SDF - LHR

$463 Find Cheap Flights from Louisville to London Heathrow Airport - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$796
Typical prices: $767-$1,241
United Airlines
Wed 2/14Sat 2/17
SDF - LHR • 1 stop
Cheapest one-way
$348
Typical prices: $381-$564
United Airlines
Sun 12/2
SDF - LHR • 1 stop
Nonstop flights
Not available
There are currently no direct flights between Louisville and London Heathrow Airport. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to book
10 weeks
in advance
Our data shows that travelers who book at least 10 weeks in advance save around 28% compared to booking last minute.
Insights
Insights
When to travel
November
Cheapest • 29% price drop
April
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Atlanta Hartsfield-Jackson (ATL)
Cheapest • Avg $881 (round-trip)
Chicago O'Hare Intl (ORD)
Shortest trip • 11h 29m (one-way)
Insights
Insights
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We hope you love your trip to London Heathrow Airport!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Louisville to London (SDF-LHR)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Louisville to London

Sun, Feb 14 - Wed, Feb 17
United Airlines Logo
3:50 pm - 7:40 amSDF  Louisville Intl-LHR London Heathrow
34h 50m1 stop Houston George Bush Intcntl
United Airlines Logo
6:50 am - 4:49 pmLHR  London Heathrow-SDF Louisville Intl
14h 59m2 stops Brussels Bruxelles-National Chicago O'Hare Intl
$796United Airlines
Tue, Nov 17 - Tue, Nov 24
Iberia Logo
1:14 pm - 10:25 amSDF  Louisville Intl-LHR London Heathrow
16h 11m1 stop Chicago O'Hare Intl
Iberia Logo
7:30 am - 9:39 pmLHR  London Heathrow-SDF Louisville Intl
19h 09m2 stops Madrid Barajas Chicago O'Hare Intl
$864Iberia
Mon, Nov 16 - Tue, Nov 24
Iberia Logo
10:03 am - 8:35 amSDF  Louisville Intl-LHR London Heathrow
17h 32m1 stop Chicago O'Hare Intl
Iberia Logo
6:05 am - 9:39 pmLHR  London Heathrow-SDF Louisville Intl
20h 34m2 stops Madrid Barajas Chicago O'Hare Intl
$864Iberia
Sun, Feb 14 - Wed, Feb 17
British Airways Logo
12:41 pm - 6:55 amSDF  Louisville Intl-LHR London Heathrow
13h 14m1 stop Chicago O'Hare Intl
British Airways Logo
11:45 am - 7:00 pmLHR  London Heathrow-SDF Louisville Intl
12h 15m1 stop Charlotte Douglas
$884British Airways
Mon, Nov 16 - Wed, Nov 25
Delta Logo
1:01 pm - 9:00 amSDF  Louisville Intl-LHR London Heathrow
14h 59m1 stop Atlanta Hartsfield-Jackson
Delta Logo
6:30 am - 9:13 pmLHR  London Heathrow-SDF Louisville Intl
19h 43m2 stops Amsterdam Schiphol Detroit Metropolitan Wayne County
$888Delta
Sun, Oct 4 - Thu, Oct 15
United Airlines Logo
2:12 pm - 6:55 amSDF  Louisville Intl-LHR London Heathrow
11h 43m1 stop Washington, D.C. Dulles Intl
United Airlines Logo
6:50 am - 5:40 pmLHR  London Heathrow-SDF Louisville Intl
15h 50m2 stops Brussels Bruxelles-National Chicago O'Hare Intl
$888United Airlines
Mon, Nov 16 - Tue, Nov 24
British Airways Logo
6:31 pm - 11:35 amSDF  Louisville Intl-LHR London Heathrow
12h 04m1 stop Chicago O'Hare Intl
British Airways Logo
2:45 pm - 12:15 amLHR  London Heathrow-SDF Louisville Intl
14h 30m1 stop Dallas/Fort Worth
$894British Airways
Mon, Nov 16 - Wed, Nov 25
American Airlines Logo
1:14 pm - 6:55 amSDF  Louisville Intl-LHR London Heathrow
12h 41m1 stop Chicago O'Hare Intl
American Airlines Logo
8:20 am - 6:08 pmLHR  London Heathrow-SDF Louisville Intl
14h 48m1 stop Dallas/Fort Worth
$897American Airlines
Wed, Oct 7 - Wed, Oct 14
American Airlines Logo
12:46 pm - 7:55 amSDF  Louisville Intl-LHR London Heathrow
14h 09m1 stop Chicago O'Hare Intl
American Airlines Logo
12:30 pm - 10:05 pmLHR  London Heathrow-SDF Louisville Intl
14h 35m1 stop Charlotte Douglas
$897American Airlines
Sun, Sep 20 - Wed, Sep 30
Delta Logo
5:55 pm - 1:15 pmSDF  Louisville Intl-LHR London Heathrow
14h 20m1 stop Atlanta Hartsfield-Jackson
Delta Logo
6:30 am - 7:14 pmLHR  London Heathrow-SDF Louisville Intl
17h 44m2 stops Amsterdam Schiphol Minneapolis St Paul
$922Delta
Booking Insights

Price, demand and travel trends for Louisville to London Heathrow Airport flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from Louisville to London Heathrow Airport with more confidence.

