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Cheap flights from Kentucky to London Heathrow Airport from £167

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 25/3. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — LHR
27 Dec — 3 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Kentucky to Heathrow

Keep the following information in mind while searching for Kentucky to Heathrow flight deals. Data was last updated 27 November 2025.

Round-trip from

£420

One-way from

£167

Popular in

December

Cheapest in

October

Average price

£829
Lufthansa
  • Lufthansa
  • 10/1-17/1
  • 3 total stops
  • 29h 18m total
  • Kentucky to London
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British Airways
  • British Airways
  • 25/3
  • 1 total stop
  • 15h 45m total
  • Kentucky to London
Search Deals
Highest demand for flights based on searches. 20% potential increase in price (£150 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£26 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
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Find flight deals from Kentucky to Heathrow

Enter your travel dates to find the best prices.

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 27 November 2025.

Mon 8/1217:15LEX - LHR
2 stops13h 10mVirgin Atlantic
Wed 24/1213:00LHR - LEX
1 stop15h 07mVirgin Atlantic
Deal found 26/11£424
Mon 8/1218:02LEX - LHR
2 stops14h 43mDelta
Wed 24/1211:30LHR - LEX
2 stops16h 37mDelta
Deal found 26/11£461
Tue 9/1211:04LEX - LHR
1 stop18h 21mBritish Airways
Tue 23/1214:10LHR - LEX
1 stop14h 12mBritish Airways
Deal found 26/11£463
Fri 5/1206:00CVG - LHR
1 stop19h 25mDelta
Tue 9/1206:20LHR - CVG
1 stop14h 00mDelta
Deal found 26/11£476
Tue 9/1207:00LEX - LHR
2 stops19h 10mUnited Airlines
Tue 23/1218:00LHR - LEX
2 stops32h 04mUnited Airlines
Deal found 27/11£477
Wed 3/1214:06CVG - LHR
1 stop11h 14mIberia
Sun 7/1214:10LHR - CVG
1 stop13h 36mIberia
Deal found 26/11£479
Tue 9/1214:10LEX - LHR
1 stop10h 45mLufthansa
Tue 23/1207:25LHR - LEX
1 stop14h 40mLufthansa
Deal found 27/11£479
Wed 3/1219:45CVG - LHR
1 stop10h 05mMultiple Airlines
Sun 7/1209:00LHR - CVG
2 stops16h 45mMultiple Airlines
Deal found 26/11£481
Fri 5/1217:04CVG - LHR
1 stop11h 11mAmerican Airlines
Tue 9/1215:05LHR - CVG
Nonstop8h 50mAmerican Airlines
Deal found 26/11£482
Tue 2/1211:20CVG - LHR
2 stops14h 50mUnited Airlines
Tue 9/1206:35LHR - CVG
2 stops16h 25mUnited Airlines
Deal found 25/11£483
Fri 5/1217:55EVV - LHR
1 stop11h 45mDelta
Tue 9/1208:55LHR - EVV
2 stops30h 31mDelta
Deal found 26/11£484
Fri 5/1210:12TRI - LHR
1 stop15h 13mDelta
Tue 9/1211:30LHR - TRI
2 stops16h 04mDelta
Deal found 25/11£484

Cheapflights Fare Finder

 
Customise your flight search to find flights from Kentucky to Heathrow that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 27 November 2025.
Use the filters below to find and compare flights from Kentucky to London Heathrow Airport that are best for you.

Fly from

Kentucky

Fly to

Heathrow

Route

Depart

Return

Price

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Sat 10/1

14:10-06:40

1 stop11h 30m

London Heathrow

Sat 17/1

07:40-20:28

2 stops17h 48m

£420

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Thu 5/3

12:30-09:20

2 stops15h 50m

London Heathrow

Mon 16/3

06:40-22:37

2 stops19h 57m

£453

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Mon 2/2

13:00-08:05

2 stops14h 05m

London Heathrow

Wed 11/2

11:30-23:45

2 stops17h 15m

£455

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Wed 4/2

15:32-07:50

1 stop11h 18m

London Heathrow

Sun 8/2

11:45-23:50

2 stops17h 05m

£455

CincinnatiLondon

CVG - LHR

CVGLHR

Cincinnati Cinci./N. Kentucky

Tue 13/1

18:00-09:20

1 stop10h 20m

London Heathrow

Fri 23/1

10:45-18:52

1 stop13h 07m

£457

CincinnatiLondon

CVG - LHR

CVGLHR

Cincinnati Cinci./N. Kentucky

Wed 14/1

18:00-09:20

1 stop10h 20m

London Heathrow

Thu 22/1

08:55-16:59

1 stop13h 04m

£457

CincinnatiLondon

CVG - LHR

CVGLHR

Cincinnati Cinci./N. Kentucky

Sun 15/3

14:20-17:40

2 stops23h 20m

London Heathrow

Thu 19/3

21:05-22:12

3 stops29h 07m

£458

CincinnatiLondon

CVG - LHR

CVGLHR

Cincinnati Cinci./N. Kentucky

Thu 8/1

12:45-14:35

2 stops20h 50m

London Heathrow

Thu 15/1

06:40-22:12

2 stops20h 32m

£463

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Tue 31/3

17:01-21:40

2 stops23h 39m

London Heathrow

Tue 14/4

06:40-23:46

2 stops22h 06m

£464

LexingtonLondon

LEX - LHR

LEXLHR

Lexington Blue Grass

Tue 21/4

07:10-13:30

1 stop25h 20m

London Heathrow

Fri 1/5

08:40-21:33

2 stops17h 53m

£464

Flights are sorted by cheapest return flights first.

Deals found on 25/11

Showing 1-10 of 60 results
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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.
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

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

Currently, November is the cheapest month in which you can book a flight from Kentucky to London Heathrow Airport (average of £433). Flying from Kentucky to London Heathrow Airport in June is currently the most expensive (average of £695). 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.

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

Find hourly flight availability from Kentucky to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 27 November 2025.

When flying from Kentucky to London Heathrow Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 22% versus a flight in the morning.

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

Related info for your journey

Find useful and relevant information for your journey from Kentucky to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    Lufthansa, Scandinavian Airlines, and Delta can get you from Kentucky to London Heathrow Airport in just under 11h 30m. Your travel time can differ by up to 4h 20m. Kentucky and London Heathrow Airport are separated by a distance of 4033 mi. Both multi-stop and direct flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Kentucky to London Heathrow Airport one-way?

    For one-way options, check prices for British Airways. According to our data, you can fly for as low as £167. Users have also found prices from £167 and £245 on American Airlines and JetBlue, respectively.

  • 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 Knoxville McGhee Tyson - 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, November is the cheapest month in which you can book a flight from Kentucky to London Heathrow Airport (average of £433). Flying from Kentucky to London Heathrow Airport in June is currently the most expensive (average of £695). 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

Travelling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Milton Keynes
Slough
Croydon
Hounslow
Northampton
Gatwick
Luton
Ilford
Wembley
Deal
Hayes
Colchester
Watford
Brentford
Winchester
Swindon
Crawley
Romford
Chichester
Bedford

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Alternative routes for Kentucky to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
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How does Cheapflights help users find flights from Kentucky to Heathrow?

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

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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.

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