How long is the flight from Kentucky to London Heathrow Airport?

United Airlines and British Airways can get you from Kentucky to London Heathrow Airport in just under 11h 09m. Your travel time can differ by up to 24h 02m. Kentucky and London Heathrow Airport are separated by a distance of 3995 mi. Both multi-stop and direct flights can be found to your destination and back.

In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

If weather is an important factor for your trip to London Heathrow Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

What are the most popular routes from Kentucky to London Heathrow Airport?

When deciding which route to take from Kentucky to London Heathrow Airport consider Nashville Intl - London Heathrow, Cincinnati Cinci./N. Kentucky - London Heathrow or Louisville Intl - London Heathrow as they are the most popular.

What is the cheapest time of day to fly from KY to LHR?

When flying from Kentucky to London Heathrow Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Can I find deals for flights from Kentucky to Heathrow that include hotel bookings?

Yes. In addition to deals on Kentucky to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Kentucky to Heathrow?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Kentucky to Heathrow.

Can I find deals for business class flights from Kentucky to Heathrow?

Yes. Cheapflights offers flight deals from Kentucky to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£243+ Cheap Flights from Kentucky to London Heathrow Airport

Cheap flight deals from Kentucky to Heathrow

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

Cheapest flights from Kentucky to Heathrow
Explore the most affordable flight options available from Kentucky to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 31 October 2026.

Wed 2/1218:26 -

1 stop10h 59m

Tue 15/1207:30 -

2 stops21h 13m

Deal found 29/10£673

Sun 29/1113:49 -

1 stop11h 06m

Tue 15/1209:00 -

2 stops18h 32m

Deal found 30/10£682

Wed 2/1205:00 -

1 stop21h 55m

Tue 15/1211:10 -

2 stops16h 22m

Deal found 29/10£689

Sun 29/1111:20 -

1 stop16h 15m

Tue 15/1212:35 -

1 stop16h 16m

Deal found 30/10£690

Wed 2/1210:25 -

2 stops15h 45m

Tue 15/1208:45 -

2 stops20h 14m

Deal found 29/10£691

Wed 9/1211:10 -

1 stop14h 45m

Wed 16/1211:45 -

1 stop14h 14m

Deal found 26/10£693

Wed 9/1213:45 -

1 stop13h 10m

Wed 16/1207:30 -

2 stops21h 26m

Deal found 26/10£697

Wed 9/1213:45 -

2 stops21h 05m

Wed 16/1206:30 -

2 stops22h 26m

Deal found 26/10£703

Wed 28/1017:35 -

1 stop11h 00m

Fri 13/1107:30 -

2 stops19h 07m

Deal found 28/10£705

Sun 29/1117:49 -

2 stops14h 56m

Tue 15/1211:45 -

2 stops17h 19m

Deal found 30/10£714

Sat 5/1206:10 -

1 stop10h 10m

Tue 8/1209:00 -

2 stops19h 49m

Deal found 28/10£725

Mon 7/1215:18 -

2 stops14h 12m

Wed 23/1211:20 -

1 stop15h 03m

Deal found 29/10£728

Best flights from Kentucky to Heathrow
Discover carefully curated flight deals from Kentucky to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 31 October 2026.

