Cheap flights from Louisville to London Heathrow

Q: What are the cheapest airlines?

KLM, Virgin Atlantic. These airlines usually offer the cheapest flights from Louisville to London Heathrow.

Q: What airlines fly indirectly?

Virgin Atlantic, British Airways, KLM, Lufthansa. These airlines fly from Louisville to London Heathrow, but you’ll have at least one layover.

Q: How long is the flight?

10 hrs 35 mins. This is the shortest flight time from Louisville to London Heathrow.

from as little as £662

14 nights in London, departing Louisville on 20 / Apr / 2025 with Virgin Atlantic (price found 7 hours ago)

Subject to availability, prices correct of the last 24 hours

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Cheap return flights from Louisville to London Heathrow

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The Louisville / London Heathrow route

All 6500 km of it

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London Heathrow flight facts

What you need to know

What are the cheapest airlines?

KLM
Virgin Atlantic

These airlines usually offer the cheapest flights from Louisville to London Heathrow.

What airlines fly indirectly?

Virgin Atlantic
British Airways
KLM
Lufthansa

These airlines fly from Louisville to London Heathrow, but you’ll have at least one layover.

How long is the flight?

10 hrs 35 mins

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

Louisville to London City Airport

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Louisville to London Gatwick

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Alternative flights from Louisville

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Geneva from Louisville

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20 / Apr / 2025 is currently the lowest priced day of the year to fly the Louisville/London Heathrow route. There are around 25 flights on any given week from the UK to London Heathrow and the cheapest month to fly right now is April.

Not suitable? Try running another search or viewing all cheap flight deals.

Min / Max Temperature (°C)

LOWEST

2 °C

AVG

11 °C

HIGHEST

24 °C

Rainfall (mm)

LOWEST

38.1 mm

AVG

52.5 mm

HIGHEST

66 mm

Key facts about London Heathrow

Currency

British pound

Language

English

Timezone

0 hrs behind GMT

How to get cheap flights from Louisville to London Heathrow

Tips and advice from our flight experts

If you want a cheap flight from Louisville to London, you've got four airlines to choose from. You can use the search box to filter your preferences, but we've found that the cheapest day to fly is 20 / Apr / 2025.

You can use the filters on your search to see more flights and find cheaper rates – London has more than one airport. So if you don't need to fly into London Heathrow, it's worth checking your other options. The 6500 km flight usually takes about 12 hrs.

There are about 25 flights to or via London every week, so you have plenty of options. Keep your eye out for flights with Virgin Atlantic, British Airways and KLM – these are the most popular airlines for flying to .

During this peak season, hotel and holiday prices often increase too, so it's best to book early. Or you could keep your fingers crossed and hold out for a last-minute deal.