Flights from Denver, CO to San Antonio, TX

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Best Deals on Flights From Denver, CO (DEN) to San Antonio, TX (SAT)

Sep 2026
from$177*
Last seen: 2 hours ago
One-way/Economy
Oct 2026
from$48*
Last seen: 3 hours ago
One-way/Economy
Nov 2026
from$48*
Last seen: 1 hour ago
One-way/Economy
cmp-daily-histogram-bars-legend-min-price-aria-label $48
cmp-daily-histogram-bars-legend-max-price-aria-label $220
Displaying fares for September-2026
  • DEN–SAT: cmp-view-offers-disclaimer. Find Offers
    16

    Wed

    SEP

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

    Thu

  • DEN–SAT, Sep 18, 2026: from $220
    18

    Fri

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

    Sat

  • DEN–SAT, Sep 20, 2026: from $214
    20

    Sun

  • DEN–SAT, Sep 21, 2026: from $214
    21

    Mon

  • DEN–SAT, Sep 22, 2026: from $202
    22

    Tue

  • DEN–SAT, Sep 23, 2026: from $202
    23

    Wed

  • DEN–SAT, Sep 24, 2026: from $211
    24

    Thu

  • DEN–SAT, Sep 25, 2026: from $211
    25

    Fri

  • DEN–SAT, Sep 26, 2026: from $202
    26

    Sat

  • DEN–SAT, Sep 27, 2026: from $211
    27

    Sun

  • DEN–SAT, Sep 28, 2026: from $211
    28

    Mon

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

    Tue

  • DEN–SAT, Sep 30, 2026: from $177
    30

    Wed

  • DEN–SAT, Oct 1, 2026: from $185
    01

    Thu

    OCT

  • DEN–SAT, Oct 2, 2026: from $185
    02

    Fri

  • DEN–SAT, Oct 3, 2026: from $177
    03

    Sat

  • DEN–SAT, Oct 4, 2026: from $185
    04

    Sun

  • DEN–SAT, Oct 5, 2026: from $66
    05

    Mon

  • DEN–SAT, Oct 6, 2026: from $59
    06

    Tue

  • DEN–SAT, Oct 7, 2026: from $48
    07

    Wed

  • DEN–SAT, Oct 8, 2026: from $77
    08

    Thu

  • DEN–SAT, Oct 9, 2026: from $77
    09

    Fri

  • DEN–SAT, Oct 10, 2026: from $48
    10

    Sat

  • DEN–SAT, Oct 11, 2026: from $160
    11

    Sun

  • DEN–SAT, Oct 12, 2026: from $180
    12

    Mon

  • DEN–SAT, Oct 13, 2026: from $153
    13

    Tue

  • DEN–SAT, Oct 14, 2026: from $48
    14

    Wed

  • DEN–SAT, Oct 15, 2026: from $66
    15

    Thu

    • Range$48-$220

    *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 Denver, CO to San Antonio, TX on Frontier

    $
    Flights Deals from Denver, CO to San Antonio, TX on Frontier
    From
    To
    Denver, CO (DEN)San Antonio, TX (SAT)One-way
    /
    Discount Den Basic Fare    		Departing Dec 26, 2026

    From

    $147

    Last seen: 3 hours ago

    *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®.

    Denver, CO San Antonio, TX

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