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

Currently priced at $746, 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 British Airways and Virgin Atlantic - these airlines can fly you to your destination from $747 and $758, respectively. United Airlines is priced at 17% 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?

$587 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 Lufthansa and British Airways, with prices starting from $776 and $830, respectively.

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

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

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

Thursday is generally a great day to depart. Flying on this day could help you save up to 65%.

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

Travelers have found it’s best to book a flight 59 days in advance to save up to 28% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 59 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from London Heathrow Airport to Knoxville 1-2 weeks in advance for as low as $767, or $1,203 for flights within the next 24 hours.

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

Flights from London Heathrow Airport to Knoxville lean towards being more expensive in July. Prices are generally better when you fly from London Heathrow Airport to Knoxville in February, with the cheapest ticket starting at $634.

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

It’s optimal to fly from London Heathrow Airport to Knoxville at noon. By choosing this option you can save up to 20% on the cost of your flight, compared to a flight in the morning.

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.

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.

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.

$510+ Flights from London Heathrow Airport to Knoxville

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1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

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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

Most accurate provider	AranGrant 3 stars
Most trusted provider	AranGrant 3 stars
Round-trip from	$746 (United Airlines)
One-way from	$510 (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

Search Deals

Highest demand for flights based on searches. 13% potential increase in price ($141 potential increase over avg. RT price).

Search Deals

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 17, 2025.

Tue 7/1512:15 pmLHR - TYS

1 stop27h 12mUnited Airlines

Tue 7/299:35 amTYS - LHR

2 stops20h 05mUnited Airlines

Deal found 4/17

$746

Thu 9/412:15 pmLHR - TYS

1 stop14h 19mBritish Airways

Thu 9/184:02 pmTYS - LHR

1 stop13h 18mBritish Airways

Deal found 4/16

$747

Thu 9/411:45 amLHR - TYS

2 stops17h 02mVirgin Atlantic

Thu 9/1811:30 amTYS - LHR

2 stops13h 50mVirgin Atlantic

Deal found 4/16

$758

Wed 5/148:20 amLHR - TYS

1 stop16h 36mMultiple Airlines

Wed 5/217:50 pmTYS - LHR

1 stop30h 05mMultiple Airlines

Deal found 4/16

$771

Thu 4/243:00 pmLHR - TYS

1 stop11h 23mAmerican Airlines

Wed 5/75:58 pmTYS - LHR

1 stop10h 07mAmerican Airlines

Deal found 4/16

$777

Mon 11/242:30 pmLHR - TYS

2 stops38h 12mAir Canada

Wed 12/245:50 amTYS - LHR

2 stops19h 40mAir Canada

Deal found 4/16

$787

Sun 11/234:40 pmLHR - TYS

2 stops36h 02mLufthansa

Thu 12/252:55 pmTYS - LHR

1 stop10h 45mLufthansa

Deal found 4/16

$798

Sat 4/266:30 amLHR - TYS

2 stops16h 09mDelta

Sat 5/108:25 amTYS - LHR

1 stop24h 05mDelta

Deal found 4/16

$820

Wed 4/238:20 amLHR - TYS

1 stop20h 35mFinnair

Sun 5/1112:34 pmTYS - LHR

1 stop19h 11mFinnair

Deal found 4/16

$831

Fri 4/253:15 pmLHR - TYS

1 stop13h 33mKLM

Sun 5/117:10 pmTYS - LHR

1 stop13h 20mKLM

Deal found 4/16

$839

Mon 11/248:50 amLHR - TYS

2 stops17h 41mAer Lingus

Mon 12/2211:45 amTYS - LHR

2 stops15h 20mAer Lingus

Deal found 4/16

$911

Thu 9/47:05 amLHR - TYS

3 stops21h 42mScandinavian Airlines

Thu 9/184:00 pmTYS - LHR

2 stops20h 40mScandinavian Airlines

Deal found 4/16

$1,158

Best flights from Heathrow to Knoxville
Discover carefully curated flight deals from Heathrow to Knoxville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 17, 2025.

