Which layover airport offers the lowest fares from Knoxville to London Heathrow Airport?

Flights via Charlotte (CLT) offer the lowest average round-trip price of $1,199.

Which layover airport has the shortest travel time from Knoxville to London Heathrow Airport?

Flights connecting via Charlotte (CLT) have the shortest average one-way travel time: 10h 25m.

Which airport is the most popular layover for flights between Knoxville and London Heathrow Airport?

Atlanta (ATL) was the most common stop: 38% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport has the shortest connection time from Knoxville to London Heathrow Airport?

Charlotte (CLT) has the shortest average layover time for this route: 1h 23m.

What airlines fly to London Heathrow Airport?

American Airlines, Delta and Virgin Atlantic are the top three most popular airlines that fly to London Heathrow Airport from Knoxville according to our data. American Airlines is the first choice among our users, with 56% of people opting to fly with this airline when traveling to London Heathrow Airport. Keep in mind that there are 6 different airlines that fly to London Heathrow Airport on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Knoxville McGhee Tyson to London Heathrow?

Air France, United Airlines, and Air Canada are the most popular carriers operating from Knoxville McGhee Tyson to London Heathrow

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

Prices for flights from Knoxville McGhee Tyson Airport to London Heathrow Airport are updated daily.

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

As of August 2025, there are 5 operators available to choose from for flights from Knoxville McGhee Tyson Airport to London Heathrow Airport.

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

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Knoxville McGhee Tyson Airport to London Heathrow Airport.

What documentation or ID do you need to fly to London Heathrow Airport?

The required travel and health documents for your London Heathrow Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London Heathrow Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$276 Cheap Flights from Knoxville to London Heathrow Airport in 2025

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

Prices are currently low for flights on this route. Typical prices usually range from $751 to $796. The lowest price recently found on this route was $574.

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Find the cheapest flights from Knoxville to London

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One-way

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Cheap round-trip flights

6:03 pm - 1:10 pmTYS-LHR

14h 07m1 stop

1:05 pm - 9:26 pmLHR-TYS

13h 21m1 stop

$574KLM

Find Deal

mié., sep. 10 - jue., sep. 18

5:44 am - 6:45 amTYS-LHR

20h 01m1 stop

6:30 am - 8:10 pmLHR-TYS

17h 40m2 stops

$618Delta

Find Deal

jue., oct. 16 - mié., oct. 29

2:00 pm - 8:20 amTYS-LHR

13h 20m1 stop

8:30 am - 10:50 pmLHR-TYS

19h 20m1 stop

$645United Airlines

Find Deal

lun., sep. 29 - mar., oct. 14

5:16 pm - 4:00 pmTYS-LHR

17h 44m2 stops

6:40 am - 11:07 pmLHR-TYS

20h 27m2 stops

$673Scandinavian Airlines

Find Deal

jue., oct. 16 - mié., oct. 29

5:51 pm - 9:15 amTYS-LHR

10h 24m1 stop

7:40 pm - 9:38 pmLHR-TYS

30h 58m2 stops

$685British Airways

Find Deal

dom., nov. 23 - lun., dic. 8

5:00 pm - 11:35 amTYS-LHR

13h 35m1 stop

1:10 pm - 8:39 pmLHR-TYS

12h 29m1 stop

$694British Airways

Find Deal

mar., feb. 10 - mar., feb. 17

10:50 am - 7:10 amTYS-LHR

15h 20m2 stops

9:00 am - 9:04 pmLHR-TYS

17h 04m2 stops

$697United Airlines

Find Deal

mar., nov. 25 - vie., dic. 5

12:01 pm - 6:45 amTYS-LHR

13h 44m1 stop

10:55 am - 11:07 pmLHR-TYS

17h 12m2 stops

$699Virgin Atlantic

Find Deal

lun., sep. 29 - mar., oct. 14

3:48 pm - 6:30 pmTYS-LHR

21h 42m2 stops

6:40 am - 11:07 pmLHR-TYS

20h 27m2 stops

$708Scandinavian Airlines

Find Deal

jue., oct. 16 - mié., oct. 29

3:48 pm - 10:30 amTYS-LHR

13h 42m2 stops

9:40 am - 11:07 pmLHR-TYS

17h 27m2 stops

$720Virgin Atlantic

Find Deal

lun., oct. 6 - mié., oct. 29

Delta flights from Knoxville to London Heathrow Airport

Our best Delta deals on Knoxville to London Heathrow Airport flight tickets

Delta

Oct 16

TYS5:44 amKnoxville McGhee Tyson

20h 01m

1 stop

LHR6:45 amLondon Heathrow

Oct 29

LHR6:30 amLondon Heathrow

17h 40m

2 stops

TYS8:10 pmKnoxville McGhee Tyson

$618

Find similar

Delta

Oct 16

TYS3:48 pmKnoxville McGhee Tyson

12h 27m

2 stops

LHR9:15 amLondon Heathrow

Oct 29

LHR6:30 amLondon Heathrow

17h 40m

2 stops

TYS8:10 pmKnoxville McGhee Tyson

$622

Find similar

Delta

Oct 16

TYS8:10 pmKnoxville McGhee Tyson

12h 20m

1 stop

LHR1:30 pmLondon Heathrow

Oct 29

LHR8:55 amLondon Heathrow

15h 15m

1 stop

TYS8:10 pmKnoxville McGhee Tyson

$624

Find similar

Scandinavian Airlines flights from Knoxville to London Heathrow Airport

Our best Scandinavian Airlines deals on Knoxville to London Heathrow Airport flight tickets

