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

United Airlines, British Airways, and Scandinavian Airlines can get you from Kentucky to London Heathrow Airport in just under 16h 35m. Your travel time can differ by up to 5h. 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 Lexington Blue Grass - 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 10 November 2026.

Wed 9/1213:02 -

1 stop13h 18m

Wed 16/1212:35 -

1 stop14h 02m

Deal found 9/11£686

Wed 9/1213:21 -

1 stop14h 14m

Tue 15/1212:35 -

1 stop14h 02m

Deal found 9/11£693

Wed 9/1210:25 -

2 stops15h 45m

Wed 16/1206:30 -

2 stops16h 47m

Deal found 9/11£700

Wed 2/1210:13 -

1 stop17h 22m

Fri 11/1206:15 -

2 stops20h 23m

Deal found 8/11£706

Sun 29/1112:50 -

2 stops24h 40m

Sun 6/1206:40 -

2 stops22h 24m

Deal found 7/11£721

Sat 5/1219:22 -

1 stop32h 13m

Sat 12/1209:15 -

2 stops43h 36m

Deal found 5/11£723

Wed 2/1213:02 -

1 stop13h 18m

Fri 11/1211:45 -

1 stop16h 09m

Deal found 8/11£723

Sat 5/1218:05 -

2 stops32h 35m

Sat 12/1213:45 -

2 stops37h 47m

Deal found 5/11£729

Wed 2/1210:25 -

2 stops14h 55m

Fri 11/1209:00 -

2 stops17h 00m

Deal found 8/11£729

Sat 5/1214:25 -

2 stops35h 45m

Sat 12/1211:05 -

2 stops41h 54m

Deal found 5/11£738

Wed 2/1209:00 -

2 stops16h 30m

Fri 11/1209:30 -

2 stops15h 05m

Deal found 8/11£741

Tue 10/1106:27 -

1 stop21h 08m

Thu 17/1208:20 -

1 stop14h 19m

Deal found 9/11£743

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 10 November 2026.

Wed 10/206:00 -

1 stop20h 55m

Mon 15/213:45 -

2 stops39h 14m

Deal found 9/11£667

Mon 8/315:55 -

2 stops16h 35m

Mon 15/319:40 -

2 stops31h 54m

Deal found 5/11£676

Wed 3/309:45 -

1 stop15h 55m

Tue 9/313:00 -

2 stops29h 02m

Deal found 9/11£679

Tue 16/313:00 -

3 stops21h 35m

Sat 17/406:40 -

2 stops22h 22m

Deal found 6/11£702

Mon 4/117:27 -

1 stop13h 13m

Thu 14/108:40 -

2 stops17h 28m

Deal found 7/11£724

Wed 31/311:10 -

2 stops16h 25m

Fri 30/408:45 -

2 stops30h 26m

Deal found 6/11£674

Wed 10/315:55 -

2 stops18h 25m

Mon 15/319:40 -

2 stops31h 54m

Deal found 5/11£676

Fri 23/413:00 -

2 stops19h 35m

Fri 30/419:30 -

2 stops33h 32m

Deal found 5/11£709

Thu 18/315:45 -

1 stop10h 40m

Wed 24/310:00 -

2 stops15h 35m

Deal found 8/11£726

Mon 8/313:25 -

1 stop15h 35m

Mon 15/311:00 -

1 stop16h 34m

Deal found 5/11£729

Mon 15/314:00 -

1 stop13h 55m

Thu 25/315:00 -

2 stops30h 01m

Deal found 8/11£682

Sun 3/106:13 -

1 stop21h 22m

Tue 19/107:30 -

2 stops20h 57m

Deal found 10/11£683

Wed 17/315:24 -

2 stops15h 06m

Sun 28/313:25 -

1 stop12h 26m

Deal found 9/11£756

Wed 10/211:55 -

2 stops22h 25m

Sun 21/207:30 -

2 stops21h 04m

Deal found 9/11£692

Sat 5/1206:10 -

1 stop10h 10m

Fri 11/1218:00 -

2 stops30h 25m

Deal found 8/11£775

Thu 18/213:53 -

1 stop11h 02m

Thu 11/306:50 -

2 stops18h 28m

Deal found 9/11£705

Thu 18/211:00 -

2 stops15h 10m

Fri 12/306:35 -

2 stops18h 43m

Deal found 6/11£708

Wed 10/217:46 -

1 stop10h 54m

Sun 21/212:35 -

1 stop13h 56m

Deal found 9/11£729

Wed 17/306:30 -

1 stop10h 50m

Sun 28/309:30 -

1 stop18h 45m

Deal found 9/11£731

Wed 17/318:55 -

1 stop13h 05m

Sun 28/308:55 -

1 stop17h 37m

Deal found 6/11£732

Tue 16/318:55 -

1 stop10h 45m

Sat 17/412:30 -

1 stop14h 00m

Deal found 5/11£732

Fri 15/110:50 -

1 stop20h 10m

Fri 29/109:00 -

2 stops19h 59m

Deal found 9/11£735

Find flight deals from Kentucky to Heathrow

Round-trip from	£570
One-way from	£243
Popular in	June
Cheapest in	January
Average price	£929

United Airlines
21/3-23/3
3 total stops
39h 38m total
Kentucky to London

Search Deals

British Airways
3/5-31/12
1 total stop
14h 42m total
Kentucky to London

Search Deals

Highest demand for flights based on searches. 11% potential increase in price (£84 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (£13 potential savings vs. average return price).