Tue 2/315:29 -

1 stop35h 11m

Fri 5/306:50 -

2 stops15h 17m

Deal found 30/10£577

Mon 8/210:50 -

2 stops19h 00m

Mon 15/219:15 -

2 stops33h 44m

Deal found 27/10£666

Tue 16/315:24 -

1 stop16h 16m

Wed 31/306:30 -

2 stops16h 10m

Deal found 26/10£681

Fri 15/119:26 -

1 stop11h 09m

Fri 22/111:00 -

1 stop12h 56m

Deal found 29/10£717

Mon 16/1115:38 -

2 stops19h 22m

Wed 18/1106:40 -

2 stops22h 18m

Deal found 28/10£969

Tue 23/309:00 -

2 stops32h 00m

Tue 6/414:05 -

2 stops29h 42m

Deal found 26/10£675

Wed 2/1205:00 -

1 stop21h 55m

Tue 15/1211:10 -

2 stops16h 22m

Deal found 29/10£689

Fri 26/213:53 -

1 stop11h 02m

Tue 9/307:40 -

1 stop14h 21m

Deal found 30/10£727

Sat 6/318:09 -

1 stop30h 46m

Mon 15/307:50 -

1 stop13h 11m

Deal found 27/10£731

Fri 5/318:09 -

1 stop30h 46m

Tue 16/307:40 -

1 stop13h 21m

Deal found 27/10£731

Thu 7/108:40 -

2 stops17h 30m

Mon 11/111:05 -

2 stops35h 17m

Deal found 29/10£746

Mon 14/1213:45 -

2 stops13h 40m

Mon 21/1210:25 -

1 stop15h 13m

Deal found 29/10£836

Wed 16/1208:45 -

1 stop16h 10m

Sun 20/1213:00 -

2 stops32h 38m

Deal found 28/10£905

Sat 19/1210:45 -

2 stops38h 45m

Sun 27/1207:40 -

1 stop13h 58m

Deal found 28/10£1,031

Sun 13/1213:35 -

1 stop11h 20m

Sun 20/1213:00 -

2 stops29h 12m

Deal found 29/10£1,037

Find flight deals from Kentucky to Heathrow

Round-trip from	£573
One-way from	£243
Popular in	June
Cheapest in	January
Average price	£784

United Airlines
10/3-12/3
3 total stops
31h 19m total
Kentucky to London

Search Deals

British Airways
17/3-31/12
1 total stop
13h 05m total
Kentucky to London

Search Deals

Highest demand for flights based on searches. 12% potential increase in price (£88 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (£14 potential savings vs. average return price).

Search Deals

Average for round-trip flights in October 2026

Search Deals

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LouisvilleLondon

SDF Louisville Intl - LHR London Heathrow

SDFLHR

Louisville Intl

Tue 16/3

09:00-21:00

2 stops32h 00m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£249

LouisvilleLondon

SDF Louisville Intl - LHR London Heathrow

SDFLHR

Louisville Intl

Thu 18/3

07:05-10:15

1 stop23h 10m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£289

LouisvilleLondon

SDF Louisville Intl - LHR London Heathrow

SDFLHR

Louisville Intl

Tue 24/11

07:30-09:05

2 stops20h 35m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£321

Fastest return journey

LouisvilleLondon

SDF Louisville Intl - LHR London Heathrow

SDFLHR

Louisville Intl

Wed 6/1

18:29-15:35

2 stops16h 06m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£321

LexingtonLondon

LEX Lexington Blue Grass - LHR London Heathrow

LEXLHR

Lexington Blue Grass

Mon 16/11

05:14-08:05

2 stops21h 51m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£321

LouisvilleLondon

SDF Louisville Intl - LHR London Heathrow

SDFLHR

Louisville Intl

Mon 18/1

13:11-10:25

1 stop16h 14m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£342

LexingtonLondon

LEX Lexington Blue Grass - LHR London Heathrow

LEXLHR

Lexington Blue Grass

Fri 15/1

11:55-13:25

2 stops20h 30m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£356

LexingtonLondon

LEX Lexington Blue Grass - LHR London Heathrow

LEXLHR

Lexington Blue Grass

Fri 15/1

11:55-10:25

1 stop17h 30m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£378

LexingtonLondon

LEX Lexington Blue Grass - LHR London Heathrow

LEXLHR

Lexington Blue Grass

Fri 15/1

10:50-10:10

3 stops18h 20m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£556

LouisvilleLondon

SDF Louisville Intl - LHR London Heathrow

SDFLHR

Louisville Intl

Tue 2/3

15:29-07:40

1 stop35h 11m

London Heathrow

Fri 5/3

06:50-17:07

2 stops15h 17m

£577

Flights are sorted by cheapest return flights first.

Deals found on 26/10

Showing 1-10 of 29 resultsSorted by cheapest first

Best time to book a flight from Kentucky to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Kentucky with our price prediction graph.

SDF-LHR

LEX-LHR

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 Kentucky to London Heathrow Airport

USKY-LHR

SDF-LHR

LEX-LHR

What is the cheapest month to book a flight from Kentucky to London Heathrow Airport?

