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Cheap flights from London to Knoxville from £403

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 4/9. Fares are subject to change and may not be available on all flights or dates of travel.
LON — TYS
15 Jul — 22 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from London to Knoxville

Enter your travel dates to find the best prices.

Cheapest flights from London to Knoxville
Explore the most affordable flight options available from London to Knoxville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 June 2026.

Sun 22/1107:30
LHR
-
TYS
2 stops16h 47m
Lufthansa
Tue 1/1214:00
TYS
-
LHR
2 stops17h 50m
Lufthansa
Deal found 14/6£637
Sat 21/1110:30
LHR
-
TYS
2 stops18h 07m
Lufthansa
Fri 27/1114:00
TYS
-
LHR
1 stop10h 55m
Lufthansa
Deal found 10/6£640
Thu 3/907:25
LHR
-
TYS
2 stops17h 59m
United Airlines
Mon 7/919:20
TYS
-
LHR
1 stop30h 35m
United Airlines
Deal found 13/6£648
Sat 21/1106:50
LHR
-
TYS
2 stops17h 27m
United Airlines
Fri 27/1110:16
TYS
-
LHR
2 stops15h 04m
United Airlines
Deal found 14/6£650
Fri 10/708:30
LHR
-
TYS
2 stops17h 14m
Lufthansa
Sat 18/719:19
TYS
-
LHR
1 stop10h 21m
Lufthansa
Deal found 12/6£660
Sun 22/1113:00
LHR
-
TYS
2 stops29h 18m
United Airlines
Tue 1/1219:35
TYS
-
LHR
1 stop10h 15m
United Airlines
Deal found 11/6£663
Sat 21/1107:40
LHR
-
TYS
1 stop14h 09m
Multiple Airlines
Fri 27/1114:20
TYS
-
LHR
1 stop11h 20m
Multiple Airlines
Deal found 14/6£663
Mon 27/714:00
LGW
-
TYS
1 stop14h 33m
Multiple Airlines
Mon 3/819:20
TYS
-
LGW
1 stop33h 40m
Multiple Airlines
Deal found 11/6£715
Mon 27/714:00
LGW
-
TYS
1 stop14h 33m
Multiple Airlines
Fri 7/818:29
TYS
-
LGW
1 stop34h 31m
Multiple Airlines
Deal found 11/6£719
Thu 17/917:00
LCY
-
TYS
2 stops29h 38m
British Airways
Mon 21/916:46
TYS
-
LCY
2 stops35h 14m
British Airways
Deal found 14/6£736
Sun 12/717:00
LGW
-
TYS
2 stops29h 16m
Air France
Sun 19/719:49
TYS
-
LGW
2 stops32h 51m
Air France
Deal found 10/6£758
Sun 12/720:45
LCY
-
TYS
2 stops49h 31m
KLM
Sun 19/715:54
TYS
-
LCY
2 stops34h 21m
KLM
Deal found 10/6£810

Find flight deals from London to Knoxville

Discover tips and strategies to find the most affordable flight options for your journey from London (LON) to Knoxville (TYS). 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 15 June 2026.

Round-trip from

£637

One-way from

£403

Popular in

March

Cheapest in

September

Average price

£737
Lufthansa
  • Lufthansa
  • 22/11-1/12
  • 4 total stops
  • 34h 37m total
  • London to Knoxville
Search Deals
4/9
  • 4/9
  • 2 total stops
  • 30h 36m total
  • London to Knoxville
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (£58 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£21 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from London to Knoxville 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 15 June 2026.
Use the filters below to find and compare flights from London to Knoxville that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Wed 16/9

