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Cheap flights from London to Knoxville from £399

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London to Knoxville departing on 15/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from London to Knoxville

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
14:00 - 12:06
LGW
-
TYS
27h 06m
2 stops
Multiple Airlines Logo
13:15 - 10:00
TYS
-
LGW
15h 45m
1 stop
£586Multiple Airlines
Fri, 17 Apr - Mon, 20 Apr
Multiple Airlines Logo
14:00 - 20:42
LGW
-
TYS
35h 42m
2 stops
Multiple Airlines Logo
13:15 - 10:00
TYS
-
LGW
15h 45m
1 stop
£589Multiple Airlines
Wed, 15 Apr - Mon, 20 Apr
Multiple Airlines Logo
14:00 - 14:45
LGW
-
TYS
29h 45m
2 stops
Multiple Airlines Logo
13:15 - 10:00
TYS
-
LGW
15h 45m
1 stop
£595Multiple Airlines
Wed, 15 Apr - Mon, 20 Apr
Lufthansa Logo
07:25 - 20:12
LHR
-
TYS
17h 47m
2 stops
Lufthansa Logo
18:01 - 11:55
TYS
-
LHR
12h 54m
1 stop
£634Lufthansa
Mon, 4 May - Mon, 11 May
British Airways Logo
13:10 - 21:23
LHR
-
TYS
13h 13m
1 stop
British Airways Logo
15:01 - 08:05
TYS
-
LHR
12h 04m
1 stop
£657British Airways
Tue, 1 Sep - Tue, 8 Sep
United Airlines Logo
08:40 - 20:45
LHR
-
TYS
17h 05m
2 stops
United Airlines Logo
09:50 - 11:55
TYS
-
LHR
21h 05m
2 stops
£661United Airlines
Mon, 4 May - Mon, 11 May
United Airlines Logo
08:45 - 20:45
LHR
-
TYS
17h 00m
2 stops
United Airlines Logo
14:25 - 10:40
TYS
-
LHR
15h 15m
1 stop
£663United Airlines
Tue, 5 May - Tue, 12 May
British Airways Logo
16:55 - 23:55
LHR
-
TYS
12h 00m
1 stop
British Airways Logo
14:49 - 06:50
TYS
-
LHR
11h 01m
1 stop
£668British Airways
Mon, 4 May - Mon, 11 May
Lufthansa Logo
07:25 - 19:42
LHR
-
TYS
17h 17m
2 stops
Lufthansa Logo
14:25 - 10:40
TYS
-
LHR
15h 15m
1 stop
£680Lufthansa
Sat, 25 Apr - Thu, 30 Apr
Delta Logo
08:25 - 21:20
LCY
-
TYS
17h 55m
2 stops
Delta Logo
13:59 - 09:30
TYS
-
LCY
14h 31m
2 stops
£728Delta
Tue, 5 May - Tue, 12 May

Aer Lingus flights from London to Knoxville

Our best Aer Lingus deals on London to Knoxville flight tickets
Aer Lingus
7 May
LCY06:45London City
18h 33m
2 stops
TYS20:18Knoxville McGhee Tyson
14 May
TYS07:53Knoxville McGhee Tyson
19h 42m
2 stops
LCY08:35London City
£880
Aer Lingus
17 Apr
LCY06:45London City
19h 36m
2 stops
TYS21:21Knoxville McGhee Tyson
24 Apr
TYS11:31Knoxville McGhee Tyson
19h 04m
2 stops
LCY11:35London City
£1,000

Lufthansa flights from London to Knoxville

Our best Lufthansa deals on London to Knoxville flight tickets
Lufthansa
4 May
LHR07:25London Heathrow
17h 47m
2 stops
TYS20:12Knoxville McGhee Tyson
11 May
TYS18:01Knoxville McGhee Tyson
12h 54m
1 stop
LHR11:55London Heathrow
£634
Lufthansa
25 Apr
LHR07:25London Heathrow
17h 17m
2 stops
TYS19:42Knoxville McGhee Tyson
30 Apr
TYS14:25Knoxville McGhee Tyson
15h 15m
1 stop
LHR10:40London Heathrow
£680
Lufthansa
18 May
LHR07:30London Heathrow
17h 42m
2 stops
TYS20:12Knoxville McGhee Tyson
3 Jun
TYS19:19Knoxville McGhee Tyson
10h 21m
1 stop
LHR10:40London Heathrow
£758

momondo 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, momondo users made 279,928 searches. Data last updated 24 March 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

