Cheap flights from Knoxville to London from £187

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 8/10. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — LON
27 Aug — 3 Sep1
1 adult

Cheapflights Tip: The best prices from Knoxville McGhee Tyson to London are usually found in February or November, booked 47 days in advance, depart on a Tuesday or Monday and return on a Monday

Cheap flight deals from Knoxville to London

Discover tips and strategies to find the most affordable flight options for your journey from Knoxville (TYS) to London (LON). 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 22 August 2025.

Round-trip from

£422

One-way from

£187

Popular in

June

Cheapest in

February

Average price

£648
Delta
  • Delta
  • 1/9-16/9
  • 2 total stops
  • 35h 14m total
  • Knoxville to London
8/10
  • 8/10
  • 1 total stop
  • 13h 40m total
  • Knoxville to London
Highest demand for flights based on searches. 18% potential increase in price (£115 potential increase over avg. return price).
Cheapest flight prices on average. 4% potential price decrease (£24 potential savings vs. average return price).
Average for round-trip flights in August 2025

Find flight deals from Knoxville to London

Cheapest flights from Knoxville to London
Explore the most affordable flight options available from Knoxville to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 August 2025.

Mon 1/905:45TYS - LHR
1 stop20h 30mDelta
Tue 16/910:55LHR - TYS
1 stop14h 44mDelta
Deal found 20/8£422
Wed 12/1112:00TYS - LHR
1 stop13h 25mDelta
Thu 20/1106:20LHR - TYS
2 stops16h 53mDelta
Deal found 21/8£423
Mon 13/1015:48TYS - LHR
1 stop9h 57mDelta
Thu 23/1008:40LHR - TYS
2 stops16h 30mDelta
Deal found 21/8£423
Mon 13/1018:04TYS - LHR
1 stop14h 06mKLM
Thu 23/1015:15LHR - TYS
1 stop13h 31mKLM
Deal found 21/8£428
Fri 24/1015:48TYS - LHR
1 stop16h 42mDelta
Fri 31/1006:20LHR - TYS
2 stops18h 53mDelta
Deal found 21/8£459
Wed 1/1015:21TYS - LGW
1 stop13h 39mMultiple Airlines
Wed 8/1014:00LGW - TYS
1 stop23h 40mMultiple Airlines
Deal found 20/8£463
Fri 24/1018:04TYS - LHR
1 stop14h 06mKLM
Fri 31/1015:50LHR - TYS
1 stop22h 38mKLM
Deal found 21/8£465
Mon 1/911:54TYS - LCY
2 stops14h 21mDelta
Tue 16/909:20LCY - TYS
2 stops16h 59mDelta
Deal found 20/8£490
Wed 1/1013:52TYS - LCY
2 stops14h 38mDelta
Wed 8/1010:00LCY - TYS
2 stops18h 07mDelta
Deal found 20/8£514
Tue 16/911:25TYS - LGW
1 stop17h 35mMultiple Airlines
Fri 26/914:00LGW - TYS
1 stop31h 08mMultiple Airlines
Deal found 20/8£522
Tue 16/908:23TYS - LGW
2 stops18h 47mAmerican Airlines
Fri 26/910:40LGW - TYS
2 stops18h 10mAmerican Airlines
Deal found 20/8£541
Wed 12/1114:25TYS - LCY
2 stops17h 25mMultiple Airlines
Thu 20/1109:40LCY - TYS
2 stops19h 04mMultiple Airlines
Deal found 21/8£542

Cheapflights Fare Finder

 
Customise your flight search to find flights from Knoxville to London 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 22 August 2025.
Use the filters below to find and compare flights from Knoxville to London that are best for you.

