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Cheap flights from Knoxville to London from £254

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 15/9. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — LON
26 Jun — 3 Jul1
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 May 2026.

Mon 17/807:30
TYS
-
LGW
2 stops21h 30m
Multiple Airlines
Sun 23/814:00
LGW
-
TYS
1 stop34h 05m
Multiple Airlines
Deal found 25/5£554
Fri 10/719:20
TYS
-
LGW
1 stop33h 40m
Multiple Airlines
Mon 13/714:00
LGW
-
TYS
1 stop14h 33m
Multiple Airlines
Deal found 24/5£620
Mon 6/719:20
TYS
-
LGW
1 stop33h 40m
Multiple Airlines
Mon 13/714:00
LGW
-
TYS
1 stop14h 33m
Multiple Airlines
Deal found 24/5£626
Mon 1/619:24
TYS
-
LGW
1 stop33h 36m
Multiple Airlines
Mon 8/614:00
LGW
-
TYS
1 stop14h 39m
Multiple Airlines
Deal found 27/5£630
Mon 9/1117:57
TYS
-
LHR
2 stops19h 33m
Scandinavian Airlines
Wed 18/1106:40
LHR
-
TYS
2 stops20h 05m
Scandinavian Airlines
Deal found 26/5£631
Mon 30/1115:55
TYS
-
LHR
2 stops24h 45m
Scandinavian Airlines
Fri 11/1206:40
LHR
-
TYS
2 stops22h 06m
Scandinavian Airlines
Deal found 27/5£650
Fri 2/1019:20
TYS
-
LHR
1 stop30h 35m
United Airlines
Mon 5/1006:50
LHR
-
TYS
2 stops18h 34m
United Airlines
Deal found 27/5£654
Mon 30/1115:55
TYS
-
LHR
2 stops19h 05m
Scandinavian Airlines
Wed 9/1206:40
LHR
-
TYS
3 stops22h 06m
Scandinavian Airlines
Deal found 23/5£659
Mon 30/1115:55
TYS
-
LHR
2 stops21h 35m
Scandinavian Airlines
Thu 10/1221:05
LHR
-
TYS
3 stops29h 40m
Scandinavian Airlines
Deal found 27/5£659
Mon 9/1114:00
TYS
-
LHR
1 stop10h 55m
Lufthansa
Wed 18/1106:35
LHR
-
TYS
2 stops17h 42m
Lufthansa
Deal found 26/5£660
Wed 7/1009:45
TYS
-
LHR
1 stop16h 10m
Lufthansa
Tue 13/1010:50
LHR
-
TYS
2 stops18h 05m
Lufthansa
Deal found 27/5£661
Mon 6/722:05
TYS
-
LGW
1 stop30h 55m
Multiple Airlines
Wed 22/713:05
LGW
-
TYS
2 stops28h 57m
Multiple Airlines
Deal found 26/5£665

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 May 2026.

Round-trip from

£554

One-way from

£254

Popular in

June

Cheapest in

January

Average price

£806
17/8-23/8
  • 17/8-23/8
  • 3 total stops
  • 55h 35m total
  • Knoxville to London
Search Deals
British Airways
  • British Airways
  • 15/9
  • 1 total stop
  • 20h 29m total
  • Knoxville to London
Search Deals
Highest demand for flights based on searches. 27% potential increase in price (£181 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 May 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 May 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 - LHR

TYSLHR

Knoxville McGhee Tyson

Wed 2/9

18:15-13:05

1 stop13h 50m

London Heathrow

Wed 9/9

06:30-18:17

2 stops16h 47m

£672

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Mon 14/9

12:00-06:20

2 stops13h 20m

London Heathrow

Wed 23/9

11:45-23:50

2 stops17h 05m

£676

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Tue 8/9

17:57-13:05

2 stops14h 08m

London Heathrow

Tue 15/9

11:45-23:50

2 stops17h 05m

£676

KnoxvilleLondon

TYS - LGW

TYSLGW

Knoxville McGhee Tyson

Wed 17/6

14:19-10:00

1 stop14h 41m

London Gatwick

Mon 29/6

14:00-23:34

1 stop14h 34m

£680

KnoxvilleLondon

TYS - LGW

TYSLGW

Knoxville McGhee Tyson

Sat 6/6

07:10-09:45

2 stops45h 35m

London Gatwick

Fri 12/6

14:00-23:34

1 stop14h 34m

£685

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Mon 17/8

16:38-09:20

2 stops35h 42m

London Heathrow

Thu 27/8

17:00-23:52

2 stops35h 52m

£686

KnoxvilleLondon

TYS - LGW

TYSLGW

Knoxville McGhee Tyson

Thu 11/6

07:15-10:45

2 stops22h 30m

London Gatwick

Fri 12/6

14:00-23:34

1 stop14h 34m

£692

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Fri 11/9

08:47-06:25

1 stop16h 38m

London Heathrow

Wed 16/9

08:40-20:07

2 stops16h 27m

£709
Fastest return journey

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Tue 18/8

18:12-11:20

1 stop12h 08m

London Heathrow

Tue 25/8

09:55-21:34

2 stops16h 39m

£717

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Wed 12/8

18:12-13:15

1 stop14h 03m

London Heathrow

Fri 21/8

09:55-20:03

2 stops15h 08m

£717

Flights are sorted by cheapest return flights first.

Deals found on 24/5

Showing 1-10 of 60 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

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 £267). Flying from Knoxville to London in June is currently the most expensive (average of £831). 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 57% 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.

Charlotte (CLT) is the most affordable one-stop option, with an average return flight price of £628.

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 Washington, D.C. (IAD) have the shortest average one-way travel time for one-stop routes: 10h 21m.

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.

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

To ensure you get the cheapest price possible for a flight from Knoxville to London, you should look to book at least 65 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.

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 20m. 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 £267). Flying from Knoxville to London in June is currently the most expensive (average of £831). 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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