Currently, January is the cheapest month in which you can book a flight from Kentucky to London Heathrow Airport (average of £572). Flying from Kentucky to London Heathrow Airport in June is currently the most expensive (average of £1,099). 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.

How much does it cost for a return flight from Kentucky to London Heathrow Airport?

Airfare is below average for this route at the moment.

Kentucky to London Heathrow Airport flights typically cost between £596 and £874 in March.
The cheapest return price found within the last 5 days was £577 on United Airlines (2 Mar–5 Mar).

Related info for your journey

How long is the flight from Kentucky to London Heathrow Airport?
United Airlines and British Airways can get you from Kentucky to London Heathrow Airport in just under 11h 09m. Your travel time can differ by up to 24h 02m. Kentucky and London Heathrow Airport are separated by a distance of 3995 mi. Both multi-stop and direct flights can be found to your destination and back.
What are the most popular routes from Kentucky to London Heathrow Airport?
When deciding which route to take from Kentucky to London Heathrow Airport consider Nashville Intl - London Heathrow, Cincinnati Cinci./N. Kentucky - London Heathrow or Louisville Intl - London Heathrow as they are the most popular.
Can I find deals for flights from Kentucky to Heathrow that include hotel bookings?
Yes. In addition to deals on Kentucky to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Kentucky to Heathrow?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Kentucky to Heathrow.
Can I find deals for business class flights from Kentucky to Heathrow?
Yes. Cheapflights offers flight deals from Kentucky to Heathrow 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 Kentucky to London Heathrow Airport?
Currently, January is the cheapest month in which you can book a flight from Kentucky to London Heathrow Airport (average of £572). Flying from Kentucky to London Heathrow Airport in June is currently the most expensive (average of £1,099). 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

Hounslow

Luton

Milton Keynes

Slough

Wembley

Gatwick

Ilford

Hayes

Croydon

Northampton

Barnet

Eastbourne

Brentford

Southend-on-Sea

Southall

Enfield

Watford

Kingston upon Thames

Dagenham

Dover

Browse thousands of different options on Cheapflights for your next trip

Alternative routes

Complete your trip

Direct flights to England

Flights by cabin class

Heathrow flight routes

Other flight options

Popular flights

Top destinations

Alternative routes for Kentucky to Heathrow

John F Kennedy Intl to Heathrow flights

Newark to Heathrow flights

John F Kennedy Intl to Gatwick flights

Boston to Heathrow flights

Newark to Gatwick flights

LaGuardia to Heathrow flights

John F Kennedy Intl to London City flights

John F Kennedy Intl to Stansted flights

Dulles Intl to Heathrow flights

Baltimore to Heathrow flights

LaGuardia to Gatwick flights

San Francisco to Heathrow flights

Los Angeles to Heathrow flights

Newark to London City flights

O'Hare Intl to Heathrow flights

Newark to Luton flights

Seattle to Heathrow flights

Newark to Stansted flights

Dallas/Fort Worth to Heathrow flights

Boston to Gatwick flights

Orlando to Heathrow flights

Boston to London City flights

Atlanta to Heathrow flights

Reagan-National to Heathrow flights

Boston to Stansted flights

Dulles Intl to Gatwick flights

Miami to Heathrow flights

Dulles Intl to London City flights

San Francisco to Gatwick flights

Denver to Heathrow flights

San Francisco to Stansted flights

Boston to Luton flights

Hobby to Heathrow flights

Los Angeles to Gatwick flights

Baltimore to Gatwick flights

San Francisco to London City flights

Reagan-National to Gatwick flights

Philadelphia to Heathrow flights

Los Angeles to London City flights

Los Angeles to Stansted flights

O'Hare Intl to Gatwick flights

Dulles Intl to Luton flights

O'Hare Intl to Stansted flights

George Bush Intcntl to Heathrow flights

Sky Harbor Intl to Heathrow flights

O'Hare Intl to London City flights

Baltimore to Luton flights

San Francisco to Luton flights

Fly with Cheapflights

How does Cheapflights help users find flights from Kentucky to Heathrow?

