Cheap flights from Knoxville to London from £251
This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 15/3. Fares are subject to change and may not be available on all flights or dates of travel.
Cheap flight deals from Knoxville to London
Cheapest flights from Knoxville to LondonExplore 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 10 October 2026.
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 10 October 2026.
Best flights from Knoxville to LondonDiscover carefully curated flight deals from Knoxville to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 10 October 2026.
Discover carefully curated flight deals from Knoxville to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 10 October 2026.
Last-minute flights from Knoxville to LondonDiscover last-minute flight deals from Knoxville to London. Data last updated 10 October 2026 and is based on user searches.
Discover last-minute flight deals from Knoxville to London. Data last updated 10 October 2026 and is based on user searches.
One-way flights from Knoxville to LondonSearch for one-way flight options from Knoxville to London. Find affordable one-way fares based on user searches. Data last updated 10 October 2026.
Search for one-way flight options from Knoxville to London. Find affordable one-way fares based on user searches. Data last updated 10 October 2026.
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 10 October 2026.
Cheapflights Fare Finder
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
KnoxvilleLondon
TYS Knoxville McGhee Tyson - LHR London Heathrow
TYSLHR
Knoxville McGhee Tyson
Mon 15/3
14:00-10:25
2 stops16h 25m
London Heathrow
Wed 31/12
00:00-18:00
Nonstop0h 00m
KnoxvilleLondon
TYS Knoxville McGhee Tyson - LHR London Heathrow
TYSLHR
Knoxville McGhee Tyson
Mon 15/3
16:41-07:20
1 stop10h 39m
London Heathrow
Wed 31/12
00:00-18:00
Nonstop0h 00m
KnoxvilleLondon
TYS Knoxville McGhee Tyson - LHR London Heathrow
TYSLHR
Knoxville McGhee Tyson
Mon 19/10
17:07-13:30
2 stops15h 23m
London Heathrow
Wed 31/12
00:00-18:00
Nonstop0h 00m
KnoxvilleLondon
TYS Knoxville McGhee Tyson - LHR London Heathrow
TYSLHR
Knoxville McGhee Tyson
Sun 1/11
07:30-21:05
3 stops32h 35m
London Heathrow
Wed 31/12
00:00-18:00
Nonstop0h 00m
KnoxvilleLondon
TYS Knoxville McGhee Tyson - LHR London Heathrow
TYSLHR
Knoxville McGhee Tyson
Sun 18/10
18:06-12:10
1 stop13h 04m
London Heathrow
Wed 31/12
00:00-18:00
Nonstop0h 00m
KnoxvilleLondon
TYS Knoxville McGhee Tyson - LHR London Heathrow
TYSLHR
Knoxville McGhee Tyson
Wed 28/10
11:19-08:25
1 stop17h 06m
London Heathrow
Wed 31/12
00:00-18:00
Nonstop0h 00m
KnoxvilleLondon
TYS Knoxville McGhee Tyson - LHR London Heathrow
TYSLHR
Knoxville McGhee Tyson
Sun 21/2
14:20-10:05
2 stops14h 45m
London Heathrow
Wed 24/2
06:50-19:17
2 stops17h 27m
KnoxvilleLondon
TYS Knoxville McGhee Tyson - LHR London Heathrow
TYSLHR
Knoxville McGhee Tyson
Wed 11/11
13:56-05:55
1 stop10h 59m
London Heathrow
Tue 24/11
06:50-16:59
2 stops15h 09m
KnoxvilleLondon
TYS Knoxville McGhee Tyson - LHR London Heathrow
TYSLHR
Knoxville McGhee Tyson
Thu 18/2
12:11-08:25
1 stop15h 14m
London Heathrow
Tue 23/2
09:00-23:59
2 stops19h 59m
KnoxvilleLondon
TYS Knoxville McGhee Tyson - LHR London Heathrow
TYSLHR
Knoxville McGhee Tyson
Thu 11/2
06:15-07:10
3 stops19h 55m
London Heathrow
Tue 16/2
06:50-16:48
2 stops14h 58m
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.
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 £604). Flying from Knoxville to London in June is currently the most expensive (average of £1,149). 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 £729 and £947 in February.The cheapest return price found within the last 5 days was £576 on United Airlines (21 Feb–24 Feb).
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 53% 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 £639.
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.
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.
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Alternative routes for Knoxville to London
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to London by adding a car hire and/or hotel booking to your travel itinerary.
Direct flights to England
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Other flights to London
Explore flights to London departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 10 October 2026.
Knoxville and London flights
Browse other Knoxville and London flight options. Last updated on 10 October 2026.
Popular flight searches
Check out other popular destinations found by fellow travellers in 2026
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How does Cheapflights help users find flights from Knoxville to London?
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Why should you use Cheapflights to find cheap flight tickets from Knoxville to London?
Cheapflights helps you find that perfect flight to London from Knoxville by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!
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.
Can Cheapflights notify me if prices for flights from Knoxville to London become cheaper?
Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!