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Cheap flights from Knoxville to London from £276

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 1/8. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — LON
26 Aug — 2 Sep1
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 July 2026.

Fri 21/814:51
TYS
-
LGW
1 stop14h 09m
Multiple Airlines
Wed 26/814:00
LGW
-
TYS
1 stop27h 05m
Multiple Airlines
Deal found 23/7£515
Fri 16/1015:54
TYS
-
LGW
2 stops37h 06m
Multiple Airlines
Thu 29/1011:00
LGW
-
TYS
1 stop29h 14m
Multiple Airlines
Deal found 26/7£517
Fri 25/919:19
TYS
-
LGW
1 stop33h 41m
Multiple Airlines
Fri 2/1014:00
LGW
-
TYS
1 stop24h 37m
Multiple Airlines
Deal found 26/7£557
Sun 27/913:31
TYS
-
LGW
1 stop15h 29m
Multiple Airlines
Fri 2/1014:00
LGW
-
TYS
1 stop24h 37m
Multiple Airlines
Deal found 26/7£557
Sun 27/913:31
TYS
-
LGW
1 stop15h 29m
Multiple Airlines
Thu 1/1014:00
LGW
-
TYS
1 stop26h 59m
Multiple Airlines
Deal found 26/7£558
Sat 26/908:00
TYS
-
LGW
1 stop21h 00m
Multiple Airlines
Thu 1/1014:00
LGW
-
TYS
1 stop26h 59m
Multiple Airlines
Deal found 26/7£567
Fri 25/919:19
TYS
-
LGW
1 stop33h 41m
Multiple Airlines
Sat 3/1014:00
LGW
-
TYS
1 stop25h 40m
Multiple Airlines
Deal found 26/7£568
Sun 27/913:31
TYS
-
LGW
1 stop15h 29m
Multiple Airlines
Sat 3/1014:00
LGW
-
TYS
1 stop25h 40m
Multiple Airlines
Deal found 26/7£569
Sat 26/908:00
TYS
-
LGW
1 stop21h 00m
Multiple Airlines
Sat 3/1014:00
LGW
-
TYS
1 stop25h 40m
Multiple Airlines
Deal found 26/7£578
Wed 11/1114:40
TYS
-
LHR
1 stop12h 10m
Delta
Wed 18/1110:00
LHR
-
TYS
2 stops17h 22m
Delta
Deal found 27/7£663
Wed 11/1113:55
TYS
-
LHR
2 stops15h 50m
Lufthansa
Wed 18/1111:10
LHR
-
TYS
2 stops17h 49m
Lufthansa
Deal found 27/7£665
Tue 8/1216:03
TYS
-
LHR
2 stops12h 22m
Virgin Atlantic
Wed 16/1206:30
LHR
-
TYS
2 stops15h 54m
Virgin Atlantic
Deal found 26/7£666

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 July 2026.

Round-trip from

£515

One-way from

£276

Popular in

June

Cheapest in

March

Average price

£890
21/8-26/8
  • 21/8-26/8
  • 2 total stops
  • 41h 14m total
  • Knoxville to London
Search Deals
1/8
  • 1/8
  • 3 total stops
  • 58h 18m total
  • Knoxville to London
Search Deals
Highest demand for flights based on searches. 25% potential increase in price (£181 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£24 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 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 July 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

Fri 25/9

19:19-10:00

1 stop33h 41m

London Gatwick

Fri 2/10

14:00-09:37

1 stop24h 37m

£557

KnoxvilleLondon

TYS - LGW

TYSLGW

Knoxville McGhee Tyson

Mon 12/10

12:54-10:00

1 stop16h 06m

London Gatwick

Fri 16/10

14:00-09:37

1 stop24h 37m

£591

KnoxvilleLondon

TYS - LGW

TYSLGW

Knoxville McGhee Tyson

Fri 11/9

08:20-10:00

1 stop20h 40m

London Gatwick

Fri 18/9

14:00-15:01

2 stops30h 01m

£608

KnoxvilleLondon

TYS - LGW

TYSLGW

Knoxville McGhee Tyson

Fri 21/8

14:51-10:00

1 stop14h 09m

London Gatwick

Wed 26/8

14:00-13:49

2 stops28h 49m

£633

KnoxvilleLondon

TYS - LGW

TYSLGW

Knoxville McGhee Tyson

Sun 27/9

13:31-10:00

1 stop15h 29m

London Gatwick

Fri 2/10

15:40-13:02

2 stops26h 22m

£698

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Mon 12/10

06:00-10:00

2 stops23h 00m

London Heathrow

Sat 24/10

07:25-20:19

2 stops17h 54m

£704

KnoxvilleLondon

TYS - LGW

TYSLGW

Knoxville McGhee Tyson

Fri 25/9

14:08-09:25

2 stops14h 17m

London Gatwick

Fri 2/10

10:25-20:07

2 stops14h 42m

£709

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Fri 2/10

10:42-06:45

1 stop15h 03m

London Heathrow

Mon 12/10

17:55-17:08

2 stops28h 13m

£710

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Sun 13/12

12:34-07:50

1 stop14h 16m

London Heathrow

Thu 17/12

11:45-21:28

2 stops14h 43m

£713

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Tue 27/10

10:45-05:55

1 stop15h 10m

London Heathrow

Sat 31/10

06:50-20:54

2 stops18h 04m

£715

Flights are sorted by cheapest return flights first.

Deals found on 24/7

Showing 1-10 of 39 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, February is the cheapest month in which you can book a flight from Knoxville to London (average of £599). Flying from Knoxville to London in June is currently the most expensive (average of £1,145). 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?

Airfare is below average for this route at the moment.
Knoxville to London flights typically cost between £535 and £722 in August.
The cheapest return price found within the last 5 days was £515 on Multiple Airlines (21 Aug–26 Aug).

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 50% 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 £635.

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 12m.

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 38 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 14h 16m. 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, February is the cheapest month in which you can book a flight from Knoxville to London (average of £599). Flying from Knoxville to London in June is currently the most expensive (average of £1,145). 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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