Deals for Kentucky to Heathrow flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Kentucky to Heathrow?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Kentucky to Heathrow for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Kentucky to Heathrow with no change fees?

Need flexible booking options for your flight to Heathrow from Kentucky? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Kentucky to Heathrow become cheaper?

Not ready to book yet? You can track prices for flights from Kentucky to Heathrow on Cheapflights with our Price Alert feature and get notified when better prices are available.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

Cheap flights from Kentucky to London Heathrow Airport from £243

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 17/3. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Kentucky to Heathrow

Cheapest flights from Kentucky to HeathrowExplore the most affordable flight options available from Kentucky to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 31 October 2026.

Explore the most affordable flight options available from Kentucky to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 31 October 2026.

Best flights from Kentucky to HeathrowDiscover carefully curated flight deals from Kentucky to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 31 October 2026.

Discover carefully curated flight deals from Kentucky to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 31 October 2026.

Last-minute flights from Kentucky to HeathrowDiscover last-minute flight deals from Kentucky to Heathrow. Data last updated 31 October 2026 and is based on user searches.

Discover last-minute flight deals from Kentucky to Heathrow. Data last updated 31 October 2026 and is based on user searches.

One-way flights from Kentucky to HeathrowSearch for one-way flight options from Kentucky to Heathrow. Find affordable one-way fares based on user searches. Data last updated 31 October 2026.

Search for one-way flight options from Kentucky to Heathrow. Find affordable one-way fares based on user searches. Data last updated 31 October 2026.

Find flight deals from Kentucky to Heathrow

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

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

Best time to book a flight from Kentucky to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Kentucky with our price prediction graph.

Cheapflights Insights

What is the cheapest month to book a flight from Kentucky to London Heathrow Airport?

How much does it cost for a return flight from Kentucky to London Heathrow Airport?

Airfare is below average for this route at the moment.

Kentucky to London Heathrow Airport flights typically cost between £596 and £874 in March.The cheapest return price found within the last 5 days was £577 on United Airlines (2 Mar–5 Mar).

Related info for your journey

How long is the flight from Kentucky to London Heathrow Airport?

What are the most popular routes from Kentucky to London Heathrow Airport?

Can I find deals for flights from Kentucky to Heathrow that include hotel bookings?

How can I find direct flights from Kentucky to Heathrow?

Can I find deals for business class flights from Kentucky to Heathrow?

What is the cheapest month to book a flight from Kentucky to London Heathrow Airport?

Travelling to a place near London Heathrow Airport?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Kentucky to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Heathrow by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to England

Book a non-stop flight to one of these other cities located in England.

Search flights from Kentucky to Heathrow by cabin class

Find flights from Kentucky to Heathrow, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Other flights to Heathrow

Explore flights to Heathrow departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 31 October 2026.

Kentucky and Heathrow flights

Browse other Kentucky and Heathrow flight options. Last updated on 31 October 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Kentucky to Heathrow flights

Consider these flights travelling from Kentucky to Heathrow.

Fly with Cheapflights

How does Cheapflights help users find flights from Kentucky to Heathrow?

Why should you use Cheapflights to find cheap flight tickets from Kentucky to Heathrow?

Can Cheapflights find flights from Kentucky to Heathrow with no change fees?

Can Cheapflights notify me if prices for flights from Kentucky to Heathrow become cheaper?

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Kentucky to Heathrow
Explore the most affordable flight options available from Kentucky to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 31 October 2026.

Best flights from Kentucky to Heathrow
Discover carefully curated flight deals from Kentucky to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 31 October 2026.

Last-minute flights from Kentucky to Heathrow
Discover last-minute flight deals from Kentucky to Heathrow. Data last updated 31 October 2026 and is based on user searches.

One-way flights from Kentucky to Heathrow
Search for one-way flight options from Kentucky to Heathrow. Find affordable one-way fares based on user searches. Data last updated 31 October 2026.

Kentucky to London Heathrow Airport flights typically cost between £596 and £874 in March.
The cheapest return price found within the last 5 days was £577 on United Airlines (2 Mar–5 Mar).