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Find low faresSouthwest® flights from Denver to Portland, ME from $145
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Low fares from Denver to Portland, ME
$
Denver (DEN)to
Portland, ME (PWM)
Depart: 03/25/2026
One-way
Basic
From
$145
Seen: 2 hrs ago
Denver (DEN)to
Portland, ME (PWM)
Depart: 03/11/2026
One-way
Basic
From
$150
Seen: 11 hrs ago
Denver (DEN)to
Portland, ME (PWM)
Depart: 04/20/2026
One-way
Basic
From
$170
Seen: 1 minute ago
Denver (DEN)to
Portland, ME (PWM)
Depart: 02/26/2026
One-way
Basic
From
$172
Seen: 15 hrs ago
Denver (DEN)to
Portland, ME (PWM)
Depart: 04/18/2026
One-way
Basic
From
$175
Seen: 1 minute ago
Denver (DEN)to
Portland, ME (PWM)
Depart: 02/04/2026
One-way
Basic
From
$177
Seen: 9 hrs ago
Explore flights from Denver to Portland, ME
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Flight Details
Departing from:
Denver International Airport
Arriving at:
Portland International Jetport
Distance:
1782 miles
Route Information
79† 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 79 weekly flights from Denver to Portland, ME on Southwest Airlines.
To find the lowest fares by day and time to fly Denver 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 Denver 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.