Denver International Airport (DEN) is the origin airport and Ontario International Airport (ONT) is the destination airport.
DEN and ONT are approximately 818 miles apart by great-circle distance.
Yes. Roame's current schedule feed shows nonstop service from DEN to ONT.
Airlines represented in the current schedule are Air Canada (AC), Frontier Airlines (F9), United Airlines (UA), Southwest Airlines (WN) and Volaris (Y4).
Aircraft listed in the current schedule include Airbus A320 (320), Airbus A321 (321), Airbus A320neo (32N), Airbus A321neo (32Q), Boeing 737-800 (738), Boeing 737-900 / Boeing 737-900ER (739), Boeing 737-800 Winglets (73H), Boeing 737 MAX 8 (7M8), 7S7 and JET.