Terminal 2
The larger of the two main terminals, with a six-lane security checkpoint that includes a lane for TSA PreCheck travelers. Aspire Lounge is here, along with the nursing room past security near Gate 206.
Ontario International Airport (ONT)
Ontario, California KONT #53 US airport by passengers
Ontario International Airport serves the Inland Empire of Southern California. Its two passenger terminals, Terminal 2 and Terminal 4, are the main commercial terminals, with an international arrivals facility next to them.
- FAA status
- No delays reported Updated 2 min ago
- Weather now
- VFR 70°F Observed 3 h ago
- Late departures
- 23.0%May 2026 to July 2026
- Security line
- No recent reportsAdd yours
ONT at a glance
ONT has two passenger terminals, Terminal 2 and Terminal 4, each with its own security checkpoint. Both checkpoints open at 3:30 a.m., and the Terminal 2 checkpoint closes at 12:45 a.m.
Parking is cashless and does not offer free parking, with self-parking from $20 to $35 per day. The Aspire Lounges in both terminals cost $48.85 per adult to enter. Free Wi-Fi covers both terminals.
Main airlines: Passenger airlines use Terminal 2 and Terminal 4. Check the airport site for the current list of airlines.
FAA delay status for ONT
The FAA is not reporting a ground stop, ground delay program or other delay at ONT right now.
Source: FAA National Airspace System Status, checked 2 min ago. Airline-specific delays are not shown here.
Current conditions at ONT
VFR
70°F21°C
Good visibility and high cloud base. Normal operations are typical.
- Wind
- Calm
- Visibility
- 10+ mi
- Clouds
- OVC 18,000 ft
- Ceiling
- 18,000 ft
- Pressure
- 29.68 inHg
METARMETAR KONT 101153Z 00000KT 10SM OVC180 21/16 A2968 RMK AO2 SLP031 T02110156 10239 20211 56011
Source: NOAA Aviation Weather Center. Observed 3 h ago.
Full weather, TAF, forecast and runways →
On-time performance at ONT
Based on 6,979 departures from May 2026 to July 2026. A flight counts as late when it leaves 15 or more minutes after schedule.
23.0%Departures late
26.9%Arrivals late
0.84%Cancelled
16.3 minAverage departure delay
| Airline | Departures | Late |
|---|---|---|
| Southwest Airlines | 3,048 | 28.2% |
| American Airlines | 889 | 19.0% |
| Frontier Airlines | 695 | 26.9% |
| United Airlines | 609 | 21.5% |
| Alaska Airlines | 591 | 16.1% |
| SkyWest Airlines | 536 | 15.7% |
Source: Bureau of Transportation Statistics, On-Time Performance of reporting carriers. Smaller regional carriers and some airlines are not included.
Late departures by month
Terminals
Terminal 4
The second main terminal, with its own checkpoint. The airport is adding a dedicated PreCheck lane here, and Aspire Lounge is also available. The nursing room is past security near Gate 408.
International Arrivals Terminal
The federal inspection facility for international arrivals. Lot 1 is the paid lot for international arrivals travelers, and shuttle service is not scheduled from this lot.
Moving between terminals
Terminal 2 and Terminal 4 are separate buildings, each with its own checkpoint. Check which terminal your flight uses before you park. The Ontario-USO lounge in the historic Terminal 1 has a free shuttle from Terminals 2 and 4.
Getting to and from ONT
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Taxi
Taxis
Taxi ranks are in front of every terminal on the outer island. Bell Cab is the only taxi company the airport works with. Dispatch is (909) 884-1111. Airport taxis are not wheelchair accessible.
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Rideshare
Uber and Lyft
Rideshare passengers are dropped off and picked up at the curb of their terminal. The airport estimates trips to downtown Ontario at $15 to $20, to Riverside at $30 to $35, and to downtown Los Angeles at $80 to $100. Actual fares vary by time and traffic.
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Limo
Limousines and car services
Limousines must be booked in advance with the operator. The airport lists several car services with good guest reviews, and they meet passengers at their terminal.
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Shuttle
Parking shuttles
Lots 5 and 6 are served by shuttles that run to Terminals 2 and 4. Lot 1 has no scheduled shuttle, so call (909) 937-1240 to request a pickup.
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Hotel shuttle
Hotel shuttles
Holiday Inn Express & Suites Ontario Airport lists an ONT airport shuttle, and Embassy Suites by Hilton Ontario Airport offers a free roundtrip shuttle. Confirm the schedule with the hotel before you book.
Tips for ONT
- Pre-book parking to get 10% off, and use promo code DECADE if you park in Lots 3, 5 or 6 before November 1, 2026.
- Lots 5 and 6 are the best value for long trips, with a shuttle and a short walk to Terminal 4.
- Book the Aspire Lounge in advance at aspirelounges.com, since walk-up entry costs $48.85 per adult.
- The Terminal 2 security checkpoint closes at 12:45 a.m., so plan for late departures.
Frequently asked questions
How much does parking cost at ONT?
Lot 1 is $6 for up to one hour and $20 for up to 24 hours. General lots in front of Terminals 2 and 4 start at $10 for the first hour, and the daily rate is $30. Premium lots are $35 per day. Lot 3 is $25 per day, and Lots 5 and 6 are $20 per day with a shuttle. Valet is $40 per day.
Does ONT have free parking?
No. The airport says it does not offer free parking. Lots 5 and 6 are the cheapest option at $20 per day.
Is there free Wi-Fi at ONT?
Yes. Free Wi-Fi covers Terminals 2 and 4, including ticket lobbies, gates, restaurants, lounges and baggage claim. No password or fee is required.
Does ONT have a lounge?
Yes. Aspire Lounges operate in Terminal 2 and Terminal 4 from 5 a.m. to midnight. Entry costs $48.85 per adult, and eligible American Express cards, Priority Pass and DragonPass are accepted.
Does ONT have TSA PreCheck?
Yes. Terminal 2 has a six-lane checkpoint with a dedicated PreCheck lane, and Terminal 4 is adding one. You can also enroll in PreCheck onsite with no appointment.
What time does security open at ONT?
Both terminal checkpoints open at 3:30 a.m. Terminal 2 closes at 12:45 a.m., and Terminal 4 closes at 11:45 p.m.
How do I get a taxi at ONT?
Taxi ranks are in front of every terminal on the outer island. Bell Cab is the only taxi company the airport works with, at (909) 884-1111. Airport taxis are not wheelchair accessible.
Which hotels near ONT have airport shuttles?
Holiday Inn Express & Suites Ontario Airport lists an ONT airport shuttle, and Embassy Suites by Hilton Ontario Airport offers a free roundtrip shuttle. Confirm the schedule with each hotel before you book.
How busy is ONT?
About 3,473,874 passengers boarded flights at Ontario International Airport in 2025, according to FAA enplanement data. That ranks it number 53 among US airports.
How often are flights late at ONT?
Over May 2026 to July 2026, 23.0% of departures at ONT left 15 or more minutes late, and 0.84% of flights were cancelled (Bureau of Transportation Statistics).
Guide content last reviewed October 9, 2026. Report a correction