Southwest® flights from Raleigh/Durham to San Antonio from $175

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Low fares from Raleigh/Durham to San Antonio

$

Raleigh/Durham (RDU)to

San Antonio (SAT)
Depart: 10/06/2026

One-way

Basic

From
$175
Seen: 7 hrs ago

Raleigh/Durham (RDU)to

San Antonio (SAT)
Depart: 10/28/2026

One-way

Basic

From
$175
Seen: 22 hrs ago

Raleigh/Durham (RDU)to

San Antonio (SAT)
Depart: 11/03/2026

One-way

Basic

From
$175
Seen: 11 hrs ago

Raleigh/Durham (RDU)to

San Antonio (SAT)
Depart: 11/14/2026

One-way

Basic

From
$175
Seen: 14 hrs ago

Raleigh/Durham (RDU)to

San Antonio (SAT)
Depart: 10/07/2026

One-way

Basic

From
$175
Seen: 15 hrs ago

Raleigh/Durham (RDU)to

San Antonio (SAT)
Depart: 12/03/2026

One-way

Basic

From
$175
Seen: 1 hour ago

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Explore flights from Raleigh/Durham to San Antonio

Sep 2026
From$257*
Seen: 8 hrs ago
One Way/Basic
Oct 2026
From$175*
Seen: 22 hrs ago
One Way/Basic
Nov 2026
From$175*
Seen: 11 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $175
cmp-daily-histogram-bars-legend-max-price-aria-label $529
Displaying fares for September-2026
  • RDU–SAT, 09/12/2026: From $529
    12

    Sat

    SEP

  • RDU–SAT: cmp-view-offers-disclaimer. Find Offers
    13

    Sun

  • RDU–SAT: cmp-view-offers-disclaimer. Find Offers
    14

    Mon

  • RDU–SAT, 09/15/2026: From $529
    15

    Tue

  • RDU–SAT, 09/16/2026: From $529
    16

    Wed

  • RDU–SAT, 09/17/2026: From $529
    17

    Thu

  • RDU–SAT, 09/18/2026: From $344
    18

    Fri

  • RDU–SAT: cmp-view-offers-disclaimer. Find Offers
    19

    Sat

  • RDU–SAT: cmp-view-offers-disclaimer. Find Offers
    20

    Sun

  • RDU–SAT, 09/21/2026: From $344
    21

    Mon

  • RDU–SAT, 09/22/2026: From $344
    22

    Tue

  • RDU–SAT: cmp-view-offers-disclaimer. Find Offers
    23

    Wed

  • RDU–SAT: cmp-view-offers-disclaimer. Find Offers
    24

    Thu

  • RDU–SAT, 09/25/2026: From $257
    25

    Fri

  • RDU–SAT, 09/26/2026: From $257
    26

    Sat

  • RDU–SAT: cmp-view-offers-disclaimer. Find Offers
    27

    Sun

  • RDU–SAT: cmp-view-offers-disclaimer. Find Offers
    28

    Mon

  • RDU–SAT, 09/29/2026: From $257
    29

    Tue

  • RDU–SAT, 09/30/2026: From $257
    30

    Wed

  • RDU–SAT, 10/01/2026: From $257
    01

    Thu

    OCT

  • RDU–SAT, 10/02/2026: From $175
    02

    Fri

  • RDU–SAT, 10/03/2026: From $175
    03

    Sat

  • RDU–SAT: cmp-view-offers-disclaimer. Find Offers
    04

    Sun

  • RDU–SAT: cmp-view-offers-disclaimer. Find Offers
    05

    Mon

  • RDU–SAT, 10/06/2026: From $175
    06

    Tue

  • RDU–SAT, 10/07/2026: From $175
    07

    Wed

  • RDU–SAT, 10/08/2026: From $239
    08

    Thu

  • RDU–SAT: cmp-view-offers-disclaimer. Find Offers
    09

    Fri

  • RDU–SAT: cmp-view-offers-disclaimer. Find Offers
    10

    Sat

  • RDU–SAT: cmp-view-offers-disclaimer. Find Offers
    11

    Sun

    • Range$175-$529

    *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:
    Raleigh/Durham Airport
    Arriving at:
    San Antonio International Airport
    Distance:
    1224 miles

    Route Information

    152† 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 152 weekly flights from Raleigh/Durham to San Antonio on Southwest Airlines.
    To find the lowest fares by day and time to fly Raleigh/Durham to San Antonio with Southwest, check out our Low Fare Calendar.
    You can rent a car at San Antonio International Airport book yours with your flight.
    Yes! Flights from Raleigh/Durham to San Antonio—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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