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

Currently priced at $697, 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 United Airlines and Delta - these airlines can fly you to your destination from $712 and $713, respectively. These flights start at 28% lower than the current average price 3 months from now.

What are the cheapest airlines to fly from Louisville to London one-way?

$461 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 KLM and United Airlines, with prices starting from $529 and $541, respectively.

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, British Airways or Delta.

What is the cheapest day to fly round-trip from Louisville to London?

Flying to your destination on a Saturday can be more expensive, but this shouldn’t discourage you from finding affordable options to get to London. Check prices with Cheapflights to find a great deal for your trip.

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

Find a great deal and save up to 92% by booking at least 26 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Louisville to London within the next two weeks, with the cheapest ticket starting at $632.

What is the cheapest month to fly from Louisville to London?

The best pricing can be found in the month of October. Prices to London from Louisville average $974. You can even find prices in October for less than $974, as users have found deals to London from as low as $599. The month of July appears to be one of the more expensive times to travel to London from Louisville. Flying in the targeted month can save you up to 31%.

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 FlightHub the most. FlightHub 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 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.

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.

$338+ Flights from Louisville to London

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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 September, booked 89 days in advance, depart on a Wednesday or Tuesday and return on a Thursday

Cheap flight deals from Louisville to London

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$697 (oojo)
One-way from	$338 (Mytrip)
Popular in	July
Cheapest in	October
Average price	$804

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. 12% potential increase in price ($139 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($28 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in March 2025

Search Deals

Find 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 March 28, 2025.

Wed 4/2311:05 amSDF - LHR

1 stop22h 20mBritish Airways

Wed 5/711:30 amLHR - SDF

2 stops16h 31mBritish Airways

Deal found 3/26

$697

Wed 4/211:04 amSDF - LHR

1 stop16h 16mUnited Airlines

Wed 4/97:25 amLHR - SDF

2 stops19h 25mUnited Airlines

Deal found 3/25

$712

Sun 4/206:00 pmSDF - LHR

1 stop9h 55mDelta

Wed 4/306:30 amLHR - SDF

2 stops15h 49mDelta

Deal found 3/26

$713

Wed 4/235:56 pmSDF - LHR

2 stops23h 14mLufthansa

Wed 5/76:30 amLHR - SDF

2 stops21h 00mLufthansa

Deal found 3/26

$737

Wed 4/211:04 amSDF - LHR

3 stops17h 31mMultiple Airlines

Wed 4/912:40 pmLHR - SDF

2 stops14h 50mMultiple Airlines

Deal found 3/26

$738

Fri 4/252:37 pmSDF - LHR

1 stop11h 38mVirgin Atlantic

Fri 5/21:05 pmLHR - SDF

1 stop13h 43mVirgin Atlantic

Deal found 3/26

$745

Wed 4/232:37 pmSDF - LHR

1 stop11h 08mKLM

Mon 4/283:15 pmLHR - SDF

1 stop12h 34mKLM

Deal found 3/27

$777

Thu 5/1511:23 amSDF - LGW

1 stop17h 37mMultiple Airlines

Tue 5/206:40 amLGW - SDF

2 stops37h 16mMultiple Airlines

Deal found 3/27

$820

Wed 7/3012:40 pmSDF - LHR

2 stops22h 20mScandinavian Airlines

Thu 8/146:40 amLHR - SDF

2 stops20h 52mScandinavian Airlines

Deal found 3/26

$841

Thu 5/1511:00 amSDF - LCY

2 stops16h 20mMultiple Airlines

Tue 5/207:20 pmLCY - SDF

2 stops27h 06mMultiple Airlines

Deal found 3/27

$890

Mon 9/228:43 pmSDF - LGW

2 stops18h 17mBritish Airways

Fri 10/38:40 pmLGW - SDF

2 stops29h 30mBritish Airways

Deal found 3/26

$1,067

Wed 5/2112:41 pmSDF - LCY

2 stops13h 34mDelta

Mon 5/2610:00 amLCY - SDF

2 stops16h 26mDelta

Deal found 3/27

$1,105

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 March 28, 2025.

