Southwest® flights from Baltimore/Washington to Boston from $59

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Low fares from Baltimore/Washington to Boston

$

Baltimore/Washington (BWI)to

Boston (BOS)
Depart: 09/16/2026

One-way

Basic

From
$59
Seen: 14 hrs ago

Baltimore/Washington (BWI)to

Boston (BOS)
Depart: 11/18/2026

One-way

Basic

From
$59
Seen: 14 hrs ago

Baltimore/Washington (BWI)to

Boston (BOS)
Depart: 11/14/2026

One-way

Basic

From
$59
Seen: 23 hrs ago

Baltimore/Washington (BWI)to

Boston (BOS)
Depart: 09/24/2026

One-way

Basic

From
$59
Seen: 9 hrs ago

Baltimore/Washington (BWI)to

Boston (BOS)
Depart: 10/05/2026

One-way

Basic

From
$59
Seen: 9 hrs ago

Baltimore/Washington (BWI)to

Boston (BOS)
Depart: 11/17/2026

One-way

Basic

From
$59
Seen: 8 hrs ago

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Explore flights from Baltimore/Washington to Boston

Aug 2026
From$268*
Seen: 19 hrs ago
One Way/Basic
Sep 2026
From$59*
Seen: 3 hrs ago
One Way/Basic
Oct 2026
From$59*
Seen: 8 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $59
cmp-daily-histogram-bars-legend-max-price-aria-label $334
Displaying fares for August-2026
  • BWI–BOS, 08/23/2026: From $334
    23

    Sun

    AUG

  • BWI–BOS, 08/24/2026: From $334
    24

    Mon

  • BWI–BOS, 08/25/2026: From $334
    25

    Tue

  • BWI–BOS, 08/26/2026: From $334
    26

    Wed

  • BWI–BOS, 08/27/2026: From $334
    27

    Thu

  • BWI–BOS, 08/28/2026: From $334
    28

    Fri

  • BWI–BOS, 08/29/2026: From $334
    29

    Sat

  • BWI–BOS, 08/30/2026: From $268
    30

    Sun

  • BWI–BOS, 08/31/2026: From $268
    31

    Mon

  • BWI–BOS, 09/01/2026: From $268
    01

    Tue

    SEP

  • BWI–BOS, 09/02/2026: From $268
    02

    Wed

  • BWI–BOS, 09/03/2026: From $268
    03

    Thu

  • BWI–BOS, 09/04/2026: From $268
    04

    Fri

  • BWI–BOS, 09/05/2026: From $268
    05

    Sat

  • BWI–BOS, 09/06/2026: From $184
    06

    Sun

  • BWI–BOS, 09/07/2026: From $184
    07

    Mon

  • BWI–BOS, 09/08/2026: From $184
    08

    Tue

  • BWI–BOS, 09/09/2026: From $184
    09

    Wed

  • BWI–BOS, 09/10/2026: From $184
    10

    Thu

  • BWI–BOS, 09/11/2026: From $184
    11

    Fri

  • BWI–BOS, 09/12/2026: From $184
    12

    Sat

  • BWI–BOS, 09/13/2026: From $163
    13

    Sun

  • BWI–BOS, 09/14/2026: From $59
    14

    Mon

  • BWI–BOS, 09/15/2026: From $59
    15

    Tue

  • BWI–BOS, 09/16/2026: From $59
    16

    Wed

  • BWI–BOS, 09/17/2026: From $99
    17

    Thu

  • BWI–BOS, 09/18/2026: From $178
    18

    Fri

  • BWI–BOS, 09/19/2026: From $76
    19

    Sat

  • BWI–BOS, 09/20/2026: From $142
    20

    Sun

  • BWI–BOS, 09/21/2026: From $59
    21

    Mon

  • BWI–BOS, 09/22/2026: From $59
    22

    Tue

    • Range$59-$334

    *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:
    Logan International Airport
    Average flight time:
    1 hour 30 minutes
    Distance:
    369 miles

    Route Information

    44† Weekly flights
    • 7‡ Nonstop flights per day Monday through Friday
    • 6‡ Nonstop flights on Saturday
    • 8‡ Nonstop flights on Sunday

    † 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

    The average flight time from Baltimore/Washington to Boston is 1 hour 30 minutes.
    There are 44 weekly flights from Baltimore/Washington to Boston on Southwest Airlines.
    Yes, Southwest flies nonstop from Baltimore/Washington to Boston 7 times per day from Monday through Friday.
    Yes, Southwest flies nonstop from Baltimore/Washington to Boston 6 times per day on Saturdays and 8 times per day on Sundays.
    To find the lowest fares by day and time to fly Baltimore/Washington to Boston with Southwest, check out our Low Fare Calendar.
    You can rent a car at Logan International Airport book yours with your flight.
    Yes! Flights from Baltimore/Washington to Boston—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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