Southwest® flights from Kansas City to Boston from $129

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Low fares from Kansas City to Boston

$

Kansas City (MCI)to

Boston (BOS)
Depart: 11/12/2026

One-way

Basic

From
$129
Seen: 13 hrs ago

Kansas City (MCI)to

Boston (BOS)
Depart: 11/05/2026

One-way

Basic

From
$129
Seen: 14 hrs ago

Kansas City (MCI)to

Boston (BOS)
Depart: 10/27/2026

One-way

Basic

From
$129
Seen: 8 hrs ago

Kansas City (MCI)to

Boston (BOS)
Depart: 10/29/2026

One-way

Basic

From
$129
Seen: 19 hrs ago

Kansas City (MCI)to

Boston (BOS)
Depart: 10/20/2026

One-way

Basic

From
$129
Seen: 15 hrs ago

Kansas City (MCI)to

Boston (BOS)
Depart: 10/24/2026

One-way

Basic

From
$129
Seen: 9 hrs ago

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Explore flights from Kansas City to Boston

Aug 2026
From$405*
Seen: 5 hrs ago
One Way/Basic
Sep 2026
From$139*
Seen: 15 hrs ago
One Way/Basic
Oct 2026
From$129*
Seen: 9 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $139
cmp-daily-histogram-bars-legend-max-price-aria-label $460
Displaying fares for August-2026
  • MCI–BOS: cmp-view-offers-disclaimer. Find Offers
    21

    Fri

    AUG

  • MCI–BOS, 08/22/2026: From $455
    22

    Sat

  • MCI–BOS, 08/23/2026: From $460
    23

    Sun

  • MCI–BOS, 08/24/2026: From $460
    24

    Mon

  • MCI–BOS, 08/25/2026: From $460
    25

    Tue

  • MCI–BOS: cmp-view-offers-disclaimer. Find Offers
    26

    Wed

  • MCI–BOS, 08/27/2026: From $410
    27

    Thu

  • MCI–BOS: cmp-view-offers-disclaimer. Find Offers
    28

    Fri

  • MCI–BOS, 08/29/2026: From $405
    29

    Sat

  • MCI–BOS, 08/30/2026: From $405
    30

    Sun

  • MCI–BOS, 08/31/2026: From $410
    31

    Mon

  • MCI–BOS, 09/01/2026: From $410
    01

    Tue

    SEP

  • MCI–BOS, 09/02/2026: From $410
    02

    Wed

  • MCI–BOS, 09/03/2026: From $330
    03

    Thu

  • MCI–BOS, 09/04/2026: From $330
    04

    Fri

  • MCI–BOS, 09/05/2026: From $296
    05

    Sat

  • MCI–BOS, 09/06/2026: From $296
    06

    Sun

  • MCI–BOS, 09/07/2026: From $301
    07

    Mon

  • MCI–BOS: cmp-view-offers-disclaimer. Find Offers
    08

    Tue

  • MCI–BOS: cmp-view-offers-disclaimer. Find Offers
    09

    Wed

  • MCI–BOS, 09/10/2026: From $194
    10

    Thu

  • MCI–BOS, 09/11/2026: From $163
    11

    Fri

  • MCI–BOS, 09/12/2026: From $139
    12

    Sat

  • MCI–BOS, 09/13/2026: From $278
    13

    Sun

  • MCI–BOS, 09/14/2026: From $139
    14

    Mon

  • MCI–BOS, 09/15/2026: From $139
    15

    Tue

  • MCI–BOS, 09/16/2026: From $139
    16

    Wed

  • MCI–BOS, 09/17/2026: From $249
    17

    Thu

  • MCI–BOS, 09/18/2026: From $261
    18

    Fri

  • MCI–BOS, 09/19/2026: From $194
    19

    Sat

  • MCI–BOS, 09/20/2026: From $261
    20

    Sun

    • Range$139-$460

    *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:
    Kansas City International Airport
    Arriving at:
    Logan International Airport
    Distance:
    1256 miles

    Route Information

    151† 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 151 weekly flights from Kansas City to Boston on Southwest Airlines.
    To find the lowest fares by day and time to fly Kansas City 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 Kansas City 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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