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Airport guide · public data
ONT airport guide (2026): parking, car rental & hotels
Ontario International Airport (ONT) in Ontario, CA is #53 in Busiest US airports · ranked by public data (FAA 2025 passenger boardings). Everything below comes from the airport's own pages, the FAA and OurAirports, with dates.
Parking at ONT
9 official lots. Cheapest: $20/day at Lot 5. Garage from $30/day.
Car rental at ONT
11 brands on the airport's list: Alamo, Avis, Budget, Dollar, Enterprise…
Hotels near ONT
Delta Hotels Ontario Airport, Home2 Suites by Hilton Ontario Airport, Hampton Inn by Hilton Ontario Airport, Wyndham, Holiday Inn Ontario Airport, and 18 more (OpenStreetMap, nearest first).
Facts ONT at a glance
- Official name
- Ontario International Airport
- Codes
- IATA ONT · ICAO KONT
- Passenger boardings 2025
- 3,473,874 (#53 in Busiest US airports · ranked by public data; 2024: 3,494,554) · FAA final CY2025
- FAA hub size
- Medium hub
- Elevation
- 944 ft · OurAirports
- Runways
- 2 (longest 12,197 ft) · OurAirports
- Official website
- www.flyontario.com
Book Park ahead or stay the night
Airport lounges: see Priority Pass's own lounge finder for ONT; we have not checked lounge lists.
FAQ
How busy is ONT?
Ontario International Airport had 3,473,874 passenger boardings (enplanements) in calendar year 2025: #53 in Busiest US airports · ranked by public data (FAA final CY2025 data; -0.6% vs 2024).
What is the cheapest official parking at ONT?
Lot 5 at $20 per day ($20 per day; shuttle), per the airport's parking page checked Oct 31, 2026.
Which rental car companies serve ONT?
The airport's rental car page lists Alamo, Avis, Budget, Dollar, Enterprise, Fox, Hertz, National, Payless, Thrifty, Turo.