HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
London

$217+ Cheap flights from Kentucky to London (LON)

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 7/27. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — LON
Jul 7 — Jul 141
Tue 7/7
Tue 7/14
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Kentucky to London with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Kentucky to London

Cheapest flights from Kentucky to London
Explore the most affordable flight options available from Kentucky to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 7, 2026.

This United Airlines deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/98:26 am
TYS
-
LHR
1 stop18h 29m
United Airlines
Wed 11/116:50 am
LHR
-
TYS
2 stops14h 59m
United Airlines
Deal found 6/4$775
This Cheapflightsfares deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/303:55 pm
TYS
-
LHR
2 stops19h 05m
Scandinavian Airlines
Fri 12/116:40 am
LHR
-
TYS
2 stops20h 05m
Scandinavian Airlines
Deal found 6/6$850
This Iberia deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/143:31 pm
SDF
-
LHR
2 stops14h 04m
Iberia
Wed 10/216:15 am
LHR
-
SDF
2 stops21h 40m
Iberia
Deal found 6/3$874
This FlightHub deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/23:24 pm
SDF
-
LHR
2 stops25h 16m
Scandinavian Airlines
Mon 12/76:40 am
LHR
-
SDF
2 stops20h 55m
Scandinavian Airlines
Deal found 6/5$875
This Expedia deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/21:02 pm
SDF
-
LHR
1 stop16h 23m
Iberia
Mon 12/711:25 am
LHR
-
SDF
2 stops39h 35m
Iberia
Deal found 6/5$877
This Cheapflightsfares deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/303:55 pm
TYS
-
LHR
2 stops19h 05m
Scandinavian Airlines
Wed 12/96:40 am
LHR
-
TYS
2 stops22h 06m
Scandinavian Airlines
Deal found 6/5$878
This Scandinavian Airlines deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/25:57 pm
TYS
-
LHR
2 stops22h 43m
Scandinavian Airlines
Wed 12/96:40 am
LHR
-
TYS
2 stops20h 05m
Scandinavian Airlines
Deal found 6/6$880
This FlightHub deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/912:38 pm
SDF
-
LHR
1 stop13h 17m
British Airways
Tue 9/226:15 am
LHR
-
SDF
2 stops17h 55m
British Airways
Deal found 6/6$886
This Scandinavian Airlines deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/305:57 pm
TYS
-
LHR
2 stops18h 43m
Scandinavian Airlines
Thu 12/109:05 pm
LHR
-
TYS
3 stops29h 40m
Scandinavian Airlines
Deal found 6/4$888
This Expedia deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/27:12 pm
SDF
-
LHR
1 stop11h 58m
British Airways
Wed 9/233:00 pm
LHR
-
SDF
1 stop13h 22m
British Airways
Deal found 6/2$888
This oojo deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1412:38 pm
SDF
-
LHR
1 stop15h 47m
British Airways
Wed 9/2311:00 am
LHR
-
SDF
1 stop15h 43m
British Airways
Deal found 6/4$893
This Iberia deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1410:29 am
SDF
-
LHR
1 stop19h 21m
Iberia
Wed 9/236:15 am
LHR
-
SDF
2 stops21h 18m
Iberia
Deal found 6/6$896

Find flight deals from Kentucky to London

Keep the following information in mind while searching for Kentucky to London flight deals. Data was last updated June 7, 2026.

Most accurate provider

Ovago
3 stars

Most trusted provider

Ovago
3 stars

Round-trip from

$775
(United Airlines)

One-way from

$217
(Kiwi.com)

Popular in

June

Cheapest in

October

Average price

$1,359
Provider with most accurate pricing for Louisville Intl-London (LON) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Louisville Intl-London (LON) flights.
Search Deals
From Kentucky to London (LON)
Search Deals
One-way flight from Kentucky to London (LON)
Search Deals
Highest demand for flights based on searches. 20% potential increase in price ($255 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($35 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Kentucky to London 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 2,558,603 searches. Data last updated June 7, 2026.
Use the filters below to find and compare flights from Kentucky to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Mon 8/17

