Southwest Airlines ONT Terminal Information
| Airlines Operates From | Terminal 4 |
| Official Airport Website | https://www.flyontario.com/ |
| ONT Arrival Terminal | T4 |
| ONT Departure Terminal | T4 |
Southwest Airlines ONT Terminal 4 Check-in
| Arrive Early | Recommended Arrival Time |
| Check-in Options/Kiosk | Boarding Gates |
| Bag Drop | Security Check |
| Online Check-in | Baggage Claim |
ONT Terminal 4 Details
14 Gates:
Other Airlines Check in at T4:-
| Southwest Airlines | Hawaiian Airlines |
| American Airlines | New Pacific Airlines |
Southwest ONT Terminal 4 Map
Amenities at Southwest Airlines ONT Terminal 4
| Dining | Entertainment |
| Shopping | Connectivity |
| Services | Family |
| Lounge | Pet-Friendly |
| Relaxation | Accessibility |
Services Provided by Southwest Airlines
| Seating Options | Customer Support |
| In-Flight Services | Booking Options |
| Loyalty Program | Check-In Options |
| Special Services | Baggage Options |
Contact Southwest Airlines Ontario International Airport Terminal for Concerns/Queries
| Airport Phone Number | +1 855-463-5252 |
| Southwest Airlines Number | 1-800-435-9792 |
| Southwest Airlines Ontario Office | Click Here |
Related: List of all Southwest Airlines Terminal
Frequently Asked Questions
What Terminal is Southwest Airlines at Ontario Airport (ONT)?
Southwest Airlines operates from Terminal 4 at Ontario Airport.
Can I check in online for my Southwest flight at ONT?
Yes, Southwest Airlines offers online check-in for flights departing from Terminal 4 at ONT.
Is there Wi-Fi available in the Southwest Terminal at ONT?
Yes, complimentary Wi-Fi is available throughout Terminal 4.
How early should I get to ONT for Southwest?
Arrive two hours before Southwest flight departure at ONT.
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