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Cheap Flights from Ontario to Denver, CO, United States - ONT to DEN

Popular flights from Ontario to Denver

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 30, 2016 $198
United Airlines
Departure Date Return Date Lowest Price
Aug 25, 2016 Aug 30, 2016 $198

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

We have collected flight cost data from across the web for travel from Ontario to Denver, and have found the average flight price for this trip to be $247.

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

Airlines can adjust prices for plane tickets from Ontario to Denver 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 Ontario to Denver

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

Non Stop versus 1-Stop
Advanced PurchaseNon StopOne Stop
< 7 days $353 $307
7-14 days $353 $274
14-21 days $278 $257
21-30 days $413 $259
30-60 days $310 $220
60-90 days $322 $249
90+ days $198 $202

Cheapest Day To Fly from Ontario to Denver

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

Monday Tuesday Wednesday Thursday Friday Saturday Sunday
$258 $244 $256 $220 $258 $239 $258

Lowest Fares Chart By Month from Ontario to Denver

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

Month Origin Destination Carrier Depart Date Return Date Stops Price
May Ontario Denver United 5/21/16 5/22/16 1 $257
June Ontario Denver United 6/2/16 6/7/16 1 $220
July Ontario Denver American 7/26/16 8/3/16 1 $249
August Ontario Denver American 8/25/16 8/30/16 0 $198
September Ontario Denver American 9/24/16 9/27/16 1 $210
October Ontario Denver United 10/21/16 10/24/16 1 $239
November Ontario Denver American 11/3/16 11/6/16 1 $219
December Ontario Denver American 12/22/16 12/25/16 1 $219

Cheapest Weekend Non-Stop Flights for the Next 30 Days from Ontario to Denver

If you're ready to take a trip in the next 30 days and want to fly on the weekend, you might be wondering which weekend is the cheapest to fly. The chart below shows up-to-date data regarding weekend flight prices from Ontario to Denver.

Next 30 Days

SunMonTueWedThuFriSat
1 2 3 4 5 6 7
$353
8 9 10 11 12 13 14
$353 $384
15 16 17 18 19 20 21
$384 $278
22 23 24 25 26 27 28
$278 $465
29 30 31 1 2 3 4
$465 $413
5 6 7 8 9 10 11
$413

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

Your Ontario to Denver 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 Ontario to Denver is $229.

The average price for non-stop flights from Ontario to Denver is $374.

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

Nonstop Flight Details from Ontario to Denver
CarrierMonTueWedThuFriSatSunEarliest FlightLatest Flight
United 2 2 2 2 2 1 2 05:46 13:27

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

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 Ontario to Denver. 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 Ontario to Denver is $128.

The average price for round trip flights from Ontario to Denver is $229.

Ontario to Denver Flight Questions

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

Question: How long is a direct flight from Ontario to Denver?
Answer: The average Ontario to Denver flight time is 2 hours and 23 minutes.
Question: How many miles are there between Ontario and Denver?
Answer: The distance from Ontario to Denver is 817 miles.
Question: How common are direct flights from Ontario to Denver?
Answer: There are 12 direct flights from Ontario to Denver.
Question: What is the most popular airline for non-stop flights from Ontario to Denver?
Answer: United Airlines provides 100% of the non-stop flights between Ontario and Denver.
Question: What are the most popular connecting cities when flying from Ontario to Denver?
Answer: Phoenix, AZ

Airlines Flying from Ontario to Denver (ONT to DEN)

Below are the different airlines that fly from Ontario to Denver 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 Ontario to Denver.

Ontario to Denver
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 PDX / SEA 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 SJC X X X X X X X

Airports for Your Route

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

Cheap Domestic Flights to Denver - DEN

FlightsAirlineLowest Price
Los Angeles to Denver American, Alaska, Frontier, Spirit, United, Virgin America $87
Las Vegas to Denver American, Alaska, Frontier, Spirit, United $91
San Diego to Denver American, Alaska, Frontier, Spirit, United, Virgin America $117
Santa Ana to Denver American, Alaska, Frontier, United $108
Burbank to Denver American, United $192
Long Beach to Denver American, Alaska, United $250
Santa Barbara to Denver American, Alaska, United $367
Palm Springs to Denver American, United, Virgin America $338
Bakersfield to Denver American, United $477
Yuma to Denver American, Alaska $243
San Luis Obispo to Denver American, United $370
Palomar to DenverCheck Dates
Los Angeles to Las Vegas American, Spirit, United, Virgin America $70
Los Angeles to Chicago American, Alaska, JetBlue, Frontier, Spirit, United, Virgin America $148
Los Angeles to New York American, Alaska, JetBlue, Frontier, Spirit, Sun Country, United, Virgin America $210
Los Angeles to Dallas - Ft Worth American, Alaska, Frontier, Spirit, United, Virgin America $99
Los Angeles to Colorado Springs American, United $341
Los Angeles to Phoenix American, Alaska, Spirit, United, Great Lakes $76
Los Angeles to Atlanta American, Alaska, Frontier, Spirit, United $231
Las Vegas to Los Angeles American, Alaska, Spirit, United, Virgin America $70
Los Angeles to San Francisco American, Alaska, United, Virgin America $129
Los Angeles to Aspen American, Alaska, United $445
Los Angeles to Houston American, Alaska, Spirit, United $197
Las Vegas to Colorado Springs American, Frontier, United $127
San Diego to Dallas - Ft Worth American, Alaska, Spirit, United, Virgin America $107
Las Vegas to Dallas - Ft Worth American, Alaska, Frontier, Spirit, United, Virgin America $81
Los Angeles to Salt Lake City American, Alaska, United $176
San Diego to Chicago American, Alaska, Frontier, Spirit, United, Virgin America $182
Las Vegas to Chicago American, Alaska, Frontier, Spirit, United, Virgin America $97
San Diego to Colorado Springs American, Alaska, Frontier, Spirit, United $242
Cheap Flights from Ontario to Denver, CO, United States, from $198 Round trip from ONT to DEN