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

According to our current data, United Airlines (£458), British Airways (£466), and Delta (£471) offers the cheapest pricing from Louisville to London. United Airlines is currently priced 36% below the average price you’ll pay for this route.

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

The cheapest airline one-way is United Airlines, with whom users have recently found tickets for as low as £300. However, be on the lookout for offers from Iberia and British Airways, as they are both options that can get you from Louisville to London for a low price.

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

Travellers seeking maximum savings on their Louisville to London flight should consider departing on Wednesday at midday when fares are most often at their lowest. Wednesday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in London ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London when rainfall is around 40.0 mm.

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 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

What are the most popular routes from Louisville to London?

The most popular route from Louisville to London is Louisville Intl - London Heathrow. You may also consider Louisville Intl - London Gatwick or Louisville Intl - London City.

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

Travelers have found that booking a Monday departure is the best way to save up to 63% on the cost of booking your flights compared to booking on days of the week where this route is of high demand.

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

To save on the cost of your flight from Louisville to London, book at least 14 days before your planned departure. Booking around this time can save you about 97% on the cost of this flight compared to booking a flight leaving this week. We have found prices from £460 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as £1,052.

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

Our data shows that October tends to be the cheapest month to fly to London from Louisville. Users have commonly found prices around £718 for the month, but tickets can be as low as £436. Due to multiple factors, prepare for potentially higher prices in June.

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

For a flight from Louisville to London, you will be flying from Louisville Intl. Louisville Intl (SDF) is just 5.3 mi from the center of the city. Louisville Intl is the only Louisville airport and it handles 0 outbound flights to London per day. 2 airlines have flights to London from Louisville Intl on a regular basis.

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 holiday 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.

£142+ Flights from Louisville to London

Cheapflights Tip: The best prices from Louisville Intl to London are usually found in October or August, booked 90 days in advance, depart on a Tuesday or Monday and return on a Tuesday

Cheap flight deals from Louisville to London

Round-trip from	£444
One-way from	£142
Popular in	June
Cheapest in	October
Average price	£1,005

Lufthansa
3/8-19/8
4 total stops
39h 02m total
Louisville to London

Search Deals

19/7
1 total stop
31h 27m total
Louisville to London

Search Deals

Highest demand for flights based on searches. 19% potential increase in price (£123 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (£20 potential savings vs. average return price).

Search Deals

Average for round-trip flights in June 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 27 June 2025.

