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Cheap flights from London to Knoxville from £437

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 21/9. Fares are subject to change and may not be available on all flights or dates of travel.
LON — TYS
2 Jul — 9 Jul1
1 adult

Cheapflights Tip: The best prices from London to Knoxville McGhee Tyson are usually found in February or January, booked 80 days in advance, depart on a Monday or Tuesday and return on a Tuesday

Cheap 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 27 June 2025.

Round-trip from

£437

Popular in

August

Cheapest in

February

Average price

£692
21/9-29/9
  • 21/9-29/9
  • 2 total stops
  • 48h 12m total
  • London to Knoxville
Highest demand for flights based on searches. 15% potential increase in price (£90 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease (£19 potential savings vs. average return price).
Average for round-trip flights in June 2025

Find flight deals from London to Knoxville

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 27 June 2025.

Sun 21/914:00LGW - TYS
1 stop32h 34mMultiple Airlines
Mon 29/913:22TYS - LGW
1 stop15h 38mMultiple Airlines
Deal found 26/6£437
Tue 11/1108:55LHR - TYS
2 stops16h 25mUnited Airlines
Tue 16/1207:00TYS - LHR
1 stop22h 15mUnited Airlines
Deal found 26/6£475
Wed 17/907:25LHR - TYS
2 stops21h 32mLufthansa
Tue 30/919:26TYS - LHR
1 stop10h 14mLufthansa
Deal found 25/6£477
Tue 11/1112:35LHR - TYS
1 stop13h 56mBritish Airways
Tue 16/1211:45TYS - LHR
1 stop14h 05mBritish Airways
Deal found 26/6£495
Tue 23/908:40LHR - TYS
2 stops17h 52mDelta
Mon 29/911:30TYS - LHR
2 stops15h 35mDelta
Deal found 25/6£505
Sun 21/908:30LHR - TYS
2 stops35h 10mAir Canada
Tue 30/919:26TYS - LHR
2 stops30h 04mAir Canada
Deal found 25/6£506
Tue 23/911:00LHR - TYS
1 stop12h 50mAmerican Airlines
Thu 25/920:31TYS - LHR
1 stop30h 09mAmerican Airlines
Deal found 25/6£546
Thu 4/1209:20LCY - TYS
2 stops18h 39mDelta
Mon 8/1219:15TYS - LCY
2 stops16h 20mDelta
Deal found 24/6£568
Tue 2/919:30LHR - TYS
2 stops33h 18mScandinavian Airlines
Fri 5/916:19TYS - LHR
2 stops36h 01mScandinavian Airlines
Deal found 25/6£638
Tue 16/911:10LHR - TYS
1 stop29h 45mMultiple Airlines
Fri 19/919:00TYS - LHR
2 stops20h 20mMultiple Airlines
Deal found 25/6£664
Sat 12/709:20LHR - TYS
1 stop19h 39mVirgin Atlantic
Wed 12/1116:00TYS - LHR
1 stop14h 40mVirgin Atlantic
Deal found 25/6£750
Fri 11/707:00LCY - TYS
2 stops15h 33mBritish Airways
Sat 19/710:53TYS - LCY
2 stops20h 47mBritish Airways
Deal found 25/6£804

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 27 June 2025.
Use the filters below to find and compare flights from London to Knoxville that are best for you.

Fly from

London

Fly to

Knoxville

Route

Depart

Return

Price

LondonKnoxville

LGW - TYS

LGWTYS

London Gatwick

Sun 21/9

14:00-17:34

1 stop32h 34m

Knoxville McGhee Tyson

Mon 29/9

13:22-10:00

1 stop15h 38m

£437

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Tue 11/11

08:55-20:20

2 stops16h 25m

Knoxville McGhee Tyson

Tue 16/12

07:00-10:15

1 stop22h 15m

£475

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Wed 17/9

07:25-23:57

2 stops21h 32m

Knoxville McGhee Tyson

Tue 30/9

19:26-10:40

1 stop10h 14m

£477

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Tue 11/11

12:35-21:31

1 stop13h 56m

Knoxville McGhee Tyson

Tue 16/12

11:45-06:50

1 stop14h 05m

£495

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Sat 20/9

14:10-22:35

1 stop13h 25m

Knoxville McGhee Tyson

Sat 27/9

19:26-10:40

1 stop10h 14m

£501

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Tue 23/9

08:40-21:32

2 stops17h 52m

Knoxville McGhee Tyson

Mon 29/9

11:30-08:05

2 stops15h 35m

£505

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Sun 21/9

08:30-14:40

2 stops35h 10m

Knoxville McGhee Tyson

Tue 30/9

19:26-06:30

2 stops30h 04m

£506

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Tue 23/9

11:00-18:50

1 stop12h 50m

Knoxville McGhee Tyson

Thu 25/9

20:31-07:40

1 stop30h 09m

£546

LondonKnoxville

LCY - TYS

LCYTYS

London City

Thu 4/12

10:00-23:46

2 stops18h 46m

Knoxville McGhee Tyson

Mon 8/12

07:30-08:50

2 stops20h 20m

£568

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Tue 2/9

19:30-23:48

2 stops33h 18m

Knoxville McGhee Tyson

Fri 5/9

16:19-09:20

2 stops36h 01m

£638

Flights are sorted by cheapest return flights first.

Deals found on 26/6

Showing 1-10 of 21 results
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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

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

Use this chart to determine the optimal time to book a return flight from London to Knoxville. Price data was last updated on 20 June 2025.

The best time to book flights from London to Knoxville is 80 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, November is the cheapest month in which you can book a flight from London to Knoxville (average of £720). Flying from London to Knoxville in July is currently the most expensive (average of £1,115). 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.

What is the cheapest time of day to fly from LON to TYS?

Find hourly flight availability from London to Knoxville. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 27 June 2025.

It’s optimal to fly from London to Knoxville in the evening. By choosing this option you can save up to 12% on the cost of your flight, compared to a flight in the morning.

What is the cheapest day to fly from London to Knoxville?

Use this chart to determine the cheapest time to fly return from London to Knoxville. Price data was last updated on 13 October 2024.

Travellers seeking maximum savings on their London to Knoxville flight should consider departing on Monday afternoons when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost for a return flight from London to Knoxville?

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 27 June 2025.
Read through reviews of airlines operating flights from London to Knoxville, such as Delta, KLM, andFinnair. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
8.0
Very Good

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 7 different airlines.

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

    Flying on United Airlines is currently your cheapest option to Knoxville, with prices starting at £475. Additional return tickets that might be worth considering are offered by Lufthansa and British Airways, with the lowest prices starting at £477 and £495, respectively. United Airlines is currently priced 28% below the average price you’ll pay for this route.

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

  • 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, November is the cheapest month in which you can book a flight from London to Knoxville (average of £720). Flying from London to Knoxville in July is currently the most expensive (average of £1,115). 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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Top 7 airlines flying from London to Knoxville

Discover the top 7 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 27 June 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest£482Average£619FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
British AirwaysCheapest£496Average£624FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Virgin AtlanticCheapest£498Average£619FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
FinnairCheapest£502Average£601FlexibilityNo cancel feeOn-time76%
Search Finnair flights
United AirlinesCheapest£529Average£689FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
IberiaCheapest£551Average£962FlexibilityNo cancel feeOn-time77%
Search Iberia flights
American AirlinesCheapest£575Average£710FlexibilityNo cancel feeOn-time71%
Search American Airlines flights

Fly with Cheapflights

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

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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.

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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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