Ontario (ONT) to Portland (PDX) flights

Horizon Air, Alaska Airlines fly nonstop from Ontario International Airport to Portland International Airport, with about 21 flights a week in July 2026. The 838-mile flight takes about 2h 17m gate to gate.

From
ONT
Ontario
Ontario International Airport
To
PDX
Portland
Portland International Airport
Distance
838 mi · 1,349 km
Flight time
2h 17m
Airlines
2
Seats filled
79%
Flights a week, July 2026
1,070 flights and 105,517 passengers in 12 months
PDXPDXONT
Map data: Natural Earth. Lines follow the shortest (great-circle) path.

Airlines flying ONT to PDX

AirlineFlights a weekAircraftPassengers (12 months)Flight time
Horizon Air12Embraer E17535,0732h 16m
Alaska Airlines9Boeing 737-900ER, Boeing 737 MAX 9, Boeing 737-80056,6912h 16m
SkyWest AirlinesSeasonal or endedn/aEmbraer E1754,3972h 21m
Frontier AirlinesSeasonal or endedn/aAirbus A320neo, Airbus A321, Airbus A320-100/2009,3562h 21m

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

ONT to PDX flight schedule

7 flight numbers flew this route in August 2026, 1 of them almost daily. The first usually leaves at 7:00am and the last at 5:32pm. Times are local and can change; check with the airline before you book.

FlightDepartsArrivesDays flown in August 2026On time (12 months)
AS 2397Alaska Airlines · operated by Horizon Air7:00am9:21am1887%
AS 544Alaska Airlines7:12am9:30am1395%
AS 2169Alaska Airlines · operated by Horizon Air10:45am1:04pm5n/a
AS 730Alaska Airlines10:47am1:04pm8n/a
AS 1699Alaska Airlines10:54am1:09pm1894%
AS 2186Alaska Airlines · operated by Horizon Air3:09pm5:28pm4n/a
AS 2456Alaska Airlines · operated by Horizon Air5:32pm7:49pm2793%

Is ONT to PDX on time?

From September 2025 to August 2026, 91% of 1,065 flights arrived within 15 minutes of schedule and 1.1% were cancelled. Flights leaving around 10am were the most punctual (94%), those around 6pm the least (88%). Most delay time was caused by the airline (crew, maintenance, cleaning, fuelling) (58%).

AirlineFlightsOn timeAverage delayCancelled
Alaska Airlines1,02692%7 min1.2%
Frontier Airlines3982%6 min0%

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 8am335
93%
8am to 9am25
76%
10am to 11am198
94%
11am to 12pm62
90%
12pm to 1pm44
91%
1pm to 2pm52
94%
2pm to 3pm22
100%
5pm to 6pm248
89%
6pm to 7pm75
88%

Flights by month

MonthFlightsFlights, relativePassengers
August 2025107
10,403
September 202591
8,290
October 202594
9,162
November 202594
10,561
December 202577
8,358
January 202691
7,943
February 202674
7,199
March 202684
8,248
April 202687
7,912
May 202691
8,017
June 202689
10,205
July 202691
9,219

Related

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