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DEN–ONT · Nonstop
Denver (Denver International Airport) to Ontario (Ontario International Airport).
The estimated flight time from Denver (DEN) to Ontario (ONT) is about 2h 16m, covering 818 miles. Southwest Airlines, United Airlines, and Frontier Airlines fly the route nonstop with 7-8/day departures, from 08:45 to 23:51 local time.
Plan this route| Est. flight time | Distance | Route type | Captured freq. | Market |
|---|---|---|---|---|
| ~2h 16m Estimated from great-circle distance — no tracked flights yet. | 818 mi | Nonstop | 7-8/day From the current provider sample; confirm live timetables before booking. | Domestic |
Southwest Airlines, United Airlines, and Frontier Airlines operate 7-8/day flights from DEN to ONT.
| Airline | Captured frequency | Aircraft | Departures (local) |
|---|---|---|---|
| Southwest Airlines | 3-4/day | Boeing 737 · Seat map | 08:4509:0009:0512:4512:5513:0515:0517:5018:0519:3020:4020:50 |
| United Airlines | 2-3/day | Airbus A320 family, Boeing 737 · Seat map | 11:2211:3019:2019:3023:51 |
| Frontier Airlines | 1-2/day | Airbus A320 family · Seat map | 08:4508:4908:5122:29 |
Methodology: airline, aircraft, terminal, and departure-time details come from a full week of published airline schedules for DEN, refreshed on a rolling basis. Frequency uses 52 scheduled departures across 7 observed days; flight time is estimated from flying distance until this route has enough tracked flights for an observed average.
The estimated flight time from Denver (DEN) to Ontario (ONT) is about 2h 16m, based on the 818-mile flying distance.
Denver (DEN) to Ontario (ONT) is about 818 miles by air.
Yes. Southwest Airlines, United Airlines, and Frontier Airlines fly nonstop from Denver (DEN) to Ontario (ONT), with 7-8/day departures.
Southwest Airlines, United Airlines, and Frontier Airlines fly nonstop from Denver (DEN) to Ontario (ONT).
The DEN–ONT route is flown with Airbus A320 family, Boeing 737.