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Cheap flights from Knoxville to London from £258

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 30/9. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — LON
13 May — 20 May1
1 adult
1 adult, Economy, 0 bags

Cheap 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 13 April 2026.

Mon 25/522:03
TYS
-
LGW
1 stop30h 57m
Multiple Airlines
Mon 1/614:00
LGW
-
TYS
1 stop14h 37m
Multiple Airlines
Deal found 11/4£658
Tue 26/509:30
TYS
-
LGW
1 stop19h 30m
Multiple Airlines
Mon 1/614:00
LGW
-
TYS
1 stop14h 37m
Multiple Airlines
Deal found 11/4£667
Mon 14/915:05
TYS
-
LHR
1 stop14h 45m
Iberia
Wed 23/906:15
LHR
-
TYS
2 stops20h 00m
Iberia
Deal found 9/4£667
Mon 25/522:03
TYS
-
LGW
1 stop30h 57m
Multiple Airlines
Tue 2/614:00
LGW
-
TYS
1 stop33h 21m
Multiple Airlines
Deal found 11/4£670
Mon 25/522:03
TYS
-
LGW
1 stop30h 57m
Multiple Airlines
Wed 3/614:00
LGW
-
TYS
1 stop29h 52m
Multiple Airlines
Deal found 11/4£678
Tue 26/509:30
TYS
-
LGW
1 stop19h 30m
Multiple Airlines
Tue 2/614:00
LGW
-
TYS
1 stop33h 21m
Multiple Airlines
Deal found 11/4£679
Tue 1/918:07
TYS
-
LHR
1 stop13h 43m
British Airways
Tue 15/906:15
LHR
-
TYS
2 stops20h 39m
British Airways
Deal found 9/4£684
Wed 19/817:37
TYS
-
LHR
1 stop13h 38m
British Airways
Wed 2/909:15
LHR
-
TYS
2 stops17h 29m
British Airways
Deal found 12/4£685
Tue 26/509:30
TYS
-
LGW
1 stop19h 30m
Multiple Airlines
Wed 3/614:00
LGW
-
TYS
1 stop29h 52m
Multiple Airlines
Deal found 11/4£687
Wed 12/820:25
TYS
-
LHR
1 stop11h 25m
British Airways
Fri 21/812:15
LHR
-
TYS
1 stop14h 08m
British Airways
Deal found 8/4£687
Wed 19/818:05
TYS
-
LHR
1 stop10h 00m
Multiple Airlines
Wed 2/907:50
LHR
-
TYS
2 stops20h 08m
Multiple Airlines
Deal found 13/4£690
Tue 21/408:00
TYS
-
LGW
2 stops25h 40m
Multiple Airlines
Sun 26/414:00
LGW
-
TYS
1 stop32h 30m
Multiple Airlines
Deal found 12/4£690

Find 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 13 April 2026.

Round-trip from

£658

One-way from

£258

Popular in

June

Cheapest in

January

Average price

£580
25/5-1/6
  • 25/5-1/6
  • 2 total stops
  • 45h 34m total
  • Knoxville to London
Search Deals
British Airways
  • British Airways
  • 30/9
  • 1 total stop
  • 10h 31m total
  • Knoxville to London
Search Deals
Highest demand for flights based on searches. 23% potential increase in price (£146 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (£26 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

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 13 April 2026.
Use the filters below to find and compare flights from Knoxville to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

KnoxvilleLondon

TYS - LGW

TYSLGW

Knoxville McGhee Tyson

Mon 25/5

22:03-10:00

1 stop30h 57m

London Gatwick

Tue 2/6

14:00-18:21

1 stop33h 21m

£670

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Wed 2/9

13:40-09:00

1 stop14h 20m

London Heathrow

Wed 9/9

08:55-21:54

1 stop17h 59m

£696

KnoxvilleLondon

TYS - LGW

TYSLGW

Knoxville McGhee Tyson

Thu 28/5

07:15-07:55

2 stops19h 40m

London Gatwick

Mon 1/6

14:00-23:37

1 stop14h 37m

£707

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Wed 13/5

07:00-06:45

1 stop18h 45m

London Heathrow

Wed 20/5

06:50-17:08

2 stops15h 18m

£716

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Wed 2/9

06:30-10:00

2 stops22h 30m

London Heathrow

Wed 9/9

06:50-16:59

2 stops15h 09m

£719

KnoxvilleLondon

TYS - LCY

TYSLCY

Knoxville McGhee Tyson

Wed 19/8

17:57-17:55

2 stops18h 58m

London City

Wed 2/9

09:15-23:57

2 stops19h 42m

£740

KnoxvilleLondon

TYS - LCY

TYSLCY

Knoxville McGhee Tyson

Wed 2/9

10:00-08:40

2 stops17h 40m

London City

Wed 9/9

09:15-23:57

2 stops19h 42m

£740

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Wed 12/8

10:00-05:55

2 stops14h 55m

London Heathrow

Fri 21/8

09:30-20:28

2 stops15h 58m

£740

KnoxvilleLondon

TYS - LCY

TYSLCY

Knoxville McGhee Tyson

Tue 1/9

10:00-08:40

2 stops17h 40m

London City

Tue 15/9

09:15-23:57

2 stops19h 42m

£740

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Wed 13/5

13:20-14:25

1 stop20h 05m

London Heathrow

Wed 20/5

13:45-21:57

1 stop13h 12m

£744

Flights are sorted by cheapest return flights first.

Deals found on 11/4

Showing 1-10 of 47 resultsSorted by cheapest first
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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 10 April 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, July is the cheapest month in which you can book a flight from Knoxville to London (average of £394). Flying from Knoxville to London in June is currently the most expensive (average of £664). 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.

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 52% 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 Charlotte (CLT) have the shortest average one-way travel time for one-stop routes: 10h 23m.

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 Charlotte (CLT) offer the fastest connection on this route, with an average stopover time of 1h 15m.

How often are flights from Knoxville to London delayed?

About 0% of weekly flights between Knoxville and London have experienced delays in the past year, with the average delay time being 0 minutes.

What is the most punctual flight time for Knoxville to London flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Thursday tends to have the lowest number of delays on this route, whereas Thursday has historically faced a higher average of delays compared to other days of the week.

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 12h 24m. 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, July is the cheapest month in which you can book a flight from Knoxville to London (average of £394). Flying from Knoxville to London in June is currently the most expensive (average of £664). 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

Travelling to a place near London?

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Wembley
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Watford
Kingston upon Thames
Romford
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Ipswich
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