Flights from Houston, TX to St. Louis, MO

Promo Code

Best Deals on Flights From Houston, TX (IAH) to St. Louis, MO (STL)

Oct 2026
from$214*
Last seen: 1 hour ago
One-way/Economy
Nov 2026
from$99*
Last seen: 1 hour ago
One-way/Economy
Dec 2026
from$116*
Last seen: 14 hours ago
One-way/Economy
cmp-daily-histogram-bars-legend-min-price-aria-label $116
cmp-daily-histogram-bars-legend-max-price-aria-label $220
Displaying fares for October-2026
  • IAH–STL: cmp-view-offers-disclaimer. Find Offers
    23

    Fri

    OCT

  • IAH–STL: cmp-view-offers-disclaimer. Find Offers
    24

    Sat

  • IAH–STL, Oct 25, 2026: from $220
    25

    Sun

  • IAH–STL, Oct 26, 2026: from $214
    26

    Mon

  • IAH–STL, Oct 27, 2026: from $214
    27

    Tue

  • IAH–STL, Oct 28, 2026: from $214
    28

    Wed

  • IAH–STL, Oct 29, 2026: from $214
    29

    Thu

  • IAH–STL: cmp-view-offers-disclaimer. Find Offers
    30

    Fri

  • IAH–STL: cmp-view-offers-disclaimer. Find Offers
    31

    Sat

  • IAH–STL, Nov 1, 2026: from $179
    01

    Sun

    NOV

  • IAH–STL, Nov 2, 2026: from $179
    02

    Mon

  • IAH–STL: cmp-view-offers-disclaimer. Find Offers
    03

    Tue

  • IAH–STL: cmp-view-offers-disclaimer. Find Offers
    04

    Wed

  • IAH–STL, Nov 5, 2026: from $165
    05

    Thu

  • IAH–STL, Nov 6, 2026: from $159
    06

    Fri

  • IAH–STL, Nov 7, 2026: from $119
    07

    Sat

  • IAH–STL: cmp-view-offers-disclaimer. Find Offers
    08

    Sun

  • IAH–STL, Nov 9, 2026: from $116
    09

    Mon

  • IAH–STL: cmp-view-offers-disclaimer. Find Offers
    10

    Tue

  • IAH–STL: cmp-view-offers-disclaimer. Find Offers
    11

    Wed

  • IAH–STL: cmp-view-offers-disclaimer. Find Offers
    12

    Thu

  • IAH–STL: cmp-view-offers-disclaimer. Find Offers
    13

    Fri

  • IAH–STL: cmp-view-offers-disclaimer. Find Offers
    14

    Sat

  • IAH–STL: cmp-view-offers-disclaimer. Find Offers
    15

    Sun

  • IAH–STL: cmp-view-offers-disclaimer. Find Offers
    16

    Mon

  • IAH–STL: cmp-view-offers-disclaimer. Find Offers
    17

    Tue

  • IAH–STL: cmp-view-offers-disclaimer. Find Offers
    18

    Wed

  • IAH–STL: cmp-view-offers-disclaimer. Find Offers
    19

    Thu

  • IAH–STL: cmp-view-offers-disclaimer. Find Offers
    20

    Fri

  • IAH–STL: cmp-view-offers-disclaimer. Find Offers
    21

    Sat

  • IAH–STL: cmp-view-offers-disclaimer. Find Offers
    22

    Sun

    • Range$116-$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 Houston, TX to St. Louis, MO on Frontier

    $
    Flights Deals from Houston, TX to St. Louis, MO on Frontier
    From
    To
    Houston, TX (IAH)St. Louis, MO (STL)One-way
    /
    Discount Den Basic Fare    		Departing Feb 28, 2027

    From

    $179

    Last seen: 20 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®.

    Houston, TX St. Louis, MO

    Barclays Badge

    Earn up to 60,000 Miles after qualifying activity. Terms apply.