- Home
- Flights
- Flights from Ontario
- Ontario to Denver
Cheap flights from Ontario to Denver from US$32
Southwest Airlines, Frontier Airlines and United Airlines fly nonstop from Ontario to Denver, about 52 flights a week. The flight takes around 2h 21m, and the cheapest one-way fare we found recently is US$32 on 12 Nov.
Direct flights available ~52 flights a week 2h 21m Cheapest in November Prices checked 13 days ago
Ontario to Denver at a glance
Cheapest one-wayUS$32Frontier Airlines · nonstop · Thu 12 NovCheapest returnUS$125Sat 9 Jan – Thu 14 JanFastest flight2h 21mFrontier Airlines · nonstop
Nonstop flights52/wkSouthwest Airlines, Frontier Airlines, United Airlines
Airlines flying nonstop from Ontario to Denver
3 airlines on this route, about 52 flights a week in total (observed over the last 4 weeks).
Cheapest dates from Ontario to Denver
The lowest one-way fares found recently, cheapest first. Prices change; click through for the live fare.
Good to know
- Distance
- 1,315 km817 miles
- Flight time
- 2h 21mfastest found
- Time difference
- +1hDenver vs Ontario
- Currency in Denver
- USD
- Airports
- ONT → DEN
Flights from Ontario to Denver: questions answered
How much is a flight from Ontario to Denver?
The cheapest one-way fare we found recently is US$32, nonstop, departing in November. Return trips start from US$125. Prices change constantly, so search your dates for the live fare.
Are there direct flights from Ontario to Denver?
Yes. Southwest Airlines, Frontier Airlines and United Airlines fly this route nonstop, with about 52 flights a week in each direction.
How long is the flight from Ontario to Denver?
A nonstop flight covers 1,315 km and takes around 2h 21m.
Which airlines fly from Ontario to Denver?
Southwest Airlines, Frontier Airlines and United Airlines operate nonstop flights on this route.
Which airports serve Ontario and Denver?
Ontario: Ontario International Airport (ONT). Denver: Denver International Airport (DEN).
What is the time difference between Ontario and Denver?
Denver is 1 hour ahead of Ontario.





