IATA Code
ONT
ICAO Code
KONT
Airport Type
Large Airport
Class
International

Ontario International Airport (ONT) serves the Inland Empire east of Los Angeles and handles a mix of domestic and some international flights with passenger numbers in the mid-single-digit millions in recent pre-pandemic years. It is a convenient alternative to the Los Angeles basin airports for many travelers.

The terminal complex is arranged around passenger check-in and security with gate areas for departures; the airport footprint is medium-sized compared with major coastal hubs.

Ontario International Airport
Elevation: 287 m
34.0560, -117.6010

Terminal Guide for Ontario International Airport #

ONT’s passenger facilities are arranged in a primary terminal complex with gate areas and airline counters. Check-in and baggage claim are centralized in the landside terminal; gates and the secure departures area extend from this core. Airlines operate from assigned gates within the terminal - consult airport displays or your airline for current gate information.

Getting To and From Ontario International Airport #

The airport is approximately 35-45 minutes by car from downtown Los Angeles depending on traffic; travel times to Ontario/Fontana/Riverside are shorter.

  • Taxi / rideshare: Taxis and rideshare services (Uber/Lyft) operate at ONT; fares vary widely with destination and traffic.
  • Shuttle / buses: Local and regional shuttle services connect the airport to surrounding cities; schedules vary by operator.
  • Driving / parking: On-site short-term and long-term parking is available, plus car rental facilities at the airport. Road access is via the 10, 60 and 15 freeways.

Facilities, Shopping, and Dining at Ontario International Airport #

ONT offers the typical mid-size airport amenities for domestic and international travelers.

  • Lounges: There may be airline-operated lounges and pay-per-use options; confirm access with your carrier.
  • Food & drink: A mix of cafés and restaurants is available airside and landside, including grab-and-go options.
  • Wi‑Fi & charging: Free Wi‑Fi is generally available; power outlets and charging stations are present in gate areas.
  • Luggage & services: Rental car companies have counters at the terminal; baggage services and basic passenger assistance are available.
  • Accessibility: The terminal provides accessible facilities and assistance on request.

Tips for Ontario International Airport #

  • Ontario is a convenient alternative to LAX for inland Southern California - account for traffic on the 10/60/15 corridors if driving to L.A. or Riverside.
  • Check whether your international flight departs from the terminal you expect; the airport is medium-sized but allow time for security.
  • If you’re meeting someone, the airport has short-term parking and cell-phone-waiting areas-use those rather than waiting in the curb lane.
  • Consider using off-site long-term parking lots for cheaper daily rates and shuttle service.

Weather & Climate near Ontario International Airport #

Climate

Ontario International Airport's climate is classified as Hot-Summer Mediterranean - Hot-Summer Mediterranean climate with hot summers (peaking in August) and cool winters (coldest in December). Temperatures range from 5°C to 34°C. Semi-arid with limited rainfall with a pronounced dry season.

Air Quality: AQI 53 Moderate
Best Time to Visit
JulyAugustSeptember
Temperature & Rainfall
Temperature Range
45°
Warmest Month
-4°
Coldest Month
Monthly Conditions
Month Comfort Temp Feels Rain Sky Humidity Wind UV Daylight
January Very Good 6° - 19° 12° 79 mm some cloud 55% 2.6 m/s 0.6 moderate 10.0h
February Very Good 7° - 20° 13° 81 mm mostly sunny 58% 2.8 m/s 0.9 moderate 10.8h
March Very Good 8° - 21° 14° 67 mm mostly sunny 59% 3.1 m/s 1.4 high 11.8h
April Ideal 9° - 24° 17° 23 mm mostly sunny 57% 3.4 m/s 1.9 very high 12.9h
May Ideal 12° - 26° 19° 7 mm clear 55% 3.5 m/s 2.2 extreme 13.8h
June Ideal 14° - 30° 22° 1 mm clear 47% 3.4 m/s 2.6 extreme 14.3h
July Ideal 16° - 33° 25° 1 mm clear 41% 3.2 m/s 2.6 extreme 14.1h
August Ideal 17° - 34° 25° 4 mm clear 38% 3.0 m/s 2.4 extreme 13.3h
September Ideal 15° - 32° 24° 9 mm clear 40% 2.8 m/s 1.8 very high 12.3h
October Ideal 12° - 28° 20° 10 mm clear 45% 2.6 m/s 1.2 high 11.2h
November Excellent 8° - 23° 15° 41 mm mostly sunny 47% 2.5 m/s 0.7 moderate 10.2h
December Very Good 5° - 20° 12° 52 mm some cloud 55% 2.4 m/s 0.5 low 9.7h

Nearby Cities #