Sun 3/806:30SDF - LHR

2 stops22h 30mMultiple Airlines

Tue 19/809:30LHR - SDF

2 stops16h 32mMultiple Airlines

Deal found 25/6£444

Mon 29/909:06SDF - LGW

1 stop19h 54mMultiple Airlines

Sat 4/1014:00LGW - SDF

1 stop23h 11mMultiple Airlines

Deal found 26/6£444

Tue 14/1008:45SDF - LHR

2 stops16h 45mUnited Airlines

Tue 21/1014:05LHR - SDF

2 stops26h 28mUnited Airlines

Deal found 25/6£458

Tue 2/914:45SDF - LHR

1 stop13h 20mBritish Airways

Thu 11/915:00LHR - SDF

1 stop13h 59mBritish Airways

Deal found 25/6£466

Tue 2/912:45SDF - LHR

2 stops13h 30mDelta

Tue 16/906:15LHR - SDF

2 stops16h 24mDelta

Deal found 25/6£471

Tue 11/1109:00SDF - LHR

2 stops17h 10mAir Canada

Sun 16/1113:25LHR - SDF

2 stops34h 27mAir Canada

Deal found 25/6£494

Tue 22/715:05SDF - LHR

1 stop12h 50mKLM

Tue 29/715:15LHR - SDF

1 stop14h 17mKLM

Deal found 25/6£496

Mon 29/918:12SDF - LHR

1 stop13h 03mAmerican Airlines

Mon 6/1013:30LHR - SDF

1 stop12h 22mAmerican Airlines

Deal found 26/6£512

Thu 2/1019:30SDF - LHR

1 stop13h 00mVirgin Atlantic

Thu 9/1010:55LHR - SDF

2 stops16h 35mVirgin Atlantic

Deal found 24/6£514

Mon 11/814:50SDF - LHR

2 stops13h 50mLufthansa

Mon 18/819:30LHR - SDF

2 stops30h 32mLufthansa

Deal found 26/6£532

Tue 14/1019:20SDF - LCY

2 stops16h 05mLufthansa

Tue 21/1008:45LCY - SDF

2 stops16h 42mLufthansa

Deal found 26/6£543

Tue 14/1012:40SDF - LHR

2 stops28h 00mScandinavian Airlines

Tue 21/1006:40LHR - SDF

3 stops22h 16mScandinavian Airlines

Deal found 25/6£564

Best flights from Louisville to London
Discover carefully curated flight deals from Louisville to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 27 June 2025.

Sun 3/806:30SDF - LHR

2 stops22h 30mMultiple Airlines

Tue 19/809:30LHR - SDF

2 stops16h 32mMultiple Airlines

Deal found 25/6£444

Tue 14/1008:45SDF - LHR

2 stops16h 45mUnited Airlines

Tue 21/1014:05LHR - SDF

2 stops26h 28mUnited Airlines

Deal found 25/6£458

Tue 2/914:45SDF - LHR

1 stop13h 20mBritish Airways

Thu 11/915:00LHR - SDF

1 stop13h 59mBritish Airways

Deal found 25/6£466

Tue 2/912:45SDF - LHR

2 stops13h 30mDelta

Tue 16/906:15LHR - SDF

2 stops16h 24mDelta

Deal found 25/6£471

Tue 11/1109:00SDF - LHR

2 stops17h 10mAir Canada

Sun 16/1113:25LHR - SDF

2 stops34h 27mAir Canada

Deal found 25/6£494

Tue 22/715:05SDF - LHR

1 stop12h 50mKLM

Tue 29/715:15LHR - SDF

1 stop14h 17mKLM

Deal found 25/6£496

Mon 29/918:12SDF - LHR

1 stop13h 03mAmerican Airlines

Mon 6/1013:30LHR - SDF

1 stop12h 22mAmerican Airlines

Deal found 26/6£512

Thu 2/1019:30SDF - LHR

1 stop13h 00mVirgin Atlantic

Thu 9/1010:55LHR - SDF

2 stops16h 35mVirgin Atlantic

Deal found 24/6£514

Mon 11/814:50SDF - LHR

2 stops13h 50mLufthansa

Mon 18/819:30LHR - SDF

2 stops30h 32mLufthansa

Deal found 26/6£532

Tue 14/1012:40SDF - LHR

2 stops28h 00mScandinavian Airlines

Tue 21/1006:40LHR - SDF

3 stops22h 16mScandinavian Airlines

Deal found 25/6£564

Wed 13/814:45SDF - LHR

2 stops14h 50mIberia

Sun 17/809:15LHR - SDF

1 stop18h 47mIberia

Deal found 26/6£587

Wed 27/806:44SDF - LCY

2 stops20h 46mAer Lingus

Mon 1/920:30LCY - SDF

2 stops31h 32mAer Lingus

Deal found 25/6£788

Last-minute flights from Louisville to London
Discover last-minute flight deals from Louisville to London. Data last updated 27 June 2025 and is based on user searches.

