SDF - LHR

$331 Find Cheap Flights from Louisville to London Heathrow Airport - Compare and Save

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 London departing on 11/1. 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

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Everything you should know

Cheapest round-trip
$878
Typical prices: $690-$890
British Airways
Tue 9/22Wed 9/30
SDF - LHR • 1 stop
Cheapest one-way
$331
American Airlines
Sun 11/1
SDF - LHR • 1 stop
Nonstop flights
Not available
There are currently no direct flights between Louisville and London. You'll need at least 1 connection.
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Top layover airports
Philadelphia (PHL)
Cheapest • Avg $882 (round-trip)
Philadelphia (PHL)
Shortest trip • 9h 56m (one-way)
Insights
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When to travel
February
Cheapest • 35% price drop
April
Most popular
Good to know
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+1
+1
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+1
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Booking Insights
Flight Deals

Cheap Flights from Louisville to London (SDF-LHR)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Louisville to London 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 round-trip flight deals from Louisville to London

Tue, Sep 22 - Wed, Sep 30
British Airways Logo
2:47 pm - 6:50 am
SDF
-
LHR
11h 03m
1 stop
British Airways Logo
7:50 am - 11:22 pm
LHR
-
SDF
20h 32m
2 stops
$878British Airways
Mon, Sep 21 - Fri, Oct 2
Delta Logo
8:09 am - 6:25 am
SDF
-
LHR
17h 16m
1 stop
Delta Logo
6:30 am - 5:10 pm
LHR
-
SDF
15h 40m
2 stops
$884Delta
Mon, Sep 21 - Fri, Oct 2
United Airlines Logo
9:00 am - 8:30 am
SDF
-
LHR
18h 30m
1 stop
United Airlines Logo
6:50 am - 5:40 pm
LHR
-
SDF
15h 50m
2 stops
$885United Airlines
Tue, Sep 22 - Wed, Sep 30
Delta Logo
9:45 am - 7:10 am
SDF
-
LHR
16h 25m
2 stops
Delta Logo
6:30 am - 5:10 pm
LHR
-
SDF
15h 40m
2 stops
$889Delta
Mon, Sep 21 - Fri, Oct 2
British Airways Logo
5:59 pm - 10:50 am
SDF
-
LHR
11h 51m
1 stop
British Airways Logo
2:25 pm - 10:33 pm
LHR
-
SDF
13h 08m
1 stop
$891British Airways
Mon, Sep 21 - Fri, Oct 2
British Airways Logo
10:29 am - 7:40 am
SDF
-
LHR
16h 11m
1 stop
British Airways Logo
4:25 pm - 10:46 am
LHR
-
SDF
23h 21m
1 stop
$892British Airways
Mon, Sep 21 - Fri, Oct 2
Air Canada Logo
6:15 am - 10:00 am
SDF
-
LHR
22h 45m
2 stops
Air Canada Logo
12:40 pm - 8:13 pm
LHR
-
SDF
36h 33m
2 stops
$893Air Canada
Mon, Sep 21 - Fri, Oct 2
Air Canada Logo
6:15 am - 10:00 am
SDF
-
LHR
22h 45m
2 stops
Air Canada Logo
12:40 pm - 8:13 pm
LHR
-
SDF
36h 33m
2 stops
$894Air Canada
Wed, Sep 30 - Tue, Oct 13
Air Canada Logo
9:04 am - 8:35 am
SDF
-
LHR
18h 31m
2 stops
Air Canada Logo
5:40 pm - 8:31 pm
LHR
-
SDF
31h 51m
2 stops
$899Air Canada
Sun, Sep 27 - Tue, Oct 13
Air Canada Logo
5:15 am - 6:30 am
SDF
-
LHR
20h 15m
2 stops
Air Canada Logo
5:40 pm - 8:31 pm
LHR
-
SDF
31h 51m
2 stops
$902Air Canada
Booking Insights

KAYAK's insights & trends for Louisville to London flights

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

How much is a round-trip flight from Louisville to London Heathrow Airport?

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

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 $630 (return) on average. On the other hand, the most expensive months are July and June, where the average cost of round-trip tickets is $1,348 and $1,345 respectively.

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Good to know

Low seasonJanuary
Cheapest flight$331
Best time to beat the crowds with an average 33% drop in price.
Most popular time to fly with an average 14% increase in price.
Flight from Louisville to London Heathrow Airport

When to book flights from Louisville to London

Are your dates flexible? Find out the best times to travel from Louisville to London based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips 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 5 days, the lowest price for a flight from Louisville to London Heathrow Airport was $331 for a one-way ticket and $860 for a round-trip.

  • Do I need a passport to fly between Louisville and London Heathrow Airport?

    Yes

  • Which airports will I be using when flying from Louisville to London Heathrow Airport?

    Louisville airport is called Louisville Intl and the only airport in London Heathrow Airport is London Heathrow.

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

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

  • Which airline alliances offer flights from Louisville to London Heathrow Airport?

    Star Alliance, SkyTeam, and oneworld are the airline alliances operating flights between Louisville and London Heathrow Airport, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from Louisville to London, Delta or KLM?

    The two airlines most popular with KAYAK users for flights from Louisville to London are Delta and KLM. With an average price for the route of $859 and an overall rating of 7.8, Delta is the most popular choice. KLM is also a great choice for the route, with an average price of $716 and an overall rating of 7.8.

  • 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 travelers 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 round-trip ticket. You could then fly to London Heathrow Airport with an airline and back to Louisville with another airline. Booking your flights between Louisville and LHR can sometimes prove cheaper using this method.

  • 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 London

Information on your arrival and departure airports

Louisville (SDF)
Heathrow (LHR)