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$335+ Cheap flights from Knoxville (TYS) to Heathrow (LHR)

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 9/23. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — LHR
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
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Cheapflights Tip: The best prices from Knoxville McGhee Tyson to London Heathrow are usually found in February or October, booked 85 days in advance, depart on a Wednesday or Sunday and return on a Friday

Cheap flight deals from Knoxville to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Knoxville (TYS) to Heathrow (LHR). 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 September 16, 2025.

Round-trip from

$568
(Delta)

One-way from

$335
(Mytrip)

Popular in

June

Cheapest in

February

Average price

$788
From Knoxville McGhee Tyson to London Heathrow
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One-way flight from Knoxville McGhee Tyson to London Heathrow
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Highest demand for flights based on searches. 18% potential increase in price ($205 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($39 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Knoxville to Heathrow

Cheapest flights from Knoxville to Heathrow
Explore the most affordable flight options available from Knoxville to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2025.

This Delta deal was found by Cheapflights users on 9/14. 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.
Wed 10/292:27 pmTYS - LHR
1 stop13h 23mDelta
Wed 11/511:30 amLHR - TYS
2 stops16h 52mDelta
Deal found 9/14$568
This KLM deal was found by Cheapflights users on 9/16. 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.
Mon 10/138:10 pmTYS - LHR
1 stop12h 20mKLM
Thu 10/233:15 pmLHR - TYS
1 stop13h 31mKLM
Deal found 9/16$576
This Virgin Atlantic deal was found by Cheapflights users on 9/14. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/223:48 pmTYS - LHR
2 stops12h 27mVirgin Atlantic
Fri 10/3110:10 amLHR - TYS
2 stops15h 03mVirgin Atlantic
Deal found 9/14$580
This Scandinavian Airlines deal was found by Cheapflights users on 9/15. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/303:48 pmTYS - LHR
2 stops20h 12mScandinavian Airlines
Thu 11/66:40 amLHR - TYS
2 stops22h 06mScandinavian Airlines
Deal found 9/15$598
This Scandinavian Airlines deal was found by Cheapflights users on 9/15. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/293:48 pmTYS - LHR
2 stops21h 52mScandinavian Airlines
Mon 11/36:40 amLHR - TYS
2 stops22h 06mScandinavian Airlines
Deal found 9/15$604
This Delta deal was found by Cheapflights users on 9/16. 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.
Wed 10/2910:25 amTYS - LHR
1 stop17h 25mDelta
Mon 11/311:30 amLHR - TYS
2 stops17h 16mDelta
Deal found 9/16$618
This KLM deal was found by Cheapflights users on 9/16. 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.
Wed 10/292:27 pmTYS - LHR
1 stop13h 23mKLM
Mon 11/31:00 pmLHR - TYS
1 stop13h 13mKLM
Deal found 9/16$626
This Scandinavian Airlines deal was found by Cheapflights users on 9/15. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/143:51 pmTYS - LHR
2 stops19h 09mScandinavian Airlines
Fri 11/286:40 amLHR - TYS
2 stops22h 12mScandinavian Airlines
Deal found 9/15$634

Cheapflights Fare Finder

 
Customize your flight search to find flights from Knoxville to Heathrow 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 September 16, 2025.
Use the filters below to find and compare flights from Knoxville to London Heathrow Airport that are best for you.

