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

Promo Code

Low fares from Baltimore/Washington to Boston

$

Baltimore/Washington (BWI)to

Boston (BOS)
Depart: 10/24/2026

One-way

Basic

From
$59
Seen: 22 hrs ago

Baltimore/Washington (BWI)to

Boston (BOS)
Depart: 10/21/2026

One-way

Basic

From
$59
Seen: 22 hrs ago

Baltimore/Washington (BWI)to

Boston (BOS)
Depart: 11/12/2026

One-way

Basic

From
$59
Seen: 21 hrs ago

Baltimore/Washington (BWI)to

Boston (BOS)
Depart: 11/05/2026

One-way

Basic

From
$59
Seen: 17 hrs ago

Baltimore/Washington (BWI)to

Boston (BOS)
Depart: 12/03/2026

One-way

Basic

From
$59
Seen: 10 hrs ago

Baltimore/Washington (BWI)to

Boston (BOS)
Depart: 11/04/2026

One-way

Basic

From
$59
Seen: 18 hrs ago

Looking for more low-fare flights?

Check out the Low Fare Calendar to find a fare that works for you. Just choose the month you want to depart and return, and we’ll show you the best fares available.

Find low fares

Explore flights from Baltimore/Washington to Boston

Sep 2026
From$334*
Seen: 1 hour ago
One Way/Basic
Oct 2026
From$59*
Seen: 5 hrs ago
One Way/Basic
Nov 2026
From$59*
Seen: 21 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 September-2026
  • BWI–BOS: cmp-view-offers-disclaimer. Find Offers
    29

    Tue

    SEP

  • BWI–BOS, 09/30/2026: From $334
    30

    Wed

  • BWI–BOS, 10/01/2026: From $334
    01

    Thu

    OCT

  • BWI–BOS: cmp-view-offers-disclaimer. Find Offers
    02

    Fri

  • BWI–BOS, 10/03/2026: From $334
    03

    Sat

  • BWI–BOS, 10/04/2026: From $261
    04

    Sun

  • BWI–BOS, 10/05/2026: From $261
    05

    Mon

  • BWI–BOS, 10/06/2026: From $261
    06

    Tue

  • BWI–BOS, 10/07/2026: From $261
    07

    Wed

  • BWI–BOS, 10/08/2026: From $268
    08

    Thu

  • BWI–BOS, 10/09/2026: From $289
    09

    Fri

  • BWI–BOS, 10/10/2026: From $268
    10

    Sat

  • BWI–BOS, 10/11/2026: From $268
    11

    Sun

  • BWI–BOS, 10/12/2026: From $204
    12

    Mon

  • BWI–BOS: cmp-view-offers-disclaimer. Find Offers
    13

    Tue

  • BWI–BOS, 10/14/2026: From $239
    14

    Wed

  • BWI–BOS, 10/15/2026: From $204
    15

    Thu

  • BWI–BOS, 10/16/2026: From $204
    16

    Fri

  • BWI–BOS, 10/17/2026: From $204
    17

    Sat

  • BWI–BOS, 10/18/2026: From $204
    18

    Sun

  • BWI–BOS, 10/19/2026: From $59
    19

    Mon

  • BWI–BOS, 10/20/2026: From $59
    20

    Tue

  • BWI–BOS, 10/21/2026: From $59
    21

    Wed

  • BWI–BOS, 10/22/2026: From $129
    22

    Thu

  • BWI–BOS, 10/23/2026: From $86
    23

    Fri

  • BWI–BOS, 10/24/2026: From $59
    24

    Sat

  • BWI–BOS, 10/25/2026: From $162
    25

    Sun

  • BWI–BOS, 10/26/2026: From $59
    26

    Mon

  • BWI–BOS, 10/27/2026: From $59
    27

    Tue

  • BWI–BOS, 10/28/2026: From $59
    28

    Wed

    • 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.

    Explore Flights from Other Popular Origins

    Popular Flights from Baltimore/Washington