Ontario International Airport

Airport Airport

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

January

January is cool with highs of 19°C and lows of 6°C. Moderate rainfall (79 mm).

71 Very Good

Comfort

12°
Feels Like Cool
12°C
Temperature
19°
55%
Humidity
Humid

Weather

79 mm
Rainfall
2.6 m/s
Wind
Calm
0.6
UV Index
Moderate
10.0h daylight

February

February is cool with highs of 20°C and lows of 6°C. The wettest month with 81 mm of rain and mostly sunny skies.

73 Very Good

Comfort

13°
Feels Like Cool
13°C
Temperature
20°
58%
Humidity
Humid

Weather

81 mm
Rainfall
2.8 m/s
Wind
Calm
0.9
UV Index
Moderate
10.8h daylight

March

March is cool with highs of 21°C and lows of 8°C. Moderate rainfall (67 mm) and mostly sunny skies.

76 Very Good

Comfort

14°
Feels Like Cool
14°C
Temperature
21°
59%
Humidity
Humid

Weather

67 mm
Rainfall
3.1 m/s
Wind
Light Breeze
1.4
UV Index
High
11.8h daylight

April

April is cool with highs of 24°C and lows of 9°C. Light rainfall and mostly sunny skies.

94 Ideal

Comfort

17°
Feels Like Cool
17°C
Temperature
24°
57%
Humidity
Humid

Weather

23 mm
Rainfall
3.4 m/s
Wind
Light Breeze
1.9
UV Index
Very High
12.9h daylight

May

May is mild with highs of 26°C and lows of 12°C. Almost no rain and clear sunny skies.

96 Ideal

Comfort

19°
Feels Like Mild
19°C
Temperature
12° 26°
55%
Humidity
Humid

Weather

7 mm
Rainfall
3.5 m/s
Wind
Light Breeze
2.2
UV Index
Extreme
13.8h daylight

June

June is mild with highs of 30°C and lows of 14°C. The driest month with just 1 mm and clear sunny skies.

98 Ideal

Comfort

22°
Feels Like Mild
22°C
Temperature
14° 30°
47%
Humidity
Comfortable

Weather

1 mm
Rainfall
3.4 m/s
Wind
Light Breeze
2.6
UV Index
Extreme
14.3h daylight

July

July is warm with highs of 33°C and lows of 16°C. The driest month with just 1 mm and clear sunny skies.

100 Ideal

Comfort

25°
Feels Like Warm
25°C
Temperature
16° 33°
41%
Humidity
Comfortable

Weather

1 mm
Rainfall
3.2 m/s
Wind
Light Breeze
2.6
UV Index
Extreme
14.1h daylight

August

August is the warmest month with highs of 34°C and lows of 17°C. Almost no rain and clear sunny skies.

100 Ideal

Comfort

25°
Feels Like Warm
25°C
Temperature
17° 34°
38%
Humidity
Comfortable

Weather

4 mm
Rainfall
3.0 m/s
Wind
Light Breeze
2.4
UV Index
Extreme
13.3h daylight

September

September is mild with highs of 32°C and lows of 15°C. Almost no rain and clear sunny skies.

99 Ideal

Comfort

24°
Feels Like Mild
24°C
Temperature
15° 32°
40%
Humidity
Comfortable

Weather

9 mm
Rainfall
2.8 m/s
Wind
Calm
1.8
UV Index
Very High
12.3h daylight

October

October is mild with highs of 28°C and lows of 12°C. Light rainfall and clear sunny skies.

95 Ideal

Comfort

20°
Feels Like Mild
20°C
Temperature
12° 28°
45%
Humidity
Comfortable

Weather

10 mm
Rainfall
2.6 m/s
Wind
Calm
1.2
UV Index
High
11.2h daylight

November

November is cool with highs of 23°C and lows of 8°C. Moderate rainfall (41 mm) and mostly sunny skies.

89 Excellent

Comfort

15°
Feels Like Cool
15°C
Temperature
23°
47%
Humidity
Comfortable

Weather

41 mm
Rainfall
2.5 m/s
Wind
Calm
0.7
UV Index
Moderate
10.2h daylight

December

December is the coolest month with highs of 20°C and lows of 5°C. Moderate rainfall (52 mm).

75 Very Good

Comfort

12°
Feels Like Cool
12°C
Temperature
20°
55%
Humidity
Humid

Weather

52 mm
Rainfall
2.4 m/s
Wind
Calm
0.5
UV Index
Low
9.7h daylight

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