Flights from Chicago, IL to San Antonio, TX

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Best Deals on Flights From Chicago, IL (ORD) to San Antonio, TX (SAT)

Sep 2026
from$187*
Last seen: 9 hours ago
One-way/Economy
Oct 2026
from$118*
Last seen: 7 hours ago
One-way/Economy
Nov 2026
from$128*
Last seen: 12 hours ago
One-way/Economy
cmp-daily-histogram-bars-legend-min-price-aria-label $128
Displaying fares for September-2026
  • ORD–SAT: cmp-view-offers-disclaimer. Find Offers
    23

    Wed

    SEP

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

    Thu

  • ORD–SAT, Sep 25, 2026: from $220
    25

    Fri

  • ORD–SAT, Sep 26, 2026: from $187
    26

    Sat

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

    Sun

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

    Mon

  • ORD–SAT: cmp-view-offers-disclaimer. Find Offers
    29

    Tue

  • ORD–SAT: cmp-view-offers-disclaimer. Find Offers
    30

    Wed

  • ORD–SAT, Oct 1, 2026: from $220
    01

    Thu

    OCT

  • ORD–SAT, Oct 2, 2026: from $214
    02

    Fri

  • ORD–SAT: cmp-view-offers-disclaimer. Find Offers
    03

    Sat

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

    Sun

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

    Mon

  • ORD–SAT: cmp-view-offers-disclaimer. Find Offers
    06

    Tue

  • ORD–SAT: cmp-view-offers-disclaimer. Find Offers
    07

    Wed

  • ORD–SAT: cmp-view-offers-disclaimer. Find Offers
    08

    Thu

  • ORD–SAT, Oct 9, 2026: from $244
    09

    Fri

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

    Sat

  • ORD–SAT, Oct 11, 2026: from $209
    11

    Sun

  • ORD–SAT: cmp-view-offers-disclaimer. Find Offers
    12

    Mon

  • ORD–SAT, Oct 13, 2026: from $128
    13

    Tue

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

    Wed

  • ORD–SAT, Oct 15, 2026: from $128
    15

    Thu

  • ORD–SAT: cmp-view-offers-disclaimer. Find Offers
    16

    Fri

  • ORD–SAT: cmp-view-offers-disclaimer. Find Offers
    17

    Sat

  • ORD–SAT, Oct 18, 2026: from $188
    18

    Sun

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

    Mon

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

    Tue

  • ORD–SAT: cmp-view-offers-disclaimer. Find Offers
    21

    Wed

  • ORD–SAT: cmp-view-offers-disclaimer. Find Offers
    22

    Thu

    • Range$128-$244

    *Prices found by others in the previous 48 hours for round-trip flights. Prices shown may also require membership in our travel club, Discount Den.

    Flights Deals from Chicago, IL to San Antonio, TX on Frontier

    $
    *Prices found by others in the previous 48 hours for one-way flights. Prices shown may also require membership in our travel club, Discount Den®.

    Chicago, IL San Antonio, TX

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