Southwest® flights from Ontario/LA to Montrose, CO from $109

Promo Code

Low fares from Ontario/LA to Montrose, CO

$

Ontario/LA (ONT)to

Montrose, CO (MTJ)
Depart: 11/12/2026

One-way

Basic

From
$109
Seen: 5 hrs ago

Ontario/LA (ONT)to

Montrose, CO (MTJ)
Depart: 11/05/2026

One-way

Basic

From
$118
Seen: 10 hrs ago

Ontario/LA (ONT)to

Montrose, CO (MTJ)
Depart: 11/04/2026

One-way

Basic

From
$118
Seen: 10 hrs ago

Ontario/LA (ONT)to

Montrose, CO (MTJ)
Depart: 11/12/2026

One-way

Choice

From
$149
Seen: 5 hrs ago

Ontario/LA (ONT)to

Montrose, CO (MTJ)
Depart: 11/05/2026

One-way

Choice

From
$160
Seen: 10 hrs ago

Ontario/LA (ONT)to

Montrose, CO (MTJ)
Depart: 11/04/2026

One-way

Choice

From
$160
Seen: 10 hrs ago

Looking for more low-fare flights?

Check out the Low Fare Calendar to find a fare that works for you. Just choose the month you want to depart and return, and we’ll show you the best fares available.

Find low fares

Explore flights from Ontario/LA to Montrose, CO

Oct 2026
From$213*
Seen: 17 hrs ago
One Way/Basic
Nov 2026
From$109*
Seen: 5 hrs ago
One Way/Basic
Dec 2026
No result for this month.
cmp-daily-histogram-bars-legend-min-price-aria-label $118
Displaying fares for October-2026
  • ONT–MTJ: cmp-view-offers-disclaimer. Find Offers
    09

    Fri

    OCT

  • ONT–MTJ: cmp-view-offers-disclaimer. Find Offers
    10

    Sat

  • ONT–MTJ: cmp-view-offers-disclaimer. Find Offers
    11

    Sun

  • ONT–MTJ: cmp-view-offers-disclaimer. Find Offers
    12

    Mon

  • ONT–MTJ: cmp-view-offers-disclaimer. Find Offers
    13

    Tue

  • ONT–MTJ: cmp-view-offers-disclaimer. Find Offers
    14

    Wed

  • ONT–MTJ: cmp-view-offers-disclaimer. Find Offers
    15

    Thu

  • ONT–MTJ: cmp-view-offers-disclaimer. Find Offers
    16

    Fri

  • ONT–MTJ: cmp-view-offers-disclaimer. Find Offers
    17

    Sat

  • ONT–MTJ: cmp-view-offers-disclaimer. Find Offers
    18

    Sun

  • ONT–MTJ: cmp-view-offers-disclaimer. Find Offers
    19

    Mon

  • ONT–MTJ: cmp-view-offers-disclaimer. Find Offers
    20

    Tue

  • ONT–MTJ: cmp-view-offers-disclaimer. Find Offers
    21

    Wed

  • ONT–MTJ: cmp-view-offers-disclaimer. Find Offers
    22

    Thu

  • ONT–MTJ, 10/23/2026: From $213
    23

    Fri

  • ONT–MTJ: cmp-view-offers-disclaimer. Find Offers
    24

    Sat

  • ONT–MTJ: cmp-view-offers-disclaimer. Find Offers
    25

    Sun

  • ONT–MTJ: cmp-view-offers-disclaimer. Find Offers
    26

    Mon

  • ONT–MTJ: cmp-view-offers-disclaimer. Find Offers
    27

    Tue

  • ONT–MTJ: cmp-view-offers-disclaimer. Find Offers
    28

    Wed

  • ONT–MTJ: cmp-view-offers-disclaimer. Find Offers
    29

    Thu

  • ONT–MTJ: cmp-view-offers-disclaimer. Find Offers
    30

    Fri

  • ONT–MTJ: cmp-view-offers-disclaimer. Find Offers
    31

    Sat

  • ONT–MTJ: cmp-view-offers-disclaimer. Find Offers
    01

    Sun

    NOV

  • ONT–MTJ: cmp-view-offers-disclaimer. Find Offers
    02

    Mon

  • ONT–MTJ: cmp-view-offers-disclaimer. Find Offers
    03

    Tue

  • ONT–MTJ, 11/04/2026: From $118
    04

    Wed

  • ONT–MTJ, 11/05/2026: From $118
    05

    Thu

  • ONT–MTJ: cmp-view-offers-disclaimer. Find Offers
    06

    Fri

  • ONT–MTJ: cmp-view-offers-disclaimer. Find Offers
    07

    Sat

  • ONT–MTJ: cmp-view-offers-disclaimer. Find Offers
    08

    Sun

    • Range$118-$213

    *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:
    LA/Ontario International Airport
    Arriving at:
    Montrose Regional Airport
    Distance:
    622 miles

    Questions we hear the most

    There are 25 weekly flights from Ontario/LA to Montrose, CO on Southwest Airlines.
    To find the lowest fares by day and time to fly Ontario/LA to Montrose, CO with Southwest, check out our Low Fare Calendar.
    You can rent a car at Montrose Regional Airport book yours with your flight.
    Yes! Flights from Ontario/LA to Montrose, CO—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.

    Explore Flights from Other Popular Origins

    Popular Flights from Ontario/LA