Tue 7/1512:15 pmLHR - TYS

1 stop27h 12mUnited Airlines

Tue 7/299:35 amTYS - LHR

2 stops20h 05mUnited Airlines

Deal found 4/17

$746

Thu 9/412:15 pmLHR - TYS

1 stop14h 19mBritish Airways

Thu 9/184:02 pmTYS - LHR

1 stop13h 18mBritish Airways

Deal found 4/16

$747

Thu 9/411:45 amLHR - TYS

2 stops17h 02mVirgin Atlantic

Thu 9/1811:30 amTYS - LHR

2 stops13h 50mVirgin Atlantic

Deal found 4/16

$758

Wed 5/148:20 amLHR - TYS

1 stop16h 36mMultiple Airlines

Wed 5/217:50 pmTYS - LHR

1 stop30h 05mMultiple Airlines

Deal found 4/16

$771

Sun 4/279:15 amLHR - TYS

1 stop11h 35mAmerican Airlines

Mon 5/127:54 pmTYS - LHR

1 stop11h 36mAmerican Airlines

Deal found 4/16

$777

Sun 4/276:30 amLHR - TYS

2 stops18h 30mDelta

Sun 5/114:22 pmTYS - LHR

2 stops14h 03mDelta

Deal found 4/16

$821

Mon 4/2812:00 pmLHR - TYS

1 stop16h 55mFinnair

Sun 5/1112:34 pmTYS - LHR

1 stop17h 16mFinnair

Deal found 4/16

$831

Sun 4/279:20 amLHR - TYS

1 stop11h 54mKLM

Sun 5/117:10 pmTYS - LHR

1 stop13h 20mKLM

Deal found 4/16

$839

Tue 7/155:40 pmLHR - TYS

2 stops33h 55mLufthansa

Tue 7/2910:55 amTYS - LHR

2 stops14h 00mLufthansa

Deal found 4/16

$919

Wed 8/209:50 amLHR - TYS

2 stops16h 44mAer Lingus

Wed 8/276:39 pmTYS - LHR

2 stops13h 46mAer Lingus

Deal found 4/16

$1,118

Thu 9/47:05 amLHR - TYS

3 stops21h 42mScandinavian Airlines

Thu 9/184:00 pmTYS - LHR

2 stops20h 40mScandinavian Airlines

Deal found 4/16

$1,158

Sun 6/18:30 amLHR - TYS

3 stops20h 29mAir Canada

Sun 6/82:25 pmTYS - LHR

3 stops15h 45mAir Canada

Deal found 4/16

$1,550

Last-minute flights from Heathrow to Knoxville
Discover last-minute flight deals from Heathrow to Knoxville. Data last updated April 17, 2025 and is based on user searches.

Wed 4/238:20 amLHR - TYS

1 stop20h 35mFinnair

Sun 5/1112:34 pmTYS - LHR

1 stop19h 11mFinnair

Deal found 4/16

$831

Thu 4/243:00 pmLHR - TYS

1 stop11h 23mAmerican Airlines

Wed 5/75:58 pmTYS - LHR

1 stop10h 07mAmerican Airlines

Deal found 4/16

$777

Fri 4/251:25 pmLHR - TYS

1 stop12h 24mMultiple Airlines

Thu 7/106:39 pmTYS - LHR

1 stop11h 16mMultiple Airlines

Deal found 4/16

$856

Fri 4/256:40 amLHR - TYS

3 stops22h 08mScandinavian Airlines

Thu 7/104:00 pmTYS - LHR

2 stops21h 30mScandinavian Airlines

Deal found 4/16

$1,294

Fri 4/259:30 amLHR - TYS

2 stops19h 29mAir Canada

Sat 5/102:20 pmTYS - LHR

2 stops14h 40mAir Canada

Deal found 4/16

$1,685

Fri 4/2510:50 amLHR - TYS

2 stops16h 32mLufthansa

Sun 5/115:35 pmTYS - LHR

1 stop31h 45mLufthansa

Deal found 4/16

$1,854

Sat 4/2611:45 amLHR - TYS

2 stops17h 03mVirgin Atlantic

Sat 5/102:20 pmTYS - LHR

2 stops35h 00mVirgin Atlantic

Deal found 4/16

$797

Sat 4/262:25 pmLHR - TYS

1 stop14h 05mBritish Airways

Sat 5/106:27 pmTYS - LHR

1 stop10h 53mBritish Airways

Deal found 4/17

$818

Sat 4/266:30 amLHR - TYS

2 stops16h 09mDelta

Sat 5/108:25 amTYS - LHR

1 stop24h 05mDelta

Deal found 4/16

$820

Sat 4/268:50 amLHR - TYS

2 stops19h 40mAer Lingus

Sun 5/1111:43 amTYS - LHR

2 stops15h 17mAer Lingus

Deal found 4/16

$1,398

Tue 4/297:45 amLHR - TYS

2 stops18h 04mBritish Airways

Thu 5/86:27 pmTYS - LHR

1 stop10h 53mBritish Airways

Deal found 4/16

$752

Wed 5/148:20 amLHR - TYS

1 stop16h 36mMultiple Airlines

Wed 5/217:50 pmTYS - LHR

1 stop30h 05mMultiple Airlines

Deal found 4/16

$771

One-way flights from Heathrow to Knoxville
Search for one-way flight options from Heathrow to Knoxville. Find affordable one-way fares based on user searches. Data last updated April 17, 2025.

