SDF - LHR

£166 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 25/3. 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
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41 299 237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest return fare
£420
Typical prices: £618-£821
Lufthansa
Sat 10/1Sat 17/1
SDF - LHR • 1 stop
Cheapest one-way flight
£166
Typical prices: £419-£422
British Airways
Wed 25/3
SDF - LHR • 1 stop
When to book
2 weeks
in advance
Our data shows that travellers who book at least 2 weeks in advance save around 39% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
February
Cheapest • 36% 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

Sat, 10 Jan - Sat, 17 Jan
Lufthansa Logo
14:05 - 05:55
SDF
-
LHR
10h 50m1 stop
Lufthansa Logo
07:40 - 22:30
LHR
-
SDF
19h 50m2 stops
£420Lufthansa
Sun, 18 Jan - Sun, 25 Jan
Lufthansa Logo
14:10 - 06:40
SDF
-
LHR
11h 30m1 stop
Lufthansa Logo
08:30 - 19:43
LHR
-
SDF
16h 13m2 stops
£427Lufthansa
Wed, 18 Feb - Wed, 25 Feb
Finnair Logo
14:04 - 11:40
SDF
-
LHR
16h 36m1 stop
Finnair Logo
08:20 - 20:02
LHR
-
SDF
16h 42m1 stop
£442Finnair
Wed, 18 Feb - Wed, 25 Feb
Lufthansa Logo
13:50 - 11:05
SDF
-
LHR
16h 15m1 stop
Lufthansa Logo
06:35 - 19:42
LHR
-
SDF
18h 07m2 stops
£446Lufthansa
Wed, 8 Apr - Mon, 13 Apr
British Airways Logo
15:51 - 09:05
SDF
-
LHR
12h 14m1 stop
British Airways Logo
16:15 - 20:55
LHR
-
SDF
33h 40m2 stops
£449British Airways
Sun, 18 Jan - Sun, 25 Jan
Lufthansa Logo
13:40 - 06:20
SDF
-
LHR
11h 40m1 stop
Lufthansa Logo
15:10 - 23:23
LHR
-
SDF
13h 13m1 stop
£450Lufthansa
Wed, 11 Feb - Mon, 16 Feb
Delta Logo
10:13 - 06:25
SDF
-
LHR
15h 12m1 stop
Delta Logo
11:45 - 23:58
LHR
-
SDF
17h 13m2 stops
£451Delta
Sat, 10 Jan - Sun, 18 Jan
Lufthansa Logo
14:10 - 10:50
SDF
-
LHR
15h 40m1 stop
Lufthansa Logo
07:30 - 22:30
LHR
-
SDF
20h 00m2 stops
£453Lufthansa
Wed, 11 Feb - Mon, 16 Feb
Delta Logo
10:13 - 08:45
SDF
-
LHR
17h 32m2 stops
Delta Logo
11:45 - 23:58
LHR
-
SDF
17h 13m2 stops
£455Delta
Sun, 12 Apr - Wed, 22 Apr
Delta Logo
12:35 - 13:10
SDF
-
LHR
19h 35m1 stop
Delta Logo
09:00 - 20:52
LHR
-
SDF
16h 52m2 stops
£460Delta
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 January.

What’s the cheapest day of the week to fly from Louisville to London Heathrow Airport?

The average price of all round-trip flights from Louisville to London Heathrow Airport clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Louisville to London Heathrow Airport, look for departures on Sundays and avoid leaving on a Wednesday, as it's usually the priciest day. When flying back from London Heathrow Airport, Tuesday is the cheapest day to fly and Friday is the most expensive.

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 £472 (return) on average. On the other hand, the most expensive months are June and December, where the average cost of round-trip tickets is £1,152 and £896 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 39% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 5 weeks before departure.

Find deals

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

Low seasonJanuary
Cheapest flight£166
Best time to beat the crowds but there is an average 10% increase in price.
Most popular time to fly (19% 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 £166 for a one-way ticket and £420 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)