Are direct flights from Knoxville to London always the best option?

Direct flights offer convenience by minimizing travel time and avoiding layovers. However, they are not always the most budget-friendly choice. Flights with one or more stops can sometimes be considerably cheaper, depending on the route and demand.

Can flexible travel dates help on Knoxville to London flights?

Absolutely, being flexible with your travel dates can significantly impact flight prices. Mid-week travel or flying during off-peak seasons often results in lower fares compared to weekends or popular holiday periods. Even shifting your departure or return by a day or two can make a difference.

What extra costs should I check before booking Knoxville to London flights?

Always review potential extra costs such as baggage fees, seat selection charges, and in-flight services. Some airlines may also charge for printing boarding passes at the airport. Factor these into your total budget to avoid surprises.

Flights From Knoxville

To London

Cheap Flights from Knoxville to London

Browse current best options from Knoxville. Become a member to unlock all deals and get alerts when new deals appear.

Deals from

Knoxville

RatePunk searches hundreds of travel sites at once for deals on flights to London

Prices updated 2 days ago

461 airlines compared

80%+ AI score for best value

Fares are subject to change and may not be available for all dates. (Data last updated Sep 14, 2026.)

Today’s best flight deals from Knoxville to London

Explore current cheapest deals departing from Knoxville to London

2026-09-21 – 2026-10-06
TYS - London
77% AI deal score
$859
$755
Round trip
2026-11-03 – 2026-11-13
TYS - London
76% AI deal score
$750
$757
Round trip
2026-10-28 – 2026-11-04
TYS - London
76% AI deal score
$807
$758
Round trip
2026-11-02 – 2026-11-11
TYS - London
73% AI deal score
$756
$758
Round trip
2026-11-18 – 2026-11-26
TYS - London
74% AI deal score
$769
$758
Round trip
2026-10-23 – 2026-10-30
TYS - London
76% AI deal score
$820
$763
Round trip
2027-01-12 – 2027-01-19
TYS - London
83% AI deal score
$900
$765
Round trip
2026-09-29 – 2026-10-06
TYS - London
78% AI deal score
$873
$765
Round trip
2026-10-12 – 2026-10-22
TYS - London
74% AI deal score
$778
$765
Round trip
2026-10-12 – 2026-10-23
TYS - London
74% AI deal score
$776
$765
Round trip

Knoxville to London: Overview

Insights for flights from Knoxville to London

Right now, only 1% of recent fares from Knoxville to London are classified as a good price. Fares for this route typically range from $853 to $1195, with a median price of $1030. Current fares are above the typical level, indicating that prices are higher than usual for this route. New deals for flights from Knoxville to London appear almost daily, so setting up a price alert can help you find better options.

A typical journey from Knoxville to London takes about 26h 38m, including connections. This is a long-haul route, covering a distance of 6593 kilometers. Given that most itineraries connect at least once, with a median of 2 stopovers when connecting, the total travel time reflects these layovers.

Most itineraries for flights from Knoxville to London connect at least once, with 0% of recent fares being non-stop. When connecting, the median number of stopovers is 2. This means you should expect to include at least two stops in your travel plans when flying this route.

If you are looking for the cheapest time to fly from Knoxville to London, the data indicates that January is typically the most affordable month, with a median fare of $490. Following closely, March also offers competitive prices with a median of $602, and April presents a median fare of $730. These months generally provide more budget-friendly options for this route.

How much is a round trip from Knoxville to London

Regular price: $625 - $1,483

Prices are currently within the regular range.

The regular price range for flights from Knoxville to London is $625 to $1483. The current lowest deal is $637 with Allegiant Air, for travel from Feb 5-Mar 3.

now $637

Low $625

High $1,483

The cheapest time to fly from Knoxville to London

The cheapest month to fly from TYS to LON is January, with a median price of $490. The most expensive month is July, with a median price of $1252. Prices are generally lower from January to September.

