DenvertoOntarioFlight Time
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 8-9/day departures, from 07:45 to 22:29 local time.
Plan this routeAt a glance
| Est. flight time | Distance | Route type | Captured freq. | Market |
|---|---|---|---|---|
| ~2h 16m Estimated from great-circle distance — no tracked flights yet. | 818 mi | Nonstop | 8-9/day From the current provider sample; confirm live timetables before booking. | Domestic |
Airlines on this route
Nonstop airlines from Denver to Ontario
Southwest Airlines, United Airlines, and Frontier Airlines operate 8-9/day flights from DEN to ONT.
- First departure
- 07:45
- Last departure
- 22:29
- Cadence
- ~hourly
- Scheduled departure times
- 21
| Airline | Captured daily freq. | Aircraft | Departures (local) |
|---|---|---|---|
| Southwest Airlines | 3-4/day | Boeing 737 · Seat map | 07:4507:50 |
Aircraft on this route
Flying the other way?
ONT to DEN flights — 8-9/day on 3 airlines →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 60 scheduled departures across 7 observed days; flight time is estimated from flying distance until this route has enough tracked flights for an observed average.
Route FAQ
How long is the flight from Denver to Ontario?
The estimated flight time from Denver (DEN) to Ontario (ONT) is about 2h 16m, based on the 818-mile flying distance.
How far is Denver from Ontario?
Denver (DEN) to Ontario (ONT) is about 818 miles by air.
Are there nonstop flights from Denver to Ontario?
Yes. Southwest Airlines, United Airlines, and Frontier Airlines fly nonstop from Denver (DEN) to Ontario (ONT), with 8-9/day departures.
Which airlines fly from Denver to Ontario?
Southwest Airlines, United Airlines, and Frontier Airlines fly nonstop from Denver (DEN) to Ontario (ONT).
What aircraft fly from Denver to Ontario?
The DEN–ONT route is flown with Airbus A320 family, Boeing 737.
Route hubs
Nearby airport options
Near Ontario
- SNA - Santa AnaJohn Wayne/Orange County Airport · 30 mi from ONTFlights to SNA
- BUR - BurbankBob Hope Airport · 44 mi from ONTFlights to BUR
- LAX - Los AngelesLos Angeles International Airport · 47 mi from ONTFlights to LAX