Wed 4/2311:05 amSDF - LHR

1 stop22h 20mBritish Airways

Wed 5/711:30 amLHR - SDF

2 stops16h 31mBritish Airways

Deal found 3/26

$697

Wed 4/2311:04 amSDF - LHR

2 stops16h 31mUnited Airlines

Wed 4/307:25 amLHR - SDF

2 stops18h 04mUnited Airlines

Deal found 3/26

$712

Sun 4/206:00 pmSDF - LHR

1 stop9h 55mDelta

Wed 4/306:30 amLHR - SDF

2 stops15h 49mDelta

Deal found 3/26

$713

Wed 4/235:56 pmSDF - LHR

2 stops23h 14mLufthansa

Wed 5/76:30 amLHR - SDF

2 stops21h 00mLufthansa

Deal found 3/26

$737

Fri 4/252:37 pmSDF - LHR

1 stop11h 38mVirgin Atlantic

Fri 5/21:05 pmLHR - SDF

1 stop13h 43mVirgin Atlantic

Deal found 3/26

$745

Wed 4/232:37 pmSDF - LHR

1 stop11h 08mKLM

Mon 4/283:15 pmLHR - SDF

1 stop12h 34mKLM

Deal found 3/27

$777

Fri 5/27:00 amSDF - LHR

2 stops18h 30mMultiple Airlines

Sun 5/119:30 amLHR - SDF

2 stops15h 17mMultiple Airlines

Deal found 3/25

$792

Wed 7/3012:40 pmSDF - LHR

2 stops22h 20mScandinavian Airlines

Thu 8/146:40 amLHR - SDF

2 stops20h 52mScandinavian Airlines

Deal found 3/26

$841

Fri 5/164:36 pmSDF - LHR

1 stop10h 14mAmerican Airlines

Mon 5/1910:05 amLHR - SDF

1 stop12h 35mAmerican Airlines

Deal found 3/27

$1,111

Thu 7/102:10 pmSDF - LHR

2 stops16h 40mAir Canada

Thu 7/179:30 amLHR - SDF

2 stops40h 29mAir Canada

Deal found 3/27

$1,117

Thu 5/1511:51 amSDF - LGW

2 stops17h 59mIberia

Tue 5/208:40 pmLGW - SDF

2 stops31h 21mIberia

Deal found 3/27

$1,215

Fri 6/66:32 pmSDF - LHR

2 stops15h 23mAer Lingus

Mon 6/99:10 pmLHR - SDF

2 stops25h 52mAer Lingus

Deal found 3/26

$1,409

Last-minute flights from Louisville to London
Discover last-minute flight deals from Louisville to London. Data last updated March 28, 2025 and is based on user searches.

