How long is the flight from Louisville to London?

Departing from Louisville to London will take you 14h 03m. 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 $574, KLM will fly you from Louisville to London and back. In addition to KLM, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Virgin Atlantic and British Airways - these airlines can fly you to your destination from $580 and $598, respectively. These flights start at 41% lower than the current average price 3 months from now.

In terms of precipitation, rainfall in London ranges from 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit London when rainfall is around 1.6 in.

If weather is an important factor for your trip to London, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

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 City or Louisville Intl - London Gatwick as they are the most popular.

What are the most popular airlines that fly from Louisville to London?

Before booking your flight from Louisville to London check out the most popular airlines for this route: American Airlines, Delta or Virgin Atlantic.

Most accurate provider : When it comes to deals on Louisville-London flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Louisville-London flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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.

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 6 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.

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.

$220+ Flights from Louisville to London

Q: How much does it cost to fly round-trip from Louisville to London?

Airfare is below average for this route at the moment. Louisville to London flights typically cost between $942 and $1,553 in January. The cheapest round-trip price found within the last 3 days was $619 on Multiple Airlines (Jan 18-Jan 31).

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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.

Cheapflights Tip: The best prices from Louisville Intl to London are usually found in October or August, booked 10 days in advance, depart on a Wednesday or Tuesday and return on a Thursday

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 December 23, 2025.

Wed 12/313:44 pmSDF - LHR

1 stop10h 36mMultiple Airlines

Thu 1/82:45 pmLHR - SDF

1 stop12h 27mMultiple Airlines

Deal found 12/21

$835

Tue 12/235:49 pmSDF - LHR

1 stop33h 26mBritish Airways

Tue 12/3011:45 amLHR - SDF

1 stop15h 29mBritish Airways

Deal found 12/21

$898

Wed 12/312:00 pmSDF - LHR

1 stop15h 25mBritish Airways

Thu 1/84:35 pmLHR - SDF

2 stops34h 37mBritish Airways

Deal found 12/21

$933

Wed 12/3110:14 amSDF - LHR

2 stops17h 31mDelta

Thu 1/811:30 amLHR - SDF

2 stops17h 25mDelta

Deal found 12/21

$960

Tue 12/235:49 pmSDF - LHR

1 stop11h 36mMultiple Airlines

Tue 12/302:10 pmLHR - SDF

1 stop12h 44mMultiple Airlines

Deal found 12/21

$974

Wed 12/313:44 pmSDF - LCY

2 stops24h 01mBritish Airways

Thu 1/82:45 pmLCY - SDF

2 stops32h 45mBritish Airways

Deal found 12/21

$1,097

Tue 12/231:50 pmSDF - LHR

2 stops15h 20mAmerican Airlines

Tue 12/301:10 pmLHR - SDF

2 stops16h 06mAmerican Airlines

Deal found 12/21

$1,179

Tue 12/238:00 amSDF - LHR

1 stop23h 00mAmerican Airlines

Sun 12/2811:00 amLHR - SDF

1 stop15h 54mAmerican Airlines

Deal found 12/21

$1,235

Tue 12/235:49 pmSDF - LHR

2 stops13h 06mAmerican Airlines

Mon 12/291:50 pmLHR - SDF

2 stops15h 26mAmerican Airlines

Deal found 12/21

$1,239

Tue 12/238:00 amSDF - LHR

1 stop23h 00mAmerican Airlines

Wed 12/314:30 pmLHR - SDF

1 stop32h 12mAmerican Airlines

Deal found 12/21

$1,336

Wed 12/315:05 amSDF - LGW

3 stops23h 40mMultiple Airlines

Thu 1/811:40 amLGW - SDF

3 stops30h 20mMultiple Airlines

Deal found 12/21

$2,228

Wed 12/312:00 pmSDF - LGW

2 stops24h 00mIberia

Thu 1/811:45 amLGW - SDF

2 stops40h 34mIberia

Deal found 12/21

$2,532

Best flights from Louisville to London
Discover carefully curated flight deals from Louisville to London that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 23, 2025.

