Southwest® flights from Boston to Kansas City from $142

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Low fares from Boston to Kansas City

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Boston (BOS)to

Kansas City (MCI)
Depart: 12/13/2026

One-way

Basic

From
$142
Seen: 7 hrs ago

Boston (BOS)to

Kansas City (MCI)
Depart: 11/12/2026

One-way

Basic

From
$142
Seen: 1 hour ago

Boston (BOS)to

Kansas City (MCI)
Depart: 12/11/2026

One-way

Basic

From
$142
Seen: 4 hrs ago

Boston (BOS)to

Kansas City (MCI)
Depart: 01/14/2027

One-way

Basic

From
$152
Seen: 23 hrs ago

Boston (BOS)to

Kansas City (MCI)
Depart: 12/01/2026

One-way

Basic

From
$152
Seen: 15 hrs ago

Boston (BOS)to

Kansas City (MCI)
Depart: 12/04/2026

One-way

Basic

From
$152
Seen: 17 hrs ago

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Explore flights from Boston to Kansas City

Oct 2026
From$440*
Seen: 21 hrs ago
One Way/Basic
Nov 2026
From$142*
Seen: 1 hour ago
One Way/Basic
Dec 2026
From$142*
Seen: 4 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $142
cmp-daily-histogram-bars-legend-max-price-aria-label $500
Displaying fares for October-2026
  • BOS–MCI, 10/24/2026: From $490
    24

    Sat

    OCT

  • BOS–MCI: cmp-view-offers-disclaimer. Find Offers
    25

    Sun

  • BOS–MCI, 10/26/2026: From $500
    26

    Mon

  • BOS–MCI, 10/27/2026: From $490
    27

    Tue

  • BOS–MCI, 10/28/2026: From $490
    28

    Wed

  • BOS–MCI, 10/29/2026: From $490
    29

    Thu

  • BOS–MCI, 10/30/2026: From $440
    30

    Fri

  • BOS–MCI, 10/31/2026: From $450
    31

    Sat

  • BOS–MCI, 11/01/2026: From $450
    01

    Sun

    NOV

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

    Mon

  • BOS–MCI, 11/03/2026: From $450
    03

    Tue

  • BOS–MCI, 11/04/2026: From $450
    04

    Wed

  • BOS–MCI, 11/05/2026: From $440
    05

    Thu

  • BOS–MCI, 11/06/2026: From $316
    06

    Fri

  • BOS–MCI, 11/07/2026: From $326
    07

    Sat

  • BOS–MCI, 11/08/2026: From $316
    08

    Sun

  • BOS–MCI, 11/09/2026: From $152
    09

    Mon

  • BOS–MCI, 11/10/2026: From $152
    10

    Tue

  • BOS–MCI, 11/11/2026: From $152
    11

    Wed

  • BOS–MCI, 11/12/2026: From $142
    12

    Thu

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

    Fri

  • BOS–MCI: cmp-view-offers-disclaimer. Find Offers
    14

    Sat

  • BOS–MCI: cmp-view-offers-disclaimer. Find Offers
    15

    Sun

  • BOS–MCI, 11/16/2026: From $157
    16

    Mon

  • BOS–MCI: cmp-view-offers-disclaimer. Find Offers
    17

    Tue

  • BOS–MCI: cmp-view-offers-disclaimer. Find Offers
    18

    Wed

  • BOS–MCI, 11/19/2026: From $152
    19

    Thu

  • BOS–MCI, 11/20/2026: From $228
    20

    Fri

  • BOS–MCI, 11/21/2026: From $152
    21

    Sat

  • BOS–MCI, 11/22/2026: From $152
    22

    Sun

  • BOS–MCI, 11/23/2026: From $152
    23

    Mon

    • Range$142-$500

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

    Questions we hear the most

    There are 150 weekly flights from Boston to Kansas City on Southwest Airlines.
    To find the lowest fares by day and time to fly Boston to Kansas City with Southwest, check out our Low Fare Calendar.
    You can rent a car at Kansas City International Airport book yours with your flight.
    Yes! Flights from Boston to Kansas City—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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