January

Cheapest

Flights from $490

July

Most Expensive

Flights from $1,252

Jan

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Direct flights from Knoxville to London

Allegiant Air

Norse Atlantic UK

United Airlines

Air Canada

Last-minute flights going from Knoxville to London

Wed, Sep 16

⌛ Last-Minute

TYS - London

Knoxville (TYS) - London (LHR)

$1,155

$1,108

One-way

Fri, Sep 18

⌛ Last-Minute

TYS - London

Knoxville (TYS) - London (LGW)

Allegiant Air

$949

$958

One-way

Mon, Sep 21

⌛ Last-Minute

TYS - London

Knoxville (TYS) - London (LHR)

$865

$755

One-way

Mon, Sep 21

⌛ Last-Minute

TYS - London

Knoxville (TYS) - London (LHR)

$933

$808

One-way

Mon, Sep 21

⌛ Last-Minute

TYS - London

Knoxville (TYS) - London (LGW)

Allegiant Air, Norse Atlantic UK

$936

$901

One-way

Tue, Sep 22

⌛ Last-Minute

TYS - London

Knoxville (TYS) - London (LHR)

United Airlines

$926

$896

One-way

Biggest price drops on these dates for flights from Knoxville to London

4 nights

Sep 26 - Sep 30

$1,004 → $799

20%

2 nights

Sep 25 - Sep 27

$1,021 → $824

19%

14 nights

Mar 17 - Mar 31

$1,065 → $900

15%

7 nights

Jan 12 - Jan 19

$900 → $761

15%

Popular Airports to fly from Knoxville to London

Knoxville - London route insights

💸 Price insights

Recent fares are above the typical level

Recent fares from Knoxville to London are above the typical level for this route.

📅 Best time to fly

January offers the lowest median price at $490

Historically, January, March, and April offer the lowest median prices for this route.

⏱️ Flight duration

Connecting flights average 26h 38m

Flights from Knoxville to London typically involve 2 stopovers, with a median duration of 26h 38m.

✈️ Airlines & availability

Connecting flights are dominant

There are no direct flights available for this route; connecting flights are dominant.

🏆 Airline highlight

Allegiant Air frequently offers deals

Allegiant Air has historically offered 49 deals on connecting flights for this route.

🎯 Booking tip

Deals appear frequently on this route

Deals for flights from Knoxville to London appear frequently, with many deals in the last 30 days.

Knoxville main airports to depart from

McGhee Tyson (TYS)

Cheapest

McGhee Tyson Airport is a convenient departure point for flights to London, offering competitive prices.

📍 ~18 km from Knoxville (reachable by car)

💸 Flights from ~$694

London main airports to arrive at

Gatwick (LGW)

Cheapest

Gatwick Airport offers a convenient arrival point for flights from Knoxville to London.

📍 ~40 km from city center (reachable by car)

💸 Flights from ~$685

Airports nearby London used as alternative

Birmingham (BHX)

