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Cheap flights from London to Knoxville from £450

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 1/5. Fares are subject to change and may not be available on all flights or dates of travel.
LON — TYS
20 Dec — 27 Dec1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from London to Knoxville McGhee Tyson are usually found in February or November, booked 10 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 20 November 2025.

Round-trip from

£507

One-way from

£450

Popular in

July

Cheapest in

February

Average price

£591
11/1-16/1
  • 11/1-16/1
  • 2 total stops
  • 48h 23m total
  • London to Knoxville
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United Airlines
  • United Airlines
  • 1/5
  • 2 total stops
  • 30h 15m total
  • London to Knoxville
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (£54 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£12 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
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Find 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 20 November 2025.

Mon 24/1114:00LGW - TYS
1 stop13h 52mMultiple Airlines
Fri 28/1114:59TYS - LGW
1 stop14h 01mMultiple Airlines
Deal found 19/11£547
Mon 24/1114:00LGW - TYS
1 stop13h 52mMultiple Airlines
Thu 11/1217:12TYS - LGW
2 stops35h 48mMultiple Airlines
Deal found 19/11£592
Mon 24/1114:00LGW - TYS
1 stop13h 52mMultiple Airlines
Sun 7/1206:00TYS - LGW
2 stops23h 55mMultiple Airlines
Deal found 19/11£600
Tue 9/1208:55LHR - TYS
1 stop12h 58mVirgin Atlantic
Sun 14/1219:59TYS - LHR
1 stop29h 26mVirgin Atlantic
Deal found 19/11£616
Tue 9/1215:05LHR - TYS
2 stops34h 55mBritish Airways
Sun 14/1220:13TYS - LHR
1 stop30h 07mBritish Airways
Deal found 19/11£641
Fri 5/1207:40LHR - TYS
2 stops18h 13mBritish Airways
Mon 8/1215:40TYS - LHR
1 stop9h 55mBritish Airways
Deal found 19/11£645
Tue 9/1206:00LHR - TYS
3 stops35h 03mMultiple Airlines
Sun 14/1206:00TYS - LHR
1 stop20h 50mMultiple Airlines
Deal found 19/11£648
Fri 5/1211:45LHR - TYS
1 stop12h 10mAmerican Airlines
Mon 8/1214:58TYS - LHR
1 stop10h 57mAmerican Airlines
Deal found 18/11£650
Tue 9/1218:55LCY - TYS
2 stops31h 05mBritish Airways
Sun 14/1220:13TYS - LCY
2 stops31h 37mBritish Airways
Deal found 19/11£664
Mon 24/1114:00LGW - TYS
1 stop13h 52mMultiple Airlines
Sat 6/1210:15TYS - LGW
2 stops19h 40mMultiple Airlines
Deal found 19/11£665
Wed 26/1108:50LHR - TYS
2 stops17h 31mAer Lingus
Thu 4/1213:14TYS - LHR
2 stops13h 51mAer Lingus
Deal found 19/11£687
Sun 28/1216:35LHR - TYS
2 stops33h 08mBritish Airways
Mon 22/620:48TYS - LHR
1 stop10h 42mBritish Airways
Deal found 19/11£730

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 20 November 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 11/1