LGW - TYS

LGWTYS

London Gatwick

Fri 17/4

14:00-12:06

2 stops27h 06m

Knoxville McGhee Tyson

Mon 20/4

13:15-10:00

1 stop15h 45m

£586

LondonKnoxville

LGW - TYS

LGWTYS

London Gatwick

Wed 15/4

14:00-20:42

2 stops35h 42m

Knoxville McGhee Tyson

Mon 20/4

13:15-10:00

1 stop15h 45m

£589

LondonKnoxville

LGW - TYS

LGWTYS

London Gatwick

Wed 15/4

14:00-14:45

2 stops29h 45m

Knoxville McGhee Tyson

Mon 20/4

13:15-10:00

1 stop15h 45m

£595

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Mon 4/5

07:25-20:12

2 stops17h 47m

Knoxville McGhee Tyson

Mon 11/5

18:01-11:55

1 stop12h 54m

£634

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Tue 1/9

13:10-21:23

1 stop13h 13m

Knoxville McGhee Tyson

Tue 8/9

15:01-08:05

1 stop12h 04m

£657

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Mon 4/5

08:40-20:45

2 stops17h 05m

Knoxville McGhee Tyson

Mon 11/5

09:50-11:55

2 stops21h 05m

£661

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Tue 5/5

08:45-20:45

2 stops17h 00m

Knoxville McGhee Tyson

Tue 12/5

14:25-10:40

1 stop15h 15m

£663
Fastest return journey

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Mon 4/5

16:55-23:55

1 stop12h 00m

Knoxville McGhee Tyson

Mon 11/5

14:49-06:50

1 stop11h 01m

£668

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Sat 25/4

07:25-19:42

2 stops17h 17m

Knoxville McGhee Tyson

Thu 30/4

14:25-10:40

1 stop15h 15m

£680

LondonKnoxville

LCY - TYS

LCYTYS

London City

Tue 5/5

08:25-21:20

2 stops17h 55m

Knoxville McGhee Tyson

Tue 12/5

13:59-09:30

2 stops14h 31m

£728

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Knoxville from

How to get the cheapest flight ticket from London to Knoxville

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between London and Knoxville?

What is the cheapest month to fly to Knoxville?

The month of February is, on average, the cheapest month to fly to Knoxville from London, with most prices found around £530. If you aren’t able to travel to Knoxville during the month of February, then flying in January is also cheap. Prices for this month can be found on momondo for an average of £568.

How far in advance should I book a flight to Knoxville?

You are more likely to see cheaper flights to Knoxville from London when booking weeks ahead of your departure date. In general, you can expect to find flights to Knoxville for around £724 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Knoxville from London for as low as £508 on momondo.

Can stopping save me money on London to Knoxville flights?

You could potentially save up to 23% on your flight if you consider stops on a London to Knoxville flight.

How have London to Knoxville flight prices changed over time?

As of March 2026, prices for London to Knoxville flights are approximately 22% cheaper when compared to flights at the same time last year.

When to book flights from London to Knoxville

Are you open to changing your travel dates? Check out the ideal times to fly from London to Knoxville according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap London to Knoxville (LON to TYS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London to Knoxville

Fastest flight time

12h 15m

Direct flights

None
The fastest flight from London to Knoxville takes 12h 15m
There are no direct flights from London to Knoxville. There are no popular flight routes from London to Knoxville.
Search flight deals

  • How far is London to Knoxville McGhee Tyson by plane?

    There are 4078.3 mi between London and Knoxville McGhee Tyson. Flights usually cover this in 12h 15m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from London to Knoxville McGhee Tyson Airport?

    Prices for flights from London to Knoxville McGhee Tyson Airport were last updated today.

  • How many operators does momondo search for flights from London to Knoxville McGhee Tyson Airport?

  • How old do you have to be to fly from London to Knoxville McGhee Tyson Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London to Knoxville McGhee Tyson Airport.

  • What documentation or ID do you need to fly to Knoxville McGhee Tyson Airport?

    The travel and health documents you'll need for your trip to Knoxville McGhee Tyson Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Knoxville McGhee Tyson Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from London to Knoxville?

Best airlines flying from London to Knoxville

Compare and see reviews for airlines that fly from London to Knoxville with momondo
Airline
Rating
Free Cancellation
Price
LufthansaPriceFrom £458Free CancellationRating
6.8
7,863 reviews
Search Lufthansa flights
United AirlinesPriceFrom £468Free CancellationRating
7.4
9,463 reviews
Search United Airlines flights
British AirwaysPriceFrom £477Free CancellationRating
6.7
7,813 reviews
Search British Airways flights
Virgin AtlanticPriceFrom £512Free CancellationRating
7.5
685 reviews
Search Virgin Atlantic flights
FinnairPriceFrom £517Free CancellationRating
7.7
1,374 reviews
Search Finnair flights

Travelling to a place near Knoxville?

Book flights to Knoxville if you plan to visit one of these locations
Pigeon Forge
Gatlinburg
Newport

Why use momondo?

Why should I use momondo to find a flight deal from London to Knoxville?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from London to Knoxville. momondo saves you time and could save you money on your trip.

Can I find flights from London to Knoxville with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Knoxville from London with this policy.

How can momondo help me find flights from London to Knoxville?

Once all potential London to Knoxville flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from London to Knoxville right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Knoxville from London. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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