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Find low faresSouthwest® flights from Louisville to Portland, ME from $160
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Low fares from Louisville to Portland, ME
$
Louisville (SDF)to
Portland, ME (PWM)
Depart: 05/11/2026
One-way
Basic
From
$160
Seen: 18 hrs ago
Louisville (SDF)to
Portland, ME (PWM)
Depart: 04/08/2026
One-way
Basic
From
$160
Seen: 12 hrs ago
Louisville (SDF)to
Portland, ME (PWM)
Depart: 03/16/2026
One-way
Basic
From
$190
Seen: 12 hrs ago
Louisville (SDF)to
Portland, ME (PWM)
Depart: 04/08/2026
One-way
Choice
From
$195
Seen: 12 hrs ago
Louisville (SDF)to
Portland, ME (PWM)
Depart: 05/11/2026
One-way
Choice
From
$195
Seen: 18 hrs ago
Louisville (SDF)to
Portland, ME (PWM)
Depart: 04/20/2026
One-way
Basic
From
$195
Seen: 14 hrs ago
Explore flights from Louisville to Portland, ME
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Flight Details
Departing from:
Louisville International Airport
Arriving at:
Portland International Jetport
Distance:
890 miles
Route Information
74† 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 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.