Cheap flights from Ontario to Denver

Find cheap Denver to Ontario flights with our free search service. Compare all available fares for direct or connection flights from Denver to Ontario.

Round-trip
  • One-way
  • Round-trip
1 adult
Adults 12 years or over
1
Children 2-11 years
0
Infants 0-23 months
0
Cancel Done
Economy Class
  • Economy Class
  • Business Class
Done
Done

Ontario to Denver flight schedules

Flight Departure Date Arrival Date Price Duration Number of stops Updated
Ontario (LAX) - Denver (DEN) 2026-03-07 2026-03-07 57 USD 5 hours 16 minutes Direct 2026-01-13T00:46:16
Ontario (LAX) - Denver (DEN) 2026-02-07 2026-02-07 60 USD 5 hours 17 minutes Direct 2026-01-13T01:03:01

Ontario to Denver flight status

Flight Origin Destination Departure Arrival Equip
AC5423 Ontario (ONT) Denver (DEN) 5:05 a.m. 8:24 a.m. Boeing 737-800
UA2063 Ontario (ONT) Denver (DEN) 6:15 a.m. 8:19 a.m. Boeing 737-900
F91691 Ontario (ONT) Denver (DEN) 9:08 a.m. 12:02 p.m. A20N
UA566 Ontario (ONT) Denver (DEN) 4:03 p.m. 7:30 p.m. Boeing 737-800
WN1443 Ontario (ONT) Denver (DEN) 10:20 a.m. 2:25 p.m. B738
UA2156 Ontario (ONT) Denver (DEN) 12:35 p.m. 2:59 p.m. Airbus A319
UA2444 Ontario (ONT) Denver (DEN) 9:05 a.m. 12:24 p.m. Airbus A320-100/200
UA2109 Ontario (ONT) Denver (DEN) 8:03 p.m. 10:35 p.m. Airbus A320-100/200
F91539 Ontario (ONT) Denver (DEN) 10:08 a.m. 12:46 p.m. A320
UA789 Ontario (ONT) Denver (DEN) 9:35 a.m. 2:59 p.m. Boeing 737-900
5X806 Ontario (ONT) Denver (DEN) 1:40 a.m. 4:38 a.m. MD11
AC3961 Ontario (ONT) Denver (DEN) 1:24 p.m. 4:43 p.m. Airbus A320-100/200
UA350 Ontario (ONT) Denver (DEN) 8:15 p.m. 11:30 p.m. Airbus A320
UA2317 Ontario (ONT) Denver (DEN) 8 p.m. 9:59 p.m. Boeing 737 Max 8
UA1451 Ontario (ONT) Denver (DEN) 9:53 a.m. 3:15 p.m. Boeing 737-800
WN2255 Ontario (ONT) Denver (DEN) 6:50 a.m. 7:50 a.m. B737
AS2156 Ontario (ONT) Denver (DEN) 7:30 a.m. 9 a.m. Airbus A320
OO5547 Ontario (ONT) Denver (DEN) 5:50 p.m. 7:03 p.m. CRJ
Y42150 Ontario (ONT) Denver (DEN) 5:35 a.m. 7:21 a.m. None
UA1824 Ontario (ONT) Denver (DEN) 10:41 a.m. 12:32 p.m. Boeing 737-900
F91500 Ontario (ONT) Denver (DEN) 6:45 a.m. 10:06 a.m. Airbus A320neo
UA669 Ontario (ONT) Denver (DEN) 1 p.m. 5 p.m. A319
WN3617 Ontario (ONT) Denver (DEN) 6:10 p.m. 8:35 p.m. B737
5X808 Ontario (ONT) Denver (DEN) 12:10 a.m. 3:07 a.m. B752
5X852 Ontario (ONT) Denver (DEN) 12:50 a.m. 2:51 a.m. B763
F91262 Ontario (ONT) Denver (DEN) 7:06 p.m. 10:33 p.m. Airbus A321neo
AC5708 Ontario (ONT) Denver (DEN) 7:50 a.m. 9:35 a.m. None
5X2816 Ontario (ONT) Denver (DEN) 6:34 p.m. 7:53 p.m. B752
F9976 Ontario (ONT) Denver (DEN) 7:46 p.m. 11:10 p.m. A20N
F92567 Ontario (ONT) Denver (DEN) 10:01 p.m. 12:03 a.m. A20N
F9972 Ontario (ONT) Denver (DEN) 4:08 p.m. 6:51 p.m. Airbus A320-214
AS1849 Ontario (ONT) Denver (DEN) 5:30 a.m. 8:48 a.m. Boeing 739
F92691 Ontario (ONT) Denver (DEN) 8:10 p.m. 10:46 p.m. A20N
5X2306 Ontario (ONT) Denver (DEN) 1:40 a.m. 4:30 a.m. McDonnell Douglas MD-11F
F9370 Ontario (ONT) Denver (DEN) 12:39 a.m. 4:06 a.m. A20N
F9372 Ontario (ONT) Denver (DEN) 12:35 p.m. 3:55 p.m. 320
F9368 Ontario (ONT) Denver (DEN) 8:25 p.m. 11:46 p.m. A20N
WN6911 Ontario (ONT) Denver (DEN) 12:30 p.m. 7:55 p.m. B737
5X3808 Ontario (ONT) Denver (DEN) 3:45 a.m. 6:42 a.m. Boeing 757-24APF
Y42165 Ontario (ONT) Denver (DEN) 3:01 p.m. 3:57 p.m. Airbus A320-251N
5X4856 Ontario (ONT) Denver (DEN) None None B763
Y42253 Ontario (ONT) Denver (DEN) 7:56 a.m. 12:36 p.m. None
Y42375 Ontario (ONT) Denver (DEN) 8:15 a.m. 11:31 a.m. None
Y42458 Ontario (ONT) Denver (DEN) 8:03 p.m. 11:24 p.m. None
F97310 Ontario (ONT) Denver (DEN) None None A20N
F97370 Ontario (ONT) Denver (DEN) None None A320