Fly from

Knoxville

Fly to

London

Route

Depart

Return

Price

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Mon 1/9

05:45-07:15

1 stop20h 30m

London Heathrow

Tue 16/9

10:55-20:39

1 stop14h 44m

£422

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Wed 12/11

12:00-06:25

1 stop13h 25m

London Heathrow

Thu 20/11

06:20-18:13

2 stops16h 53m

£423

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Tue 6/1

16:00-09:00

1 stop12h 00m

London Heathrow

Fri 16/1

10:00-23:44

2 stops18h 44m

£423

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Wed 7/1

12:00-09:00

1 stop16h 00m

London Heathrow

Fri 16/1

11:45-23:44

2 stops16h 59m

£423

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Wed 7/1

14:30-06:25

1 stop10h 55m

London Heathrow

Thu 15/1

06:30-20:36

2 stops19h 06m

£423

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Mon 5/1

10:05-09:00

1 stop17h 55m

London Heathrow

Fri 16/1

10:00-23:44

2 stops18h 44m

£423

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Mon 13/10

15:48-06:45

1 stop9h 57m

London Heathrow

Thu 23/10

08:40-20:10

2 stops16h 30m

£423

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Tue 6/1

10:05-07:50

1 stop16h 45m

London Heathrow

Thu 15/1

08:40-23:00

2 stops19h 20m

£423

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Mon 5/1

11:55-08:05

1 stop15h 10m

London Heathrow

Thu 15/1

08:40-23:00

2 stops19h 20m

£423

KnoxvilleLondon

TYS - LGW

TYSLGW

Knoxville McGhee Tyson

Wed 1/10

15:21-10:00

1 stop13h 39m

London Gatwick

Wed 8/10

14:00-08:40

1 stop23h 40m

£463

Flights are sorted by cheapest return flights first.

Deals found on 20/8

Showing 1-10 of 38 results
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Best time to book a flight from Knoxville to London

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

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

Use this chart to determine the optimal time to book a return flight from Knoxville to London. Price data was last updated on 8 August 2025.

To ensure you get the cheapest price possible for a flight from Knoxville to London, you should look to book at least 45 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?

Currently, January is the cheapest month in which you can book a flight from Knoxville to London (average of £112). Flying from Knoxville to London in August is currently the most expensive (average of £164). 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 LON?

Find hourly flight availability from Knoxville to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 22 August 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Knoxville to London as you normally would.

How much does it cost for a return flight from Knoxville to London?

What’s the top stopover airport for flights from Knoxville to London?

Share of one-stop return flights from Knoxville to London chosen by Cheapflights users in the past 12 months, using the same stopover each way.

Atlanta (ATL) – chosen by Cheapflights users on 53% of one-stop itineraries from Knoxville to London on Cheapflights.

What’s the cheapest stopover airport for flights from Knoxville to London?

Average return fare for one-stop flights from Knoxville to London, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

Chicago (ORD) is the most affordable one-stop option, with an average return flight price of £518.

What’s the fastest stopover option from Knoxville to London?

Shortest average travel time for one-stop one-way flights from Knoxville to London, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.

Flights via Philadelphia (PHL) have the shortest average one-way travel time for one-stop routes: 9h 59m.

Which airport typically offers the quickest stopover for flights from Knoxville to London?

Average stopover duration for one-stop one-way flights from Knoxville to London, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Atlanta (ATL) offer the fastest connection on this route, with an average stopover time of 1h 21m.

Related info for your journey

Find useful and relevant information for your journey from Knoxville to London. 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?

    Located just 11.3 mi from the city center, Knoxville McGhee Tyson is the airport most travelers will use when flying to London from Knoxville. Booking flights from McGhee Tyson (TYS) to London should be relatively easy as there are 0 daily outbound flights to London from 2 different airlines.

  • How long is the flight from Knoxville to London?

    Departing from Knoxville to London will take you 18h 47m. The distance between Knoxville and London is about 4095 mi. Both multi-stop and direct flights can be found to your destination and back.

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

    Flying on Scandinavian Airlines is currently your cheapest option to London, with prices starting at £505. Another option worth looking into is British Airways, starting at £518 return. You may be able to fly from Knoxville to London for 27% less than the average price by searching for these airlines.

  • What are the most popular routes from Knoxville to London?

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Knoxville to London 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?

    Currently, January is the cheapest month in which you can book a flight from Knoxville to London (average of £112). Flying from Knoxville to London in August is currently the most expensive (average of £164). 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

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Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from Knoxville to London

Discover the top 2 airlines that operate flights from Knoxville to London. 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 22 August 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest£505Average£505FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
British AirwaysCheapest£518Average£683FlexibilityNo cancel feeOn-time70%
Search British Airways flights

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

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Why should you use Cheapflights to find cheap flight tickets from Knoxville to London?

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Can Cheapflights find flights from Knoxville to London with no change fees?

Need flexible booking options for your flight to London from Knoxville? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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