Southwest® flights from Boston to Austin from $139

Promo Code

Low fares from Boston to Austin

$

Boston (BOS)to

Austin (AUS)
Depart: 11/17/2026

One-way

Basic

From
$139
Seen: 7 hrs ago

Boston (BOS)to

Austin (AUS)
Depart: 10/31/2026

One-way

Basic

From
$139
Seen: 19 hrs ago

Boston (BOS)to

Austin (AUS)
Depart: 11/04/2026

One-way

Basic

From
$139
Seen: 12 hrs ago

Boston (BOS)to

Austin (AUS)
Depart: 11/11/2026

One-way

Basic

From
$139
Seen: 11 hrs ago

Boston (BOS)to

Austin (AUS)
Depart: 10/21/2026

One-way

Basic

From
$149
Seen: 8 minutes ago

Boston (BOS)to

Austin (AUS)
Depart: 09/30/2026

One-way

Basic

From
$149
Seen: 8 hrs ago

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Explore flights from Boston to Austin

Sep 2026
From$149*
Seen: 8 hrs ago
One Way/Basic
Oct 2026
From$139*
Seen: 19 hrs ago
One Way/Basic
Nov 2026
From$139*
Seen: 12 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $149
cmp-daily-histogram-bars-legend-max-price-aria-label $444
Displaying fares for September-2026
  • BOS–AUS, 09/10/2026: From $444
    10

    Thu

    SEP

  • BOS–AUS, 09/11/2026: From $444
    11

    Fri

  • BOS–AUS, 09/12/2026: From $384
    12

    Sat

  • BOS–AUS, 09/13/2026: From $394
    13

    Sun

  • BOS–AUS, 09/14/2026: From $389
    14

    Mon

  • BOS–AUS, 09/15/2026: From $384
    15

    Tue

  • BOS–AUS, 09/16/2026: From $284
    16

    Wed

  • BOS–AUS, 09/17/2026: From $294
    17

    Thu

  • BOS–AUS, 09/18/2026: From $294
    18

    Fri

  • BOS–AUS: cmp-view-offers-disclaimer. Find Offers
    19

    Sat

  • BOS–AUS, 09/20/2026: From $294
    20

    Sun

  • BOS–AUS, 09/21/2026: From $294
    21

    Mon

  • BOS–AUS, 09/22/2026: From $284
    22

    Tue

  • BOS–AUS: cmp-view-offers-disclaimer. Find Offers
    23

    Wed

  • BOS–AUS, 09/24/2026: From $219
    24

    Thu

  • BOS–AUS, 09/25/2026: From $221
    25

    Fri

  • BOS–AUS, 09/26/2026: From $169
    26

    Sat

  • BOS–AUS, 09/27/2026: From $434
    27

    Sun

  • BOS–AUS, 09/28/2026: From $429
    28

    Mon

  • BOS–AUS, 09/29/2026: From $169
    29

    Tue

  • BOS–AUS, 09/30/2026: From $149
    30

    Wed

  • BOS–AUS, 10/01/2026: From $179
    01

    Thu

    OCT

  • BOS–AUS, 10/02/2026: From $191
    02

    Fri

  • BOS–AUS: cmp-view-offers-disclaimer. Find Offers
    03

    Sat

  • BOS–AUS: cmp-view-offers-disclaimer. Find Offers
    04

    Sun

  • BOS–AUS, 10/05/2026: From $229
    05

    Mon

  • BOS–AUS, 10/06/2026: From $149
    06

    Tue

  • BOS–AUS, 10/07/2026: From $149
    07

    Wed

  • BOS–AUS, 10/08/2026: From $258
    08

    Thu

  • BOS–AUS, 10/09/2026: From $317
    09

    Fri

    • Range$149-$444

    *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:
    Austin-Bergstrom International Airport
    Average flight time:
    4 hours 28 minutes
    Distance:
    1698 miles

    Route Information

    151† Weekly flights
    • 1‡ Nonstop flight per day Monday through Friday
    • 1‡ Nonstop flight on Saturday
    • 1‡ Nonstop flight 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 Boston to Austin is 4 hours 28 minutes.
    There are 151 weekly flights from Boston to Austin on Southwest Airlines.
    Yes, Southwest flies nonstop from Boston to Austin once per day from Monday through Friday.
    Yes, Southwest flies nonstop from Boston to Austin once per day on Saturdays and Sundays.
    To find the lowest fares by day and time to fly Boston to Austin with Southwest, check out our Low Fare Calendar.
    You can rent a car at Austin-Bergstrom International Airport book yours with your flight.
    Yes! Flights from Boston to Austin—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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