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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.

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Knoxville

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

Prices updated 24 days ago

486,190 searches this week

171 airlines compared

80%+ AI score for best value

Fares are subject to change and may not be available for all dates. (Data last updated May 29, 2026.)

Today’s best flight deals from Knoxville to London

Explore current cheapest deals departing from Knoxville to London

Round trip

Sort by: Cheapest

August 2 - August 31

Cheapest

Best

TYS - London

$835

$587

Round trip

August 17 - August 31

TYS - London

$874

$640

Round trip

August 6 - August 21

TYS - London

$838

$696

Round trip

August 3 - August 19

TYS - London

$844

$702

Round trip

August 7 - August 21

TYS - London

$847

$728

Round trip

September 18 - September 25

TYS - London

$893

$740

Round trip

September 8 - September 18

TYS - London

$859

$740

Round trip

October 18 - October 22

TYS - London

$918

$745

Round trip

July 24 - July 31

Earliest

TYS - London

$925

$746

Round trip

September 12 - September 26

TYS - London

$855

$759

Round trip

Unlock all 500+ flight deals to London and get alerts when great deals appear

Route Intelligence — 486,190 Searches this Week

Insights for flights from Knoxville to London

Only 2% of recent fares for flights from Knoxville to London were classified as a good price. Right now, fares to London are above the typical level. Prices for this route typically range from $689–$1123, with a median of $919. New deals appear almost daily, suggesting frequent opportunities to find competitive pricing.

For travelers seeking cheap flights from Knoxville to London, the cheapest time to fly is often January, with a median fare of $490. Other cost-effective months include March, where the median fare is $602, and April, with a median of $730.

A typical journey from Knoxville to London takes approximately 26h 38m, including connections. This is a long-haul route, covering a distance of 6593 kilometers.

Most itineraries for this route connect at least once, with 0% of recent fares being non-stop. When connecting, the median number of stopovers is 3, indicating that direct flights from Knoxville to London are not available, and travelers should expect multiple stops on their journey.

How much is a round trip from Knoxville to London

Regular price: $708 - $1,246

Prices are currently below the regular range for flights from Knoxville to London.

The regular price range for this route is $708 to $1246. The current lowest deal is $587 with Allegiant Air, for travel from Aug 2-Aug 31.

now $587

Low $708

High $1,246

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

United Airlines

British Airways

Norse Atlantic UK

Last-minute flights going from Knoxville to London

Fri, Jun 19

⌛ Last-Minute

TYS - London

Knoxville (TYS) - London (LGW)

Allegiant Air

$1,056

$1,004

One-way

Fri, Jul 3

⌛ Last-Minute

TYS - London

Knoxville (TYS) - London (LGW)

Allegiant Air

$1,037

$996

One-way

Mon, Jul 6

⌛ Last-Minute

TYS - London

Knoxville (TYS) - London (LGW)

Allegiant Air

$915

$768

One-way

Tue, Jul 7

⌛ Last-Minute

TYS - London

Knoxville (TYS) - London (LGW)

Allegiant Air

$956

$827

One-way

Thu, Jul 9

⌛ Last-Minute

TYS - London

Knoxville (TYS) - London (LGW)

Allegiant Air

$1,009

$969

One-way

Thu, Jul 16

⌛ Last-Minute

TYS - London

Knoxville (TYS) - London (LGW)

Allegiant Air

$941

$788

One-way

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

29 nights

Aug 2 - Aug 31

$835 → $587

30%

14 nights

Aug 17 - Aug 31

$874 → $640

27%

7 nights

Jul 24 - Jul 31

$925 → $746

19%

4 nights

Oct 18 - Oct 22

$918 → $745

19%

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 at $587.

📅 Best time to fly

January is historically cheapest at $490

Historically, January is the cheapest month to fly from Knoxville to London, with a median price of $490.

⏱️ Flight duration

Connecting flights average 26h 38m

The typical flight duration from Knoxville to London is 26h 38m, with 3 stopovers.

✈️ Airlines & availability

Connecting flights only

There are no direct flights. Consider connecting flights from Allegiant Air, United Airlines, British Airways, and Norse Atlantic UK.

🏆 Airline highlight

Allegiant Air has 43 deals

Allegiant Air offers 43 deals on connecting flights, making it a frequent option for this route.

🎯 Booking tip

Deals appear frequently

New deals for flights from Knoxville to London appear frequently, averaging 1 deal per day.

