ONT to DEN (Ontario to Denver) Flights

Last Minute Flights from ONT to DEN

Price found within the past 7 days for the specified period. Click for updated prices.

OriginDestinationTravel DatesFlights From*
ONTDenverMay 3 to June 12$206
*Prices include taxes and fees

Cheapest ONT to DEN Flights

Price found within the past 7 days for the specified period. Click for updated prices.

OriginDestinationTravel DatesFlights From*
ONTDenverJuly 4 to July 4$101
ONTDenverMay 21 to May 24$158
ONTDenverMay 21 to May 31$167
ONTDenverJuly 1 to July 2$199
*Prices include taxes and fees
ONT to DEN Flight Details
Origin airport
Los Angeles - Ontario Intl.
Origin airport IATA code
ONT
Destination airport
Denver Intl.
Destination airport IATA code
DEN
Distance
816 mi

Frequently asked questions

What airlines fly direct from Ontario Airport to Denver Airport?
Check out United Airlines (UA). It operates 60 flights every month that jet straight from Ontario Airport to DIA airport. With 60 nonstop monthly services of its own on this journey, Frontier Airlines (F9) is another carrier to scope out.
How many flights are there from ONT to DEN?
Approximately 7 each day. If you’re in a big rush to fly to Denver, see if you can pick up a good last-minute deal from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Denver, CO (DEN-Denver Intl.) and then lock it in quick!
What is the flight distance from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Denver, CO (DEN-Denver Intl.)?
Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Denver, CO (DEN-Denver Intl.) is a short-haul flight of 820 miles (1,300 1). You’ll barely have enough time to settle into your seat before arriving in Denver.
How many morning flights are there from ONT to DEN?
Every week, 35 morning flights depart from ONT to DEN, with 14 offered by Frontier Airlines (F9). If you’d prefer to be on the plane as early as possible, F9’s first flight takes off at 12:55AM.
How many afternoon flights are there from ONT to DEN?
Every week, there are 19 afternoon and evening flights from ONT to DEN. If you’re hoping to book a ticket with United Airlines (UA), it operates 7 flights each week that depart after midday. The first one leaves the runway at 1:36PM.
What is the earliest departure time out of Ontario to Denver?
Fly out of ONT at 12:55AM and come in for landing at DEN at 3:19AM. This flight is the earliest you can take on this route.
What is the latest departure time out of Ontario to Denver?
The last flight is scheduled to depart ONT at 8:00PM and lands at DEN at 10:10PM. You’ll have plenty of time to prepare for this flight.
What is the average price from Ontario to Denver?
Round-trip journeys from ONT to DEN begin from around $101. Amazing deals get snapped up fast, so get set to click “book” when you spy a bargain. This price was available on Flights.com within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

Ontario to Denver Flights

Whether it’s for an obligation or the sake of your sanity, sometimes you need to get away. Maybe you need flights from Ontario to Denver to attend your cousin’s wedding, to pitch a business idea to your boss, or simply treat yourself to a mini vacation. Regardless of the reasons behind packing your bags and needing to find our cheapest flights from ONT to DEN, we’ve got you covered here at Flights.com.

We present you with some of the most affordable deals on airfare, so stop that Google flights search. We want you to spend less on your flight from Ontario to Denver, so you can spend more during your getaway. With Flights.com, you’ll find it simple to land airline tickets with itineraries matching your travel schedule. What’s more, we provide you with all the information you need to confidently make reservations on your family, business, or personal trip.