14:10-17:28

1 stop32h 18m

Knoxville McGhee Tyson

Fri 16/1

12:55-10:00

1 stop16h 05m

£507

LondonKnoxville

LGW - TYS

LGWTYS

London Gatwick

Fri 6/3

11:20-08:38

2 stops26h 18m

Knoxville McGhee Tyson

Tue 10/3

20:31-09:00

2 stops32h 29m

£610

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Thu 15/1

09:00-20:52

2 stops16h 52m

Knoxville McGhee Tyson

Tue 20/1

11:10-06:40

2 stops14h 30m

£614

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Thu 15/1

11:45-21:21

1 stop14h 36m

Knoxville McGhee Tyson

Tue 20/1

17:17-12:00

1 stop13h 43m

£623

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Tue 9/12

15:05-21:00

2 stops34h 55m

Knoxville McGhee Tyson

Sun 14/12

20:13-07:20

1 stop30h 07m

£641

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Fri 6/3

07:25-17:45

1 stop15h 20m

Knoxville McGhee Tyson

Tue 10/3

14:21-06:40

1 stop12h 19m

£642

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Fri 5/12

07:40-20:53

2 stops18h 13m

Knoxville McGhee Tyson

Mon 8/12

15:40-06:35

1 stop9h 55m

£645

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Tue 9/12

06:00-12:03

3 stops35h 03m

Knoxville McGhee Tyson

Sun 14/12

06:00-07:10

2 stops20h 10m

£648

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Fri 5/12

14:30-23:57

1 stop14h 27m

Knoxville McGhee Tyson

Mon 8/12

15:40-07:50

1 stop11h 10m

£648

LondonKnoxville

LCY - TYS

LCYTYS

London City

Thu 15/1

07:45-20:47

2 stops18h 02m

Knoxville McGhee Tyson

Tue 20/1

14:37-17:20

2 stops21h 43m

£658

Flights are sorted by cheapest return flights first.

Deals found on 19/11

Showing 1-10 of 30 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 14 November 2025.

The best time to book flights from London to Knoxville is 10 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, February is the cheapest month in which you can book a flight from London to Knoxville (average of £390). Flying from London to Knoxville in July is currently the most expensive (average of £573). 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 20 November 2025.

It’s optimal to fly from London to Knoxville in the evening. By choosing this option you can save up to 17% on the cost of your flight, compared to a flight in the morning.

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 36% 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 £575.

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: 11h 48m.

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 23m.

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 20 November 2025.
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
7.6
Good
1,334 reviews
Check prices

Crew

8.1

Entertainment

6.9

Boarding

7.6

Food

6.7

Comfort

7.4

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
Finnair
7.6
Good
1,334 reviews
Finnair
7.6
Good
1,334 reviews
Check prices

Crew

8.1

Entertainment

6.9

Boarding

7.6

Food

6.7

Comfort

7.4

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
Virgin Atlantic
7.5
Good
673 reviews
Finnair
7.6
Good
1,334 reviews
Check prices

Crew

8.1

Entertainment

6.9

Boarding

7.6

Food

6.7

Comfort

7.4

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
United Airlines
7.4
Good
9,027 reviews
Finnair
7.6
Good
1,334 reviews
Check prices

Crew

8.1

Entertainment

6.9

Boarding

7.6

Food

6.7

Comfort

7.4

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
Lufthansa
6.8
Okay
7,579 reviews
Finnair
7.6
Good
1,334 reviews
Check prices

Crew

8.1

Entertainment

6.9

Boarding

7.6

Food

6.7

Comfort

7.4

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
British Airways
6.7
Okay
7,533 reviews
Finnair
7.6
Good
1,334 reviews
Check prices

Crew

8.1

Entertainment

6.9

Boarding

7.6

Food

6.7

Comfort

7.4

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.

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.

  • How long is the flight from London to Knoxville?

    There are many flights that can get you from London to Knoxville in 14h 36m. Fly via American Airlines, United Airlines, 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 £468. Additional return tickets that might be worth considering are offered by British Airways and United Airlines, with the lowest prices starting at £487 and £492, respectively. Lufthansa is currently priced 29% 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 City - Knoxville McGhee Tyson and London Gatwick - 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, February is the cheapest month in which you can book a flight from London to Knoxville (average of £390). Flying from London to Knoxville in July is currently the most expensive (average of £573). 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
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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 20 November 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest£468Average£617FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
British AirwaysCheapest£487Average£616FlexibilityNo cancel feeOn-time70%
Search British Airways flights
United AirlinesCheapest£492Average£676FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
FinnairCheapest£510Average£633FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Virgin AtlanticCheapest£519Average£638FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
IberiaCheapest£577Average£1,008FlexibilityNo cancel feeOn-time77%
Search Iberia flights
American AirlinesCheapest£602Average£744FlexibilityNo cancel feeOn-time71%
Search American Airlines 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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