🇺🇸 DEN
Denver
856 mi
ONT 🇺🇸
Ontario

Denver to Ontario Flights

Denver International Airport Ontario International Airport 5 airlines

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The Denver to Ontario route connects Denver International Airport (DEN) in US with Ontario International Airport (ONT) in US. This short-haul flight covers approximately 856 miles (1378 km) with a typical flight time of 1h 56m. This route is served by 5 airlines: UPS Airlines, Southwest, Frontier and others. AirportRoutes has tracked 16 unique flight numbers on this route.

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Departure Airport

Denver International Airport

ICAO Code:
KDEN
IATA Code:
DEN
City:
🇺🇸 Denver
Country:
US
Elevation:
5431 ft

Destination Airport

Ontario International Airport

ICAO Code:
KONT
IATA Code:
ONT
City:
🇺🇸 Ontario
Country:
US
Elevation:
944 ft

5

Operators

16

Tracked Flights

856

Miles

1h 56m

Flight Duration

Route Map

Great Circle
Flight route map from Denver to Ontario
Map data © Mapbox © OpenStreetMap contributors

Operating Airlines

Airline ICAO IATA
United Parcel Service UPS 5X
Southwest SWA WN
Frontier FFT F9
United UAL UA
Volaris VOI Y4

Flight Schedule Pattern

Day Flights Observed Frequency Activity
Monday 4 4%
Tuesday 30 30%
Wednesday 25 25%
Thursday 13 13%
Friday 11 11%
Saturday 7 7%
Sunday 9 9%

Pattern Analysis

16 Tracked Flights:
Data Points: 99
API observations used to build this analysis
Weekdays: 83 flights
Weekend: 16 flights
Business Route More active on weekdays

All Flight Routes

5 Routes
Note: This table shows aggregated route data by airline. Each airline may operate multiple daily flights at different times. See the "Spotted Departure Times" section below for all observed departure times.
Airline Flight Numbers Aircraft Type Typical Time Days Active Last Seen Status
Frontier
FFT / F9
A21N 22:29 10:29 PM (Representative)
M T W T F S S
Apr 23, 2026 Active
Southwest
SWA / WN
B38M 20:30 8:30 PM (Representative)
M T W T F S S
Jun 30, 2026 Active
United
UAL / UA
A320 04:29 4:29 AM (Representative)
M T W T F S S
Jul 7, 2026 Active
B763 05:45 5:45 AM (Representative)
M T W T F S S
Jun 3, 2026 Active
Volaris
VOI / Y4
A320 22:29 10:29 PM (Representative)
M T W T F S S
Dec 2, 2025 Active
Total Routes: 5
Active Routes: 5
Unique Airlines: 5
Aircraft Types: 5

Spotted Departure Times

Departure Time Operator ICAO IATA
04:29 4:29 AM United UAL UA
05:45 5:45 AM United Parcel Service UPS 5X
20:30 8:30 PM Southwest SWA WN
22:29 10:29 PM Frontier FFT F9
22:29 10:29 PM Volaris VOI Y4

Time Information

Times are shown in the departure airport's local timezone (UTC).

Total Departure Times: 5
Time Range:
04:29 - 22:29
These are typical departure times observed from actual flights. Times may vary by season and schedule changes.