Southwest Airlines Ontario Terminal, Check-in, and Baggage Option:


Ontario International Airport






+1 909-544-5300

Terminal ADDRESS

Ontario, CA 91761, United States


What Terminal Is Southwest At Ontario International Airport?

Below are the details for Southwest Ontario (ONT) terminal:

Arrivals and Departures Terminal (ONT):

Southwest operates from Terminal 4 at Ontario International Airport (ONT) for all arrivals and departures. This is applicable for both domestic and international flights at Ontario (ONT) Airport.


  • Southwest Airlines Terminal 4 includes Gates: 403-407 at Ontario International Airport.
  • To obtain assistance regarding the Ontario International Airport terminal, please dial the telephone number +1 909-544-5300.
  • Southwest Airlines offers 105 flights each week from ONT airport to different cities.
  • On weekdays, there are 9 cities with nonstop flights from ONT, and on weekends, there are 9 cities.

Overview of Ontario International Airport 

Ontario International Airport provides convenient and flexible service to its passengers which is why it is one of the popular airports in Southern California, US. Some of the important details about this airport are given below; 

  • Ontario International Airport is located about 38 miles (61 km) east of downtown Los Angeles and 18 miles (29 km) west of downtown San Bernardino. 
  • This airport is the second-busiest airport in the Inland Empire, after Los Angeles International Airport (LAX). 
  • Before Covid-19 this airport served commercial jet service to approx 26 major airports in the U.S., Taiwan, and Mexico. 
  • From Ontario, you can fly to Atlanta, Colonie, Austin, New York, and many more places. 

What are the Amenities of Southwest Terminal Ontario Airport?

There are some details about the amenities that you must know if you are planning to travel to Ontario International Airport. Details are given below:

Lounges: At the airport, you may find a very large crowd that can ruin your mood and decrease your energy level as well. But if you want to escape from the rushed departure area, then you can wait at one of the lounges in the Southwest Terminal ONT. The lounges at Ontario have Snacks counter, Bars, Display Tvs, Wifi, Digital magazines, newspaper, Play areas for children, and many more.

A few names of the lounges that are located at terminal 4 are given below:

  • Aspire Lounge
  • Mix Champagne Lounge
  • Misty's Lounge
  • Rock & Brews
  • Eighty Sixed Sports Lounge
  • Leos Corner Lounge & Grill

Note: These lounges are located at level 2 of the airport.

Dining options: If you like to eat a lot then you will not get disappointed if you are at Southwest Ontario Terminal. Terminal 4  has many places where you can go to eat some delicious food.

Some of the options are given below:

  • Dunkin' Donuts
  • Harvest & Grounds
  • Wahoo's Fish Taco
  • Jake’s Bar
  • Yo-Kai Express

Car rental: If you have a driving license and are above 21 years old then you can rent a car through many car rental companies at Ontario Airport for easy travel. Some of the common car rental brands are given below:

  • Green Motion
  • Avis
  • Sixt
  • Alamo
  • Budget
  • Dollar
  • Europcar

Flight Options and Destinations

Southwest Airlines is popular because of its low-fare flexible tickets. This airline operates several flight destinations. Southwest offers direct and connecting flight options. 

Direct Flights to Ontario

Southwest Airlines provides 79 (non-stop) direct flights to Ontario International Airport. The name of some cities is given below:

  • Austin, Texas
  • Chicago, Illinois
  • Dallas, Texas
  • Denver, Colorado
  • Las Vegas, Nevada
  • Phoenix, Arizona.

Connecting Flights to Ontario 

Southwest Airlines also provides 79 connecting flights to Ontario International Airport. The name of some cities is given below:

  • Albany, New York
  • Eugene, Oregon
  • Hartford, Connecticut
  • Miami, Florida
  • Salt Lake City, Utah
  • Washington

Frequently Asked Questions (FAQs)

Yes, Ontario International Airport has a Kiosk facility in both terminal 2 and terminal 4.

Yes, there is a wheelchair facility for differently-abled passengers. ONT also offers a pre-boarding facility as well.

You may reach the airport via taxis, rental cars, public transport, etc.

You can visit the check-in counter at the airport. The live agent can assist you to check your flight status.

For any query regarding your flight and airport, you can call on +1 909-544-5300.

Phone Only Flight Deals - Save Up to 50%