07:25-22:49

2 stops20h 24m

Knoxville McGhee Tyson

Sun 20/9

05:45-05:55

2 stops19h 10m

£648

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Thu 3/9

07:25-20:24

2 stops17h 59m

Knoxville McGhee Tyson

Mon 7/9

19:20-06:55

1 stop30h 35m

£648

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Sun 22/11

07:30-19:17

2 stops16h 47m

Knoxville McGhee Tyson

Tue 1/12

14:00-12:50

2 stops17h 50m

£650

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Sat 21/11

06:50-19:17

2 stops17h 27m

Knoxville McGhee Tyson

Fri 27/11

10:16-06:20

2 stops15h 04m

£650

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Sun 22/11

13:00-13:18

2 stops29h 18m

Knoxville McGhee Tyson

Tue 1/12

19:35-10:50

1 stop10h 15m

£663

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Fri 10/7

08:40-20:34

2 stops16h 54m

Knoxville McGhee Tyson

Sat 18/7

10:18-08:20

2 stops17h 02m

£672
Fastest return journey

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Sat 21/11

09:10-19:17

2 stops15h 07m

Knoxville McGhee Tyson

Fri 27/11

14:20-08:25

2 stops13h 05m

£690

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Wed 1/7

16:40-23:54

1 stop12h 14m

Knoxville McGhee Tyson

Wed 15/7

10:18-08:30

1 stop17h 12m

£700

LondonKnoxville

LGW - TYS

LGWTYS

London Gatwick

Mon 27/7

14:00-23:33

1 stop14h 33m

Knoxville McGhee Tyson

Mon 3/8

19:20-10:00

1 stop33h 40m

£715

LondonKnoxville

LGW - TYS

LGWTYS

London Gatwick

Mon 27/7

14:00-23:33

1 stop14h 33m

Knoxville McGhee Tyson

Fri 7/8

18:29-10:00

1 stop34h 31m

£719

Flights are sorted by cheapest return flights first.

Deals found on 13/6

Showing 1-10 of 34 resultsSorted by cheapest first
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Best time to book a flight from London to Knoxville

Have a flexible travel schedule? Discover the best time to fly to Knoxville from London 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 London to Knoxville

What is the cheapest month to book a flight from London to Knoxville?

Currently, December is the cheapest month in which you can book a flight from London to Knoxville (average of £283). Flying from London to Knoxville in July is currently the most expensive (average of £637). 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 London to Knoxville?

What’s the top stopover airport for flights from London to Knoxville?

Share of one-stop return flights from London to Knoxville chosen by Cheapflights users in the past 12 months, using the same stopover each way.

Atlanta (ATL) – chosen by Cheapflights users on 34% of one-stop itineraries from London to Knoxville on Cheapflights.

What’s the cheapest stopover airport for flights from London to Knoxville?

Average return fare for one-stop flights from London to Knoxville, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

Philadelphia (PHL) is the most affordable one-stop option, with an average return flight price of £511.

What’s the fastest stopover option from London to Knoxville?

Shortest average travel time for one-stop one-way flights from London to Knoxville, 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: 12h 01m.

Which airport typically offers the quickest stopover for flights from London to Knoxville?

Average stopover duration for one-stop one-way flights from London to Knoxville, 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 11m.

Reviews of airlines servicing Knoxville

Get insights into the airlines that provide service to Knoxville. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Knoxville. Reviews last updated 15 June 2026.
Read through reviews of airlines operating flights from London to Knoxville, such as Finnair,Virgin Atlantic, andUnited Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Finnair
7.7
Good
1,408 reviews
Check prices

Entertainment

6.9

Crew

8.2

Overall

7.7

Boarding

7.7

Comfort

7.4

Food

6.7

Reviews

1 / 20
10.0
Excellent

Jake,Jun 2026

RNO - SEA

Our checked baggage was not transferred correctly so now we are stuck in Budapest with out essential luggage. We are not able to get much help from FinnAir because their service from Seattle is on periodic.
Finnair
7.7
Good
1,408 reviews
Finnair
7.7
Good
1,408 reviews
Check prices

Entertainment

6.9

Crew

8.2

Overall

7.7

Boarding

7.7

Comfort

7.4

Food

6.7

Reviews

1 / 20
10.0
Excellent

Jake,Jun 2026

RNO - SEA

Our checked baggage was not transferred correctly so now we are stuck in Budapest with out essential luggage. We are not able to get much help from FinnAir because their service from Seattle is on periodic.
Virgin Atlantic
7.5
Good
690 reviews
Finnair
7.7
Good
1,408 reviews
Check prices

Entertainment

6.9

Crew

8.2

Overall

7.7

Boarding

7.7

Comfort

7.4

Food

6.7

Reviews

1 / 20
10.0
Excellent

Jake,Jun 2026

RNO - SEA

Our checked baggage was not transferred correctly so now we are stuck in Budapest with out essential luggage. We are not able to get much help from FinnAir because their service from Seattle is on periodic.
United Airlines
7.4
Good
9,826 reviews
Finnair
7.7
Good
1,408 reviews
Check prices