Fri 2/209:00 amSDF - LHR

1 stop17h 55mUnited Airlines

Tue 2/246:50 amLHR - SDF

2 stops18h 19mUnited Airlines

Deal found 12/20

$628

Fri 2/205:35 amSDF - LHR

2 stops20h 35mAir Canada

Tue 2/249:00 amLHR - SDF

2 stops39h 55mAir Canada

Deal found 12/20

$637

Sun 1/182:13 pmSDF - LHR

1 stop16h 27mFinnair

Sat 1/318:20 amLHR - SDF

1 stop17h 27mFinnair

Deal found 12/21

$643

Wed 4/85:27 pmSDF - LHR

1 stop13h 48mBritish Airways

Mon 4/137:25 pmLHR - SDF

2 stops28h 37mBritish Airways

Deal found 12/21

$651

Thu 2/51:50 pmSDF - LCY

2 stops14h 30mLufthansa

Thu 2/129:40 amLCY - SDF

2 stops19h 19mLufthansa

Deal found 12/22

$684

Mon 4/612:33 pmSDF - LGW

1 stop16h 27mMultiple Airlines

Tue 4/142:00 pmLGW - SDF

1 stop26h 38mMultiple Airlines

Deal found 12/22

$706

Thu 2/58:29 amSDF - LHR

1 stop16h 26mUnited Airlines

Thu 2/126:50 amLHR - SDF

2 stops15h 29mUnited Airlines

Deal found 12/22

$628

Wed 2/42:10 pmSDF - LCY

2 stops13h 55mLufthansa

Wed 2/119:50 amLCY - SDF

2 stops18h 33mLufthansa

Deal found 12/20

$684

Wed 2/42:10 pmSDF - LHR

1 stop11h 30mUnited Airlines

Wed 2/116:50 amLHR - SDF

2 stops17h 41mUnited Airlines

Deal found 12/21

$628

Mon 4/612:33 pmSDF - LGW

1 stop16h 27mMultiple Airlines

Sun 4/122:00 pmLGW - SDF

1 stop26h 37mMultiple Airlines

Deal found 12/22

$713

Mon 3/161:58 pmSDF - LCY

2 stops15h 17mLufthansa

Mon 3/309:15 amLCY - SDF

2 stops16h 01mLufthansa

Deal found 12/22

$723

Thu 2/53:36 pmSDF - LGW

2 stops37h 24mMultiple Airlines

Thu 2/122:00 pmLGW - SDF

1 stop27h 21mMultiple Airlines

Deal found 12/22

$732

Mon 4/612:33 pmSDF - LGW

1 stop16h 27mMultiple Airlines

Mon 4/132:00 pmLGW - SDF

2 stops29h 33mMultiple Airlines

Deal found 12/22

$769

Fri 4/312:33 pmSDF - LGW

1 stop16h 27mMultiple Airlines

Tue 4/142:00 pmLGW - SDF

1 stop26h 38mMultiple Airlines