Wed 4/211:04 amSDF - LHR

1 stop16h 16mUnited Airlines

Wed 4/97:25 amLHR - SDF

2 stops19h 25mUnited Airlines

Deal found 3/25

$712

Wed 4/27:19 pmSDF - LHR

1 stop10h 11mBritish Airways

Wed 4/92:25 pmLHR - SDF

1 stop13h 35mBritish Airways

Deal found 3/25

$716

Wed 4/211:04 amSDF - LHR

3 stops17h 31mMultiple Airlines

Wed 4/912:40 pmLHR - SDF

2 stops14h 50mMultiple Airlines

Deal found 3/26

$738

Wed 4/27:19 pmSDF - LCY

2 stops32h 21mMultiple Airlines

Wed 4/96:45 amLCY - SDF

2 stops17h 44mMultiple Airlines

Deal found 3/27

$1,480

Thu 4/310:06 amSDF - LHR

2 stops18h 54mAir Canada

Wed 4/163:50 pmLHR - SDF

2 stops27h 13mAir Canada

Deal found 3/25

$760

Thu 4/32:48 pmSDF - LHR

1 stop10h 57mDelta

Wed 4/1611:45 amLHR - SDF

2 stops17h 14mDelta

Deal found 3/25

$763

Thu 4/31:19 pmSDF - LCY

2 stops15h 11mDelta

Wed 4/169:20 amLCY - SDF

2 stops17h 14mDelta

Deal found 3/27

$1,209

Sat 4/58:26 amSDF - LGW

3 stops22h 19mMultiple Airlines

Fri 4/113:40 pmLGW - SDF

3 stops25h 07mMultiple Airlines

Deal found 3/26

$1,105

Sat 4/55:45 amSDF - LHR

2 stops22h 20mAer Lingus

Fri 4/117:40 amLHR - SDF

2 stops17h 47mAer Lingus

Deal found 3/26

$1,690

Sun 4/206:00 pmSDF - LHR

1 stop9h 55mDelta

Wed 4/306:30 amLHR - SDF

2 stops15h 49mDelta

Deal found 3/26

$713

Wed 4/2311:05 amSDF - LHR

1 stop22h 20mBritish Airways

Wed 5/711:30 amLHR - SDF

2 stops16h 31mBritish Airways

Deal found 3/26

$697

Wed 4/235:56 pmSDF - LHR

2 stops23h 14mLufthansa

Wed 5/76:30 amLHR - SDF

2 stops21h 00mLufthansa

Deal found 3/26

$737

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 March 28, 2025.

Mon 5/199:55 amSDF - LGW

1 stop15h 25mMultiple Airlines

Deal found 3/26

$338

Fri 5/306:48 pmSDF - LHR

3 stops58h 42mMultiple Airlines

Deal found 3/26

$402

Mon 4/146:06 pmSDF - LHR

2 stops31h 24mAir Canada

Deal found 3/27

$461

Sun 7/202:59 pmSDF - LHR

1 stop10h 46mKLM

Deal found 3/26

$529

Sat 8/2310:55 amSDF - LHR

2 stops38h 35mUnited Airlines

Deal found 3/25

$541

Sun 5/187:50 amSDF - LGW

3 stops20h 35mWestJet

Deal found 3/26

$554

Sun 7/202:37 pmSDF - LCY

2 stops22h 48mBritish Airways

Deal found 3/26

$594

Mon 4/145:45 amSDF - LCY

3 stops22h 05mMultiple Airlines

Deal found 3/27

$614

Fri 5/307:50 amSDF - LHR

2 stops23h 15mWestJet

Deal found 3/26

$641

Mon 6/99:55 amSDF - SEN

3 stops31h 45mMultiple Airlines

Deal found 3/27

$650

Wed 6/48:56 amSDF - LHR

2 stops16h 24mBritish Airways

Deal found 3/25

$900

Cheapflights Fare Finder

Use the filters below to find and compare flights from Louisville to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Wed 4/23

