Home >> Fares From A City >> Denver, CO >> Denver, CO (DEN) To Ontario, CA (ONT)
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HOW TO FIND THIS FARE
  • AIRLINES
    US Airways
  • ADVANCE PURCHASE REQUIRED
    19 DAYS BEFORE TRAVEL
  • DAYS AVAILABLE FOR TRAVEL
    Sat
  • TRAVEL STARTING
    Sat, September 19, 2015
  • TRAVEL ENDING
    Sat, September 26, 2015
Found Today by a Traveler Search
Fare Notes:
Lowest fare found for travel within the next 30 days.

Seats are not available on all flights or all dates of travel. You may need to have flexible travel dates to find this fare. Fares for travel on holidays may be higher.

All mandatory taxes/fees are included in the price. Tax-inclusive fare may be a few dollars higher or lower depending on the airport you connect through, if any. Baggage fees, if applicable, and other optional fees are not included. Our Dealhounds found this airfare using flexible date search. This means we searched a range of dates to find you the best price.

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Reviews for Denver to Ontario
1 Traveler Reviews
"Will not use cheapoair again."
Flight from Denver to Ontario
Airline: United
RT/OW: roundtrip
Date of Flight: August 2010
Seat Class: economy
Check-in Experience
In-flight Service
Seat Comfort
I went through cheapoair to book this flight.I did this because they offered continental airlines. My itinerary said continental. When we got to the continental gate they said they did not fly to Ontario, they sent us to United, which was on the other side of the airport. I do not like United so that's why I went continental. Sure enough they proved me right on why I don't fly United. They would not give me seat assignments at the check-in, they said I would get them at the gate. After walking with a baby to the last gate they offered which seemed like about a mile, I went to get my seat assignment and was told to sit down and wait until I was called. We got there an hour early and after they started loading the plane they finally gave us our seat assignments. They didn't have us boarding at the same time. Even the infant and her Mother were different boarding times. But after we got off the ground, the flight attendants and crew were some of the nicest we've had. Coming home, we were scheduled to leave at 11:03a.m. the board said "on time" with no one at the gate and no announcement until 11:45a.m. when the plane finally arrived. We finally took off around 12:15p.m. with the board still saying 11:03a.m. on time! We have use airfare watchdog since you were digital city and have always been happy with your hard work in finding us great deals. Thank you. However we will not use cheapoair again. Also Thank You for asking, Cheapoair never asked.
Found by other travelers: Denver, CO (DEN) to Ontario, CA (ONT)
$330
Flight from Denver to Ontario (DEN - ONT)
Fri, Jul 18 - Mon, Jul 21
Delta
$330
Flight from Denver to Ontario (DEN - ONT)
Sat, Jun 7 - Thu, Jun 12
US Airways
$330
Flight from Denver to Ontario (DEN - ONT)
Tue, Jun 10 - Thu, Jun 12
US Airways
$356
Flight from Denver to Ontario (DEN - ONT)
Sun, Jul 20 - Wed, Jul 23
United
$380
Flight from Denver to Ontario (DEN - ONT)
Thu, Jun 12 - Sun, Jun 15
US Airways
$310
Flight from Denver to Ontario (DEN - ONT)
Wed, Jun 18 - Sun, Jun 22
US Airways
$448
Flight from Denver to Ontario (DEN - ONT)
Thu, Jul 31 - Sun, Aug 3
United
$280
Flight from Denver to Ontario (DEN - ONT)
Tue, Jun 24 - Wed, Jun 25
US Airways
$290
Flight from Denver to Ontario (DEN - ONT)
Mon, Jun 16 - Wed, Jun 18
US Airways
$310
Flight from Denver to Ontario (DEN - ONT)
Mon, Jun 16 - Sat, Jun 21
US Airways
There are approximately 160 flights covering the route from Denver International Airport in Denver to Ontario International Airport in Ontario, provided by as many as 7 airlines.
The following airlines often offer cheap flights from Denver to Ontario
Continental
Southwest
United
Frontier
Great Lakes Aviation
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