Deal found 12/22

$779

Mon 4/612:33 pmSDF - LGW

1 stop16h 27mMultiple Airlines

Thu 4/92:00 pmLGW - SDF

1 stop26h 37mMultiple Airlines

Deal found 12/22

$782

Sat 6/137:16 pmSDF - LCY

2 stops42h 54mIberia

Sun 6/214:20 pmLCY - SDF

2 stops35h 39mIberia

Deal found 12/21

$2,344

Fri 4/312:33 pmSDF - LGW

1 stop16h 27mMultiple Airlines

Sun 4/122:00 pmLGW - SDF

1 stop26h 37mMultiple Airlines

Deal found 12/22

$786

Wed 4/812:33 pmSDF - LGW

1 stop16h 27mMultiple Airlines

Tue 4/142:00 pmLGW - SDF

1 stop26h 38mMultiple Airlines

Deal found 12/22

$807

Wed 4/812:33 pmSDF - LGW

1 stop16h 27mMultiple Airlines

Sun 4/122:00 pmLGW - SDF

1 stop26h 37mMultiple Airlines

Deal found 12/22

$815

Fri 4/312:33 pmSDF - LGW

1 stop16h 27mMultiple Airlines

Mon 4/132:00 pmLGW - SDF

2 stops29h 33mMultiple Airlines

Deal found 12/22

$842

Thu 4/1611:33 amSDF - LGW

1 stop17h 27mMultiple Airlines

Sun 4/192:00 pmLGW - SDF

1 stop26h 38mMultiple Airlines

Deal found 12/21

$855

Fri 1/21:52 pmSDF - LCY

2 stops13h 18mDelta

Fri 1/98:40 amLCY - SDF

2 stops17h 35mDelta

Deal found 12/21

$4,203

Fri 4/312:33 pmSDF - LGW

1 stop16h 27mMultiple Airlines

Thu 4/92:00 pmLGW - SDF

1 stop26h 37mMultiple Airlines

Deal found 12/22

$855

Wed 2/1810:35 amSDF - LCY

2 stops22h 30mBritish Airways

Sun 3/17:15 pmLCY - SDF

2 stops31h 08mBritish Airways

Deal found 12/21

$4,454

Sun 4/52:17 pmSDF - LCY

2 stops14h 13mDelta

Sat 4/1110:00 amLCY - SDF

2 stops18h 57mDelta

Deal found 12/22

$9,269

Sun 2/2212:00 pmSDF - LCY

2 stops25h 35mMultiple Airlines

Thu 3/56:50 amLCY - SDF

2 stops19h 24mMultiple Airlines

Deal found 12/22

$5,020

Last-minute flights from Louisville to London
Discover last-minute flight deals from Louisville to London. Data last updated December 23, 2025 and is based on user searches.

