Southwest® flights from Baltimore/Washington to Portland, ME from $150

Promo Code

Low fares from Baltimore/Washington to Portland, ME

$

Baltimore/Washington (BWI)to

Portland, ME (PWM)
Depart: 12/30/2026

One-way

Basic

From
$150
Seen: 4 hrs ago

Baltimore/Washington (BWI)to

Portland, ME (PWM)
Depart: 02/10/2027

One-way

Basic

From
$150
Seen: 16 hrs ago

Baltimore/Washington (BWI)to

Portland, ME (PWM)
Depart: 12/12/2026

One-way

Basic

From
$150
Seen: 15 hrs ago

Baltimore/Washington (BWI)to

Portland, ME (PWM)
Depart: 12/02/2026

One-way

Basic

From
$150
Seen: 15 hrs ago

Baltimore/Washington (BWI)to

Portland, ME (PWM)
Depart: 02/17/2027

One-way

Basic

From
$150
Seen: 12 hrs ago

Baltimore/Washington (BWI)to

Portland, ME (PWM)
Depart: 12/08/2026

One-way

Basic

From
$150
Seen: 23 hrs ago

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Explore flights from Baltimore/Washington to Portland, ME

Nov 2026
From$285*
Seen: 7 hrs ago
One Way/Basic
Dec 2026
From$150*
Seen: 23 hrs ago
One Way/Basic
Jan 2027
From$150*
Seen: 9 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $150
cmp-daily-histogram-bars-legend-max-price-aria-label $438
Displaying fares for November-2026
  • BWI–PWM, 11/09/2026: From $438
    09

    Mon

    NOV

  • BWI–PWM, 11/10/2026: From $438
    10

    Tue

  • BWI–PWM, 11/11/2026: From $438
    11

    Wed

  • BWI–PWM, 11/12/2026: From $438
    12

    Thu

  • BWI–PWM, 11/13/2026: From $438
    13

    Fri

  • BWI–PWM, 11/14/2026: From $438
    14

    Sat

  • BWI–PWM, 11/15/2026: From $377
    15

    Sun

  • BWI–PWM: cmp-view-offers-disclaimer. Find Offers
    16

    Mon

  • BWI–PWM: cmp-view-offers-disclaimer. Find Offers
    17

    Tue

  • BWI–PWM, 11/18/2026: From $377
    18

    Wed

  • BWI–PWM, 11/19/2026: From $377
    19

    Thu

  • BWI–PWM, 11/20/2026: From $377
    20

    Fri

  • BWI–PWM, 11/21/2026: From $377
    21

    Sat

  • BWI–PWM, 11/22/2026: From $285
    22

    Sun

  • BWI–PWM, 11/23/2026: From $285
    23

    Mon

  • BWI–PWM, 11/24/2026: From $315
    24

    Tue

  • BWI–PWM, 11/25/2026: From $285
    25

    Wed

  • BWI–PWM, 11/26/2026: From $285
    26

    Thu

  • BWI–PWM, 11/27/2026: From $285
    27

    Fri

  • BWI–PWM, 11/28/2026: From $349
    28

    Sat

  • BWI–PWM, 11/29/2026: From $294
    29

    Sun

  • BWI–PWM, 11/30/2026: From $315
    30

    Mon

  • BWI–PWM: cmp-view-offers-disclaimer. Find Offers
    01

    Tue

    DEC

  • BWI–PWM, 12/02/2026: From $150
    02

    Wed

  • BWI–PWM: cmp-view-offers-disclaimer. Find Offers
    03

    Thu

  • BWI–PWM, 12/04/2026: From $175
    04

    Fri

  • BWI–PWM, 12/05/2026: From $165
    05

    Sat

  • BWI–PWM, 12/06/2026: From $242
    06

    Sun

  • BWI–PWM, 12/07/2026: From $165
    07

    Mon

  • BWI–PWM, 12/08/2026: From $150
    08

    Tue

    • Range$150-$438

    *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:
    Balt./Wash. International Airport
    Arriving at:
    Portland International Jetport
    Average flight time:
    1 hour 30 minutes
    Distance:
    452 miles

    Questions we hear the most

    The average flight time from Baltimore/Washington to Portland, ME is 1 hour 30 minutes.
    There are 24 weekly flights from Baltimore/Washington to Portland, ME on Southwest Airlines.
    Yes, Southwest flies nonstop from Baltimore/Washington to Portland, ME 4 times per day from Monday through Friday.
    Yes, Southwest flies nonstop from Baltimore/Washington to Portland, ME 4 times per day on Saturdays and Sundays.
    To find the lowest fares by day and time to fly Baltimore/Washington 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 Baltimore/Washington 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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