HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
London

$248+ Cheap flights from Louisville (SDF) 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 7/14. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — LON
Feb 20 — Feb 271
Fri 2/20
Fri 2/27
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Louisville 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 Louisville to London

Cheapest flights from Louisville to London
Explore the most affordable flight options available from Louisville to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 21, 2026.

This oojo deal was found by Cheapflights users on 1/20. 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.
Wed 4/812:15 pm
SDF
-
LHR
1 stop18h 00m
British Airways
Mon 4/137:25 pm
LHR
-
SDF
2 stops31h 03m
British Airways
Deal found 1/20$592
This FlightHub deal was found by Cheapflights users on 1/21. 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 2/1812:07 pm
SDF
-
LHR
1 stop17h 18m
Multiple Airlines
Wed 2/256:15 am
LHR
-
SDF
2 stops22h 01m
Multiple Airlines
Deal found 1/21$600
This Cheapflightsfares deal was found by Cheapflights users on 1/21. 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.
Wed 2/186:12 pm
SDF
-
LHR
1 stop12h 23m
British Airways
Wed 2/252:45 pm
LHR
-
SDF
1 stop14h 28m
British Airways
Deal found 1/21$604
This oojo deal was found by Cheapflights users on 1/21. 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.
Tue 3/36:50 pm
SDF
-
LHR
1 stop12h 10m
British Airways
Thu 3/1211:45 am
LHR
-
SDF
1 stop14h 55m
British Airways
Deal found 1/21$605
This Priceline deal was found by Cheapflights users on 1/21. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/182:01 pm
SDF
-
LHR
1 stop14h 59m
Finnair
Wed 2/258:20 am
LHR
-
SDF
1 stop19h 18m
Finnair
Deal found 1/21$608
This FlightHub deal was found by Cheapflights users on 1/21. 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 8/262:18 pm
SDF
-
LHR
1 stop15h 37m
Multiple Airlines
Wed 9/27:50 am
LHR
-
SDF
2 stops20h 11m
Multiple Airlines
Deal found 1/21$619
This Iberia deal was found by Cheapflights users on 1/21. 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.
Tue 3/312:07 pm
SDF
-
LCY
2 stops20h 58m
Iberia
Thu 3/127:50 am
LCY
-
SDF
2 stops17h 36m
Iberia
Deal found 1/21$619
This Cheapflightsfares deal was found by Cheapflights users on 1/21. 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 4/209:43 am
SDF
-
LHR
1 stop16h 12m
British Airways
Thu 4/304:25 pm
LHR
-
SDF
1 stop22h 51m
British Airways
Deal found 1/21$620
This oojo deal was found by Cheapflights users on 1/20. 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 8/174:00 pm
SDF
-
LHR
1 stop11h 00m
British Airways
Tue 8/253:00 pm
LHR
-
SDF
1 stop12h 47m
British Airways
Deal found 1/20$621
This Iberia deal was found by Cheapflights users on 1/21. 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.
Tue 3/312:07 pm
SDF
-
LHR
2 stops18h 58m
Iberia
Thu 3/1212:35 pm
LHR
-
SDF
1 stop12h 51m
Iberia
Deal found 1/21$622
This American Airlines deal was found by Cheapflights users on 1/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/65:00 am
SDF
-
LGW
2 stops21h 30m
American Airlines
Fri 3/1311:20 am
LGW
-
SDF
2 stops27h 38m
American Airlines
Deal found 1/20$622
This FlightHub deal was found by Cheapflights users on 1/21. 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.
Thu 2/196:12 pm
SDF
-
LHR
1 stop11h 13m
Multiple Airlines
Thu 2/266:15 am
LHR
-
SDF
2 stops20h 11m
Multiple Airlines
Deal found 1/21$625

Find flight deals from Louisville to London

Discover tips and strategies to find the most affordable flight options for your journey from Louisville (SDF) to London (LON). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 21, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$592
(oojo)

One-way from

$248
(oojo)

Popular in

June

Cheapest in

October

Average price

$782
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 Louisville Intl to London (LON)
Search Deals
One-way flight from Louisville Intl to London (LON)
Search Deals
Highest demand for flights based on searches. 20% potential increase in price ($238 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 January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Louisville 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 January 21, 2026.
Use the filters below to find and compare flights from Louisville to London that are best for you.

