Airlines with flights from Denver to Ontario

There are three airlines with scheduled flights between DEN and ONT. Southwest, United and Frontier Airlines has non-stop flights from Denver International to Ontario International Airport and the flight time is 2 hours and 25 minutes.

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Schedules

Non-stop with Southwest Airlines

  • Total flight time: 2 hours and 25 minutes
  • Low-cost airline
  • Denver is a Southwest Airlines focus city (Operating base).
  • 25 flights per week
DEN
Direct
ONT

The timetable & schedule information was updated at 2024-12-13

Non-stop with United Airlines

  • Total flight time: 2 hours and 26 minutes
  • Denver is a United Airlines hub.
  • 17 flights per week
  • First class available
DEN
Direct
ONT

The timetable & schedule information was updated at 2024-12-13

Non-stop with Frontier Airlines

  • Total flight time: 2 hours and 32 minutes
  • Low-cost airline
  • Denver is a Frontier Airlines focus city.
  • 12 flights per week
DEN
Direct
ONT

The timetable & schedule information was updated at 2024-12-13

Via Las Vegas with Southwest Airlines

  • Total flight time: 3h 50m - 8h 15m.
  • Low-cost airline
  • Denver is a Southwest Airlines focus city (Operating base).
  • 74 flights per week
DEN
 
Via LAS
 
ONT

The timetable & schedule information was updated at 2024-12-13

Via Phoenix with Southwest Airlines

  • Total flight time: 3h 50m - 8h 15m.
  • Low-cost airline
  • Denver is a Southwest Airlines focus city (Operating base).
  • 73 flights per week
DEN
 
Via PHX
 
ONT

The timetable & schedule information was updated at 2024-12-13

Via San Francisco with United Airlines

  • Total flight time: 4h 52m - 7h 29m.
  • Denver is a United Airlines hub.
  • 49 flights per week
DEN
 
Via SFO
 
ONT

The timetable & schedule information was updated at 2024-12-13

Via Sacramento with Southwest Airlines

  • Total flight time: 4h 30m - 9h 25m.
  • Low-cost airline
  • Denver is a Southwest Airlines focus city (Operating base).
  • 48 flights per week
DEN
 
Via SMF
 
ONT

The timetable & schedule information was updated at 2024-12-13

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