Flights from Ontario with Southwest Airlines®.

Discover where Southwest® flies out of Ontario International Airport and trade the West Coast for whatever’s next.

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TripAdvisor has rated us #1.

Best Airline in the U.S. and North America & Best Economy and Low Cost Airline in North America.

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Traveling from Ontario.

Southwest Airlines is proud to serve Ontario International Airport.

Whether you’d like to see what else the West has to offer or try the Midwest on for size, there’s no need to brave the mid-city traffic when you can catch a convenient Southwest flight closer to home. Even though you’re leaving, everything’s a little easier when you’re closer to home. Find a Southwest flight that works for you out of Ontario International Airport.

Not sure where to head next? Explore the list of places that Southwest flies out of Ontario International Airport and see which locale inflicts you with a bit of a travel bug. Find yourself just the change of scenery that’ll suit your needs, whether that’s a jaunt up to the Pacific Northwest, a trip over to the Rockies, or a visit to the Great Lakes. Trade Tinseltown for any town to which Southwest flies, so long as it’s the town that’s right for you.

While there’s little that can’t be found in the Los Angeles area, you’ll surely discover something surprising wherever you travel on a flight with Southwest Airlines. Explore enticing add-ons including travel bundles and all kinds of activities from Southwest Airlines® Experiences and earn Rapid Rewards® points when you fly. All the while, you’ll enjoy a straightforward booking process, from flight selection to the time you board your flight. See what else makes the Southwest® Experience special today.

Other airports in the Los Angeles Area.

Want to depart from another airport Southwest serves? Consider booking a flight from Long Beach Airport, Los Angeles International Airport, John Wayne Airport Orange County, or Hollywood Burbank Airport.

Where you can fly from Ontario.

Plan your ideal trip from Ontario.

 
Las Vegas

Jet off to America’s Playground! When you travel to Las Vegas, having a good time is a sure thing.

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Oakland

Visit the bright side of the Bay and jet off to this West Coast port city, perfect for the adventurer in you.

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Sacramento

Journey inland from the coastline and explore California’s burgeoning state capital.

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Phoenix

See what life is like in the Valley of the Sun when you fly to Phoenix Sky Harbor International Airport.

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Dallas (Love Field)

Get ready to be wowed by the Big D! Dallas does everything big and they do it well—from blues to leading a herd of bronze steers.

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Chicago (Midway)

The hustle and bustle of the City of the Big Shoulders awaits. Enjoy a world class city filled with Midwest nice people—start your Chicagoland adventure.

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Portland, OR

The City of Roses blooms all year round with art, music, cuisine, and its own special vibe. You can help keep it weird when you visit Portland, Oregon.

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Denver

See the world from a higher perspective. Let the Mile High City enamor you with its beautiful mix of urban and mountain style living.

Read more
Check out our Route Tool for a full list of Southwest® destinations in every region.
Travel Advisory

During the ongoing COVID-19 pandemic, the availability, health and safety procedures, operations, and schedules for local attractions are changing constantly. Please contact attractions directly for hours of operation, potential temperature screenings, and other possible health and safety procedures and restrictions. Visit our Coronavirus Travel Information page for information about potential restrictions on air travel.

Ontario/LA, CA to

departing on

one-way starting at

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Find low fares from Ontario/LA.
Ontario/LA, CA to Oakland, CA

departing on 12/23

one-way starting at

$49
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Ontario/LA, CA to San Jose, CA

departing on 12/17

one-way starting at

$49
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Ontario/LA, CA to Sacramento, CA

departing on 12/10

one-way starting at

$69
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Ontario/LA, CA to Seattle/Tacoma, WA

departing on 1/05

one-way starting at

$73
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Ontario/LA, CA to Tucson, AZ

departing on 12/10

one-way starting at

$74
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Ontario/LA, CA to Reno/Tahoe, NV

departing on 12/24

one-way starting at

$79
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Ontario/LA, CA to Albuquerque, NM

departing on 1/06

one-way starting at

$83
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Ontario/LA, CA to El Paso, TX

departing on 1/05

one-way starting at

$83
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See all our low fares from Ontario/LA.

Points bookings do not include taxes, fees, and other government/airport charges of at least $5.60 per one-way flight.

