Southwest® flights from Louisville to Portland, ME from $134

Promo Code

Low fares from Louisville to Portland, ME

$

Louisville (SDF)to

Portland, ME (PWM)
Depart: 11/17/2026

One-way

Basic

From
$134
Seen: 20 hrs ago

Louisville (SDF)to

Portland, ME (PWM)
Depart: 11/19/2026

One-way

Basic

From
$134
Seen: 19 hrs ago

Louisville (SDF)to

Portland, ME (PWM)
Depart: 11/18/2026

One-way

Basic

From
$134
Seen: 19 hrs ago

Louisville (SDF)to

Portland, ME (PWM)
Depart: 12/31/2026

One-way

Basic

From
$134
Seen: 23 hrs ago

Louisville (SDF)to

Portland, ME (PWM)
Depart: 11/16/2026

One-way

Basic

From
$134
Seen: 23 hrs ago

Louisville (SDF)to

Portland, ME (PWM)
Depart: 11/23/2026

One-way

Basic

From
$134
Seen: 23 hrs ago

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Explore flights from Louisville to Portland, ME

Oct 2026
From$315*
Seen: 2 hrs ago
One Way/Basic
Nov 2026
From$134*
Seen: 19 hrs ago
One Way/Basic
Dec 2026
From$134*
Seen: 23 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $134
cmp-daily-histogram-bars-legend-max-price-aria-label $402
Displaying fares for October-2026
  • SDF–PWM: cmp-view-offers-disclaimer. Find Offers
    21

    Wed

    OCT

  • SDF–PWM: cmp-view-offers-disclaimer. Find Offers
    22

    Thu

  • SDF–PWM, 10/23/2026: From $402
    23

    Fri

  • SDF–PWM, 10/24/2026: From $315
    24

    Sat

  • SDF–PWM, 10/25/2026: From $361
    25

    Sun

  • SDF–PWM, 10/26/2026: From $361
    26

    Mon

  • SDF–PWM, 10/27/2026: From $315
    27

    Tue

  • SDF–PWM: cmp-view-offers-disclaimer. Find Offers
    28

    Wed

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    29

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  • SDF–PWM: cmp-view-offers-disclaimer. Find Offers
    30

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    31

    Sat

  • SDF–PWM: cmp-view-offers-disclaimer. Find Offers
    01

    Sun

    NOV

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    02

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    03

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    04

    Wed

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    05

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  • SDF–PWM: cmp-view-offers-disclaimer. Find Offers
    06

    Fri

  • SDF–PWM: cmp-view-offers-disclaimer. Find Offers
    07

    Sat

  • SDF–PWM: cmp-view-offers-disclaimer. Find Offers
    08

    Sun

  • SDF–PWM, 11/09/2026: From $134
    09

    Mon

  • SDF–PWM, 11/10/2026: From $134
    10

    Tue

  • SDF–PWM: cmp-view-offers-disclaimer. Find Offers
    11

    Wed

  • SDF–PWM: cmp-view-offers-disclaimer. Find Offers
    12

    Thu

  • SDF–PWM, 11/13/2026: From $156
    13

    Fri

  • SDF–PWM, 11/14/2026: From $139
    14

    Sat

  • SDF–PWM, 11/15/2026: From $156
    15

    Sun

  • SDF–PWM, 11/16/2026: From $134
    16

    Mon

  • SDF–PWM, 11/17/2026: From $134
    17

    Tue

  • SDF–PWM, 11/18/2026: From $134
    18

    Wed

  • SDF–PWM, 11/19/2026: From $134
    19

    Thu

  • SDF–PWM, 11/20/2026: From $180
    20

    Fri

    • Range$134-$402

    *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:
    Louisville International Airport
    Arriving at:
    Portland International Jetport
    Distance:
    890 miles

    Questions we hear the most

    There are 74 weekly flights from Louisville to Portland, ME on Southwest Airlines.
    To find the lowest fares by day and time to fly Louisville to Portland, ME with Southwest, check out our Low Fare Calendar.
    You can rent a car at Portland International Jetport book yours with your flight.
    Yes! Flights from Louisville to Portland, ME—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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