Search Deals

Average for round-trip flights in November 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

Mon 3/5

13:43-09:25

1 stop14h 42m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£243

LouisvilleLondon

SDF Louisville Intl - LHR London Heathrow

SDFLHR

Louisville Intl

Mon 3/5

13:55-10:40

2 stops15h 45m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£251

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

LexingtonLondon

LEX Lexington Blue Grass - LHR London Heathrow

LEXLHR

Lexington Blue Grass

Mon 18/1

11:55-19:50

2 stops26h 55m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£321

LouisvilleLondon

SDF Louisville Intl - LHR London Heathrow

SDFLHR

Louisville Intl

Mon 7/12

11:44-09:05

2 stops16h 21m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£332

LexingtonLondon

LEX Lexington Blue Grass - LHR London Heathrow

LEXLHR

Lexington Blue Grass

Mon 18/1

11:55-11:35

1 stop18h 40m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£342

Fastest return journey

LouisvilleLondon

SDF Louisville Intl - LHR London Heathrow

SDFLHR

Louisville Intl

Mon 7/12

17:49-09:40

1 stop10h 51m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£345

LouisvilleLondon

SDF Louisville Intl - LHR London Heathrow

SDFLHR

Louisville Intl

Tue 24/11

11:42-07:50

1 stop15h 08m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£352

LouisvilleLondon

SDF Louisville Intl - LHR London Heathrow

SDFLHR

Louisville Intl

Fri 15/1

13:11-08:35

1 stop14h 24m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£378

LouisvilleLondon

SDF Louisville Intl - LHR London Heathrow

SDFLHR

Louisville Intl

Tue 24/11

09:17-07:10

3 stops16h 53m

London Heathrow

Wed 31/12

00:00-18:00

Nonstop0h 00m

£449

Flights are sorted by cheapest return flights first.

Deals found on 6/11

Showing 1-10 of 33 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 £1,098). 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.

Related info for your journey

How long is the flight from Kentucky to London Heathrow Airport?
United Airlines, British Airways, and Scandinavian Airlines can get you from Kentucky to London Heathrow Airport in just under 16h 35m. Your travel time can differ by up to 5h. 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 Lexington Blue Grass - 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 £1,098). 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

Wembley

Milton Keynes

Gatwick

Slough

Ilford

Hayes

Folkestone

Eastbourne

Croydon

Barnet

Northampton

Southall

Southend-on-Sea

Enfield

Brentford

Dover

Harrow

Watford

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

Newark to Gatwick flights

John F Kennedy Intl to Stansted flights

LaGuardia to Heathrow flights

John F Kennedy Intl to London City flights

Boston to Heathrow flights

Dulles Intl to Heathrow flights

LaGuardia to Gatwick flights

Los Angeles to Heathrow flights

Baltimore to Heathrow flights

Newark to Stansted flights

Newark to Luton flights

Newark to London City flights

San Francisco to Heathrow flights

O'Hare Intl to Heathrow flights

Seattle to Heathrow flights

Dallas/Fort Worth to Heathrow flights

Boston to Gatwick flights

Boston to London City flights

Orlando to Heathrow flights

Boston to Stansted flights

Dulles Intl to Gatwick flights

Atlanta to Heathrow flights

Reagan-National to Heathrow flights

Miami to Heathrow flights

Los Angeles to Gatwick flights

Dulles Intl to London City flights

Denver to Heathrow flights

Hobby to Heathrow flights

Los Angeles to Stansted flights

Boston to Luton flights

Los Angeles to London City flights

Philadelphia to Heathrow flights

Dulles Intl to Luton flights

San Francisco to Gatwick flights

Reagan-National to Gatwick flights

George Bush Intcntl to Heathrow flights

O'Hare Intl to Gatwick flights

Los Angeles to Luton flights

Orlando to Gatwick flights

Baltimore to Gatwick flights

San Francisco to Stansted flights

Sky Harbor Intl to Heathrow flights

LaGuardia to Stansted flights

O'Hare Intl to Stansted flights

O'Hare Intl to London City 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 3/5. 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 10 November 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 10 November 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 10 November 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 10 November 2026.

Last-minute flights from Kentucky to HeathrowDiscover last-minute flight deals from Kentucky to Heathrow. Data last updated 10 November 2026 and is based on user searches.

Discover last-minute flight deals from Kentucky to Heathrow. Data last updated 10 November 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 10 November 2026.

Search for one-way flight options from Kentucky to Heathrow. Find affordable one-way fares based on user searches. Data last updated 10 November 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?

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 10 November 2026.

Kentucky and Heathrow flights

Browse other Kentucky and Heathrow flight options. Last updated on 10 November 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 10 November 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 10 November 2026.

Last-minute flights from Kentucky to Heathrow
Discover last-minute flight deals from Kentucky to Heathrow. Data last updated 10 November 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 10 November 2026.