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Find low faresSouthwest® flights from Charleston to Portland, ME from $170
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1 Passenger
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Low fares from Charleston to Portland, ME
$
Charleston (CHS)to
Portland, ME (PWM)
Depart: 02/14/2026
One-way
Basic
From
$170
Seen: 18 hrs ago
Charleston (CHS)to
Portland, ME (PWM)
Depart: 04/13/2026
One-way
Basic
From
$171
Seen: 6 hrs ago
Charleston (CHS)to
Portland, ME (PWM)
Depart: 04/01/2026
One-way
Basic
From
$171
Seen: 10 hrs ago
Charleston (CHS)to
Portland, ME (PWM)
Depart: 03/12/2026
One-way
Basic
From
$194
Seen: 12 hrs ago
Charleston (CHS)to
Portland, ME (PWM)
Depart: 03/20/2026
One-way
Basic
From
$194
Seen: 12 hrs ago
Charleston (CHS)to
Portland, ME (PWM)
Depart: 03/23/2026
One-way
Basic
From
$194
Seen: 12 hrs ago
Explore flights from Charleston to Portland, ME
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Flight Details
Departing from:
Charleston International Airport
Arriving at:
Portland International Jetport
Distance:
909 miles
Route Information
80† 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 80 weekly flights from Charleston to Portland, ME on Southwest Airlines.
To find the lowest fares by day and time to fly Charleston 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 Charleston 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.