Southwest® flights from Louisville to Portland, ME from $189

Promo Code

Low fares from Louisville to Portland, ME

$

Louisville (SDF)to

Portland, ME (PWM)
Depart: 12/09/2026

One-way

Basic

From
$189
Seen: 17 hrs ago

Louisville (SDF)to

Portland, ME (PWM)
Depart: 02/18/2027

One-way

Basic

From
$204
Seen: 17 hrs ago

Louisville (SDF)to

Portland, ME (PWM)
Depart: 12/09/2026

One-way

Choice

From
$229
Seen: 17 hrs ago

Louisville (SDF)to

Portland, ME (PWM)
Depart: 12/01/2026

One-way

Basic

From
$229
Seen: 17 hrs ago

Louisville (SDF)to

Portland, ME (PWM)
Depart: 12/06/2026

One-way

Basic

From
$234
Seen: 18 hrs ago

Louisville (SDF)to

Portland, ME (PWM)
Depart: 02/18/2027

One-way

Choice

From
$244
Seen: 17 hrs ago

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Explore flights from Louisville to Portland, ME

Nov 2026
From$274*
Seen: 20 hrs ago
One Way/Basic
Dec 2026
From$189*
Seen: 17 hrs ago
One Way/Basic
Jan 2027
No result for this month.
cmp-daily-histogram-bars-legend-min-price-aria-label $189
cmp-daily-histogram-bars-legend-max-price-aria-label $450
Displaying fares for November-2026
  • SDF–PWM: cmp-view-offers-disclaimer. Find Offers
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  • SDF–PWM, 11/15/2026: From $366
    15

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  • SDF–PWM, 11/16/2026: From $366
    16

    Mon

  • SDF–PWM, 11/17/2026: From $320
    17

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  • SDF–PWM, 11/18/2026: From $320
    18

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    23

    Mon

  • SDF–PWM, 11/24/2026: From $274
    24

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  • SDF–PWM, 11/25/2026: From $274
    25

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    26

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    27

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    28

    Sat

  • SDF–PWM, 11/29/2026: From $450
    29

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

    Mon

  • SDF–PWM, 12/01/2026: From $229
    01

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    DEC

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    02

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    04

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    05

    Sat

  • SDF–PWM, 12/06/2026: From $234
    06

    Sun

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    07

    Mon

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    08

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  • SDF–PWM, 12/09/2026: From $189
    09

    Wed

    • Range$189-$450

    *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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