HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
United Kingdom

$394+ Cheap flights from Louisville (SDF) to the United Kingdom

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 11/18. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — LHR
Nov 28 — Dec 51
Fri 11/28
Fri 12/5
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Louisville to United Kingdom 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 United Kingdom

Keep the following information in mind while searching for Louisville to United Kingdom flight deals. Data was last updated October 29, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$586
(Flighttix)

One-way from

$394
(United Airlines)

Popular in

June

Cheapest in

August

Average price

$787
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 United Kingdom
Search Deals
One-way flight from Louisville Intl to United Kingdom
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($207 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($33 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Find flight deals from Louisville to United Kingdom

Cheapest flights from Louisville to United Kingdom
Explore the most affordable flight options available from Louisville to United Kingdom. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 29, 2025.

This Rumbo deal was found by Cheapflights users on 10/26. 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 Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/278:15 pmSDF - LHR
1 stop11h 25mVirgin Atlantic
Tue 11/1110:45 amLHR - SDF
1 stop13h 27mVirgin Atlantic
Deal found 10/26$574
This KLM deal was found by Cheapflights users on 10/26. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/273:11 pmSDF - LHR
1 stop12h 39mKLM
Tue 11/1111:45 amLHR - SDF
2 stops14h 29mKLM
Deal found 10/26$585
This Flighttix deal was found by Cheapflights users on 10/28. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/2512:37 pmSDF - LHR
1 stop13h 28mVirgin Atlantic
Tue 12/211:05 amLHR - SDF
1 stop12h 40mVirgin Atlantic
Deal found 10/28$586
This Delta deal was found by Cheapflights users on 10/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2910:30 amSDF - LHR
1 stop18h 15mDelta
Wed 11/511:30 amLHR - SDF
2 stops16h 04mDelta
Deal found 10/27$592
This KLM deal was found by Cheapflights users on 10/27. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/283:11 pmSDF - LHR
1 stop12h 39mKLM
Wed 11/511:45 amLHR - SDF
2 stops14h 30mKLM
Deal found 10/27$593
This Delta deal was found by Cheapflights users on 10/26. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2712:54 pmSDF - LHR
2 stops15h 11mDelta
Tue 11/1111:30 amLHR - SDF
2 stops17h 36mDelta
Deal found 10/26$596
This Delta deal was found by Cheapflights users on 10/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2810:30 amSDF - LHR
2 stops16h 35mDelta
Tue 11/410:00 amLHR - SDF
2 stops16h 15mDelta
Deal found 10/27$597
This KLM deal was found by Cheapflights users on 10/27. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/293:11 pmSDF - LHR
1 stop12h 39mKLM
Fri 11/73:50 pmLHR - SDF
1 stop13h 11mKLM
Deal found 10/27$599
This Delta deal was found by Cheapflights users on 10/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2912:54 pmSDF - LHR
2 stops14h 11mDelta
Fri 11/73:50 pmLHR - SDF
1 stop13h 11mDelta
Deal found 10/27$604
This Mytrip deal was found by Cheapflights users on 10/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2611:00 amSDF - LHR
2 stops15h 10mMultiple Airlines
Wed 12/38:45 amLHR - SDF
2 stops18h 44mMultiple Airlines
Deal found 10/29$610
This United Airlines deal was found by Cheapflights users on 10/29. 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.
Wed 11/262:02 pmSDF - LHR
1 stop10h 53mUnited Airlines
Wed 12/36:50 amLHR - SDF
2 stops15h 26mUnited Airlines
Deal found 10/29$620
This lastminute.com deal was found by Cheapflights users on 10/28. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/272:53 pmSDF - EDI
2 stops13h 52mVirgin Atlantic
Wed 12/105:50 amEDI - SDF
2 stops18h 22mVirgin Atlantic
Deal found 10/28$627

Cheapflights Fare Finder

 
Customize your flight search to find flights from Louisville to United Kingdom 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 October 29, 2025.
Use the filters below to find and compare flights from Louisville to the United Kingdom that are best for you.

