Ontario International Airport (ONT)
Ontario, US
On-time = departed within 15 min of schedule. Based on 6,148 recent tracked flights.
Ontario International Airport (ONT) serves Ontario, US with 14 destinations operated by 5 airlines. Departures are on time 84.3% of the time, with an average departure delay of 7.1 minutes and a 0.6% cancellation rate (6,148 recent flights). According to FlightGuard's analysis based on 9 real-time factors (weather, ATC delays, NOTAMs, strikes, fuel prices, airline OTP, geopolitical events, recent trends, and historical data), the average risk score for flights from Ontario International Airport is 7.8/100. Major airlines operating from this airport include Alaska Airlines, American Airlines, Delta Air Lines, Southwest Airlines, United Airlines. Check your flight risk in real time by entering your flight number on FlightGuard for a personalized analysis before departure.
Airlines from Ontario International Airport
Destinations from Ontario International Airport (ONT)
14 destinations served from this airport.
| Destination | Route | Airlines |
|---|---|---|
| Chicago | ONT → MDW | 1 |
| Dallas-Fort Worth | ONT → DFW | 1 |
| Denver | ONT → DEN | 2 |
| Guadalajara | ONT → GDL | 1 |
| Houston | ONT → IAH | 1 |
| Las Vegas | ONT → LAS | 1 |
| Oakland | ONT → OAK | 1 |
| Phoenix | ONT → PHX | 2 |
| Portland | ONT → PDX | 2 |
| Sacramento | ONT → SMF | 1 |
| Salt Lake City | ONT → SLC | 1 |
| San Francisco | ONT → SFO | 1 |
| San Jose | ONT → SJC | 1 |
| Seattle | ONT → SEA | 2 |
Frequently asked questions about Ontario International Airport
5 airlines operate from Ontario International Airport (ONT), including Alaska Airlines, American Airlines, Delta Air Lines, Southwest Airlines, United Airlines.
Departures from Ontario International Airport (ONT) are on time 84.3% of the time, with an average departure delay of 7.1 minutes and a 0.6% cancellation rate, based on 6,148 recent flights.
Ontario International Airport (ONT) serves 14 destinations, operated by 5 airlines.
Enter your flight number on FlightGuard to get a real-time risk analysis based on 9 factors, including weather, ATC delays, NOTAMs, strikes and airline punctuality.
The main causes of delays at Ontario International Airport (ONT) are: atfm. Delays can be related to weather conditions, airspace capacity, strikes, or airline operational issues.
Airline punctuality varies over time. On FlightGuard you can check the specific risk score for your flight, which takes into account the airline's historical on-time performance among the 9 factors analyzed.
We recommend checking your flight risk at least 2-3 days before departure and again the day before. FlightGuard updates data every 15 minutes, so the closer you get to your flight date, the more accurate the analysis.
The average risk score for flights from Ontario International Airport is 7.8/100. A score below 15 indicates low risk, 15-34 medium risk, and 35 or above high risk. Check your specific flight for a detailed analysis.
