Southwest Airlines Terminal at Ontario International Airport (ONT)

Southwest Airlines carries out all its operations in Terminal 4 at Ontario International Airport. Ontario Airport Southwest Terminal focuses on domestic routes across North America, Central America, the Caribbean, and Hawaii. Currently, the airline does not offer nonstop international flights. For long-distance international travel, passengers typically connect through a larger hub airport or book an international ticket through Southwest’s website starting at ONT.

Overview of Ontario International Airport Southwest Terminal

Southwest Airlines’ domestic departures and arrivals are handled in Terminal 4 at Ontario Airport. The terminal is organized into two levels to manage all the flight operations.

Southwest Airlines Terminal 4 at Ontario Airport
  • Level 1: This level handles arrivals and ground transportation services.
  • Level 2: All the departures and pre-flight services are available at this level.

Southwest Ontario Terminal Departures

The Southwest Airlines ticketing counters open 90 minutes before the scheduled departures.

Southwest Ontario Terminal Departures
  • The check-in counters are located on level 2.
  • Southwest A-List/A-List Preferred members and Choice Extra/Preferred (Business Select/Anytime) ticket holders can use priority lanes for quick check-in and baggage tag.
  • The ONT security wait time at Terminal 4 security checkpoint is under 20 minutes.
  • TSA PreCheck and CLEAR are available at the main security checkpoint.
  • Express Lanes are also there for the eligible passengers.
  • Head to the boarding gates after the security check process. Southwest Airlines typically departs from 403-407 gates.

Southwest Airlines Arrivals Terminal at Ontario Airport

The lower level of the Southwest Airlines Ontario Airport Terminal is dedicated to arrival operations.

  • After deplaning, head to the baggage claim area.
  • The Southwest Airlines baggage carousels are located near the terminal exit.
  • Just outside the doors, rideshare services, taxis, and shuttles to the rental car center or parking lots are located.

Map of Southwest Terminal ONT

All the key areas, including check-in counters, security checkpoints, baggage claim area, priority lanes, express lanes, and other services, are clearly mentioned on the Southwest Terminal Ontario map.

Southwest Ontario Airport Terminal Services 

The Ontario Airport terminal for Southwest Airlines offers several amenities and services, such as:

  • Ticketing and check-in counters
  • Priority and express lanes
  • Food and beverage options
  • Aspire Lounge for eligible passengers
  • Restrooms
  • Charging stations
  • Free Wi-Fi access
  • Quick bites
  • Sit-Down dining
  • Hydration stations
  • Nursing room
  • Retails

The Ontario Airport Southwest Terminal 4 has separated arrival and departure levels, easy-to-find gates, and essential amenities for domestic flights. The airline’s service from ONT focuses on domestic US destinations, and international passengers need to book connecting flights.

Frequently Asked Questions (FAQs)

What terminal is Southwest at Ontario Airport?

Southwest Airlines uses Terminal 4 at Ontario International Airport.

Can I fly to Mexico from Ontario Airport with Southwest Airlines?

Yes, but you will have at least one stop. The airlines foes not offer direct flights.

Does the Southwest ONT terminal offer flights to Canada?

No, Southwest does not currently serve Canada from the ONT airport.

What gate numbers does Southwest use at ONT?

Southwest flights typically use gates between 403 to 407.

Does the ONT Southwest Terminal 4 have rental car services nearby?

Yes, rental car facilities are available near the terminal. It is accessible via shuttle services from the terminal.

Where can I find the baggage claim in the Southwest Terminal at Ontario Airport?

The ONT baggage claim carousel for Southwest Airlines is located on the Lower Level of Terminal 4, near the terminal exits.

Where is the pet relief area in Ontario Southwest Terminal 4?

The indoor pet relief area is located near Gate 410.

Can I walk between Terminal 2 and Southwest Terminal 4 at ONT?

Yes, there is a walkway between both terminals. A free shuttle bus also runs between the terminals every 10-15 minutes.

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