Fly from

Louisville

Fly to

United Kingdom

Route

Depart

Return

Price

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Tue 11/25

10:37 am-7:50 am

1 stop16h 13m

London Heathrow

Tue 12/9

6:20 am-5:36 pm

2 stops16h 16m

$592

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Tue 11/25

3:09 pm-9:00 am

1 stop12h 51m

London Heathrow

Tue 12/9

11:05 am-6:45 pm

1 stop12h 40m

$599

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Wed 12/10

12:58 pm-7:50 am

1 stop13h 52m

London Heathrow

Wed 12/17

1:05 pm-11:59 pm

2 stops15h 54m

$604

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Tue 11/25

10:37 am-7:05 am

2 stops15h 28m

London Heathrow

Tue 12/2

11:05 am-11:59 pm

2 stops17h 54m

$604

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Wed 11/26

6:07 pm-11:15 am

1 stop12h 08m

London Heathrow

Wed 12/3

9:00 am-8:28 pm

2 stops16h 28m

$620

LouisvilleEdinburgh

SDF - EDI

SDFEDI

Louisville Intl

Thu 11/27

2:53 pm-9:45 am

2 stops13h 52m

Edinburgh Turnhouse

Wed 12/10

5:50 am-7:12 pm

2 stops18h 22m

$627

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Fri 11/28

9:00 am-7:10 am

2 stops17h 10m

London Heathrow

Fri 12/5

1:25 pm-7:27 pm

2 stops35h 02m

$634

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Fri 12/5

9:00 am-7:10 am

2 stops17h 10m

London Heathrow

Tue 12/9

11:10 am-10:29 pm

2 stops16h 19m

$635

LouisvilleLondon

SDF - LGW

SDFLGW

Louisville Intl

Fri 1/9

6:00 am-10:00 am

1 stop23h 00m

London Gatwick

Fri 1/16

2:00 pm-11:45 pm

1 stop14h 45m

$642

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Wed 11/26

2:02 pm-5:55 am

1 stop10h 53m

London Heathrow

Wed 12/3

12:00 pm-7:27 pm

1 stop12h 27m

$646

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/29

Showing 1-10 of 46 results
1
2
3
...
5

Best time to book a flight from Louisville to United Kingdom

Have a flexible travel schedule? Discover the best time to fly to United Kingdom 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 the United Kingdom

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

Currently, November is the cheapest month in which you can book a flight from Louisville to United Kingdom (average of $527). Flying from Louisville to United Kingdom in June is currently the most expensive (average of $789). 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 SDF to GB?

Find hourly flight availability from Louisville to United Kingdom. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 29, 2025.

It’s optimal to fly from Louisville to United Kingdom in the morning. By choosing this option you can save up to 21% on the cost of your flight, compared to a flight at noon.

What is the cheapest day to fly from Louisville to United Kingdom?

Use this chart to determine the cheapest time to fly round-trip from Louisville to United Kingdom. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Louisville to United Kingdom flight should consider departing on Thursday mornings when fares are most often at their lowest. Saturday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing United Kingdom

Get insights into the airlines that provide service to United Kingdom. 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 United Kingdom. Reviews last updated October 29, 2025.
See what other customers who have flown with Delta, Virgin Atlantic, and United Airlines from Louisville to the United Kingdom have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
7,994 reviews

Crew

8.5

Overall

7.9

Food

7.3

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Delta
7.9
Good
7,994 reviews
Delta
7.9
Good
7,994 reviews

Crew

8.5

Overall

7.9

Food

7.3

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Virgin Atlantic
7.5
Good
670 reviews
Delta
7.9
Good
7,994 reviews

Crew

8.5

Overall

7.9

Food

7.3

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
United Airlines
7.4
Good
9,001 reviews
Delta
7.9
Good
7,994 reviews

Crew

8.5

Overall

7.9

Food

7.3

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
American Airlines
7.2
Good
11,032 reviews
Delta
7.9
Good
7,994 reviews

Crew

8.5

Overall

7.9

Food

7.3

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
British Airways
6.7
Okay
7,483 reviews
Delta
7.9
Good
7,994 reviews

Crew

8.5

Overall

7.9

Food

7.3

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.

