Southwest® flights from El Paso to Ontario/LA from $145

Promo Code

Low fares from El Paso to Ontario/LA

$

El Paso (ELP)to

Ontario/LA (ONT)
Depart: 09/05/2026

One-way

Basic

From
$145
Seen: 12 hrs ago

El Paso (ELP)to

Ontario/LA (ONT)
Depart: 09/14/2026

One-way

Basic

From
$145
Seen: 8 hrs ago

El Paso (ELP)to

Ontario/LA (ONT)
Depart: 10/17/2026

One-way

Basic

From
$145
Seen: 58 minutes ago

El Paso (ELP)to

Ontario/LA (ONT)
Depart: 10/07/2026

One-way

Basic

From
$145
Seen: 8 hrs ago

El Paso (ELP)to

Ontario/LA (ONT)
Depart: 09/21/2026

One-way

Basic

From
$145
Seen: 4 hrs ago

El Paso (ELP)to

Ontario/LA (ONT)
Depart: 10/21/2026

One-way

Basic

From
$145
Seen: 14 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 El Paso to Ontario/LA

Aug 2026
From$145*
Seen: 20 hrs ago
One Way/Basic
Sep 2026
From$145*
Seen: 4 hrs ago
One Way/Basic
Oct 2026
From$145*
Seen: 14 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $145
cmp-daily-histogram-bars-legend-max-price-aria-label $409
Displaying fares for August-2026
  • ELP–ONT, 08/01/2026: From $409
    01

    Sat

    AUG

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

    Sun

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

    Mon

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

    Tue

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

    Wed

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

    Thu

  • ELP–ONT, 08/07/2026: From $331
    07

    Fri

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

    Sat

  • ELP–ONT, 08/09/2026: From $331
    09

    Sun

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

    Mon

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

    Tue

  • ELP–ONT, 08/12/2026: From $331
    12

    Wed

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

    Thu

  • ELP–ONT, 08/14/2026: From $239
    14

    Fri

  • ELP–ONT, 08/15/2026: From $239
    15

    Sat

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

    Sun

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

    Mon

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

    Tue

  • ELP–ONT, 08/19/2026: From $239
    19

    Wed

  • ELP–ONT, 08/20/2026: From $239
    20

    Thu

  • ELP–ONT, 08/21/2026: From $184
    21

    Fri

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

    Sat

  • ELP–ONT, 08/23/2026: From $209
    23

    Sun

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

    Mon

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

    Tue

  • ELP–ONT, 08/26/2026: From $145
    26

    Wed

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

    Thu

  • ELP–ONT, 08/28/2026: From $184
    28

    Fri

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

    Sat

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

    Sun

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

    Mon

    • Range$145-$409

    *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:
    El Paso International Airport
    Arriving at:
    LA/Ontario International Airport
    Distance:
    670 miles

    Route Information

    141† 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 141 weekly flights from El Paso to Ontario/LA on Southwest Airlines.
    To find the lowest fares by day and time to fly El Paso 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 El Paso 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.

    Explore Flights from Other Popular Origins

    Popular Flights from El Paso