Southwest® flights from Portland, ME to Las Vegas from $126

Promo Code

Low fares from Portland, ME to Las Vegas

$

Portland, ME (PWM)to

Las Vegas (LAS)
Depart: 04/13/2026

One-way

Basic

From
$126
Seen: 16 hrs ago

Portland, ME (PWM)to

Las Vegas (LAS)
Depart: 04/06/2026

One-way

Basic

From
$126
Seen: 17 hrs ago

Portland, ME (PWM)to

Las Vegas (LAS)
Depart: 05/11/2026

One-way

Basic

From
$126
Seen: 21 hrs ago

Portland, ME (PWM)to

Las Vegas (LAS)
Depart: 04/28/2026

One-way

Basic

From
$126
Seen: 1 hour ago

Portland, ME (PWM)to

Las Vegas (LAS)
Depart: 05/24/2026

One-way

Basic

From
$126
Seen: 26 minutes ago

Portland, ME (PWM)to

Las Vegas (LAS)
Depart: 04/12/2026

One-way

Basic

From
$131
Seen: 19 hrs ago

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Find low fares

Explore flights from Portland, ME to Las Vegas

Mar 2026
From$186*
Seen: 7 hrs ago
One Way/Basic
Apr 2026
From$126*
Seen: 16 hrs ago
One Way/Basic
May 2026
From$126*
Seen: 26 minutes ago
One Way/Basic
$126
$306
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    • Range$126-$306

    *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:
    McCarran International Airport
    Distance:
    2410 miles

    Route Information

    88† 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 88 weekly flights from Portland, ME to Las Vegas on Southwest Airlines.
    To find the lowest fares by day and time to fly Portland, ME to Las Vegas with Southwest, check out our Low Fare Calendar.
    You can rent a car at McCarran International Airport book yours with your flight.
    Yes! Flights from Portland, ME to Las Vegas—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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