Knoxville main airports to depart from

McGhee Tyson (TYS)

Cheapest

McGhee Tyson Airport (TYS) is a good option for flights from Knoxville to London.

📍 ~20 km from Knoxville (reachable by car)

💸 Flights from ~$587

London main airports to arrive at

Gatwick (LGW)

Cheapest

Gatwick Airport is a convenient arrival option for flights from Knoxville to London, with prices from $582.

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

💸 Flights from ~$582

Heathrow (LHR)

Heathrow Airport is a major hub for flights from Knoxville to London, with prices from $866.

📍 ~25 km from London city center (reachable by car)

💸 Flights from ~$866

London City (LCY)

London City Airport offers a close-to-city arrival for flights from Knoxville to London, with prices from $934.

📍 ~10 km from London city center (reachable by car)

💸 Flights from ~$934

London Southend (SEN)

London Southend Airport is an alternative arrival option for flights from Knoxville to London, with prices from $787.

📍 ~60 km from London city center (reachable by car)

💸 Flights from ~$787

London Stansted (STN)

London Stansted Airport is a good choice for flights from Knoxville to London, with prices from $798.

📍 ~50 km from London city center (reachable by car)

💸 Flights from ~$798

Luton (LTN)

Luton Airport is another option for flights from Knoxville to London, with prices from $816.

📍 ~45 km from London city center (reachable by car)

💸 Flights from ~$816

Airports nearby London used as alternative

Birmingham (BHX)

Cheapest

Birmingham Airport is a major international hub with a wide variety of long-haul and short-haul destinations.

📍 ~160 km from London (reachable by rail)

💸 Flights from ~$731

Southampton (SOU)

Southampton Airport is the closest alternative airport to the London area with a direct rail link.

📍 ~110 km from London (reachable by rail)

💸 Flights from ~$757

Bristol (BRS)

Bristol Airport offers a large selection of low-cost carrier routes across Europe.

📍 ~170 km from London (reachable by coach or rail)

💸 Flights from ~$968

East Midlands (EMA)

East Midlands Airport has a strong presence of budget airlines offering competitive pricing.

📍 ~170 km from London (reachable by car)

💸 Flights from ~$1071

Bournemouth (BOH)

Bournemouth Airport is an alternative option for travelers in South West London or the Home Counties.

📍 ~150 km from London (reachable by car)

💸 Flights from ~$1017

Business & First Class Flight Deals to London

77% AI deal score

$2,572

From TYS

Elite

Jul 11

London, United Kingdom

77% AI deal score

$2,986

From TYS

Elite

Aug 01

London, United Kingdom

76% AI deal score

$2,632

From TYS

Elite

Aug 22

London, United Kingdom

76% AI deal score

London, United Kingdom

69% AI deal score

$5,865

Frequently Asked Questions About Flights to London

Finding affordable flights often involves comparing prices across various platforms. Being flexible with your travel dates and considering different airlines can also help uncover better deals. Look for flights during off-peak seasons when demand may be lower.

Booking in advance is often recommended, as prices may increase closer to the departure date. However, sometimes last-minute deals can appear, so it can be beneficial to monitor prices over time. There isn't a single perfect time, but planning ahead usually offers more options.

Comparing nearby airports at both your origin and destination can sometimes lead to more affordable flight options. While it may add to your travel time, the savings on airfare can be significant. Always factor in the cost and convenience of ground transportation.

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Cheap Flights from Knoxville to London

Today’s best flight deals from Knoxville to London

Unlock all 500+ flight deals to London and get alerts when great deals appear

Route Intelligence — 486,190 Searches this Week

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 is historically cheapest at $490

Connecting flights average 26h 38m

Connecting flights only

Allegiant Air has 43 deals

Deals appear frequently

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

Jul 15

Aug 11

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Aug 12

Jul 29

Aug 07

Aug 01

Dec 16

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Nov 30

Oct 15

Aug 11

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Dec 01

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Oct 06

Jul 11

Aug 01

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Jul 15

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Frequently Asked Questions About Flights to London

How can I find cheap flights from Knoxville to London?

How can I find cheap flights from Knoxville to London?

When should I book 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?

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

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

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

Can flexible travel dates help on Knoxville to London flights?

Can flexible travel dates help on Knoxville to London flights?

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

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

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Consider alternative routes from Knoxville