Thu 5/159:25 pmLHR - TYS

2 stops43h 07mMultiple Airlines

Deal found 4/16

$510

Tue 9/167:40 amLHR - TYS

2 stops18h 54mAer Lingus

Deal found 4/16

$587

Thu 5/152:10 pmLHR - TYS

1 stop13h 35mLufthansa

Deal found 4/16

$776

Tue 9/1612:30 pmLHR - TYS

1 stop13h 19mBritish Airways

Deal found 4/16

$830

Mon 7/288:10 pmLHR - TYS

1 stop19h 16mDelta

Deal found 4/15

$2,107

Tue 9/167:05 amLHR - TYS

3 stops19h 38mScandinavian Airlines

Deal found 4/16

$2,502

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

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Tue 7/15

12:15 pm-10:27 am

1 stop27h 12m

Knoxville McGhee Tyson

Tue 7/29

9:35 am-10:40 am

2 stops20h 05m

$746

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Thu 9/4

12:15 pm-9:34 pm

1 stop14h 19m

Knoxville McGhee Tyson

Thu 9/18

4:02 pm-10:20 am

1 stop13h 18m

$747

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Thu 9/4

11:45 am-11:47 pm

2 stops17h 02m

Knoxville McGhee Tyson

Thu 9/18

11:30 am-6:20 am

2 stops13h 50m

$758

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Wed 5/14

8:20 am-7:56 pm

1 stop16h 36m

Knoxville McGhee Tyson

Wed 5/21

7:50 pm-6:55 am

1 stop30h 05m

$771

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Sun 4/27

9:15 am-3:50 pm

1 stop11h 35m

Knoxville McGhee Tyson

Mon 5/12

7:54 pm-12:30 pm

1 stop11h 36m

$777

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Sun 4/27

6:30 am-8:00 pm

2 stops18h 30m

Knoxville McGhee Tyson

Sun 5/11

7:10 pm-1:30 pm

1 stop13h 20m

$821

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Mon 4/28

12:00 pm-11:55 pm

1 stop16h 55m

Knoxville McGhee Tyson

Sun 5/11

12:34 pm-10:50 am

1 stop17h 16m

$831

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Sun 4/27

9:20 am-4:14 pm

1 stop11h 54m

Knoxville McGhee Tyson

Sun 5/11

7:10 pm-1:30 pm

1 stop13h 20m

$839

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Tue 7/15

5:40 pm-10:35 pm

2 stops33h 55m

Knoxville McGhee Tyson

Tue 7/29

10:55 am-5:55 am

2 stops14h 00m

$919

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Wed 8/20

9:50 am-9:34 pm

2 stops16h 44m

Knoxville McGhee Tyson

Wed 8/27

6:39 pm-1:25 pm

2 stops13h 46m

$1,118

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/16

Showing 1-10 of 18 results

Compare providers for flights from Heathrow to Knoxville

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.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*2 stars
AranGrant	Price Accuracy3 stars	Trust 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?

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

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

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

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

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

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

1,329 reviews

Delta

8.0

Very good

7,917 reviews

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

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

8,667 reviews

Delta

8.0

Very good

7,917 reviews

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

7,917 reviews

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

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 $746, 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 British Airways and Virgin Atlantic - these airlines can fly you to your destination from $747 and $758, respectively. United Airlines is priced at 17% 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?
$587 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 Lufthansa and British Airways, with prices starting from $776 and $830, 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

Morristown

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Corbin

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Alcoa

Murphy

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Other flights to Knoxville

Top 2 airlines flying from Heathrow to Knoxville

Airline	Cheapest	Average	Flexibility	On-time
British Airways	Cheapest$791	Average$1,204	FlexibilityNo cancel fee	On-time70%
American Airlines	Cheapest$922	Average$1,100	FlexibilityNo cancel fee	On-time71%

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$510+ 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 5/15. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Heathrow to Knoxville with Cheapflights

1. Tell us where you want to go

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3. Compare prices and book

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

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Heathrow to Knoxville

Cheapest flights from Heathrow to KnoxvilleExplore 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 17, 2025.

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 17, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from London Heathrow Airport to Knoxville that are best for you.

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.

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.

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.

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

Rainfall in Knoxville by month

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

Temperature in Knoxville by month

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

Reviews of airlines servicing Knoxville

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.

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?

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

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

Can I find deals for flights from Heathrow to Knoxville that include hotel bookings?

How can I find direct flights from Heathrow to Knoxville?

Can I find deals for business class flights from Heathrow to Knoxville?

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

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Alternative routes for Heathrow to Knoxville

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Top 2 airlines flying from Heathrow to Knoxville

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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 17, 2025.