Wed 12/313:44 pmSDF - LHR

1 stop10h 36mMultiple Airlines

Thu 1/82:45 pmLHR - SDF

1 stop12h 27mMultiple Airlines

Deal found 12/21

$835

Wed 12/313:44 pmSDF - LCY

2 stops24h 01mBritish Airways

Thu 1/82:45 pmLCY - SDF

2 stops32h 45mBritish Airways

Deal found 12/21

$1,097

Wed 12/315:05 amSDF - LGW

3 stops23h 40mMultiple Airlines

Thu 1/811:40 amLGW - SDF

3 stops30h 20mMultiple Airlines

Deal found 12/21

$2,228

Wed 12/312:00 pmSDF - LGW

2 stops24h 00mIberia

Thu 1/811:45 amLGW - SDF

2 stops40h 34mIberia

Deal found 12/21

$2,532

Fri 1/26:00 amSDF - LHR

1 stop20h 30mUnited Airlines

Fri 1/93:10 pmLHR - SDF

1 stop13h 13mUnited Airlines

Deal found 12/22

$771

Thu 1/86:28 amSDF - LHR

2 stops33h 07mMultiple Airlines

Mon 1/127:15 pmLHR - SDF

2 stops32h 15mMultiple Airlines

Deal found 12/21

$744

Thu 1/82:05 pmSDF - LHR

1 stop12h 50mLufthansa

Mon 1/127:15 pmLHR - SDF

2 stops32h 15mLufthansa

Deal found 12/21

$756

Thu 1/152:05 pmSDF - LHR

1 stop12h 50mLufthansa

Mon 1/197:30 pmLHR - SDF

2 stops27h 07mLufthansa

Deal found 12/21

$730

Sun 1/188:30 amSDF - LHR

2 stops31h 05mMultiple Airlines

Sat 1/316:35 amLHR - SDF

2 stops20h 55mMultiple Airlines

Deal found 12/21

$619

Sun 1/185:45 pmSDF - LHR

1 stop33h 05mVirgin Atlantic

Sat 1/3111:15 amLHR - SDF

2 stops15h 09mVirgin Atlantic

Deal found 12/21

$620

Sun 1/182:13 pmSDF - LHR

1 stop16h 27mFinnair

Sat 1/318:20 amLHR - SDF

1 stop17h 27mFinnair

Deal found 12/21

$643

Fri 1/301:32 pmSDF - LHR

1 stop14h 03mIberia

Fri 2/66:15 amLHR - SDF

2 stops22h 04mIberia

Deal found 12/21

$621

One-way flights from Louisville to London
Search for one-way flight options from Louisville to London. Find affordable one-way fares based on user searches. Data last updated December 23, 2025.

Wed 3/253:33 pmSDF - LHR

1 stop16h 27mBritish Airways

Deal found 12/22

$220

Wed 3/253:33 pmSDF - LHR

1 stop11h 47mAmerican Airlines

Deal found 12/21

$221

Thu 1/293:36 pmSDF - LGW

2 stops37h 24mMultiple Airlines

Deal found 12/22

$239

Wed 1/211:55 pmSDF - LHR

3 stops48h 35mMultiple Airlines

Deal found 12/22

$323

Wed 1/211:55 pmSDF - LGW

3 stops40h 00mMultiple Airlines

Deal found 12/22

$323

Wed 3/2512:06 pmSDF - LHR

2 stops16h 59mAer Lingus

Deal found 12/21

$336

Thu 1/293:36 pmSDF - LHR

3 stops44h 54mMultiple Airlines

Deal found 12/22

$342

Wed 1/211:55 pmSDF - LCY

3 stops40h 00mMultiple Airlines

Deal found 12/22

$357

Thu 1/292:10 pmSDF - LHR

1 stop11h 30mLufthansa

Deal found 12/22

$380

Wed 1/212:05 pmSDF - LHR

1 stop10h 50mLufthansa

Deal found 12/22

$382

Wed 1/218:30 amSDF - LHR

2 stops17h 40mAir Canada

Deal found 12/22

$398

Wed 3/251:58 pmSDF - LHR

3 stops17h 22mAir Canada

Deal found 12/21

$406

Find flight deals from Louisville to London

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$619 (Gotogate)
One-way from	$220 (oojo)
Popular in	June
Cheapest in	October
Average price	$1,287

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. 16% potential increase in price ($193 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($30 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Fri 2/20