Fly from

Louisville

Fly to

London

Route

Depart

Return

Price

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Wed 2/18

12:07 pm-10:25 am

1 stop17h 18m

London Heathrow

Wed 2/25

6:15 am-11:16 pm

2 stops22h 01m

$600

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Wed 2/18

2:01 pm-10:00 am

1 stop14h 59m

London Heathrow

Wed 2/25

8:20 am-10:38 pm

1 stop19h 18m

$608

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Mon 4/20

4:33 pm-8:00 am

1 stop10h 27m

London Heathrow

Thu 4/30

4:25 pm-10:16 am

1 stop22h 51m

$619

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Thu 2/19

1:50 pm-9:45 am

2 stops14h 55m

London Heathrow

Thu 2/26

9:30 am-11:59 pm

2 stops19h 29m

$628

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Thu 2/19

6:23 pm-12:15 pm

1 stop12h 52m

London Heathrow

Thu 2/26

2:45 pm-10:43 pm

1 stop12h 58m

$630

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Wed 2/18

10:45 am-7:10 am

2 stops15h 25m

London Heathrow

Wed 2/25

6:50 am-8:09 pm

2 stops18h 19m

$633

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Thu 2/19

6:15 am-8:35 pm

2 stops33h 20m

London Heathrow

Mon 2/23

9:00 am-7:56 pm

2 stops39h 56m

$635

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Fri 3/6

7:05 am-11:20 am

2 stops23h 15m

London Heathrow

Fri 3/13

6:50 am-7:31 pm

2 stops16h 41m

$637

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Sun 3/8

8:15 am-8:35 pm

2 stops32h 20m

London Heathrow

Sun 3/15

9:00 am-1:06 pm

2 stops56h 06m

$650

LouisvilleLondon

SDF - LGW

SDFLGW

Louisville Intl

Sun 5/24

9:41 am-10:00 am

1 stop19h 19m

London Gatwick

Wed 6/3

2:00 pm-3:36 pm

1 stop30h 36m

$892

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

Showing 1-10 of 49 results
1
2
3
...
5

Compare providers for flights from Louisville to London

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Louisville to London in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
OvagoPrice Accuracy2 starsTrust Score*2 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars
Trip.comPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Louisville-London flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Louisville-London flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Louisville-London flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Louisville-London flights, Cheapflights users trust Expedia the most. Expedia has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Louisville-London flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Louisville to London

Have a flexible travel schedule? Discover the best time to fly to London from Louisville 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 Louisville to London

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

Use this chart to determine the optimal time to book a round-trip flight from Louisville to London. Price data was last updated on January 16, 2026.

To ensure you get the cheapest price possible for a flight from Louisville to London, you should look to book at least 10 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.

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

Currently, November is the cheapest month in which you can book a flight from Louisville to London (average of $518). Flying from Louisville to London in June is currently the most expensive (average of $918). 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 Louisville to London?

What’s the top layover airport for flights from Louisville to London?

Share of 1-stop round-trip flights from Louisville to London chosen by Cheapflights users in the past 12 months, using the same layover each way.

Atlanta (ATL) – chosen by Cheapflights users on 60% of 1-stop itineraries from Louisville to London on Cheapflights.

What’s the cheapest layover airport for flights from Louisville to London?

Average round-trip fare for 1-stop flights from Louisville to London, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Charlotte (CLT) is the most affordable 1-stop option, with an average round-trip price of $620.

What’s the fastest layover option from Louisville to London?

Shortest average travel time for 1-stop one-way flights from Louisville to London, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Charlotte (CLT) have the shortest average one-way travel time for 1-stop routes: 10h 13m.

Which airport typically offers the quickest layover for flights from Louisville to London?

Average layover duration for 1-stop one-way flights from Louisville to London, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Charlotte (CLT) offer the fastest connection on this route, with an average layover time of 1h 22m.

