Southwest® flights from Ontario/LA to Tucson from $158

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Low fares from Ontario/LA to Tucson

$

Ontario/LA (ONT)to

Tucson (TUS)
Depart: 09/10/2026

One-way

Basic

From
$158
Seen: 10 hrs ago

Ontario/LA (ONT)to

Tucson (TUS)
Depart: 08/24/2026

One-way

Basic

From
$158
Seen: 7 hrs ago

Ontario/LA (ONT)to

Tucson (TUS)
Depart: 09/06/2026

One-way

Basic

From
$158
Seen: 3 hrs ago

Ontario/LA (ONT)to

Tucson (TUS)
Depart: 08/29/2026

One-way

Basic

From
$158
Seen: 21 hrs ago

Ontario/LA (ONT)to

Tucson (TUS)
Depart: 09/11/2026

One-way

Basic

From
$158
Seen: 5 hrs ago

Ontario/LA (ONT)to

Tucson (TUS)
Depart: 08/20/2026

One-way

Basic

From
$158
Seen: 13 hrs ago

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Explore flights from Ontario/LA to Tucson

Jul 2026
From$401*
Seen: 21 hrs ago
One Way/Basic
Aug 2026
From$158*
Seen: 21 hrs ago
One Way/Basic
Sep 2026
From$158*
Seen: 10 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $158
cmp-daily-histogram-bars-legend-max-price-aria-label $401
Displaying fares for July-2026
  • ONT–TUS, 07/31/2026: From $401
    31

    Fri

    JUL

  • ONT–TUS, 08/01/2026: From $401
    01

    Sat

  • ONT–TUS, 08/02/2026: From $401
    02

    Sun

  • ONT–TUS, 08/03/2026: From $396
    03

    Mon

  • ONT–TUS: cmp-view-offers-disclaimer. Find Offers
    04

    Tue

  • ONT–TUS: cmp-view-offers-disclaimer. Find Offers
    05

    Wed

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

    Thu

  • ONT–TUS, 08/07/2026: From $347
    07

    Fri

  • ONT–TUS, 08/08/2026: From $347
    08

    Sat

  • ONT–TUS, 08/09/2026: From $342
    09

    Sun

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

    Mon

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

    Tue

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

    Wed

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

    Thu

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

    Fri

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

    Sat

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

    Sun

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

    Mon

  • ONT–TUS, 08/18/2026: From $261
    18

    Tue

  • ONT–TUS, 08/19/2026: From $261
    19

    Wed

  • ONT–TUS, 08/20/2026: From $158
    20

    Thu

  • ONT–TUS, 08/21/2026: From $189
    21

    Fri

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

    Sat

  • ONT–TUS: cmp-view-offers-disclaimer. Find Offers
    23

    Sun

  • ONT–TUS, 08/24/2026: From $158
    24

    Mon

  • ONT–TUS, 08/25/2026: From $174
    25

    Tue

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

    Wed

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

    Thu

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

    Fri

  • ONT–TUS, 08/29/2026: From $158
    29

    Sat

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

    Sun

    • Range$158-$401

    *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:
    Tucson International Airport
    Distance:
    409 miles

    Route Information

    97† 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 97 weekly flights from Ontario/LA to Tucson on Southwest Airlines.
    To find the lowest fares by day and time to fly Ontario/LA to Tucson with Southwest, check out our Low Fare Calendar.
    You can rent a car at Tucson International Airport book yours with your flight.
    Yes! Flights from Ontario/LA to Tucson—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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