Flights
Hotels
From
To
1 traveler
Unsupported Browser!
Find Flights
Finding cheap flights is simple. More than 36 million people last year saved hundreds by using our flights tool.
Flights
Hotels
Round-trip
One-way
1 traveler
Unsupported Browser!
Find Flights
Finding cheap flights is simple. More than 36 million people last year saved hundreds by using our flights tool.

Cheap Flights from Denver to Ontario, CA, United States - DEN to ONT Last modified: May 26, 2016 12:58 PM

Popular flights from Denver to Ontario Last modified: May 26, 2016 12:58 PM

We’ve got the inside scoop on finding the best time to fly for the best price. Not sure when to travel for your next vacation? Find details below on when-to-fly and when-to-buy.

American Airlines
Departure Date Return Date Lowest Price
Aug 25, 2016 Aug 28, 2016 $237
Aug 31, 2016 Sep 7, 2016 $237
United Airlines
Departure Date Return Date Lowest Price
Sep 19, 2016 Sep 27, 2016 $210

How Much Does it Cost to Fly from Denver to Ontario (DEN to ONT)?

We have collected flight cost data from across the web for travel from Denver to Ontario, and have found the average flight price for this trip to be $275.

When Can I Buy the Cheapest Flight from Denver to Ontario (DEN to ONT)?

Airlines can adjust prices for plane tickets from Denver to Ontario based on the day and time that you decide to book your flight. We have collected data from all airlines, and have discovered that the best days to book flights are Tuesdays, Wednesdays, and Saturdays. Read our article to find more information about the best time to buy airline tickets.

How far in advance should you book flights from Denver to Ontario

The chart below shows up-to-date information regarding how far in advance a flight from Denver to Ontario should be booked.

Non Stop versus 1-Stop
Advanced PurchaseNon StopOne Stop
< 7 days $1,177 $572
7-14 days $493 $387
14-21 days $477 $310
21-30 days $380 $289
30-60 days $380 $274
60-90 days $477 $264
90+ days $245 $210

Cheapest Day To Fly from Denver to Ontario

The chart below shows up-to-date information regarding the cheapest days to fly from Denver to Ontario.

Monday Tuesday Wednesday Thursday Friday Saturday Sunday
$264 $274 $264 $264 $289 $284 $284

Lowest Fares Chart By Month from Denver to Ontario

The chart below shows the lowest fare by month when flying from Denver to Ontario.

Month Origin Destination Carrier Depart Date Return Date Stops Price
May Denver Ontario United 5/27/16 5/29/16 2 $674
June Denver Ontario American 6/26/16 7/2/16 1 $284
July Denver Ontario United 7/19/16 7/25/16 1 $274
August Denver Ontario American 8/25/16 8/28/16 1 $237
September Denver Ontario United 9/19/16 9/27/16 1 $210
October Denver Ontario United 10/31/16 11/3/16 1 $237
November Denver Ontario United 11/2/16 11/7/16 1 $214
December Denver Ontario American 12/20/16 12/29/16 1 $252

Non-Stop vs Connecting Flights from Denver to Ontario (DEN to ONT)

Your Denver to Ontario flight can be significantly cheaper by choosing a multi-stop airline ticket. Although these connecting flights sacrifice some convenience, on average, travelers save 20%-60% when they choose to fly multi-stop versus a direct flight.

The average price for connecting flights from Denver to Ontario is $274.

The average price for non-stop flights from Denver to Ontario is $380.

The chart below shows up to date information regarding non-stop flights from Denver to Ontario.

Nonstop Flight Details from Denver to Ontario
CarrierMonTueWedThuFriSatSunEarliest FlightLatest Flight
United 2 2 2 2 2 1 1 11:30 22:05

Round Trip vs One Way Flights from Denver to Ontario (DEN to ONT)

We have found that there is often no price difference between buying a round trip flight versus a one way flight. Increased flexibility is the main benefit when it comes to buying a one way flight from Denver to Ontario. However, booking a round trip flight can be a simpler process. You can compare round trip and one way flights by using our flight comparison.