Entertainment

6.9

Crew

8.2

Overall

7.7

Boarding

7.7

Comfort

7.4

Food

6.7

Reviews

1 / 20
10.0
Excellent

Jake,Jun 2026

RNO - SEA

Our checked baggage was not transferred correctly so now we are stuck in Budapest with out essential luggage. We are not able to get much help from FinnAir because their service from Seattle is on periodic.
Lufthansa
6.8
Okay
8,062 reviews
Finnair
7.7
Good
1,408 reviews
Check prices

Entertainment

6.9

Crew

8.2

Overall

7.7

Boarding

7.7

Comfort

7.4

Food

6.7

Reviews

1 / 20
10.0
Excellent

Jake,Jun 2026

RNO - SEA

Our checked baggage was not transferred correctly so now we are stuck in Budapest with out essential luggage. We are not able to get much help from FinnAir because their service from Seattle is on periodic.
British Airways
6.7
Okay
8,050 reviews
Finnair
7.7
Good
1,408 reviews
Check prices

Entertainment

6.9

Crew

8.2

Overall

7.7

Boarding

7.7

Comfort

7.4

Food

6.7

Reviews

1 / 20
10.0
Excellent

Jake,Jun 2026

RNO - SEA

Our checked baggage was not transferred correctly so now we are stuck in Budapest with out essential luggage. We are not able to get much help from FinnAir because their service from Seattle is on periodic.

Related info for your journey

Find useful and relevant information for your journey from London to Knoxville. 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 into for flights to Knoxville from London?

    If you book a flight to Knoxville from London, you will be flying to McGhee Tyson, which is the city’s only airport. Knoxville McGhee Tyson (TYS) is located 11.3 mi from the center of Knoxville. There are 0 flights from London to McGhee Tyson per day from 4 different airlines.

  • How long is the flight from London to Knoxville?

    There are many flights that can get you from London to Knoxville in 16h 47m. Fly via United Airlines, Lufthansa, or British Airways to get the fastest option. Airlines will cover a distance of 4076 mi. Both multi-stop and direct flights can be found to your destination and back.

  • What are the cheapest airlines flying from London to Knoxville round-trip?

    Flying on Lufthansa is currently your cheapest option to Knoxville, with prices starting at £456. Additional return tickets that might be worth considering are offered by United Airlines and British Airways, with the lowest prices starting at £467 and £473, respectively. Lufthansa is currently priced 37% below the average price you’ll pay for this route.

  • What are the most popular routes from London to Knoxville?

    The most popular flight routes from London to Knoxville are London Heathrow - Knoxville McGhee Tyson, London Gatwick - Knoxville McGhee Tyson and London City - Knoxville McGhee Tyson.

  • Can I find deals for flights from London to Knoxville that include hotel bookings?

    Yes. In addition to deals on London to Knoxville flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from London to Knoxville?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Knoxville.

  • Can I find deals for business class flights from London to Knoxville?

    Yes. Cheapflights offers flight deals from London to Knoxville 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 London to Knoxville?

    Currently, December is the cheapest month in which you can book a flight from London to Knoxville (average of £283). Flying from London to Knoxville in July is currently the most expensive (average of £637). 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

Travelling to a place near Knoxville?

Book flights to Knoxville if you plan to visit one of these locations
Cherokee

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Top 4 airlines flying from London to Knoxville

Discover the top 4 airlines that operate flights from London to Knoxville. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 15 June 2026.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest£456Average£801FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
United AirlinesCheapest£467Average£619FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
British AirwaysCheapest£473Average£685FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Virgin AtlanticCheapest£507Average£831FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from London to Knoxville?

Cheapflights helps you search for flights from London to Knoxville via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from London to Knoxville?

Cheapflights helps you find that perfect flight to Knoxville from London 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 London to Knoxville with no change fees?

Yes, we can. To see specific flights from London to Knoxville with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from London to Knoxville become cheaper?

Not ready to book yet? You can track prices for flights from London to Knoxville on Cheapflights with our Price Alert feature and get notified when better prices are available.

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