4£704
Fri 13/606:40LHR - TYS
3 stops20h 31mScandinavian Airlines
Fri 20/617:57TYS - LHR
2 stops17h 03mScandinavian Airlines
Deal found 29/4£808
Wed 30/415:15LHR - TYS
1 stop29h 59mAir France
Wed 7/512:08TYS - LHR
2 stops15h 42mAir France
Deal found 29/4£831
Fri 16/514:05LHR - TYS
2 stops38h 02mAir Canada
Sat 24/507:00TYS - LHR
2 stops18h 35mAir Canada
Deal found 29/4£893

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 30 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

Wed 14/5

12:15-22:07

1 stop14h 52m

Knoxville McGhee Tyson

Mon 26/5

17:58-09:05

1 stop10h 07m

£614

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Mon 6/10

08:30-20:56

2 stops17h 26m

Knoxville McGhee Tyson

Thu 6/11

14:00-11:15

1 stop16h 15m

£638

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Thu 15/5

12:30-20:55

1 stop13h 25m

Knoxville McGhee Tyson

Sat 24/5

15:00-12:15

1 stop16h 15m

£651

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Sat 24/5

18:00-10:27

2 stops21h 27m

Knoxville McGhee Tyson

Wed 28/5

05:45-06:55

1 stop20h 10m

£658

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Wed 14/5

09:35-20:40

1 stop16h 05m

Knoxville McGhee Tyson

Sun 25/5

18:05-12:35

1 stop13h 30m

£661

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Fri 16/5

20:10-17:59

2 stops26h 49m

Knoxville McGhee Tyson

Sun 25/5

16:22-12:35

2 stops15h 13m

£673

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Thu 15/5

09:15-19:14

1 stop14h 59m

Knoxville McGhee Tyson

Sun 25/5

16:10-09:00

2 stops11h 50m

£674

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Thu 12/6

06:50-08:19

3 stops30h 29m

Knoxville McGhee Tyson

Thu 19/6

15:09-06:35

2 stops34h 26m

£685

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Fri 13/6

06:40-22:11

3 stops20h 31m

Knoxville McGhee Tyson

Fri 20/6

17:57-16:00

2 stops17h 03m

£808

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Fri 16/5

14:05-23:07

2 stops38h 02m

Knoxville McGhee Tyson

Sat 24/5

07:00-06:35

2 stops18h 35m

£893

Flights are sorted by cheapest return flights first.

Deals found on 29/4

Showing 1-10 of 17 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 25 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 30 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 30 April 2025.
Peruse reviews from past customers who have flown with Delta, Finnair and Air France from London to Knoxville to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
7,934 reviews
Check prices

Boarding

8.2

Food

7.3

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

8.0

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
7,934 reviews
Delta
8.0
Very Good
7,934 reviews
Check prices

Boarding

8.2

Food

7.3

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

8.0

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
Finnair
7.6
Good
1,275 reviews
Delta
8.0
Very Good
7,934 reviews
Check prices

Boarding

8.2

Food

7.3

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

8.0

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
Air France
7.4
Good
1,446 reviews
Delta
8.0
Very Good
7,934 reviews
Check prices

Boarding

8.2

Food

7.3

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

8.0

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
8,696 reviews
Delta
8.0
Very Good
7,934 reviews
Check prices

Boarding

8.2

Food

7.3

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

8.0

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
642 reviews
Delta
8.0
Very Good
7,934 reviews
Check prices

Boarding

8.2

Food

7.3

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

8.0

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 £614, American Airlines will fly you from London Heathrow Airport to Knoxville and back. In addition to American Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and British Airways - these airlines can fly you to your destination from £638 and £651, respectively. These flights start at 8% 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 (£445), Lufthansa (£600), and British Airways (£614).

  • 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 30 April 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest£496Average£639FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
FinnairCheapest£518Average£631FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Virgin AtlanticCheapest£520Average£636FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
British AirwaysCheapest£523Average£654FlexibilityNo cancel feeOn-time70%
Search British Airways flights
United AirlinesCheapest£541Average£705FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
IberiaCheapest£564Average£985FlexibilityNo cancel feeOn-time77%
Search Iberia flights

Fly with Cheapflights

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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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