Phoenix (PHX) to Ontario (ONT) flights

Southwest Airlines, American Airlines fly nonstop from Phoenix Sky Harbor International Airport to Ontario International Airport, with about 52 flights a week in July 2026. The 325-mile flight takes about 1h 11m gate to gate.

From
PHX
Phoenix
Phoenix Sky Harbor International Airport
To
ONT
Ontario
Ontario International Airport
Distance
325 mi · 523 km
Flight time
1h 11m
Airlines
2
Seats filled
71%
Flights a week, July 2026
3,026 flights and 344,838 passengers in 12 months
ONTONTPHX
Map data: Natural Earth. Lines follow the shortest (great-circle) path.

Airlines flying PHX to ONT

AirlineFlights a weekAircraftPassengers (12 months)Flight time
Southwest Airlines32Boeing 737 MAX 8, Boeing 737-700 / MAX 7, Boeing 737-800182,4051h 8m
American Airlines20Boeing 737-800, Airbus A321, Airbus A319155,5271h 14m
Envoy AirSeasonal or endedn/aEmbraer E1753,2771h 15m
SkyWest AirlinesSeasonal or endedn/aEmbraer E175, Bombardier CRJ7003,6291h 16m

Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.

PHX to ONT flight schedule

18 flight numbers flew this route in August 2026, 4 of them almost daily. The first usually leaves at 8:05am and the last at 9:10pm. Times are local and can change; check with the airline before you book.

FlightDepartsArrivesDays flown in August 2026On time (12 months)
WN 3236Southwest Airlines8:05am9:20am2492%
WN 853Southwest Airlines10:00am11:15am4n/a
WN 3450Southwest Airlines10:20am11:35am4n/a
AA 2244American Airlines10:45am12:02pm477%
AA 2661American Airlines10:45am12:03pm2790%
WN 239Southwest Airlines12:15pm1:25pm12100%
WN 692Southwest Airlines12:55pm2:05pm8n/a
WN 982Southwest Airlines1:55pm3:05pm1292%
AA 6455American Airlines · operated by SkyWest Airlines2:01pm3:19pm1656%
WN 4455Southwest Airlines4:10pm5:20pm4n/a
WN 3185Southwest Airlines4:25pm5:35pm8n/a
WN 1634Southwest Airlines5:00pm6:15pm4n/a
AA 1666American Airlines5:02pm6:15pm2774%
WN 3904Southwest Airlines7:30pm8:40pm1267%
WN 1516Southwest Airlines7:45pm8:55pm8n/a
AA 1238American Airlines8:30pm9:55pm871%
WN 4113Southwest Airlines8:55pm10:05pm2068%
WN 3238Southwest Airlines9:10pm10:20pm4n/a

Is PHX to ONT on time?

From September 2025 to August 2026, 77% of 3,012 flights arrived within 15 minutes of schedule and 0.5% were cancelled. Flights leaving around 8am were the most punctual (92%), those around 9pm the least (62%). Most delay time was caused by late-arriving aircraft (59%).

AirlineFlightsOn timeAverage delayCancelled
Southwest Airlines1,61674%14 min0.2%
American Airlines1,39680%14 min0.9%

Airlines as sold: flights operated by regional partners count under the airline on the ticket. Average delay is across all completed flights, early arrivals counted as zero.

On-time arrivals by departure time

Scheduled departureFlightsOn time, relativeOn time
7am to 8am132
96%
8am to 9am293
92%
9am to 10am128
92%
10am to 11am327
85%
11am to 12pm205
81%
12pm to 1pm118
78%
1pm to 2pm88
74%
2pm to 3pm151
79%
3pm to 4pm278
79%
4pm to 5pm131
80%
5pm to 6pm239
71%
6pm to 7pm179
69%
7pm to 8pm131
58%
8pm to 9pm295
65%
9pm to 10pm212
62%
10pm to 11pm101
64%

Flights by month

MonthFlightsFlights, relativePassengers
August 2025237
27,218
September 2025226
27,077
October 2025260
29,356
November 2025268
29,934
December 2025284
33,259
January 2026263
26,798
February 2026241
25,460
March 2026289
30,202
April 2026252
28,747
May 2026254
30,500
June 2026222
28,885
July 2026232
27,633

Related

Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.