Southwest® flights from Rochester to Ontario/LA from $255

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Low fares from Rochester to Ontario/LA

$

Rochester (ROC)to

Ontario/LA (ONT)
Depart: 08/20/2026

One-way

Basic

From
$255
Seen: 2 hrs ago

Rochester (ROC)to

Ontario/LA (ONT)
Depart: 08/20/2026

One-way

Choice

From
$310
Seen: 2 hrs ago

Rochester (ROC)to

Ontario/LA (ONT)
Depart: 08/20/2026

One-way

Choice Preferred

From
$390
Seen: 2 hrs ago

Rochester (ROC)to

Ontario/LA (ONT)
Depart: 08/20/2026

One-way

Choice Extra

From
$450
Seen: 2 hrs ago

Rochester (ROC)to

Ontario/LA (ONT)
Depart: 08/16/2026

One-way

Choice

From
$459
Seen: 3 hrs ago

Rochester (ROC)to

Ontario/LA (ONT)
Depart: 08/05/2026

One-way

Choice

From
$464
Seen: 9 hrs ago

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Explore flights from Rochester to Ontario/LA

Aug 2026
From$255*
Seen: 2 hrs ago
One Way/Basic
Sep 2026
No result for this month.
Oct 2026
No result for this month.
cmp-daily-histogram-bars-legend-min-price-aria-label $255
Displaying fares for August-2026
  • ROC–ONT, 08/05/2026: From $464
    05

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    AUG

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  • ROC–ONT, 08/10/2026: From $464
    10

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  • ROC–ONT, 08/16/2026: From $459
    16

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  • ROC–ONT, 08/20/2026: From $255
    20

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    31

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    • Range$255-$464

    *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:
    Greater Rochester International Airport
    Arriving at:
    LA/Ontario International Airport
    Distance:
    2227 miles

    Route Information

    51† 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 51 weekly flights from Rochester to Ontario/LA on Southwest Airlines.
    To find the lowest fares by day and time to fly Rochester to Ontario/LA with Southwest, check out our Low Fare Calendar.
    You can rent a car at LA/Ontario International Airport book yours with your flight.
    Yes! Flights from Rochester to Ontario/LA—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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