Cheap flights from London to Knoxville from £278

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 20/11. Fares are subject to change and may not be available on all flights or dates of travel.
LON — TYS
10 Dec — 17 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 10 November 2025.

Round-trip from

£576

One-way from

£278

Popular in

July

Cheapest in

February

Average price

£582
United Airlines
  • United Airlines
  • 10/12-17/12
  • 3 total stops
  • 36h 59m total
  • London to Knoxville
20/11
  • 20/11
  • 1 total stop
  • 36h 30m total
  • London to Knoxville
Highest demand for flights based on searches. 9% potential increase in price (£54 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (£13 potential savings vs. average return price).
Average for round-trip flights in November 2025

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 10 November 2025.

Wed 10/1209:00LHR - TYS
2 stops17h 04mUnited Airlines
Wed 17/1207:00TYS - LHR
1 stop19h 55mUnited Airlines
Deal found 9/11£576
Wed 10/1212:35LHR - TYS
1 stop14h 05mBritish Airways
Wed 17/1215:39TYS - LHR
1 stop11h 11mBritish Airways
Deal found 9/11£601
Wed 10/1206:30LHR - TYS
2 stops17h 28mDelta
Wed 17/1211:26TYS - LHR
2 stops14h 39mDelta
Deal found 9/11£611
Wed 26/1110:45LHR - TYS
1 stop14h 21mVirgin Atlantic
Thu 4/1214:37TYS - LHR
1 stop10h 48mVirgin Atlantic
Deal found 10/11£613
Wed 26/1106:45LHR - TYS
2 stops19h 18mBritish Airways
Thu 4/1217:51TYS - LHR
1 stop10h 24mBritish Airways
Deal found 10/11£615
Wed 26/1106:30LHR - TYS
2 stops18h 36mDelta
Thu 4/1210:23TYS - LHR
2 stops15h 42mDelta
Deal found 10/11£626
Wed 26/1108:40LCY - TYS
2 stops17h 23mBritish Airways
Thu 4/1207:38TYS - LCY
2 stops25h 12mBritish Airways
Deal found 10/11£668
Sat 22/1117:00LHR - TYS
2 stops35h 41mScandinavian Airlines
Sat 17/116:45TYS - LHR
2 stops18h 15mScandinavian Airlines
Deal found 9/11£676
Sat 22/1120:35LHR - TYS
2 stops30h 28mMultiple Airlines
Sat 29/1112:35TYS - LHR
2 stops17h 15mMultiple Airlines
Deal found 9/11£684
Mon 17/1112:10LHR - TYS
2 stops34h 36mAer Lingus
Sat 6/1208:06TYS - LHR
2 stops18h 59mAer Lingus
Deal found 9/11£706
Thu 20/1108:50LHR - TYS
2 stops17h 31mAer Lingus
Mon 8/1214:58TYS - LHR
2 stops15h 27mAer Lingus
Deal found 9/11£716
Sat 22/1113:25LGW - TYS
3 stops37h 38mMultiple Airlines
Sat 29/1112:35TYS - LGW
2 stops16h 15mMultiple Airlines
Deal found 9/11£862

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 10 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

LHR - TYS

LHRTYS

London Heathrow

Wed 10/12

12:35-21:40

1 stop14h 05m

Knoxville McGhee Tyson

Wed 17/12

15:39-07:50

1 stop11h 11m

£601

LondonKnoxville

LGW - TYS

LGWTYS

London Gatwick

Fri 6/3

11:20-11:12

2 stops28h 52m

Knoxville McGhee Tyson

Tue 10/3

20:31-09:00

2 stops32h 29m

£607

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Wed 10/12

06:30-18:58

2 stops17h 28m

Knoxville McGhee Tyson

Wed 17/12

11:26-07:05

2 stops14h 39m

£611

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Fri 6/3

07:40-19:04

2 stops16h 24m

Knoxville McGhee Tyson

Tue 10/3

13:53-05:55

1 stop12h 02m

£615

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Wed 26/11

06:45-21:03

2 stops19h 18m

Knoxville McGhee Tyson

Thu 4/12

17:51-09:15

1 stop10h 24m

£615

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Wed 26/11

06:30-20:06

2 stops18h 36m

Knoxville McGhee Tyson

Thu 4/12

10:23-07:05

2 stops15h 42m

£626

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Sat 25/4

09:15-17:35

1 stop13h 20m

Knoxville McGhee Tyson

Sun 3/5

20:44-12:30

1 stop10h 46m

£661

LondonKnoxville

LCY - TYS

LCYTYS

London City

Wed 26/11

08:40-21:03

2 stops17h 23m

Knoxville McGhee Tyson

Thu 4/12

07:38-13:50

2 stops25h 12m

£668

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Sat 22/11

17:00-23:41

2 stops35h 41m

Knoxville McGhee Tyson

Sat 17/1

16:45-16:00

2 stops18h 15m

£676

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Sat 25/4

06:55-19:31

2 stops17h 36m

Knoxville McGhee Tyson

Sun 3/5

14:00-16:40

2 stops21h 40m

£679

Flights are sorted by cheapest return flights first.

Deals found on 8/11

Showing 1-10 of 23 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 7 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 £388). Flying from London to Knoxville in July is currently the most expensive (average of £570). 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 10 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 £572.

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 10 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.

Boarding

7.6

Comfort

7.4

Food

6.7

Overall

7.6

Crew

8.1

Entertainment

6.9

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.

Boarding

7.6

Comfort

7.4

Food

6.7

Overall

7.6

Crew

8.1

Entertainment

6.9

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.

Boarding

7.6

Comfort

7.4

Food

6.7

Overall

7.6

Crew

8.1

Entertainment

6.9

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.

Boarding

7.6

Comfort

7.4

Food

6.7

Overall

7.6

Crew

8.1

Entertainment

6.9

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.

Boarding

7.6

Comfort

7.4

Food

6.7

Overall

7.6

Crew

8.1

Entertainment

6.9

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.

Boarding

7.6

Comfort

7.4

Food

6.7

Overall

7.6

Crew

8.1

Entertainment

6.9

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 05m. Fly via British Airways, American Airlines, or Delta 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 £466. Additional return tickets that might be worth considering are offered by British Airways and United Airlines, with the lowest prices starting at £485 and £490, 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?

  • 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 £388). Flying from London to Knoxville in July is currently the most expensive (average of £570). 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 10 November 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest£466Average£614FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
British AirwaysCheapest£485Average£614FlexibilityNo cancel feeOn-time70%
Search British Airways flights
United AirlinesCheapest£490Average£673FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
FinnairCheapest£507Average£630FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Virgin AtlanticCheapest£517Average£635FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
IberiaCheapest£575Average£1,003FlexibilityNo cancel feeOn-time77%
Search Iberia flights
American AirlinesCheapest£599Average£740FlexibilityNo cancel feeOn-time71%
Search American Airlines flights

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