9:00 am-7:55 am

1 stop17h 55m

London Heathrow

Tue 2/24

6:50 am-8:09 pm

2 stops18h 19m

$628

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Thu 2/5

8:29 am-5:55 am

1 stop16h 26m

London Heathrow

Thu 2/12

6:50 am-5:19 pm

2 stops15h 29m

$628

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Wed 2/4

2:10 pm-6:40 am

1 stop11h 30m

London Heathrow

Wed 2/11

6:50 am-7:31 pm

2 stops17h 41m

$628

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Fri 2/20

5:35 am-7:10 am

2 stops20h 35m

London Heathrow

Tue 2/24

9:00 am-7:55 pm

2 stops39h 55m

$637

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Sun 1/18

2:13 pm-11:40 am

1 stop16h 27m

London Heathrow

Sat 1/31

8:20 am-8:47 pm

1 stop17h 27m

$643

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Wed 4/8

5:27 pm-12:15 pm

1 stop13h 48m

London Heathrow

Mon 4/13

7:25 pm-7:02 pm

2 stops28h 37m

$651

LouisvilleLondon

SDF - LCY

SDFLCY

Louisville Intl

Thu 2/5

1:50 pm-9:20 am

2 stops14h 30m

London City

Thu 2/12

9:40 am-11:59 pm

2 stops19h 19m

$684

LouisvilleLondon

SDF - LCY

SDFLCY

Louisville Intl

Wed 2/4

2:10 pm-9:05 am

2 stops13h 55m

London City

Wed 2/11

9:50 am-11:23 pm

2 stops18h 33m

$684

LouisvilleLondon

SDF - LGW

SDFLGW

Louisville Intl

Mon 4/6

12:33 pm-10:00 am

1 stop16h 27m

London Gatwick

Tue 4/14

2:00 pm-11:38 am

1 stop26h 38m

$706

LouisvilleLondon

SDF - LGW

SDFLGW

Louisville Intl

Mon 4/6

12:33 pm-10:00 am

1 stop16h 27m

London Gatwick

Sun 4/12

2:00 pm-11:37 am

1 stop26h 37m

$713

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/22

Showing 1-10 of 46 results

...

Compare providers for flights from Louisville to London

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Louisville to London in December.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy2 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*1 star
eDreams	Price Accuracy3 stars	Trust Score*3 stars
AranGrant	Price Accuracy2 stars	Trust Score*3 stars
Ovago	Price Accuracy2 stars	Trust Score*2 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Louisville-London flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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?

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.

What is the cheapest time of day to fly from SDF to LON?

It’s typically best to fly out from Louisville to London in the evening. Doing so could potentially save you 84% on the flight price compared to flying at noon, which is usually more expensive.

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?

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?

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?

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?

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

Reviews of airlines servicing London

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

8,014 reviews

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

8,014 reviews

Delta

7.9

Good

8,014 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

Virgin Atlantic

7.5

Good

677 reviews

Delta

7.9

Good

8,014 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

United Airlines

7.4

Good

9,105 reviews

Delta

7.9

Good

8,014 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

American Airlines

7.2

Good

11,054 reviews

Delta

7.9

Good

8,014 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

British Airways

6.7

Okay

7,605 reviews

Delta

7.9

Good

8,014 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

Related info for your journey

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 6 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 14h 03m. 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 $574, KLM will fly you from Louisville to London and back. In addition to KLM, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Virgin Atlantic and British Airways - these airlines can fly you to your destination from $580 and $598, respectively. These flights start at 41% 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 City or Louisville Intl - London Gatwick 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

Ilford

Hounslow

Southend-on-Sea

Harrow

Eastleigh

Dartford

Dover

Winchester

Croydon

Hayes

Orpington

Watford

Borehamwood

Aylesbury

Chipping Norton

Horley

Kingston upon Thames

Folkestone

Eastbourne

Sutton

Browse thousands of different options on Cheapflights for your next trip

Top 6 airlines flying from Louisville to London

Airline	Cheapest	Average	Flexibility	On-time
KLM	Cheapest$574	Average$630	FlexibilityNo cancel fee	On-time75%
Virgin Atlantic	Cheapest$580	Average$1,187	FlexibilityNo cancel fee	On-time72%
British Airways	Cheapest$598	Average$796	FlexibilityNo cancel fee	On-time70%
American Airlines	Cheapest$665	Average$895	FlexibilityNo cancel fee	On-time71%
Delta	Cheapest$675	Average$1,040	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$678	Average$874	FlexibilityNo cancel fee	On-time69%

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$220+ 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 3/25. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheapflights Tip: The best prices from Louisville Intl to London are usually found in October or August, booked 10 days in advance, depart on a Wednesday or Tuesday and return on a Thursday

Cheap flight deals from Louisville to London

Cheapest flights from Louisville to LondonExplore 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 December 23, 2025.

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 December 23, 2025.

Find flight deals from Louisville to London

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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 December.

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.

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 December 19, 2025.

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

What is the cheapest time of day to fly from SDF to LON?

Find hourly flight availability from Louisville to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 23, 2025.

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.

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.

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.

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.

Reviews of airlines servicing London

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.

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?

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What are the most popular routes from Louisville to London?

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

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

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

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Alternative routes for Louisville to London

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Top 6 airlines flying from Louisville to London

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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 December 23, 2025.