11:05 am-2:25 pm

1 stop22h 20m

London Heathrow

Wed 5/7

11:30 am-11:01 pm

2 stops16h 31m

$697

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Wed 4/23

9:25 am-7:40 am

1 stop17h 15m

London Heathrow

Wed 4/30

7:25 am-8:29 pm

2 stops18h 04m

$712

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Sun 4/20

6:00 pm-8:55 am

1 stop9h 55m

London Heathrow

Wed 4/30

6:30 am-5:19 pm

2 stops15h 49m

$713

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Wed 4/23

5:56 pm-10:10 pm

2 stops23h 14m

London Heathrow

Wed 5/7

6:30 am-10:30 pm

2 stops21h 00m

$737

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Fri 4/25

2:37 pm-7:15 am

1 stop11h 38m

London Heathrow

Fri 5/2

1:05 pm-9:48 pm

1 stop13h 43m

$745

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Wed 4/23

2:37 pm-6:45 am

1 stop11h 08m

London Heathrow

Mon 4/28

3:15 pm-10:49 pm

1 stop12h 34m

$777

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Fri 5/2

7:00 am-6:30 am

2 stops18h 30m

London Heathrow

Sun 5/11

9:30 am-7:47 pm

2 stops15h 17m

$792

LouisvilleLondon

SDF - LGW

SDFLGW

Louisville Intl

Thu 5/15

11:23 am-10:00 am

1 stop17h 37m

London Gatwick

Tue 5/20

6:40 am-2:56 pm

2 stops37h 16m

$820

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Wed 7/30

12:40 pm-4:00 pm

2 stops22h 20m

London Heathrow

Thu 8/14

6:40 am-10:32 pm

2 stops20h 52m

$841

LouisvilleLondon

SDF - LCY

SDFLCY

Louisville Intl

Thu 5/15

11:00 am-8:20 am

2 stops16h 20m

London City

Tue 5/20

7:20 pm-5:26 pm

2 stops27h 06m

$890

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/26

Showing 1-10 of 33 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 March.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars
AranGrant	Price Accuracy3 stars	Trust Score*1 star

*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 FlightHub the most. FlightHub 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 89 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 $661). Flying from Louisville to London in June is currently the most expensive (average of $1,115). 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 afternoon. Doing so could potentially save you 13% on the flight price compared to flying at noon, which is usually more expensive.

What is the cheapest day to fly from Louisville to London?

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

Rainfall in London by month

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.

Temperature in London by month

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).

Reviews of airlines servicing London

Read reviews from past customers who have flown Delta, KLM and United Airlines from Louisville to London. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,896 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta

8.0

Very good

7,896 reviews

Delta

8.0

Very good

7,896 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM

7.8

Good

1,321 reviews

Delta

8.0

Very good

7,896 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines

7.4

Good

8,603 reviews

Delta

8.0

Very good

7,896 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Virgin Atlantic

7.4

Good

634 reviews

Delta

8.0

Very good

7,896 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Scandinavian Airlines

7.3

Good

1,325 reviews

Delta

8.0

Very good

7,896 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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 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.
What are the cheapest airlines flying from Louisville to London round-trip?
Currently priced at $697, 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 United Airlines and Delta - these airlines can fly you to your destination from $712 and $713, respectively. These flights start at 28% lower than the current average price 3 months from now.
What are the cheapest airlines to fly from Louisville to London one-way?
$461 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 KLM and United Airlines, with prices starting from $529 and $541, respectively.
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 $661). Flying from Louisville to London in June is currently the most expensive (average of $1,115). 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

Hounslow

Hayes

Thornton Heath

Luton

Wembley

Harrow

Horley

Canterbury

Gatwick

Dover

Orpington

Watford

Milton Keynes

Croydon

Borehamwood

Bromley

Folkestone

Ilford

Aylesbury

Sutton

Browse thousands of different options on Cheapflights for your next trip

Top 5 airlines flying from Louisville to London

Airline	Cheapest	Average	Flexibility	On-time
British Airways	Cheapest$675	Average$1,029	FlexibilityNo cancel fee	On-time70%
American Airlines	Cheapest$688	Average$903	FlexibilityNo cancel fee	On-time71%
Delta	Cheapest$728	Average$1,040	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$734	Average$996	FlexibilityNo cancel fee	On-time69%
Virgin Atlantic	Cheapest$776	Average$1,238	FlexibilityNo cancel fee	On-time72%

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$338+ 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 5/19. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Louisville to London with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Louisville Intl to London are usually found in October or September, booked 89 days in advance, depart on a Wednesday or Tuesday and return on a Thursday

Cheap flight deals from Louisville to London

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find 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 March 28, 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 March 28, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Louisville to London that are best for you.

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 March.

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 March 21, 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 March 28, 2025.

What is the cheapest day to fly from Louisville to London?

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

Rainfall in London by month

Plan your trip to London by taking into account the average rainfall totals by month.

Temperature in London by month

Plan your trip to London by taking into account the average temperature totals by month.

Reviews of airlines servicing London

Read reviews from past customers who have flown Delta, KLM and United Airlines from Louisville to London. In addition to providing an overall rating, users have also rated airlines in terms of 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?

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

What are the cheapest airlines to fly from Louisville to London one-way?

What are the most popular routes from Louisville to London?

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

How can I find direct flights from Louisville to London?

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 5 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 March 28, 2025.