Related info for your journey

Find useful and relevant information for your journey from Louisville to United Kingdom. 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 United Kingdom?

    Louisville Intl (SDF), located 5.3 mi from the city center, is the airport you fly out of when you book flights from Louisville to United Kingdom.

  • How long is the flight from Louisville to United Kingdom?

    A quick flight from Louisville to United Kingdom can take about 12h 51m. Delta provides one of the quickest options available for as low as $599. The distance from Louisville to United Kingdom is about 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 to fly from Louisville to United Kingdom one-way?

    $394 is the cheapest one-way deal found within the past few days, from Air Canada. You may also be able to find cheap deals on United Airlines and Lufthansa, with prices starting from $394 and $397, respectively.

  • What are the most popular routes from Louisville to United Kingdom?

    While some choose either Louisville Intl - London City or Louisville Intl - Edinburgh Turnhouse, Louisville Intl - London Heathrow is the most popular route from Louisville to United Kingdom.

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

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

  • How can I find direct flights from Louisville to United Kingdom?

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

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

    Yes. Cheapflights offers flight deals from Louisville to United Kingdom 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 United Kingdom?

    Currently, November is the cheapest month in which you can book a flight from Louisville to United Kingdom (average of $527). Flying from Louisville to United Kingdom in June is currently the most expensive (average of $789). 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

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 United Kingdom

See prices for flight routes from nearby airports that may be better suited for you.
Nashville to Heathrow flights
Cincinnati to Heathrow flights
Nashville to Gatwick flights
Nashville to Dublin flights
Cincinnati to Charles de Gaulle flights
Cincinnati to Gatwick flights
Nashville to London City flights
Cincinnati to London City flights
Nashville to Charles de Gaulle flights
Cincinnati to Dublin flights
Nashville to Leonardo da Vinci/Fiumicino flights
Nashville to Madrid flights
Nashville to Orly flights
Nashville to Barcelona-El Prat flights
Cincinnati to Frankfurt flights
Cincinnati to Istanbul flights
Louisville to Malpensa flights
Cincinnati to Orly flights
Nashville to Stansted flights
Nashville to Lisbon flights
Cincinnati to Leonardo da Vinci/Fiumicino flights
Nashville to Frankfurt flights
Cincinnati to Malpensa flights
Knoxville to Charles de Gaulle flights
Cincinnati to Stansted flights
Nashville to Keflavik Intl flights
Cincinnati to Lisbon flights
Cincinnati to Madrid flights
Cincinnati to Barcelona-El Prat flights
Cincinnati to Linate flights
Nashville to Edinburgh flights
Cincinnati to Sabiha Gokcen flights
Cincinnati to Edinburgh flights
Nashville to Istanbul flights
Nashville to Amsterdam flights
Louisville to Heathrow flights
Nashville to Zurich flights
Louisville to Charles de Gaulle flights
Cincinnati to Oslo Gardermoen flights
Cincinnati to Bruxelles-National flights
Cincinnati to Amsterdam flights
Louisville to Frankfurt flights
Louisville to Istanbul flights
Knoxville to Dublin flights
Nashville to Vienna flights
Knoxville to Orly flights
Nashville to Athens flights
Lexington to Malpensa flights
Knoxville to Frankfurt flights

Top 6 airlines flying from Louisville to United Kingdom

Discover the top 6 airlines that operate flights from Louisville to United Kingdom. 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 October 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$574Average$795FlexibilityNo cancel feeOn-time75%
British AirwaysCheapest$598Average$845FlexibilityNo cancel feeOn-time70%
Virgin AtlanticCheapest$598Average$1,180FlexibilityNo cancel feeOn-time72%
American AirlinesCheapest$665Average$898FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$678Average$896FlexibilityNo cancel feeOn-time69%
DeltaCheapest$690Average$1,114FlexibilityNo cancel feeOn-timeN/A

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.