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Southwest® flights from Seattle/Tacoma to Portland, ME from $210

Promo Code

Low fares from Seattle/Tacoma to Portland, ME

$

Seattle/Tacoma (SEA)to

Portland, ME (PWM)
Depart: 06/09/2026

One-way

Basic

From
$210
Seen: 20 minutes ago

Seattle/Tacoma (SEA)to

Portland, ME (PWM)
Depart: 08/03/2026

One-way

Basic

From
$245
Seen: 11 hrs ago

Seattle/Tacoma (SEA)to

Portland, ME (PWM)
Depart: 06/09/2026

One-way

Choice

From
$255
Seen: 20 minutes ago

Seattle/Tacoma (SEA)to

Portland, ME (PWM)
Depart: 08/03/2026

One-way

Choice

From
$290
Seen: 11 hrs ago

Seattle/Tacoma (SEA)to

Portland, ME (PWM)
Depart: 06/11/2026

One-way

Basic

From
$300
Seen: 8 hrs ago

Seattle/Tacoma (SEA)to

Portland, ME (PWM)
Depart: 08/02/2026

One-way

Basic

From
$331
Seen: 10 hrs ago

Looking for more low-fare flights?

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Explore flights from Seattle/Tacoma to Portland, ME

Try alternate month or interact with individual days below in order to find offers.
May 2026
No result for this month.
Jun 2026
From$210*
Seen: 20 minutes ago
One Way/Basic
Jul 2026
From$365*
Seen: 9 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $210
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    • Range$210-$300

    *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:
    Seattle/Tacoma International Airport
    Arriving at:
    Portland International Jetport
    Distance:
    2490 miles

    Route Information

    37† 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 37 weekly flights from Seattle/Tacoma to Portland, ME on Southwest Airlines.
    To find the lowest fares by day and time to fly Seattle/Tacoma 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 Seattle/Tacoma 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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