Scandinavian Airlines

Oct 16

TYS5:16 pmKnoxville McGhee Tyson

17h 44m

2 stops

LHR4:00 pmLondon Heathrow

Oct 29

LHR6:40 amLondon Heathrow

20h 27m

2 stops

TYS11:07 pmKnoxville McGhee Tyson

$673

Find similar

Scandinavian Airlines

Oct 16

TYS3:48 pmKnoxville McGhee Tyson

21h 42m

2 stops

LHR6:30 pmLondon Heathrow

Oct 29

LHR6:40 amLondon Heathrow

20h 27m

2 stops

TYS11:07 pmKnoxville McGhee Tyson

$708

Find similar

momondo Fare Finder

Use the filters below to find and compare flights from Knoxville to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

mié. 9/10

6:03 pm-1:10 pm

1 stop14h 07m

London Heathrow

jue. 9/18

1:05 pm-9:26 pm

1 stop13h 21m

$574

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

jue. 10/16

5:44 am-6:45 am

1 stop20h 01m

London Heathrow

mié. 10/29

6:30 am-8:10 pm

2 stops17h 40m

$618

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

lun. 9/29

2:00 pm-8:20 am

1 stop13h 20m

London Heathrow

mar. 10/14

8:30 am-10:50 pm

1 stop19h 20m

$645

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

jue. 10/16

5:16 pm-4:00 pm

2 stops17h 44m

London Heathrow

mié. 10/29

6:40 am-11:07 pm

2 stops20h 27m

$673

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

dom. 11/23

5:51 pm-9:15 am

1 stop10h 24m

London Heathrow

lun. 12/8

7:40 pm-9:38 pm

2 stops30h 58m

$685

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

mar. 2/10

5:00 pm-11:35 am

1 stop13h 35m

London Heathrow

mar. 2/17

1:10 pm-8:39 pm

1 stop12h 29m

$694

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

mar. 11/25

10:50 am-7:10 am

2 stops15h 20m

London Heathrow

vie. 12/5

9:00 am-9:04 pm

2 stops17h 04m

$697

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

lun. 9/29

12:01 pm-6:45 am

1 stop13h 44m

London Heathrow

mar. 10/14

10:55 am-11:07 pm

2 stops17h 12m

$699

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

jue. 10/16

3:48 pm-6:30 pm

2 stops21h 42m

London Heathrow

mié. 10/29

6:40 am-11:07 pm

2 stops20h 27m

$708

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

lun. 10/6

3:48 pm-10:30 am

2 stops13h 42m

London Heathrow

mié. 10/29

9:40 am-11:07 pm

2 stops17h 27m

$720

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Knoxville to London Heathrow Airport

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

Prices

Airlines

Layovers

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

What is the cheapest month to fly to London Heathrow Airport?

The month of February is, on average, the cheapest month to fly to London Heathrow Airport from Knoxville, with most prices found around $678. If you’re not able to fly to London Heathrow Airport in February, then April is your next best option. Flight prices from Knoxville to London Heathrow Airport during April average around $770.

What is the cheapest day to depart on your flight to London Heathrow Airport?

Our data shows that Wednesday is the least expensive day to fly to London Heathrow Airport. Tickets to fly out on this day can be as low as $834. The most expensive day to fly to London Heathrow Airport is Saturday, with ticket prices averaging around $1,000.

What is the cheapest time of day to depart on your flight to London Heathrow Airport?

According to our data, the cheapest time of day to fly to London Heathrow Airport is in the morning. momondo users have found flights departing from Knoxville to London Heathrow Airport in the morning for as low as $823. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the afternoon are often more expensive with an average ticket price of $967.

How far in advance should I book a flight to London Heathrow Airport?

You are more likely to see cheaper flights to London Heathrow Airport from Knoxville when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around $930 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from Knoxville for as low as $731 on momondo.

Can stopping save me money on Knoxville to London Heathrow Airport flights?

You could potentially save up to 4% on your flight if you consider stops on a Knoxville to London Heathrow Airport flight.

When to book flights from Knoxville to London Heathrow Airport

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

Estimated round-trip price

Cheap Knoxville to London Heathrow Airport (TYS to LHR) flight deals and tips

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

Direct flights	None

There are no direct flights from Knoxville to London Heathrow Airport. There are no popular flight routes from Knoxville to London Heathrow Airport.

