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$561+ Cheap flights from Heathrow (LHR) to Knoxville (TYS)

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 7/25. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — TYS
Apr 20 — Apr 271
Sun 4/20
Sun 4/27
1 adult, Economy
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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 Friday or Monday and return on a Wednesday

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 April 15, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$754
(United Airlines)

One-way from

$561
(Kiwi.com)

Popular in

August

Cheapest in

November

Average price

$847
Provider with most accurate pricing for London Heathrow-Knoxville McGhee Tyson flight deals.
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Provider most trusted by Cheapflights users for London Heathrow-Knoxville McGhee Tyson flights.
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From London Heathrow to Knoxville McGhee Tyson
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One-way flight from London Heathrow to Knoxville McGhee Tyson
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Highest demand for flights based on searches. 13% potential increase in price ($141 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($24 potential savings vs. average RT 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 April 15, 2025.

This United Airlines deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/1611:05 amLHR - TYS
2 stops31h 31mUnited Airlines
Sun 5/185:50 amTYS - LHR
1 stop20h 05mUnited Airlines
Deal found 4/14$754
This Finnair deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1810:05 amLHR - TYS
1 stop12h 34mMultiple Airlines
Tue 12/168:26 pmTYS - LHR
1 stop10h 34mMultiple Airlines
Deal found 4/14$773
This ChecknFly deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure ChecknFly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/1511:05 amLHR - TYS
1 stop28h 10mLufthansa
Wed 5/214:50 pmTYS - LHR
1 stop33h 50mLufthansa
Deal found 4/14$798
This American Airlines deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/309:45 amLHR - TYS
2 stops14h 15mAmerican Airlines
Wed 7/306:05 pmTYS - LHR
1 stop10h 00mAmerican Airlines
Deal found 4/14$813
This British Airways deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/297:45 amLHR - TYS
2 stops38h 55mBritish Airways
Tue 7/296:39 pmTYS - LHR
1 stop10h 51mBritish Airways
Deal found 4/14$828
This Delta deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2811:20 amLHR - TYS
1 stop13h 40mDelta
Tue 7/298:47 amTYS - LHR
1 stop17h 28mDelta
Deal found 4/14$835
This EaseMyTrip deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure EaseMyTrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/153:15 pmLHR - TYS
1 stop13h 32mVirgin Atlantic
Tue 7/296:10 pmTYS - LHR
1 stop14h 20mVirgin Atlantic
Deal found 4/14$865
This Billigflug deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Billigflug is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/161:05 pmLHR - TYS
1 stop11h 49mAir France
Sun 5/187:10 pmTYS - LHR
1 stop13h 20mAir France
Deal found 4/15$925
This Finnair deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2912:00 pmLHR - TYS
1 stop16h 55mFinnair
Wed 7/306:22 pmTYS - LHR
1 stop15h 03mFinnair
Deal found 4/14$972
This KLM deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/119:20 amLHR - TYS
1 stop12h 56mKLM
Sat 7/192:30 pmTYS - LHR
1 stop11h 15mKLM
Deal found 4/14$985
This oojo deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/17:30 pmLHR - TYS
2 stops33h 18mScandinavian Airlines
Fri 8/14:00 pmTYS - LHR
2 stops36h 20mScandinavian Airlines
Deal found 4/14$1,024
This KAYAK deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/267:40 amLHR - TYS
2 stops16h 45mAer Lingus
Fri 5/3011:43 amTYS - LHR
2 stops16h 22mAer Lingus
Deal found 4/14$1,817

Cheapflights Fare Finder

Customize 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 2,558,603 searches. Data last updated April 15, 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

