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Cheap flights from Knoxville to London from £280

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 25/3. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — LON
13 Feb — 20 Feb1
1 adult
1 adult, Economy, 0 bags

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 14 January 2026.

Round-trip from

£432

One-way from

£280

Popular in

June

Cheapest in

January

Average price

£449
British Airways
  • British Airways
  • 15/4-20/4
  • 3 total stops
  • 42h 11m total
  • Knoxville to London
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British Airways
  • British Airways
  • 25/3
  • 2 total stops
  • 25h 55m total
  • Knoxville to London
Search Deals
Highest demand for flights based on searches. 21% potential increase in price (£128 potential increase over avg. return price).
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Cheapest flight prices on average. 4% potential price decrease (£21 potential savings vs. average return price).
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Average for round-trip flights in January 2026
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Find flight deals from Knoxville to London

Enter your travel dates to find the best prices.

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 14 January 2026.

Sun 25/111:58
TYS
-
LHR
1 stop13h 27m
Virgin Atlantic
Tue 10/220:25
LHR
-
TYS
2 stops29h 22m
Virgin Atlantic
Deal found 14/1£423
Mon 23/217:47
TYS
-
LHR
1 stop10h 28m
British Airways
Tue 3/306:05
LHR
-
TYS
2 stops19h 52m
British Airways
Deal found 14/1£430
Tue 20/116:00
TYS
-
LHR
1 stop12h 15m
British Airways
Tue 27/117:25
LHR
-
TYS
2 stops32h 31m
British Airways
Deal found 13/1£432
Wed 28/107:44
TYS
-
LGW
2 stops23h 21m
British Airways
Tue 3/219:40
LGW
-
TYS
2 stops30h 16m
British Airways
Deal found 13/1£435
Wed 18/216:04
TYS
-
LHR
1 stop12h 11m
British Airways
Mon 23/219:15
LHR
-
TYS
2 stops30h 42m
British Airways
Deal found 12/1£435
Sat 18/418:38
TYS
-
LHR
1 stop32h 12m
British Airways
Tue 5/507:50
LHR
-
TYS
2 stops19h 07m
British Airways
Deal found 13/1£437
Tue 31/316:02
TYS
-
LHR
1 stop13h 28m
British Airways
Tue 14/419:25
LHR
-
TYS
2 stops31h 32m
British Airways
Deal found 13/1£438
Wed 28/116:00
TYS
-
LHR
1 stop15h 00m
British Airways
Wed 4/210:15
LHR
-
TYS
1 stop15h 41m
British Airways
Deal found 13/1£441
Wed 28/107:44
TYS
-
LHR
1 stop19h 06m
British Airways
Tue 3/217:25
LHR
-
TYS
2 stops32h 31m
British Airways
Deal found 12/1£441
Tue 7/417:06
TYS
-
LHR
1 stop14h 09m
British Airways
Tue 21/406:15
LHR
-
TYS
2 stops20h 42m
British Airways
Deal found 12/1£442
Wed 15/417:06
TYS
-
LGW
2 stops15h 44m
British Airways
Mon 20/421:05
LGW
-
TYS
2 stops29h 30m
British Airways
Deal found 12/1£444
Wed 28/105:40
TYS
-
LHR
1 stop19h 45m
Delta
Wed 4/209:00
LHR
-
TYS
2 stops19h 45m
Delta
Deal found 13/1£447

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 14 January 2026.
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

Wed 28/1

16:00-12:00

1 stop15h 00m

London Heathrow

Tue 3/2

10:45-20:56

2 stops39h 11m

£432

KnoxvilleLondon

TYS - LGW

TYSLGW

Knoxville McGhee Tyson

Wed 28/1

07:44-12:05

2 stops23h 21m

London Gatwick

Tue 3/2

19:40-20:56

2 stops30h 16m

£435

KnoxvilleLondon

TYS - LGW

TYSLGW

Knoxville McGhee Tyson

Wed 15/4

17:06-13:50

2 stops15h 44m

London Gatwick

Mon 20/4

21:05-21:35

2 stops29h 30m

£444

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Wed 28/1

10:07-08:05

2 stops16h 58m

London Heathrow

Wed 4/2

11:30-23:45

2 stops17h 15m

£450

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Wed 28/1

11:58-06:50

2 stops13h 52m

London Heathrow

Tue 3/2

11:45-23:45

2 stops17h 00m

£451

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Sun 1/3

13:00-08:45

1 stop14h 45m

London Heathrow

Wed 25/3

13:00-10:31

1 stop25h 31m

£453

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Mon 2/3

16:03-07:50

1 stop10h 47m

London Heathrow

Wed 25/3

15:50-09:16

1 stop21h 26m

£453

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Wed 25/2

16:02-11:35

1 stop14h 33m

London Heathrow

Thu 26/3

12:35-21:24

1 stop12h 49m

£453

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Tue 24/2

14:38-06:25

1 stop10h 47m

London Heathrow

Wed 25/3

15:50-09:16

1 stop21h 26m

£453

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Mon 2/3

06:10-06:35

1 stop19h 25m

London Heathrow

Tue 24/3

13:10-20:57

1 stop11h 47m

£453

Flights are sorted by cheapest return flights first.

Deals found on 12/1

Showing 1-10 of 44 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 9 January 2026.

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, November is the cheapest month in which you can book a flight from Knoxville to London (average of £402). Flying from Knoxville to London in June is currently the most expensive (average of £673). 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’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 £517.

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 Atlanta (ATL) have the shortest average one-way travel time for one-stop routes: 10h 05m.

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 19m.

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 0 different airlines.

  • How long is the flight from Knoxville to London?

    Departing from Knoxville to London will take you 13h 52m. The distance between Knoxville and London is about 4076 mi. Both multi-stop and direct flights can be found to your destination and back.

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

    When deciding which route to take from Knoxville to London consider Knoxville McGhee Tyson - London Heathrow, Knoxville McGhee Tyson - London City or Knoxville McGhee Tyson - London Gatwick as they are the most popular.

  • 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, November is the cheapest month in which you can book a flight from Knoxville to London (average of £402). Flying from Knoxville to London in June is currently the most expensive (average of £673). 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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