Southwest® flights from Washington D.C. Reagan National to Louisville from $114

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Low fares from Washington D.C. Reagan National to Louisville

$

Washington D.C. Reagan National (DCA)to

Louisville (SDF)
Depart: 11/18/2026

One-way

Basic

From
$114
Seen: 16 hrs ago

Washington D.C. Reagan National (DCA)to

Louisville (SDF)
Depart: 11/12/2026

One-way

Basic

From
$114
Seen: 49 minutes ago

Washington D.C. Reagan National (DCA)to

Louisville (SDF)
Depart: 12/09/2026

One-way

Basic

From
$114
Seen: 15 hrs ago

Washington D.C. Reagan National (DCA)to

Louisville (SDF)
Depart: 12/14/2026

One-way

Basic

From
$114
Seen: 6 hrs ago

Washington D.C. Reagan National (DCA)to

Louisville (SDF)
Depart: 11/07/2026

One-way

Basic

From
$114
Seen: 5 hrs ago

Washington D.C. Reagan National (DCA)to

Louisville (SDF)
Depart: 10/24/2026

One-way

Basic

From
$114
Seen: 1 hour ago

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Explore flights from Washington D.C. Reagan National to Louisville

Oct 2026
From$114*
Seen: 1 hour ago
One Way/Basic
Nov 2026
From$114*
Seen: 16 hrs ago
One Way/Basic
Dec 2026
From$114*
Seen: 6 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $114
cmp-daily-histogram-bars-legend-max-price-aria-label $340
Displaying fares for October-2026
  • DCA–SDF, 10/01/2026: From $260
    01

    Thu

    OCT

  • DCA–SDF, 10/02/2026: From $260
    02

    Fri

  • DCA–SDF, 10/03/2026: From $235
    03

    Sat

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    04

    Sun

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    05

    Mon

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    06

    Tue

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    07

    Wed

  • DCA–SDF, 10/08/2026: From $289
    08

    Thu

  • DCA–SDF, 10/09/2026: From $340
    09

    Fri

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    10

    Sat

  • DCA–SDF, 10/11/2026: From $255
    11

    Sun

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    12

    Mon

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    13

    Tue

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    14

    Wed

  • DCA–SDF, 10/15/2026: From $222
    15

    Thu

  • DCA–SDF, 10/16/2026: From $210
    16

    Fri

  • DCA–SDF, 10/17/2026: From $205
    17

    Sat

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    18

    Sun

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    19

    Mon

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    20

    Tue

  • DCA–SDF, 10/21/2026: From $175
    21

    Wed

  • DCA–SDF, 10/22/2026: From $203
    22

    Thu

  • DCA–SDF, 10/23/2026: From $222
    23

    Fri

  • DCA–SDF, 10/24/2026: From $114
    24

    Sat

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    25

    Sun

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    26

    Mon

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    27

    Tue

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    28

    Wed

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    29

    Thu

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    30

    Fri

  • DCA–SDF: cmp-view-offers-disclaimer. Find Offers
    31

    Sat

    • Range$114-$340

    *Fares displayed have been collected within the last 24 hours and may no longer be available at time of booking. Additional fees and charges for optional products and services may apply. Modifying this information may result in a different fare. To find the most updated fare, please visit Southwest.com. Fares listed are Basic, which are subject to additional terms and conditions.

    Flight Details

    Departing from:
    Ronald Reagan National Airport
    Arriving at:
    Louisville International Airport
    Distance:
    474 miles

    Route Information

    102† Weekly flights

    † Weekly flights based on DOT published scheduled average flights Monday through Sunday between 9/1/2025 and 9/30/2025. Note: route may not operate every day of the week.

    ‡ Nonstop flights based on DOT published scheduled average flights Monday through Sunday between 9/1/2025 and 9/30/2025.

    Questions we hear the most

    There are 102 weekly flights from Washington, D.C. (Reagan National) to Louisville on Southwest Airlines.
    To find the lowest fares by day and time to fly Washington, D.C. (Reagan National) to Louisville with Southwest, check out our Low Fare Calendar.
    You can rent a car at Louisville International Airport book yours with your flight.
    Yes! Flights from Washington, D.C. (Reagan National) to Louisville—or from here or there to anywhere—can be changed with no change fees. Fare difference may apply.
    Check the status of your upcoming Southwest flight.
    Check out the Southwest Airlines® Help Center for answers about everything Southwest.

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