Fri 5/16

11:05 am-1:36 pm

2 stops31h 31m

Knoxville McGhee Tyson

Sun 5/18

5:50 am-6:55 am

1 stop20h 05m

$754

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Thu 5/15

11:05 am-10:15 am

1 stop28h 10m

Knoxville McGhee Tyson

Wed 5/21

4:50 pm-7:40 am

1 stop33h 50m

$798

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Fri 5/16

6:15 pm-11:32 am

1 stop22h 17m

Knoxville McGhee Tyson

Sun 5/18

7:30 am-8:05 am

1 stop19h 35m

$810

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Wed 4/30

9:45 am-7:00 pm

2 stops14h 15m

Knoxville McGhee Tyson

Wed 7/30

6:05 pm-9:05 am

1 stop10h 00m

$813

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Tue 4/29

7:45 am-5:40 pm

2 stops38h 55m

Knoxville McGhee Tyson

Tue 7/29

6:39 pm-10:30 am

1 stop10h 51m

$828

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Mon 4/28

11:20 am-8:00 pm

1 stop13h 40m

Knoxville McGhee Tyson

Tue 7/29

8:47 am-7:15 am

1 stop17h 28m

$835

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Tue 7/15

3:15 pm-11:47 pm

1 stop13h 32m

Knoxville McGhee Tyson

Tue 7/29

6:10 pm-1:30 pm

1 stop14h 20m

$865

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Fri 5/16

1:05 pm-7:54 pm

1 stop11h 49m

Knoxville McGhee Tyson

Sun 5/18

7:10 pm-1:30 pm

1 stop13h 20m

$925

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Tue 4/29

12:00 pm-11:55 pm

1 stop16h 55m

Knoxville McGhee Tyson

Wed 7/30

6:22 pm-2:25 pm

1 stop15h 03m

$972

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Fri 7/11

9:20 am-5:16 pm

1 stop12h 56m

Knoxville McGhee Tyson

Sat 7/19

2:30 pm-6:45 am

1 stop11h 15m

$985

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/14

Showing 1-10 of 22 results
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Compare providers for flights from Heathrow to Knoxville

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Heathrow to Knoxville in April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on London Heathrow Airport-Knoxville flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on London Heathrow Airport-Knoxville flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from London Heathrow Airport-Knoxville flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on London Heathrow Airport-Knoxville flights, Cheapflights users trust AranGrant the most. AranGrant has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for London Heathrow Airport-Knoxville flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 round-trip 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 round-trip flight from Heathrow to Knoxville. Price data was last updated on April 11, 2025.

To ensure you get the cheapest price possible for a flight from London Heathrow Airport to Knoxville, you should look to book at least 80 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Knoxville (average of $296). Flying from London Heathrow Airport to Knoxville in March is currently the most expensive (average of $376). 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.

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 2.7 - 4.8 inches per month. March is typically the wettest month, when rainfall can reach 4.8 in. October is typically the driest time to visit Knoxville when rainfall is around 2.7 in.

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 78.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

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 April 15, 2025.
To help decide which airline to fly from London to Knoxville, see what other customers have to say about Delta, KLM and Finnair. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,917 reviews

Crew

8.5

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Overall

8.0

Food

7.3

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
7,917 reviews
Delta
8.0
Very good
7,917 reviews

Crew

8.5

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Overall

8.0

Food

7.3

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
1,323 reviews
Delta
8.0
Very good
7,917 reviews

Crew

8.5

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Overall

8.0

Food

7.3

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
1,269 reviews
Delta
8.0
Very good
7,917 reviews

Crew

8.5

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Overall

8.0

Food

7.3

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
7.5
Good
1,433 reviews
Delta
8.0
Very good
7,917 reviews

Crew

8.5

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Overall

8.0

Food

7.3

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
8,656 reviews
Delta
8.0
Very good
7,917 reviews

Crew

8.5

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Overall

8.0

Food

7.3

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?

    For a flight from London Heathrow to Knoxville, you will be flying into McGhee Tyson. Knoxville McGhee Tyson (TYS) is just 11.3 mi from the center of the city. McGhee Tyson is the only Knoxville airport and it handles 0 inbound flights from London Heathrow per day. 2 airlines have flights to Knoxville McGhee Tyson from London Heathrow on a regular basis.

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

    Currently priced at $754, United Airlines will fly you from London Heathrow Airport to Knoxville and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Lufthansa and American Airlines - these airlines can fly you to your destination from $798 and $813, respectively. United Airlines is priced at 16% lower than the current average price of a flight leaving 3 months from now.

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

    $569 is the cheapest one-way deal found within the past few days, from Aer Lingus. You may also be able to find cheap deals on WestJet and Lufthansa, with prices starting from $747 and $798, respectively.

  • 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 vacation 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, January is the cheapest month in which you can book a flight from London Heathrow Airport to Knoxville (average of $296). Flying from London Heathrow Airport to Knoxville in March is currently the most expensive (average of $376). 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

Traveling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Morristown
Cherokee
Corbin
Maryville
Oak Ridge
Alcoa
Murphy

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Top 2 airlines flying from Heathrow to Knoxville

Discover the top 2 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 2,558,603 searches. Data last updated April 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$791Average$1,204FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$922Average$1,100FlexibilityNo cancel feeOn-time71%

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