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to London. Reviews last updated January 21, 2026.
Read through reviews of airlines operating flights from Louisville to London, such as Delta, Virgin Atlantic, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,088 reviews

Food

7.2

Crew

8.5

Overall

7.9

Comfort

7.9

Boarding

8.1

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,088 reviews
Delta
7.9
Good
8,088 reviews

Food

7.2

Crew

8.5

Overall

7.9

Comfort

7.9

Boarding

8.1

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Virgin Atlantic
7.5
Good
678 reviews
Delta
7.9
Good
8,088 reviews

Food

7.2

Crew

8.5

Overall

7.9

Comfort

7.9

Boarding

8.1

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,191 reviews
Delta
7.9
Good
8,088 reviews

Food

7.2

Crew

8.5

Overall

7.9

Comfort

7.9

Boarding

8.1

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,174 reviews
Delta
7.9
Good
8,088 reviews

Food

7.2

Crew

8.5

Overall

7.9

Comfort

7.9

Boarding

8.1

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
British Airways
6.7
Okay
7,690 reviews
Delta
7.9
Good
8,088 reviews

Food

7.2

Crew

8.5

Overall

7.9

Comfort

7.9

Boarding

8.1

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

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

  • What airport do you fly from for flights from Louisville to London?

    Louisville Intl (SDF) is the airport you will fly out of if you book a flight from Louisville to London. You should not have trouble finding flights to London from Louisville Intl; the airport handles an average of 0 outbound flights to London per day. You should also have plenty of airline options to choose from since 5 airlines have flights from the Louisville airport to London. It is only a 5.3 mi journey to Louisville Intl (SDF) from Louisville’s city center.

  • How long is the flight from Louisville to London?

    Departing from Louisville to London will take you 10h 27m. Airlines will cover a distance of 4033 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Louisville to London round-trip?

    Currently priced at $589, British Airways will fly you from Louisville to London and back. In addition to British Airways, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Virgin Atlantic and Delta - these airlines can fly you to your destination from $598 and $617, respectively. These flights start at 35% lower than the current average price 3 months from now.

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

    When deciding which route to take from Louisville to London consider Louisville Intl - London Heathrow, Louisville Intl - London Gatwick or Louisville Intl - London City as they are the most popular.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Louisville 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 Louisville to London?

    Currently, November is the cheapest month in which you can book a flight from Louisville to London (average of $518). Flying from Louisville to London in June is currently the most expensive (average of $918). 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
Hounslow
Southend-on-Sea
Harrow
Croydon
Eastleigh
Gatwick
Dartford
Dover
Winchester
Orpington
Watford
Hayes
Borehamwood
Aylesbury
Chipping Norton
Horley
Kingston upon Thames
Eastbourne
Sutton

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 Louisville to London

See prices for flight routes from nearby airports that may be better suited for you.
Nashville to Heathrow flights
Cincinnati to Heathrow flights
Cincinnati to Gatwick flights
Nashville to Gatwick flights
Cincinnati to London City flights
Cincinnati to Stansted flights
Nashville to Stansted flights
Nashville to London City flights
Knoxville to Heathrow flights
Cincinnati to Edinburgh flights
Nashville to Edinburgh flights
Louisville to Heathrow flights
Lexington to Heathrow flights
Knoxville to London City flights
Knoxville to Gatwick flights
Louisville to Gatwick flights
Cincinnati to Manchester flights
Knoxville to Edinburgh flights
Lexington to Edinburgh flights
Nashville to Manchester flights
Lexington to London City flights
Louisville to Edinburgh flights
Nashville to Birmingham flights
Lexington to Manchester flights
Blountville to Heathrow flights
Louisville to Manchester flights
Knoxville to Manchester flights
Cincinnati to Luton flights
Lexington to Gatwick flights
Nashville to Southampton flights
Cincinnati to Birmingham flights
Huntington to Heathrow flights
Knoxville to Birmingham flights
Nashville to Newcastle upon Tyne flights
Nashville to Leeds flights
Louisville to Birmingham flights
Nashville to Bristol flights
Cincinnati to Leeds flights
Evansville to Leeds flights
Evansville to Heathrow flights
Lexington to Birmingham flights
Louisville to Bristol flights
Blountville to Gatwick flights
Cincinnati to Bristol flights
Evansville to Gatwick flights
Blountville to London City flights

Top 5 airlines flying from Louisville to London

Discover the top 5 airlines that operate flights from Louisville 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 January 21, 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$589Average$795FlexibilityNo cancel feeOn-time70%
Virgin AtlanticCheapest$598Average$1,187FlexibilityNo cancel feeOn-time72%
DeltaCheapest$617Average$1,039FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$665Average$882FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$678Average$874FlexibilityNo 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.