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

Round-trip flights from Louisville to London Heathrow Airport start at $796. Prices are typical for this route right now, with typical round-trip fares ranging from $767 to $1,241. The lowest price found in the past 5 days was $796 on United Airlines.

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

Tuesday is the cheapest day of the week to fly from Louisville to London Heathrow Airport, it is 7% cheaper than the average day. Sunday is the most expensive day with flight prices 13% higher than average. Based on deals found by KAYAK users in the last 12 months.

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

  • November is the cheapest month to fly from Louisville to London Heathrow Airport at $728 round-trip.
  • July ($1,348) and June ($1,295) are the most expensive months.
  • The price difference between flying in the cheapest and most expensive months is 85% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are prices from Louisville to London Heathrow Airport the cheapest?

Flights from Louisville to London Heathrow Airport are cheapest 10 weeks before departure. Booking in this window typically costs about 28% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

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Key details for Louisville to London Heathrow Airport flights

Low season

December

Cheapest flight

$348
Best time to beat the crowds but there is an average 24% increase in price.
Most popular time to fly and prices are also 5% lower on average.
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

Your Louisville to London Heathrow Airport flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • Which airports can I use when flying from Louisville to London Heathrow Airport?

    Flights from Louisville to London Heathrow Airport usually depart from Louisville Intl (SDF) and arrive at London Heathrow (LHR).

  • What cabin classes can I book on flights from Louisville to London Heathrow Airport?

    Four cabin classes are available on flights from Louisville to London Heathrow Airport:

    • Economy Class
    • Premium Economy Class
    • Business Class
    • First Class

    Prices vary by airline.

  • Which airports do connecting flights from Louisville to London Heathrow Airport pass through?

    One-stop flights from Louisville to London Heathrow Airport most commonly connect through:

    • Chicago O'Hare Intl (ORD) - 30% of one-stop connections
    • Charlotte Douglas (CLT) - 27% of one-stop connections
    • Atlanta Hartsfield-Jackson (ATL) - 25% of one-stop connections
    • Washington, D.C. Dulles Intl (IAD) - 11% of one-stop connections

    Chicago O'Hare Intl (ORD) handles the largest share of one-stop connections on this route.

  • Can I save money by using flexible dates for flights from Louisville to London Heathrow Airport?

    Yes. Being flexible with your travel dates can save you up to 18% on the Louisville to London Heathrow Airport route. Tuesday is the cheapest departure day at $959 round-trip on average, while Sunday is the most expensive at $1,157, a difference of $198. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What popular places can I visit in London Heathrow Airport?

    Some of the most popular sights in London Heathrow Airport are Paddington Station, Central London and London Victoria Station. These are among the most viewed places in London Heathrow Airport on KAYAK.

  • How expensive are last-minute Louisville to London Heathrow Airport flights?

    Last-minute fares on this route - booked within 2 weeks of departure - run 6% above the route average of $1,022. Book 10 weeks before departure for the lowest fares.

  • How long is a flight from Louisville to London Heathrow Airport?

    A nonstop flight from Louisville to London Heathrow Airport takes 0h 00m, covering 4,033 miles.

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

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How are flight prices from Louisville to London Heathrow Airport looking right now?

    One-way fares from Louisville to London Heathrow Airport are currently in line with typical prices for this route. Average one-way fares are about $468.

  • How much time can I save by choosing a different layover airport from Louisville to London Heathrow Airport?

    Flying via Chicago O'Hare Intl (ORD) gives the shortest average 1-stop total travel time at 11h 29m, compared with 11h 40m via Philadelphia (PHL) and 11h 41m via Detroit Metropolitan Wayne County (DTW).

  • What is the time difference between Louisville and London Heathrow Airport?

    London Heathrow Airport is 5 hours ahead of Louisville (British Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

  • What car rental options are available at London Heathrow Airport (LHR)?

    London Heathrow Airport (LHR) hosts 5 major car rental companies, with daily rates starting from around $7 for economy cars. Top options include:
    · GREEN MOTION
    · DRIVALIA
    · Europcar
    · Alamo
    · Hertz

  • How much should I expect to pay for a Louisville to London Heathrow Airport flight?

    Round-trip flights from Louisville to London Heathrow Airport range from $767 to $1,241, with an average of $1,022 over the past 12 months. Anything below $767 counts as a good deal.

Your guide to booking Louisville to London Heathrow Airport flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates can be flexible, aim for a Tuesday departure instead of Sunday. On this route, Tuesday flights average $959 - about $198 less than Sunday (17% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 10 weeks before you fly. On this route, that window historically saves about 28% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Louisville to London Heathrow Airport trip for November. Fares historically average $728 round-trip in that month - typically $620 less than the most expensive month, which is July (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to London Heathrow Airport.
    - Hilton London Heathrow Airport

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

Information on your arrival and departure airports

Louisville (SDF)
Heathrow (LHR)