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Cheap flights from Knoxville to London from £235

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 28/3. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — LON
29 Mar — 5 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 27 February 2026.

Tue 1/910:16
TYS
-
LHR
2 stops16h 24m
Lufthansa
Tue 15/910:50
LHR
-
TYS
2 stops18h 09m
Lufthansa
Deal found 25/2£514
Tue 3/310:53
TYS
-
LHR
1 stop14h 02m
United Airlines
Tue 10/306:50
LHR
-
TYS
2 stops16h 39m
United Airlines
Deal found 24/2£523
Tue 3/313:00
TYS
-
LHR
2 stops13h 40m
Delta
Tue 10/308:40
LHR
-
TYS
2 stops18h 23m
Delta
Deal found 24/2£524
Tue 3/308:30
TYS
-
LHR
1 stop18h 20m
Delta
Tue 17/309:00
LHR
-
TYS
2 stops18h 57m
Delta
Deal found 24/2£527
Wed 6/514:25
TYS
-
LHR
1 stop11h 30m
United Airlines
Wed 20/506:50
LHR
-
TYS
2 stops32h 52m
United Airlines
Deal found 24/2£531
Tue 3/316:04
TYS
-
LHR
1 stop10h 16m
British Airways
Tue 17/313:10
LHR
-
TYS
1 stop11h 47m
British Airways
Deal found 24/2£533
Tue 21/414:25
TYS
-
LHR
2 stops15h 55m
United Airlines
Wed 29/406:50
LHR
-
TYS
2 stops17h 52m
United Airlines
Deal found 26/2£534
Wed 2/912:00
TYS
-
LHR
2 stops13h 20m
Delta
Wed 9/906:15
LHR
-
TYS
2 stops17h 02m
Delta
Deal found 24/2£536
Tue 3/314:38
TYS
-
LHR
1 stop13h 22m
Scandinavian Airlines
Tue 10/313:00
LHR
-
TYS
1 stop12h 06m
Scandinavian Airlines
Deal found 24/2£536
Wed 2/910:00
TYS
-
LCY
2 stops17h 40m
Lufthansa
Wed 9/909:15
LCY
-
TYS
2 stops19h 42m
Lufthansa
Deal found 27/2£539
Tue 17/312:03
TYS
-
LCY
2 stops15h 12m
Delta
Tue 31/308:25
LCY
-
TYS
2 stops17h 41m
Delta
Deal found 24/2£542
Fri 1/507:10
TYS
-
LGW
1 stop18h 10m
Multiple Airlines
Wed 6/514:00
LGW
-
TYS
1 stop27h 24m
Multiple Airlines
Deal found 25/2£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 27 February 2026.

Round-trip from

£524

One-way from

£235

Popular in

June

Cheapest in

January

Average price

£509
Iberia
  • Iberia
  • 22/4-6/5
  • 3 total stops
  • 31h 27m total
  • Knoxville to London
Search Deals
28/3
  • 28/3
  • 2 total stops
  • 21h 05m total
  • Knoxville to London
Search Deals
Highest demand for flights based on searches. 25% potential increase in price (£157 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (£29 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 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 27 February 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

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Wed 6/5

14:25-06:55

1 stop11h 30m

London Heathrow

Wed 20/5

06:50-10:42

2 stops32h 52m

£531

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Tue 17/3

15:13-07:50

1 stop12h 37m

London Heathrow

Wed 1/4

06:30-16:43

2 stops15h 13m

£535

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Sun 23/8

10:00-10:40

1 stop19h 40m

London Heathrow

Wed 9/9

07:25-23:57

2 stops21h 32m

£535

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Tue 31/3

10:49-05:55

2 stops14h 06m

London Heathrow

Tue 7/4

07:30-19:42

2 stops17h 12m

£539

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Tue 14/4

07:50-07:10

1 stop18h 20m

London Heathrow

Tue 21/4

06:30-16:42

2 stops15h 12m

£542

KnoxvilleLondon

TYS - LCY

TYSLCY

Knoxville McGhee Tyson

Tue 17/3

12:03-07:15

2 stops15h 12m

London City

Tue 31/3

08:25-21:06

2 stops17h 41m

£542

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Tue 17/3

15:13-09:00

1 stop13h 47m

London Heathrow

Wed 1/4

12:25-23:03

1 stop15h 38m

£548

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Tue 17/3

09:40-05:55

2 stops16h 15m

London Heathrow

Tue 31/3

10:25-22:29

2 stops17h 04m

£555

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Wed 15/4

10:49-06:55

2 stops15h 06m

London Heathrow

Mon 20/4

06:50-19:42

2 stops17h 52m

£568

KnoxvilleLondon

TYS - LGW

TYSLGW

Knoxville McGhee Tyson

Sat 18/4

17:10-20:00

2 stops45h 50m

London Gatwick

Tue 5/5

20:40-20:18

2 stops28h 38m

£683

Flights are sorted by cheapest return flights first.

Deals found on 26/2

Showing 1-10 of 49 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 20 February 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 £398). Flying from Knoxville to London in June is currently the most expensive (average of £665). 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 36% 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 £516.

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 Chicago (ORD) offer the fastest connection on this route, with an average stopover time of 1h 35m.

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 11h 30m. 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 £398). Flying from Knoxville to London in June is currently the most expensive (average of £665). 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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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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