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Cheap flights from Knoxville to London from £269

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 9/4. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — LON
10 Apr — 17 Apr1
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 11 March 2026.

Tue 31/312:02
TYS
-
LGW
1 stop16h 58m
Multiple Airlines
Wed 8/414:00
LGW
-
TYS
1 stop30h 01m
Multiple Airlines
Deal found 9/3£486
Tue 31/312:02
TYS
-
LGW
1 stop16h 58m
Multiple Airlines
Tue 7/414:00
LGW
-
TYS
2 stops25h 36m
Multiple Airlines
Deal found 9/3£496
Tue 31/312:02
TYS
-
LGW
1 stop16h 58m
Multiple Airlines
Thu 9/414:00
LGW
-
TYS
1 stop32h 30m
Multiple Airlines
Deal found 9/3£504
Mon 7/916:00
TYS
-
LHR
2 stops20h 40m
Scandinavian Airlines
Mon 14/906:40
LHR
-
TYS
2 stops20h 06m
Scandinavian Airlines
Deal found 7/3£539
Wed 8/411:31
TYS
-
LHR
1 stop17h 59m
British Airways
Wed 15/409:15
LHR
-
TYS
2 stops17h 42m
British Airways
Deal found 9/3£543
Fri 4/916:00
TYS
-
LHR
2 stops36h 20m
Scandinavian Airlines
Sat 12/914:20
LHR
-
TYS
2 stops36h 26m
Scandinavian Airlines
Deal found 6/3£548
Wed 22/414:06
TYS
-
LHR
1 stop11h 49m
British Airways
Wed 29/406:45
LHR
-
TYS
2 stops20h 12m
British Airways
Deal found 9/3£551
Wed 8/417:06
TYS
-
LHR
1 stop14h 09m
Iberia
Wed 15/412:15
LHR
-
TYS
1 stop14h 06m
Iberia
Deal found 9/3£553
Tue 1/919:19
TYS
-
LHR
2 stops15h 21m
Lufthansa
Tue 15/910:50
LHR
-
TYS
2 stops18h 07m
Lufthansa
Deal found 7/3£554
Thu 9/413:20
TYS
-
LHR
1 stop13h 45m
Finnair
Thu 16/410:05
LHR
-
TYS
1 stop18h 51m
Finnair
Deal found 10/3£559
Wed 12/819:19
TYS
-
LHR
2 stops15h 21m
Lufthansa
Fri 21/809:30
LHR
-
TYS
2 stops19h 27m
Lufthansa
Deal found 6/3£561
Wed 2/917:57
TYS
-
LHR
2 stops18h 43m
Lufthansa
Wed 9/909:30
LHR
-
TYS
2 stops19h 27m
Lufthansa
Deal found 6/3£568

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 11 March 2026.

Round-trip from

£486

One-way from

£269

Popular in

June

Cheapest in

January

Average price

£565
31/3-8/4
  • 31/3-8/4
  • 2 total stops
  • 46h 59m total
  • Knoxville to London
Search Deals
9/4
  • 9/4
  • 3 total stops
  • 45h 40m total
  • Knoxville to London
Search Deals
Highest demand for flights based on searches. 24% potential increase in price (£148 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (£26 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 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 11 March 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

Tue 31/3

12:02-10:00

1 stop16h 58m

London Gatwick

Wed 8/4

14:00-22:05

2 stops37h 05m

£502

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Tue 1/9

19:19-10:40

1 stop10h 21m

London Heathrow

Tue 15/9

06:50-16:59

2 stops15h 09m

£579

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Wed 2/9

05:45-06:55

1 stop20h 10m

London Heathrow

Wed 9/9

06:50-20:48

2 stops18h 58m

£579

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Tue 31/3

10:49-06:45

1 stop14h 56m

London Heathrow

Tue 7/4

06:55-19:42

2 stops17h 47m

£580

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Sat 18/4

19:20-21:20

2 stops21h 00m

London Heathrow

Tue 5/5

06:50-20:12

2 stops18h 22m

£583

KnoxvilleLondon

TYS - LCY

TYSLCY

Knoxville McGhee Tyson

Wed 2/9

17:57-17:55

2 stops18h 58m

London City

Wed 9/9

09:15-23:57

2 stops19h 42m

£585

KnoxvilleLondon

TYS - LCY

TYSLCY

Knoxville McGhee Tyson

Tue 18/8

17:57-17:55

2 stops18h 58m

London City

Tue 25/8

09:15-23:57

2 stops19h 42m

£585
Fastest return journey

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Tue 31/3

19:20-10:40

1 stop10h 20m

London Heathrow

Wed 8/4

12:15-19:42

1 stop12h 27m

£600

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Wed 6/5

10:49-06:55

2 stops15h 06m

London Heathrow

Wed 20/5

10:25-20:45

2 stops15h 20m

£604

KnoxvilleLondon

TYS - LCY

TYSLCY

Knoxville McGhee Tyson

Tue 1/9

17:57-17:55

2 stops18h 58m

London City

Tue 15/9

09:15-23:57

2 stops19h 42m

£620

Flights are sorted by cheapest return flights first.

Deals found on 9/3

Showing 1-10 of 45 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 6 March 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 £400). Flying from Knoxville to London in June is currently the most expensive (average of £658). 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 33% 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 Charlotte (CLT) have the shortest average one-way travel time for one-stop routes: 10h 27m.

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.

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 10h 21m. 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 £400). Flying from Knoxville to London in June is currently the most expensive (average of £658). 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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