€400 Cheap Flights Louisville to London (SDF-LHR)

View €400 flight on Thu, 6 Nov 2025Opens in a new window

Popular airlines from Louisville Intl. Airport (SDF) to Heathrow Airport (LHR)

  • notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
  • deals illustration

    Book smarter

    Save up to 15% on select hotels after you book a flight*
  • trophy illustration

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap flights from Louisville to London (SDF-LHR)

Prices were available within the past 7 days and start at €400 for one-way flights and €551 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Thu, 6 Nov - Thu, 13 Nov
SDF
Louisville
LHR
London
€551 Return, found 4 days ago
€551
Return
found 4 days ago
Select Delta flight, departing Thu, 6 Nov from Louisville to London, returning Thu, 13 Nov, priced at €551 found 4 days ago
Virgin Atlantic
Thu, 6 Nov - Thu, 13 Nov
SDF
Louisville
LHR
London
€551 Return, found 4 days ago
€551
Return
found 4 days ago
Select Virgin Atlantic flight, departing Thu, 6 Nov from Louisville to London, returning Thu, 13 Nov, priced at €551 found 4 days ago
Delta
Thu, 6 Nov - Thu, 13 Nov
SDF
Louisville
LHR
London
€568 Return, found 4 days ago
€568
Return
found 4 days ago
Select Delta flight, departing Thu, 6 Nov from Louisville to London, returning Thu, 13 Nov, priced at €568 found 4 days ago
Delta
Thu, 6 Nov - Thu, 13 Nov
SDF
Louisville
LHR
London
€573 Return, found 4 days ago
€573
Return
found 4 days ago
Select Delta flight, departing Thu, 6 Nov from Louisville to London, returning Thu, 13 Nov, priced at €573 found 4 days ago
KLM
Thu, 6 Nov - Thu, 13 Nov
SDF
Louisville
LHR
London
€590 Return, found 4 days ago
€590
Return
found 4 days ago
Select KLM flight, departing Thu, 6 Nov from Louisville to London, returning Thu, 13 Nov, priced at €590 found 4 days ago
United
Thu, 6 Nov - Thu, 13 Nov
SDF
Louisville
LHR
London
€594 Return, found 4 days ago
€594
Return
found 4 days ago
Select United flight, departing Thu, 6 Nov from Louisville to London, returning Thu, 13 Nov, priced at €594 found 4 days ago
Iberia
Thu, 6 Nov - Thu, 13 Nov
SDF
Louisville
LHR
London
€594 Return, found 4 days ago
€594
Return
found 4 days ago
Select Iberia flight, departing Thu, 6 Nov from Louisville to London, returning Thu, 13 Nov, priced at €594 found 4 days ago
British Airways
Thu, 6 Nov - Thu, 13 Nov
SDF
Louisville
LHR
London
€594 Return, found 4 days ago
€594
Return
found 4 days ago
Select British Airways flight, departing Thu, 6 Nov from Louisville to London, returning Thu, 13 Nov, priced at €594 found 4 days ago
American Airlines
Thu, 6 Nov - Thu, 13 Nov
SDF
Louisville
LHR
London
€594 Return, found 4 days ago
€594
Return
found 4 days ago
Select American Airlines flight, departing Thu, 6 Nov from Louisville to London, returning Thu, 13 Nov, priced at €594 found 4 days ago
KLM
Thu, 6 Nov - Thu, 13 Nov
SDF
Louisville
LHR
London
€595 Return, found 4 days ago
€595
Return
found 4 days ago
Select KLM flight, departing Thu, 6 Nov from Louisville to London, returning Thu, 13 Nov, priced at €595 found 4 days ago

Find the cheapest month to fly from Louisville (SDF) to London (LHR)

August is typically the cheapest month to fly

From €488 - €1,273 per traveller.

Frequently asked questions

How much is a flight from Louisville Muhammad Ali Intl. Airport to London Heathrow?
The lowest price advertised for a round-trip flight from Louisville Intl. Airport (SDF) to Heathrow Airport is €551. But you better act soon. This price is based on fares available within the last 7 days on Expedia for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Louisville Intl. Airport (SDF) to Heathrow Airport?
Most flights can be cancelled online, but each airline has its own terms and conditions. If you do have to cancel your flight, visit our Customer Service Portal and follow the instructions.
How do I find cheap flights from Louisville Muhammad Ali Intl. Airport to Heathrow Airport (LHR) that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for SDF to Heathrow Airport flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Louisville Intl. Airport (SDF) to Heathrow Airport?
Louisville to Hounslow is around 6,500 kilometres, so get ready to spend quite a while in the air. Don't forget to pack all the essentials, from your earplugs to your eye mask. Take a few snacks to munch on throughout your trip too.
Which airlines fly direct from SDF to Heathrow Airport (LHR)?
There are no direct flights, so you'll have to make at least one stop between Louisville Muhammad Ali Intl. Airport and LHR. Use the layover time to stretch your legs and take a break.
Are Louisville Muhammad Ali Intl. Airport to Heathrow Airport (LHR) flight tickets cheaper when they're purchased at the last minute?
Flight prices from SDF to Heathrow Airport are available up to 12 months before departure on Expedia. And although you may occasionally nab fantastic last-minute deals, it's never a sure thing. Also, booking your flights well in advance means you'll have more options — and you can avoid being wedged in the dreaded middle seat! We're constantly updating our fares to bring you the best bargains, so keep checking in for all the latest specials.

Travel information

Origin airport
Louisville Intl.
Destination airport
Heathrow
Return price
€550
Distance
6457 km

Book with confidence

Perfect flights from Louisville to London

Embark on an unforgettable journey without breaking the bank with Expedia's incredible deals on cheap flights from Louisville to London. Whether you're aching for a romantic escape with your partner, craving an adventurous solo expedition, or yearning to immerse yourself in the local history and culture, we've got you covered.
 
Picture yourself strolling through the streets of , surrounded by breathtaking architecture and absorbing the vibrant atmosphere of this captivating city. Indulge in the mouth-watering local specialties, from tantalizing street food to exquisite fine dining. With Expedia, you can experience all of this and more, without sacrificing your budget.
 
Our flexible Louisville Intl. to Heathrow ticket options cater to your travel preferences, with incredible one-way fares from €400 and roundtrip prices from €551. Whether you're planning a short city break or a longer adventure, our dynamic pricing ensures that you find the best deals for your journey.
 
But the magic doesn't stop there. Expedia offers a range of partner services to enhance your trip. Rent a car at Heathrow and explore and its surrounding areas at your own pace. Discover hidden gems off the beaten path, and create unforgettable memories. We also provide a handpicked selection of accommodations, from charming bed and breakfasts to luxury hotels, ensuring that you have a comfortable and memorable stay.
 
Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support are designed to make your travel experience seamless and stress-free. So, why wait? Book your to travel arrangements today and embark on the journey of a lifetime in London.
Perfect flights from Louisville to London

Explore a world of travel with Expedia

*Available to Expedia members.