Southwest® flights from Portland, ME to Montrose, CO from $259

Promo Code

Low fares from Portland, ME to Montrose, CO

$

Portland, ME (PWM)to

Montrose, CO (MTJ)
Depart: 06/19/2026

One-way

Basic

From
$259
Seen: 9 hrs ago

Portland, ME (PWM)to

Montrose, CO (MTJ)
Depart: 06/19/2026

One-way

Choice

From
$304
Seen: 9 hrs ago

Portland, ME (PWM)to

Montrose, CO (MTJ)
Depart: 06/19/2026

One-way

Choice Preferred

From
$384
Seen: 9 hrs ago

Portland, ME (PWM)to

Montrose, CO (MTJ)
Depart: 04/06/2026

One-way

Choice

From
$401
Seen: 9 hrs ago

Portland, ME (PWM)to

Montrose, CO (MTJ)
Depart: 06/19/2026

One-way

Choice Extra

From
$444
Seen: 9 hrs ago

Portland, ME (PWM)to

Montrose, CO (MTJ)
Depart: 04/06/2026

One-way

Choice Preferred

From
$481
Seen: 9 hrs ago

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Explore flights from Portland, ME to Montrose, CO

Apr 2026
From$401*
Seen: 9 hrs ago
One Way/Basic
May 2026
No result for this month.
Jun 2026
From$259*
Seen: 9 hrs ago
One Way/Basic
$401
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    • Range$401

    *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:
    Portland International Jetport
    Arriving at:
    Montrose Regional Airport
    Distance:
    1977 miles

    Route Information

    7† 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 7 weekly flights from Portland, ME to Montrose, CO on Southwest Airlines.
    To find the lowest fares by day and time to fly Portland, ME to Montrose, CO with Southwest, check out our Low Fare Calendar.
    You can rent a car at Montrose Regional Airport book yours with your flight.
    Yes! Flights from Portland, ME to Montrose, CO—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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