Fri 27/614:50SDF - LHR

2 stops16h 50mLufthansa

Tue 1/706:30LHR - SDF

2 stops15h 50mLufthansa

Deal found 25/6£993

Wed 2/713:44SDF - LHR

1 stop12h 01mKLM

Mon 7/715:15LHR - SDF

1 stop14h 17mKLM

Deal found 25/6£1,002

Wed 2/711:25SDF - LHR

2 stops14h 05mUnited Airlines

Mon 7/706:50LHR - SDF

2 stops20h 24mUnited Airlines

Deal found 25/6£1,030

Fri 4/705:03SDF - LCY

3 stops25h 37mMultiple Airlines

Fri 11/713:05LCY - SDF

3 stops35h 23mMultiple Airlines

Deal found 26/6£876

Fri 4/714:34SDF - LHR

1 stop15h 31mBritish Airways

Fri 11/711:05LHR - SDF

1 stop12h 15mBritish Airways

Deal found 26/6£911

Fri 4/713:57SDF - LGW

2 stops15h 03mMultiple Airlines

Fri 11/709:50LGW - SDF

3 stops38h 38mMultiple Airlines

Deal found 26/6£984

Fri 4/706:30SDF - LHR

2 stops19h 00mAir Canada

Fri 11/712:40LHR - SDF

2 stops37h 19mAir Canada

Deal found 26/6£1,089

Fri 4/715:24SDF - LHR

2 stops17h 11mScandinavian Airlines

Fri 11/706:40LHR - SDF

3 stops21h 06mScandinavian Airlines

Deal found 26/6£1,192

Fri 4/705:03SDF - LHR

3 stops20h 27mMultiple Airlines

Fri 11/714:10LHR - SDF

3 stops33h 08mMultiple Airlines

Deal found 26/6£1,461

Sat 5/714:50SDF - LHR

2 stops13h 50mLufthansa

Fri 18/711:05LHR - SDF

1 stop16h 09mLufthansa

Deal found 25/6£3,775

Sat 5/713:44SDF - LGW

2 stops15h 16mDelta

Fri 18/712:00LGW - SDF

2 stops17h 32mDelta

Deal found 25/6£4,220

Thu 17/718:50SDF - LHR

1 stop10h 30mBritish Airways

Mon 28/714:25LHR - SDF

1 stop13h 45mBritish Airways

Deal found 26/6£598

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 27 June 2025.

Sat 19/721:43SDF - LGW

1 stop31h 27mMultiple Airlines

Deal found 25/6£142

Sat 19/721:43SDF - LHR

3 stops43h 17mMultiple Airlines

Deal found 25/6£224

Mon 14/718:26SDF - SEN

3 stops47h 39mMultiple Airlines

Deal found 25/6£269

Sat 23/815:35SDF - LHR

1 stop35h 05mUnited Airlines

Deal found 25/6£300

Mon 14/718:26SDF - LCY

2 stops58h 39mMultiple Airlines

Deal found 25/6£308

Sat 19/718:50SDF - LHR

1 stop31h 30mIberia

Deal found 25/6£314

Sat 23/814:18SDF - LHR

1 stop35h 07mBritish Airways

Deal found 26/6£329

Sat 23/809:05SDF - LHR

3 stops16h 25mAir Canada

Deal found 25/6£363

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

Sun 3/8

06:30-10:00

2 stops22h 30m

London Heathrow

Tue 19/8

09:30-21:02

2 stops16h 32m

£444

LouisvilleLondon

SDF - LGW

SDFLGW

Louisville Intl

Mon 29/9

09:06-10:00

1 stop19h 54m

London Gatwick

Sat 4/10

14:00-08:11

1 stop23h 11m

£444

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Tue 14/10

08:45-06:30

2 stops16h 45m

London Heathrow

Tue 21/10

14:05-11:33

2 stops26h 28m

£458

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Tue 2/9

14:45-09:05

1 stop13h 20m

London Heathrow

Thu 11/9

15:00-23:59

1 stop13h 59m

£466

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Tue 2/9

12:45-07:15

2 stops13h 30m

London Heathrow

Tue 16/9

06:15-17:39

2 stops16h 24m

£471

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Tue 11/11

09:00-07:10

2 stops17h 10m

London Heathrow

Sun 16/11

13:25-18:52

2 stops34h 27m

£494

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Tue 22/7

15:05-08:55

1 stop12h 50m

London Heathrow

Tue 29/7

15:15-00:32

1 stop14h 17m

£496

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Mon 29/9

18:12-12:15

1 stop13h 03m

London Heathrow

Mon 6/10

13:30-20:52

1 stop12h 22m

£512

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Thu 2/10

12:40-06:45

2 stops13h 05m

London Heathrow

Thu 9/10

09:40-19:01

2 stops14h 21m

£514

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Mon 11/8

14:50-09:40

2 stops13h 50m

London Heathrow

Mon 18/8

19:30-21:02

2 stops30h 32m

£532

Flights are sorted by cheapest return flights first.

Deals found on 25/6

Showing 1-10 of 28 results

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 return 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?