London, United Kingdom

92% AI deal score

$7,404

$4,335

Save $3,069

United Airlines

Business Class

From TYS

Elite

Nov 17

London, United Kingdom

90% AI deal score

$7,404

$4,352

Save $3,052

From TYS

Elite

Nov 18

London, United Kingdom

90% AI deal score

$7,460

$4,352

Save $3,108

From TYS

Elite

Nov 19

London, United Kingdom

90% AI deal score

$7,564

$4,352

Save $3,212

From TYS

Elite

Nov 19

London, United Kingdom

90% AI deal score

$7,445

$4,352

Save $3,093

From TYS

Elite

Nov 19

London, United Kingdom

90% AI deal score

$7,389

$4,352

Save $3,037

From TYS

Elite

Oct 28

London, United Kingdom

82% AI deal score

$8,847

$6,818

Save $2,029

Aeroméxico, +1

Business Class

From TYS

Elite

Oct 28

London, United Kingdom

82% AI deal score

$8,863

$6,818

Save $2,045

Aeroméxico, +1

Business Class

From TYS

Elite

Oct 28

London, United Kingdom

82% AI deal score

$8,779

$6,818

Save $1,961

Aeroméxico, +1

Business Class

From TYS

Elite

Oct 28

London, United Kingdom

82% AI deal score

$8,932

$6,818

Save $2,114

Aeroméxico, +1

Business Class

From TYS

Elite

Oct 28

London, United Kingdom

82% AI deal score

$8,866

$6,910

Save $1,956

Aeroméxico, +1

Business Class

Frequently Asked Questions About Flights to London

To find more affordable flights, consider being flexible with your travel dates and times. Comparing prices across different airlines and booking sites can often reveal better deals. Setting up price alerts may also help you catch drops in fares.

Booking in advance is often recommended, especially for international routes. Prices can fluctuate, so monitoring fares over a few weeks or months may help you identify a good booking window. Weekday bookings sometimes offer slight advantages over weekend bookings.

Yes, comparing nearby airports at both your origin and destination can sometimes lead to more economical flight options. While it may add to your ground travel, the savings on airfare can be significant. Always factor in the total cost and convenience when considering this option.

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Knoxville to London: Overview

Insights for flights from Knoxville to London

How much is a round trip from Knoxville to London

Regular price: $625 - $1,483

Prices are currently within the regular range.

The regular price range for flights from Knoxville to London is $625 to $1483. The current lowest deal is $637 with Allegiant Air, for travel from Feb 5-Mar 3.

now $637

Low $625

High $1,483

The cheapest time to fly from Knoxville to London

January

Cheapest

Flights from $490

July

Most Expensive

Flights from $1,252

Jan

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Direct flights from Knoxville to London

Allegiant Air

Norse Atlantic UK

United Airlines

Air Canada

Last-minute flights going from Knoxville to London

Wed, Sep 16

⌛ Last-Minute

TYS - London

Knoxville (TYS) - London (LHR)

$1,155

$1,108

One-way

Fri, Sep 18

⌛ Last-Minute

TYS - London

Knoxville (TYS) - London (LGW)

Allegiant Air

$949

$958

One-way

Mon, Sep 21

⌛ Last-Minute

TYS - London

Knoxville (TYS) - London (LHR)

$865

$755

One-way

Mon, Sep 21

⌛ Last-Minute

TYS - London

Knoxville (TYS) - London (LHR)

$933

$808

One-way

Mon, Sep 21

⌛ Last-Minute

TYS - London

Knoxville (TYS) - London (LGW)

Allegiant Air, Norse Atlantic UK

$936

$901

One-way

Tue, Sep 22

⌛ Last-Minute

TYS - London

Knoxville (TYS) - London (LHR)

United Airlines

$926

$896

One-way

Biggest price drops on these dates for flights from Knoxville to London

4 nights

Sep 26 - Sep 30

$1,004 → $799

20%

2 nights

Sep 25 - Sep 27

$1,021 → $824

19%

14 nights

Mar 17 - Mar 31

$1,065 → $900

15%

7 nights

Jan 12 - Jan 19

$900 → $761

15%

Popular Airports to fly from Knoxville to London

Knoxville - London route insights

💸 Price insights

Recent fares are above the typical level

Recent fares from Knoxville to London are above the typical level for this route.

📅 Best time to fly

January offers the lowest median price at $490

Historically, January, March, and April offer the lowest median prices for this route.

⏱️ Flight duration

Connecting flights average 26h 38m

Flights from Knoxville to London typically involve 2 stopovers, with a median duration of 26h 38m.

✈️ Airlines & availability

Connecting flights are dominant

There are no direct flights available for this route; connecting flights are dominant.

🏆 Airline highlight

Allegiant Air frequently offers deals

Allegiant Air has historically offered 49 deals on connecting flights for this route.