6:02 pm-11:55 am

1 stop12h 53m

London Heathrow

Thu 8/27

6:50 am-4:58 pm

2 stops15h 08m

$964

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Wed 9/2

6:15 pm-1:05 pm

1 stop13h 50m

London Heathrow

Wed 9/9

6:30 am-6:17 pm

2 stops16h 47m

$965

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Wed 8/19

12:01 pm-7:10 am

2 stops14h 09m

London Heathrow

Wed 9/2

6:30 am-4:41 pm

2 stops15h 11m

$970

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Wed 9/2

6:52 pm-11:15 am

1 stop11h 23m

London Heathrow

Wed 9/9

9:45 am-7:43 pm

1 stop14h 58m

$994

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Thu 8/13

7:20 pm-10:40 am

1 stop10h 20m

London Heathrow

Wed 8/19

6:55 am-11:59 pm

2 stops22h 04m

$1,014

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Mon 7/27

11:57 am-6:45 am

2 stops13h 48m

London Heathrow

Wed 8/12

6:30 am-5:19 pm

2 stops15h 49m

$1,016

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Thu 8/13

11:38 am-8:50 am

2 stops16h 12m

London Heathrow

Wed 8/19

8:40 am-8:10 pm

2 stops16h 30m

$1,019

NashvilleLondon

BNA - LHR

BNALHR

Nashville Intl

Sat 8/15

8:40 am-6:30 am

1 stop15h 50m

London Heathrow

Wed 9/16

8:40 am-3:19 pm

1 stop12h 39m

$1,023

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Mon 7/27

6:05 pm-11:20 am

1 stop12h 15m

London Heathrow

Wed 8/12

9:20 am-8:10 pm

1 stop15h 50m

$1,033

KnoxvilleLondon

TYS - LHR

TYSLHR

Knoxville McGhee Tyson

Mon 8/17

4:38 pm-6:30 pm

2 stops20h 52m

London Heathrow

Thu 8/27

7:05 am-11:52 pm

3 stops21h 47m

$1,035

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/4

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
6

Best time to book a flight from Kentucky to London

Have a flexible travel schedule? Discover the best time to fly to London from Kentucky with our price prediction graph.
Estimated round-trip 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

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

Currently, April is the cheapest month in which you can book a flight from Kentucky to London (average of $451). Flying from Kentucky to London in June is currently the most expensive (average of $948). 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 to fly round-trip from Kentucky to London?

How far ahead should I book a flight from Kentucky to London?

To ensure you get the cheapest price possible for a flight from Kentucky to London, you should look to book at least 27 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

Related info for your journey

Find useful and relevant information for your journey from Kentucky to London. 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?

    There are many flights that can get you from Kentucky to London in 11h 23m. Fly via United Airlines, Delta, or British Airways to get the fastest option. Kentucky and London are separated by a distance of 4076 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the most popular routes from Kentucky to London?

    While some choose either Cincinnati Cinci./N. Kentucky - London Heathrow or Nashville Intl - London Gatwick, Nashville Intl - London Heathrow is the most popular route from Kentucky to London.

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

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

  • How can I find direct flights from Kentucky to London?

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

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

    Yes. Cheapflights offers flight deals from Kentucky to London 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?

    Currently, April is the cheapest month in which you can book a flight from Kentucky to London (average of $451). Flying from Kentucky to London in June is currently the most expensive (average of $948). 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

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Ilford
Dorking
Hounslow
Winchester
Croydon
Gatwick
Southend-on-Sea
Wembley
Harrow
Eastleigh
Dartford
Dover
Orpington
Watford
Chipping Norton
Hayes
Kingston upon Thames
Eastbourne
Slough
Stansted

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.

Top 6 airlines flying from Kentucky to London

Discover the top 6 airlines that operate flights from Kentucky to London. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 7, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$573Average$883FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$574Average$716FlexibilityNo cancel feeOn-time75%
Virgin AtlanticCheapest$577Average$774FlexibilityNo cancel feeOn-time72%
British AirwaysCheapest$589Average$1,005FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$631Average$943FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$678Average$1,091FlexibilityNo cancel feeOn-time69%

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.