Fly from

Knoxville

Fly to

Heathrow

Route

Depart

Return

Price

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Wed 10/29

2:27 pm-7:50 am

1 stop13h 23m

London Heathrow

Wed 11/5

11:30 am-11:22 pm

2 stops16h 52m

$568

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Wed 10/29

5:16 pm-7:50 am

1 stop10h 34m

London Heathrow

Wed 11/5

12:30 pm-8:10 pm

1 stop12h 40m

$576

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Wed 10/22

5:16 pm-11:10 am

1 stop12h 54m

London Heathrow

Fri 10/31

3:50 pm-10:28 am

1 stop22h 38m

$576

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Sun 9/28

7:11 pm-1:30 pm

1 stop13h 19m

London Heathrow

Tue 10/14

9:20 am-11:07 pm

1 stop18h 47m

$576

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Wed 10/22

3:48 pm-11:25 am

2 stops14h 37m

London Heathrow

Fri 10/31

1:00 pm-9:13 pm

1 stop12h 13m

$580

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Mon 9/29

1:52 pm-11:10 am

1 stop16h 18m

London Heathrow

Wed 10/15

9:35 am-11:07 pm

2 stops18h 32m

$580

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Thu 10/30

3:48 pm-4:00 pm

2 stops20h 12m

London Heathrow

Thu 11/6

6:40 am-11:46 pm

2 stops22h 06m

$598

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Wed 10/29

3:48 pm-5:40 pm

2 stops21h 52m

London Heathrow

Mon 11/3

6:40 am-11:46 pm

2 stops22h 06m

$604

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Wed 10/29

10:25 am-7:50 am

1 stop17h 25m

London Heathrow

Mon 11/3

11:30 am-11:46 pm

2 stops17h 16m

$618

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Fri 10/31

6:40 am-7:05 am

1 stop20h 25m

London Heathrow

Fri 11/7

11:30 am-11:46 pm

2 stops17h 16m

$618

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 18 results
1
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Best time to book a flight from Knoxville to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Knoxville 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 Knoxville to London Heathrow Airport

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

Use this chart to determine the optimal time to book a round-trip flight from Knoxville to Heathrow. Price data was last updated on September 12, 2025.

To ensure you get the cheapest price possible for a flight from Knoxville to London Heathrow Airport, you should look to book at least 85 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 Knoxville to London Heathrow Airport?

Currently, November is the cheapest month in which you can book a flight from Knoxville to London Heathrow Airport (average of $661). Flying from Knoxville to London Heathrow Airport in June is currently the most expensive (average of $1,097). 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 TYS to LHR?

Find hourly flight availability from Knoxville to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 16, 2025.

When flying from Knoxville to London Heathrow Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 15% versus a flight in the afternoon.

How much does it cost to fly round-trip from Knoxville to London Heathrow Airport?

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. 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 Heathrow. Reviews last updated September 16, 2025.
See what other customers who have flown with Delta, United Airlines, and Virgin Atlantic from Knoxville to London Heathrow Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,957 reviews

Comfort

7.9

Entertainment

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Food

7.3

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
7,957 reviews
Delta
8.0
Very good
7,957 reviews

Comfort

7.9

Entertainment

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Food

7.3

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
8,924 reviews
Delta
8.0
Very good
7,957 reviews

Comfort

7.9

Entertainment

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Food

7.3

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
664 reviews
Delta
8.0
Very good
7,957 reviews

Comfort

7.9

Entertainment

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Food

7.3

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!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,957 reviews

Comfort

7.9

Entertainment

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Food

7.3

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!
British Airways
6.7
Okay
7,363 reviews
Delta
8.0
Very good
7,957 reviews

Comfort

7.9

Entertainment

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Food

7.3

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 Knoxville to Heathrow. 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 from for flights from Knoxville to London Heathrow?

    Knoxville McGhee Tyson (TYS) is the airport you will fly out of if you book a flight from Knoxville to London Heathrow. You should not have trouble finding flights to London Heathrow from McGhee Tyson; the airport handles an average of 0 outbound flights to London Heathrow per day. You should also have plenty of airline options to choose from since 5 airlines have flights from the Knoxville airport to London Heathrow. It is only a 11.3 mi journey to McGhee Tyson (TYS) from Knoxville’s city center.

  • How long is the flight from Knoxville to London Heathrow Airport?

    A quick flight from Knoxville to London Heathrow Airport can take about 10h 34m. Delta provides one of the quickest options available for as low as $576. There are 4076 mi between Knoxville and London Heathrow Airport. Both multi-stop and nonstop flights can be found to your destination and back.

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

    Cheapflights users have booked flights from Knoxville to London Heathrow Airport round-trip from $577. Other airlines that can offer you cheap pricing are Delta, from $624, and British Airways, from $693. Users have found that Virgin Atlantic is 37% cheaper than the other options available to this destination.

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

    Yes. In addition to deals on Knoxville to Heathrow flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Knoxville to Heathrow?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Knoxville to Heathrow.

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

    Yes. Cheapflights offers flight deals from Knoxville to Heathrow 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 Knoxville to London Heathrow Airport?

    Currently, November is the cheapest month in which you can book a flight from Knoxville to London Heathrow Airport (average of $661). Flying from Knoxville to London Heathrow Airport in June is currently the most expensive (average of $1,097). 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
Hounslow
Hayes
Southend-on-Sea
Harrow
Canterbury
Croydon
Eastleigh
Dartford
Dover
Winchester
Orpington
Northampton
Gatwick
Borehamwood
Broadway
Aylesbury
Bedford
Wembley
Folkestone
Chichester

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Top 5 airlines flying from Knoxville to Heathrow

Discover the top 5 airlines that operate flights from Knoxville to Heathrow. 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 September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest$577Average$944FlexibilityNo cancel feeOn-time72%
DeltaCheapest$624Average$915FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$693Average$917FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$732Average$949FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$733Average$983FlexibilityNo cancel feeOn-time71%

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