🎯 Booking tip

Deals appear frequently on this route

Deals for flights from Knoxville to London appear frequently, with many deals in the last 30 days.

Knoxville main airports to depart from

McGhee Tyson (TYS)

Cheapest

McGhee Tyson Airport is a convenient departure point for flights to London, offering competitive prices.

📍 ~18 km from Knoxville (reachable by car)

💸 Flights from ~$694

London main airports to arrive at

Gatwick (LGW)

Cheapest

Gatwick Airport offers a convenient arrival point for flights from Knoxville to London.

📍 ~40 km from city center (reachable by car)

💸 Flights from ~$685

Airports nearby London used as alternative

Birmingham (BHX)

Birmingham Airport offers a wide variety of short and long-haul destinations and excellent rail connectivity.

London, United Kingdom

90% AI deal score

$7,404

$4,352

Save $3,052

From TYS

Elite

Nov 18

London, United Kingdom

90% AI deal score

$7,460

$4,352

Save $3,108

From TYS

Elite

Nov 19

London, United Kingdom

90% AI deal score

$7,564

$4,352

Save $3,212

From TYS

Elite

Nov 19

London, United Kingdom

90% AI deal score

$7,445

$4,352

Save $3,093

From TYS

London, United Kingdom

82% AI deal score

$8,866

$6,910

Save $1,956

Aeroméxico, +1

Business Class

Frequently Asked Questions About Flights to London

Cheap Flights from Knoxville to London

Today’s best flight deals from Knoxville to London

Knoxville to London: Overview

Insights for flights from Knoxville to London

How much is a round trip from Knoxville to London

The cheapest time to fly from Knoxville to London

Direct flights from Knoxville to London

Last-minute flights going from Knoxville to London

Biggest price drops on these dates for flights from Knoxville to London

Popular Airports to fly from Knoxville to London

Knoxville - London route insights

Recent fares are above the typical level

January offers the lowest median price at $490

Connecting flights average 26h 38m

Connecting flights are dominant

Allegiant Air frequently offers deals

Deals appear frequently on this route

Knoxville main airports to depart from

London main airports to arrive at

Airports nearby London used as alternative

Business & First Class Flight Deals to London

Best Elite deals to London

Dec 25

Nov 18

Nov 17

Nov 18

Nov 19

Nov 19

Nov 19

Oct 28

Oct 28

Oct 28

Oct 28

Oct 28

Frequently Asked Questions About Flights to London

How can I find cheap flights from Knoxville to London?

When should I book flights from Knoxville to London?

Should I compare nearby airports for flights from Knoxville to London?

Are direct flights from Knoxville to London always the best option?

Can flexible travel dates help on Knoxville to London flights?

What extra costs should I check before booking Knoxville to London flights?

Related routes

More routes from Knoxville

Flights to London from other cities

Knoxville to London: Overview

Insights for flights from Knoxville to London

How much is a round trip from Knoxville to London

The cheapest time to fly from Knoxville to London

Direct flights from Knoxville to London

Last-minute flights going from Knoxville to London

Biggest price drops on these dates for flights from Knoxville to London

Popular Airports to fly from Knoxville to London

Knoxville - London route insights

Recent fares are above the typical level

January offers the lowest median price at $490

Connecting flights average 26h 38m

Connecting flights are dominant

Allegiant Air frequently offers deals

Deals appear frequently on this route

Knoxville main airports to depart from

London main airports to arrive at

Airports nearby London used as alternative

Business & First Class Flight Deals to London

Best Elite deals to London

Dec 25

Nov 18

Nov 17

Nov 18

Nov 19

Nov 19

Nov 19

Oct 28

Oct 28

Oct 28

Oct 28

Oct 28

Frequently Asked Questions About Flights to London

How can I find cheap flights from Knoxville to London?

When should I book flights from Knoxville to London?

Should I compare nearby airports for flights from Knoxville to London?