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Cheap flights from Kentucky to London Heathrow Airport from £128

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 18/8. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — LHR
21 Aug — 28 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap 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 22 July 2026.

Wed 11/1110:03
SDF
-
LHR
1 stop17h 32m
Iberia
Wed 18/1107:35
LHR
-
SDF
2 stops19h 01m
Iberia
Deal found 17/7£642
Tue 20/1010:26
SDF
-
LHR
1 stop19h 24m
Iberia
Tue 3/1106:05
LHR
-
SDF
2 stops20h 31m
Iberia
Deal found 18/7£643
Mon 21/917:59
SDF
-
LHR
1 stop13h 16m
Iberia
Tue 29/906:15
LHR
-
SDF
2 stops21h 18m
Iberia
Deal found 22/7£646
Wed 28/1010:04
EVV
-
LHR
1 stop16h 46m
Virgin Atlantic
Tue 3/1106:30
LHR
-
EVV
2 stops21h 28m
Virgin Atlantic
Deal found 20/7£652
Wed 4/1117:00
EVV
-
LHR
1 stop12h 40m
Delta
Wed 11/1108:40
LHR
-
EVV
2 stops19h 23m
Delta
Deal found 21/7£653
Sun 6/1217:45
EVV
-
LHR
1 stop11h 55m
Delta
Tue 15/1206:30
LHR
-
EVV
2 stops16h 24m
Delta
Deal found 21/7£654
Wed 11/1112:57
SDF
-
LHR
1 stop13h 23m
British Airways
Mon 16/1119:05
LHR
-
SDF
2 stops28h 21m
British Airways
Deal found 19/7£656
Sun 25/1011:35
TYS
-
LHR
1 stop18h 50m
Iberia
Wed 4/1106:15
LHR
-
TYS
2 stops21h 25m
Iberia
Deal found 17/7£657
Wed 4/1111:31
TYS
-
LHR
1 stop16h 04m
Iberia
Wed 11/1106:15
LHR
-
TYS
2 stops22h 32m
Iberia
Deal found 20/7£658
Tue 3/1117:00
EVV
-
LHR
1 stop12h 40m
Delta
Tue 10/1106:20
LHR
-
EVV
2 stops16h 34m
Delta
Deal found 21/7£659
Mon 21/913:53
TYS
-
LHR
1 stop13h 37m
United Airlines
Tue 29/906:50
LHR
-
TYS
2 stops18h 29m
United Airlines
Deal found 21/7£660
Wed 4/1119:20
TYS
-
LHR
1 stop10h 30m
United Airlines
Wed 11/1106:50
LHR
-
TYS
2 stops15h 12m
United Airlines
Deal found 20/7£661

Find flight deals from Kentucky to Heathrow

Keep the following information in mind while searching for Kentucky to Heathrow flight deals. Data was last updated 22 July 2026.

Round-trip from

£642

One-way from

£128

Popular in

June

Cheapest in

November

Average price

£958
Iberia
  • Iberia
  • 11/11-18/11
  • 3 total stops
  • 36h 33m total
  • Kentucky to London
Search Deals
Aer Lingus
  • Aer Lingus
  • 18/8
  • 2 total stops
  • 16h 00m total
  • Kentucky to London
Search Deals
Highest demand for flights based on searches. 22% potential increase in price (£159 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£19 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

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 22 July 2026.
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 - LHR

SDFLHR

Louisville Intl

Tue 6/10

18:30-10:25

1 stop10h 55m

London Heathrow

Wed 14/10

06:50-17:40

2 stops15h 50m

£661

EvansvilleLondon

EVV - LHR

EVVLHR

Evansville Dress Regional

Wed 13/1

10:05-06:50

2 stops14h 45m

London Heathrow

Tue 19/1

06:30-16:54

2 stops16h 24m

£665

LexingtonLondon

LEX - LHR

LEXLHR

Lexington Blue Grass

Sun 29/11

19:49-07:55

1 stop31h 06m

London Heathrow

Wed 2/12

07:30-22:30

2 stops20h 00m

£677

BlountvilleLondon

TRI - LHR

TRILHR

Blountville Tri Cities TN/VA

Thu 3/12

19:00-08:45

2 stops32h 45m

London Heathrow

Sun 6/12

07:40-00:14

1 stop21h 34m

£679

EvansvilleLondon

EVV - LHR

EVVLHR

Evansville Dress Regional

Wed 14/10

10:04-06:25

1 stop14h 21m

London Heathrow

Wed 28/10

08:55-17:19

1 stop13h 24m

£682

EvansvilleLondon

EVV - LHR

EVVLHR

Evansville Dress Regional

Fri 13/11

17:45-11:40

1 stop11h 55m

London Heathrow

Wed 18/11

06:30-16:54

2 stops16h 24m

£691

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Sun 4/10

13:50-11:55

1 stop17h 05m

London Heathrow

Mon 12/10

06:50-17:40

2 stops15h 50m

£698

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Mon 5/10

06:15-21:35

1 stop10h 20m

London Heathrow

Mon 12/10

06:50-19:11

2 stops17h 21m

£698

EvansvilleLondon

EVV - LHR

EVVLHR

Evansville Dress Regional

Wed 2/9

15:16-10:40

2 stops13h 24m

London Heathrow

Wed 9/9

06:30-20:57

2 stops20h 27m

£699

LexingtonLondon

LEX - LHR

LEXLHR

Lexington Blue Grass

Wed 19/8

16:54-07:50

1 stop9h 56m

London Heathrow

Tue 25/8

07:50-23:58

2 stops21h 08m

£701

Flights are sorted by cheapest return flights first.

Deals found on 17/7

Showing 1-10 of 60 resultsSorted by cheapest first
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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, February is the cheapest month in which you can book a flight from Kentucky to London Heathrow Airport (average of £470). 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.

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?

    United Airlines, KLM, and Delta can get you from Kentucky to London Heathrow Airport in just under 10h 55m. Your travel time can differ by up to 3h 50m. 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 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, February is the cheapest month in which you can book a flight from Kentucky to London Heathrow Airport (average of £470). 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

Travelling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Hounslow
Milton Keynes
Luton
Wembley
Gatwick
Slough
Ilford
Hayes
Croydon
Colchester
Brentford
Eastbourne
Northampton
Watford
Swindon
Southend-on-Sea
Poole
Kingston upon Thames
Southall
Aylesbury

Browse thousands of different options on Cheapflights for your next trip

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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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Boston to Gatwick flights
Newark to Stansted flights
Atlanta to Heathrow flights
Orlando to Heathrow flights
Newark to Luton flights
Miami to Heathrow flights
Hobby to Heathrow flights
Boston to London City flights
Dulles Intl to Gatwick flights
Philadelphia to Heathrow flights
Reagan-National to Heathrow flights
Dulles Intl to London City flights
Boston to Stansted flights
Los Angeles to Gatwick flights
Denver to Heathrow flights
Baltimore to Gatwick flights
George Bush Intcntl to Heathrow flights
San Francisco to Gatwick flights
Los Angeles to Stansted flights
Reagan-National to Gatwick flights
San Francisco to London City flights
O'Hare Intl to Stansted flights
Sky Harbor Intl to Heathrow flights
O'Hare Intl to Gatwick flights
Orlando to Gatwick flights
San Francisco to Stansted flights
Raleigh to Heathrow flights
Los Angeles to London City flights
Detroit to Heathrow flights
O'Hare Intl to London City flights
Minneapolis to Heathrow flights

Fly with Cheapflights

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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.

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