Seats and days are limited. Fares may vary by destination, flight, and day of week and won't be available on some flights that operate during very busy travel times and holiday periods.

Fares may be combined with other Southwest Airlines® combinable fares. If combining with other fares, the most restrictive fare's rules apply.

Fares are nonrefundable but may be applied toward future travel on Southwest Airlines®, as long as reservations are canceled at least ten minutes prior to the scheduled departure. Failure to cancel prior to departure will result in forfeiture of remaining funds on the reservation.

Any change in itinerary may result in an increase in fare. Standby travel may require an upgrade to the Anytime fare depending on Rapid Rewards® tier status.

Fares are subject to change until ticketed.

Offer applies only to published, scheduled service.

Got flexible travel plans?

Use our Low Fare Calendar to find the cheapest flights from Ontario available inside your travel window.

Find flights

Plan your trip from Ontario.

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Rent a car.

Earn Rapid Rewards points on your next rental car.

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Book a hotel.

Find deals for any season.

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Plan a vacation.

Southwest Vacations® offers tons of vacation packages with amazing travel deals.

Create a vacation package

Details about Ontario International Airport.

Airport code:ONT

City:Ontario/LA

State:California

Terminal 4

Gates 403-407

9

Cities served nonstop daily from ONT*

84

Cities served daily from ONT*

*Based on DOT published scheduled average flights Monday-Friday between 10/30/2020 and 12/31/2020, as of 11/2/2020.

Why fly Southwest?

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Bags fly free®1

Your bags fly free, because nothing should be left behind. So pack up without paying up with our two free checked bags.

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No change fees2

Think your plans may change? Don’t sweat it. We don’t charge you fees to change your mind2.

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Gate to gate WiFi3

Surf the web from origin to destination with gate-to-gate WiFi on your flight. Bring your device, and for $8 the Internet will make time fly by on all our flights.

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Fly in comfort

Southwest seats give you up to a 31-inch pitch, 17-inch width, and 2-inch recline, which all adds up to a more comfortable flight.

100% free entertainment.

Boredom doesn’t fly with us. So on your flight, watch a movie3 for free. Just one way we make getting to your destination as nice as being there. Well...almost.

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Your trip comes with low fares and no hidden fees thanks to Transfarency®.

Southwest is bringing our low fares and no hidden fees with us. We want to make your trip special, so we’re taking everything you love about Southwest and bringing it all to your travels. Get everything Transfarency has to offer on your next trip, only with Southwest.

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Join Rapid Rewards, our award-winning frequent flyer program4.

Southwest Rapid Rewards lets you use your points on any flight, any day, any time, which means you can turn your points into a reward flight. Sign up and see why we’ve been named the best rewards program four years in a row4. Points that actually reward you with getaways, that’s Southwest Rapid Rewards.

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100% reward availability5.

You can use your points to book any seat, on any flight, no exceptions. Any day, any time, any flight, your points are ready to take you to where you want to go.

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No blackout dates.

If there’s a seat available on a Southwest flight, you can use your points. It’s that easy. So no matter when you want to get away, you can use your points to get you there. As long as we have a spot available on a flight, you can book it with your Southwest Rapid Rewards points.

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Your points don’t expire.

No matter when you earn them, they’ll be there for you to redeem on your flight to anywhere you want to go.

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Rapid Rewards. Rapid redemption.

You can earn points on flights and on everyday purchases with our partners, which makes getting to our destinations easy. And our reward flights are based on our low fares, so the lower the fare, the fewer points you have to use. It’s almost like we want you to have the trip of a lifetime.

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1First and second checked bags. Weight and size limits apply.

2Fare difference may apply.

3Download the Southwest® app to view movies and on-demand content. Inflight messaging only allows access to iMessage and WhatsApp. Apps must be downloaded before the flight. Internet access for $8 a day per device on WiFi-enabled aircraft. Price is subject to change. May not be available for the full duration of flight. Prohibits access to high-bandwidth applications and websites, including Netflix, HBO GO® and VoIP, along with certain obscene/offensive content.

42016-2019 Freddie Awards.

5As reported in the CarTrawler Reward Seat Availability Survey, May 16, 2019, and Switchfly Reward Seat Availability Surveys 2010 – 2019, at IdeaWorksCompany.com.