The average price for one way flights from Denver to Ontario is $132.

The average price for round trip flights from Denver to Ontario is $274.

Denver to Ontario Flight Questions

Below are some common questions that asked about this flight route:

Question: How long is a direct flight from Denver to Ontario?
Answer: The average Denver to Ontario flight time is 2 hours and 18 minutes.
Question: How many miles are there between Denver and Ontario?
Answer: The distance from Denver to Ontario is 817 miles.
Question: How common are direct flights from Denver to Ontario?
Answer: There are 12 direct flights from Denver to Ontario.
Question: What is the most popular airline for non-stop flights from Denver to Ontario?
Answer: United Airlines provides 100% of the non-stop flights between Denver and Ontario.
Question: What are the most popular connecting cities when flying from Denver to Ontario?
Answer: Phoenix, AZ

Airlines Flying from Denver to Ontario (DEN to ONT) Number of flights searched: 179Last modified: May 26, 2016 12:58 PM

Below are the different airlines that fly from Denver to Ontario with the average price of their plane tickets. Just remember that different airlines offer different levels of comfort and service, so consider convenience when choosing your airline.

Below is the full flight schedule summary of the next 30 days for flights from Denver to Ontario.

Denver to Ontario
Airline Connections Mon Tue Wed Thu Fri Sat Sun
American PHX X X X X X X X
Alaska SEA X X X X X X X
Alaska SEA / PDX X X X X X X X
Delta SLC X X X X X X X
United - X X X X X X X
United SFO X X X X X X X
Southwest - X X X X X X X
Southwest PHX X X X X X X X

Airports for Your Route

These pages contain information about the major airports in Denver and Ontario, so you can feel comfortable knowing how to get around whether you are about to take off or you just landed.

Cheap Domestic Flights from Denver - DEN

FlightsAirlineLowest Price
Denver to Los Angeles American, Alaska, Frontier, Spirit, United, Virgin America $128
Denver to Santa Ana American, Frontier, United $128
Denver to Las Vegas American, Alaska, Frontier, Allegiant, Spirit, United $91
Denver to Burbank American, United $210
Denver to Long Beach American, United $255
Denver to San Diego American, Alaska, Frontier, Spirit, United, Virgin America $117
Denver to Palm Springs American, Alaska, United, Virgin America $379
Denver to Phoenix American, Alaska, Frontier, Spirit, United $75
Denver to San Francisco American, Alaska, Frontier, United, Virgin America $158
Denver to Dallas - Ft Worth American, Alaska, Frontier, Spirit, United $77
Denver to Santa Barbara American, Alaska, United $350
Denver to Chicago American, Alaska, Frontier, Spirit, United $117
Denver to Seattle American, Alaska, Frontier, United, Virgin America $158
Denver to Atlanta American, Alaska, Frontier, Spirit, United $148

Cheap Domestic Flights to Ontario - ONT

FlightsAirlineLowest Price
Colorado Springs to Ontario American, Alaska, United $347
Montrose to Ontario American, United Check Dates
Hayden - Steamboat to Ontario American, United $728
Aspen to Ontario American, Alaska, United Check Dates
Vail to Ontario American, United Check Dates
Colorado Springs to Los Angeles United $347
Aspen to Los Angeles American, Alaska, United $498
Vail to Los Angeles American, Alaska, United $412
Colorado Springs to Santa Ana American, Alaska, United $318
Hayden - Steamboat to Los Angeles United $474
Montrose to Los Angeles American, United $275
Colorado Springs to Long Beach American, Alaska, United Check Dates
Gunnison to Los Angeles Alaska, United $458
Colorado Springs to Burbank American, Alaska, United $456
Aspen to Santa Ana Alaska, United $573
Colorado Springs to San Diego American, Alaska, United $248
Cheap Flights from Denver to Ontario, CA, United States, from $210 Round trip from DEN to ONT