Ontario International Airport (ONT)
Ontario, US
Ontario International Airport (ONT) serves Ontario, US with 14 destinations operated by 4 airlines. 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 7.7/100. Major airlines operating from this airport include 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 | 1 |
| Sacramento | ONT → SMF | 1 |
| Salt Lake City | ONT → SLC | 1 |
| San Francisco | ONT → SFO | 1 |
| San Jose | ONT → SJC | 1 |
| Seattle | ONT → SEA | 1 |
Frequently asked questions about Ontario International Airport
4 airlines operate from Ontario International Airport (ONT), including American Airlines, Delta Air Lines, Southwest Airlines, United Airlines.
No ATFM delay data is currently available for Ontario International Airport (ONT).
Ontario International Airport (ONT) serves 14 destinations, operated by 4 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.
Delays at Ontario International Airport (ONT) can be caused by adverse weather, ATC restrictions, staff strikes, technical issues, or airspace congestion.
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 7.7/100. 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.
