SDF - LHR

£172 Find Cheap Flights from Louisville to London Heathrow Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Louisville to Heathrow departing on 27/7. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to London Heathrow Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Louisville to London, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Louisville to London, as well as popular online travel agencies
Travellers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest return fare
£520
Typical prices: £518-£728
British Airways
Mon 17/8Tue 25/8
SDF - LHR • 1 stop
Cheapest one-way flight
£172
Typical prices: £442-£598
British Airways
Mon 27/7
SDF - LHR • 1 stop
Direct flights
Not available
There are currently no direct flights between Louisville and Heathrow. You’ll need at least 1 connection.
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Top stopover airports
Atlanta (ATL)
Cheapest • Avg £556 (return)
Atlanta (ATL)
Shortest trip • 10h 59m (one-way)
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When to book
2 weeks
in advance
Our data shows that travellers who book at least 2 weeks in advance save around 53% compared to booking last minute.
Insights
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When to travel
February
Cheapest • 31% price drop
May
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Heathrow!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Louisville to Heathrow (SDF-LHR)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Louisville to Heathrow that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Louisville to Heathrow

Mon, 17 Aug - Tue, 25 Aug
British Airways Logo
16:00 - 08:00
SDF
-
LHR
11h 00m
1 stop
British Airways Logo
08:55 - 17:31
LHR
-
SDF
13h 36m
1 stop
£520British Airways
Wed, 26 Aug - Wed, 2 Sep
British Airways Logo
16:50 - 10:55
SDF
-
LHR
13h 05m
1 stop
British Airways Logo
08:55 - 17:31
LHR
-
SDF
13h 36m
1 stop
£521British Airways
Wed, 26 Aug - Wed, 2 Sep
Multiple Airlines Logo
12:15 - 10:55
SDF
-
LHR
17h 40m
1 stop
Multiple Airlines Logo
06:15 - 23:01
LHR
-
SDF
21h 46m
2 stops
£522Multiple Airlines
Wed, 22 Jul - Thu, 10 Sep
Finnair Logo
19:20 - 12:15
SDF
-
LHR
11h 55m
1 stop
Finnair Logo
12:15 - 22:58
LHR
-
SDF
15h 43m
1 stop
£523Finnair
Mon, 27 Jul - Wed, 9 Sep
Finnair Logo
13:16 - 12:10
SDF
-
LHR
17h 54m
1 stop
Finnair Logo
08:55 - 19:39
LHR
-
SDF
15h 44m
1 stop
£524Finnair
Wed, 26 Aug - Wed, 2 Sep
Lufthansa Logo
19:43 - 16:40
SDF
-
LHR
15h 57m
2 stops
Lufthansa Logo
09:00 - 22:22
LHR
-
SDF
18h 22m
2 stops
£533Lufthansa
Wed, 15 Apr - Wed, 22 Apr
KLM Logo
17:48 - 13:15
SDF
-
LHR
14h 27m
1 stop
KLM Logo
11:45 - 23:59
LHR
-
SDF
17h 14m
2 stops
£538KLM
Mon, 17 Aug - Tue, 25 Aug
Lufthansa Logo
19:43 - 18:40
SDF
-
LHR
17h 57m
2 stops
Lufthansa Logo
08:30 - 00:05
LHR
-
SDF
20h 35m
2 stops
£539Lufthansa
Mon, 17 Aug - Tue, 25 Aug
Lufthansa Logo
19:43 - 18:40
SDF
-
LHR
17h 57m
2 stops
Lufthansa Logo
09:30 - 19:19
LHR
-
SDF
14h 49m
2 stops
£541Lufthansa
Wed, 15 Apr - Wed, 22 Apr
Virgin Atlantic Logo
15:10 - 07:10
SDF
-
LHR
11h 00m
1 stop
Virgin Atlantic Logo
10:45 - 17:27
LHR
-
SDF
11h 42m
1 stop
£544Virgin Atlantic
Booking Insights

KAYAK’s insights & trends for Louisville to Heathrow flights

Get data-powered insights and trends into flights from Louisville to Heathrow to help you find the cheapest flights, the best time to fly and much more.

How much is a return flight from Louisville to London Heathrow Airport?

This analysis is based on the cheapest return trip price found on KAYAK in the last 12 months by searching for a flight from Louisville to London Heathrow Airport departing in August.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Louisville to London Heathrow Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Louisville to London Heathrow Airport is February, where tickets cost £463 (return) on average. On the other hand, the most expensive months are June and May, where the average cost of round-trip tickets is £1,097 and £889 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Louisville to London Heathrow Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Louisville to London Heathrow Airport, you should book around 2 weeks before departure, which saves you about 53% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 2 weeks before departure.

Find deals

Good to know - Cheap tickets from Louisville to London Heathrow Airport

Low seasonJanuary
Cheapest flight£172
Best time to beat the crowds (28% less expensive on average)
Most popular time to fly (32% more expensive on average)
Flight from Louisville to London Heathrow Airport

When to book flights from Louisville to Heathrow

Are your dates flexible? Find out the best times to travel from Louisville to Heathrow based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Louisville to London Heathrow Airport flights

  • What is the cheapest flight from Louisville to London Heathrow Airport?

    In the last 3 days, the lowest price for a flight from Louisville to London Heathrow Airport was £172 for a one-way ticket and £520 for a return.

  • Which aircraft models fly most regularly from Louisville to London Heathrow Airport?

    We unfortunately don’t have that data for this specific route.

  • How does KAYAK find such low prices on flights from Louisville to London Heathrow Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Louisville to London Heathrow Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Louisville to London Heathrow Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London Heathrow Airport from Louisville is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Louisville to London Heathrow Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to London Heathrow Airport with an airline and back to Louisville with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Louisville to London Heathrow Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London Heathrow Airport from Louisville up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight from Louisville to Heathrow

Information on your arrival and departure airports

Louisville (SDF)
Heathrow (LHR)