Cheap flights from Louisville to London-Heathrow
Cheap return flights from Louisville to London-Heathrow
Find the best deals
All prices shown are per person based on return flights only. Prices found in the last 48 hours.
London-Heathrow flight facts
What you need to know
What are the cheapest airlines?
- American Airlines
- British Airways
- Delta Air Lines
These airlines usually offer the cheapest flights from Louisville to London-Heathrow.
What airlines fly indirectly?
- United Airlines
- Air Canada
- Lufthansa
These airlines fly from Louisville to London-Heathrow, but you’ll have at least one layover.
How long is the flight?
8 hours 30 minutes
This is the shortest flight time from Louisville to London-Heathrow.
Alternative flights from the UK to London-Heathrow
Check out prices for other routes
Alternative flights from Louisville
You might find cheaper flights nearby
Today alone, Netflights has searched over five flights. 05 / Feb / 2026 is currently the lowest priced day of the year to fly the Louisville/London-Heathrow route. There are around 35 flights on any given week from the UK to London-Heathrow and the cheapest month to fly right now is February. Not suitable? Try running another search or viewing all cheap flight deals.
How to get cheap flights from Louisville to London-Heathrow
Tips and advice from our flight experts
You've searched for flights from Louisville to London-Heathrow. We've found 25 flights and compared them to give you the best offers. American Airlines is typically the cheapest for this route, so keep an eye on them. The cheapest offer we've found is a one-way ticket for £57 from Louisville to London-Heathrow on 14/04/2026 at 00:30.
We've scanned hundreds of airfares from various airlines across the globe. In total, we've found 10 airlines that operate the 6,800 km flight from Louisville to London-Heathrow.
To find the best offers, consider booking 2-3 months in advance or looking for last-minute deals. Traveling during off-peak seasons can also help. British Airways is a popular and affordable option for this route, with an average flight duration of 8 hours 30 minutes. After selecting an offer, fill out your information and proceed with payment. Don't forget to check our flight + hotel service to book everything at once, saving you time and money.
Other popular destinations near London-Heathrow
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