Search flight deals

How far is Knoxville McGhee Tyson to London Heathrow by plane?
London Heathrow is 4065.6 mi away from Knoxville McGhee Tyson. In terms of flight time, this usually takes a little over 9h 57m.
When did momondo last update prices for flights from Knoxville McGhee Tyson Airport to London Heathrow Airport?
Prices for flights from Knoxville McGhee Tyson Airport to London Heathrow Airport are updated daily.
How many operators does momondo search for flights from Knoxville McGhee Tyson Airport to London Heathrow Airport?
As of August 2025, there are 5 operators available to choose from for flights from Knoxville McGhee Tyson Airport to London Heathrow Airport.
How old do you have to be to fly from Knoxville McGhee Tyson Airport to London Heathrow Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Knoxville McGhee Tyson Airport to London Heathrow Airport.
What documentation or ID do you need to fly to London Heathrow Airport?
The required travel and health documents for your London Heathrow Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London Heathrow Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from Knoxville to London Heathrow Airport?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Knoxville to London Heathrow Airport is American Airlines (45% of total bookings). The next most popular airlines are British Airways (25%), United Airlines (14%), and Delta (9%).

Best airlines flying from Knoxville to London Heathrow Airport

Compare and see reviews for airlines that fly from Knoxville to London Heathrow Airport with momondo

Airline	Rating	Free Cancellation	Price
Virgin Atlantic	PriceFrom $572	Free Cancellation	Rating 7.4 661 reviews	Search Virgin Atlantic flights
Delta	PriceFrom $676	Free Cancellation	Rating 7.9 7,977 reviews	Search Delta flights
British Airways	PriceFrom $693	Free Cancellation	Rating 6.7 7,316 reviews	Search British Airways flights
United Airlines	PriceFrom $716	Free Cancellation	Rating 7.4 8,944 reviews	Search United Airlines flights
American Airlines	PriceFrom $736	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights

Hounslow

Gatwick

Luton

Dover

Slough

Milton Keynes

Guildford

Dartford

Crawley

Stansted

Hayes

Chelmsford

Salisbury

Brentwood

Ilford

Folkestone

Swindon

Colchester

Stratford-upon-Avon

Watford

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Knoxville to London for you.

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

Yes. momondo allows you to filter the results for Knoxville to London flights to just show those with flexible booking policies.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to London from Knoxville.

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

Price alerts on flights to London from Knoxville are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your London Heathrow Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Flights to Belfast City Airportfrom $512

Cheap flights from Knoxville to London from $276

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Knoxville to London departing on 10/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Delta flights from Knoxville to London Heathrow Airport

Our best Delta deals on Knoxville to London Heathrow Airport flight tickets

Scandinavian Airlines flights from Knoxville to London Heathrow Airport

Our best Scandinavian Airlines deals on Knoxville to London Heathrow Airport flight tickets

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Use the filters below to find and compare flights from Knoxville to London Heathrow Airport that are best for you.

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How to get the cheapest flight ticket from Knoxville to London Heathrow Airport

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 Knoxville and London Heathrow Airport?

What is the cheapest month to fly to London Heathrow Airport?

What is the cheapest day to depart on your flight to London Heathrow Airport?

Our data shows that Wednesday is the least expensive day to fly to London Heathrow Airport. Tickets to fly out on this day can be as low as $834. The most expensive day to fly to London Heathrow Airport is Saturday, with ticket prices averaging around $1,000.

What is the cheapest time of day to depart on your flight to London Heathrow Airport?

How far in advance should I book a flight to London Heathrow Airport?

Can stopping save me money on Knoxville to London Heathrow Airport flights?

You could potentially save up to 4% on your flight if you consider stops on a Knoxville to London Heathrow Airport flight.

What is the cheapest airline that flies from Knoxville McGhee Tyson to London Heathrow?

Air France, United Airlines, and Air Canada are the most popular carriers operating from Knoxville McGhee Tyson to London Heathrow

What airlines fly to London Heathrow Airport?

Which airport is the most popular layover for flights between Knoxville and London Heathrow Airport?

Atlanta (ATL) was the most common stop: 38% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport offers the lowest fares from Knoxville to London Heathrow Airport?

Flights via Charlotte (CLT) offer the lowest average round-trip price of $1,199.

Which layover airport has the shortest travel time from Knoxville to London Heathrow Airport?

Flights connecting via Charlotte (CLT) have the shortest average one-way travel time: 10h 25m.

Which layover airport has the shortest connection time from Knoxville to London Heathrow Airport?

Charlotte (CLT) has the shortest average layover time for this route: 1h 23m.

When to book flights from Knoxville to London Heathrow Airport

Cheap Knoxville to London Heathrow Airport (TYS to LHR) flight deals and tips

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

Direct flights

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

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

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

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

What documentation or ID do you need to fly to London Heathrow Airport?

What is the most popular airline from Knoxville to London Heathrow Airport?

Best airlines flying from Knoxville to London Heathrow Airport

Compare and see reviews for airlines that fly from Knoxville to London Heathrow Airport with momondo

Traveling to a place near London?

Why use momondo?

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

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

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

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

An easier way to manage your London Heathrow Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to London

Popular cities in the United Kingdom

Popular flights according to clicks in the last 7 days on momondo