Booking 89 days in advance of your planned departure date is, on average, the best time to get cheap flights from Louisville to London. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, January is the cheapest month in which you can book a flight from Louisville to London (average of £112). Flying from Louisville to London in August is currently the most expensive (average of £164). 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 at midday. Doing so could potentially save you 34% on the flight price compared to flying in the afternoon, which is usually more expensive.

How much does it cost for a return flight from Louisville to London?

Reviews of airlines servicing London

Check out reviews from past customers who have flown with Delta, KLM, andUnited Airlines from Louisville to London to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very Good

7,963 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very Good

7,963 reviews

Delta

8.0

Very Good

7,963 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

KLM

7.8

Good

1,365 reviews

Delta

8.0

Very Good

7,963 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

United Airlines

7.4

Good

8,838 reviews

Delta

8.0

Very Good

7,963 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Virgin Atlantic

7.4

Good

654 reviews

Delta

8.0

Very Good

7,963 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Scandinavian Airlines

7.3

Good

1,412 reviews

Delta

8.0

Very Good

7,963 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

What airport do you fly from for flights from Louisville to London?
For a flight from Louisville to London, you will be flying from Louisville Intl. Louisville Intl (SDF) is just 5.3 mi from the center of the city. Louisville Intl is the only Louisville airport and it handles 0 outbound flights to London per day. 2 airlines have flights to London from Louisville Intl on a regular basis.
What are the cheapest airlines flying from Louisville to London round-trip?
According to our current data, United Airlines (£458), British Airways (£466), and Delta (£471) offers the cheapest pricing from Louisville to London. United Airlines is currently priced 36% below the average price you’ll pay for this route.
What are the cheapest airlines to fly from Louisville to London one-way?
The cheapest airline one-way is United Airlines, with whom users have recently found tickets for as low as £300. However, be on the lookout for offers from Iberia and British Airways, as they are both options that can get you from Louisville to London for a low price.
What are the most popular routes from Louisville to London?
The most popular route from Louisville to London is Louisville Intl - London Heathrow. You may also consider Louisville Intl - London Gatwick or Louisville Intl - London City.
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 holiday 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, January is the cheapest month in which you can book a flight from Louisville to London (average of £112). Flying from Louisville to London in August is currently the most expensive (average of £164). 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

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Gatwick

Slough

Luton

Wembley

Crawley

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Ilford

Watford

Southend-on-Sea

Folkestone

Ipswich

Winchester

Hayes

Maidstone

Guildford

Chichester

Browse thousands of different options on Cheapflights for your next trip

Top 2 airlines flying from Louisville to London

Airline	Cheapest	Average	Flexibility	On-time
Virgin Atlantic	Cheapest£526	Average£746	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
American Airlines	Cheapest£543	Average£818	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights

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How does Cheapflights help users find flights from Louisville to London?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Louisville to London. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Louisville to London?

Millions of users choose and trust Cheapflights to book the best flight deals from Louisville to London for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Louisville to London with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Louisville to London flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Louisville to London become cheaper?

Yes! Start tracking prices for Louisville to London flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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Cheap flights from Louisville to London from £142

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 19/7. Fares are subject to change and may not be available on all flights or dates of travel.

Cheapflights Tip: The best prices from Louisville Intl to London are usually found in October or August, booked 90 days in advance, depart on a Tuesday or Monday and return on a Tuesday

Cheap flight deals from Louisville to London

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 27 June 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 27 June 2025.

Cheapflights Fare Finder

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

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 return flight from Louisville to London. Price data was last updated on 20 June 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 27 June 2025.

How much does it cost for a return flight from Louisville to London?

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 27 June 2025.

Check out reviews from past customers who have flown with Delta, KLM, andUnited Airlines from Louisville to London to help guide your decision. You can also see how each airline stacks up 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?

Travelling to a place near Louisville?

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.

Top 2 airlines flying from Louisville to London

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Louisville to London?

Why should you use Cheapflights to find cheap flight tickets from Louisville to London?

Can Cheapflights find flights from Louisville to London with no change fees?

Can Cheapflights notify me if prices for flights from Louisville to London become cheaper?

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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 27 June 2025.