Portland (PDX) to Chicago (ORD) flights
United Airlines, American Airlines, Alaska Airlines fly nonstop from Portland International Airport to Chicago O'Hare International Airport, with about 75 flights a week in July 2026. The 1,739-mile flight takes about 4h 2m gate to gate.
- Distance
- 1,739 mi · 2,799 km
- Flight time
- 4h 2m
- Airlines
- 3
- Seats filled
- 87%
Airlines flying PDX to ORD
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| United Airlines | 34 | Boeing 737-900ER, Boeing 737-800, Boeing 737 MAX 9 | 216,371 | 4h 2m |
| American Airlines | 28 | Boeing 737-800, Airbus A321, Boeing 737 MAX 8 | 135,361 | 4h 0m |
| Alaska Airlines | 13 | Boeing 737-900ER, Boeing 737 MAX 9, Boeing 737-800 | 75,086 | 4h 7m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
PDX to ORD flight schedule
16 flight numbers flew this route in August 2026, 9 of them almost daily. The first usually leaves at 5:59am and the last at 11:40pm. Times are local and can change; check with the airline before you book.
| Flight | Departs | Arrives | Days flown in August 2026 | On time (12 months) |
|---|---|---|---|---|
| AA 3329American Airlines | 5:59am | 12:12pm | 27 | 86% |
| AA 2933American Airlines | 6:07am | 12:17pm | 4 | 84% |
| AS 324Alaska Airlines | 7:00am | 1:13pm | 31 | 74% |
| UA 2306United Airlines | 7:16am | 1:29pm | 31 | 89% |
| UA 2822United Airlines | 8:15am | 2:28pm | 21 | 76% |
| UA 1923United Airlines | 10:35am | 4:48pm | 21 | 57% |
| UA 1641United Airlines | 10:46am | 5:00pm | 10 | 76% |
| AA 2284American Airlines | 11:26am | 5:42pm | 4 | 68% |
| AA 2515American Airlines | 12:24pm | 6:45pm | 27 | 75% |
| AA 3303American Airlines | 1:45pm | 7:50pm | 4 | 55% |
| UA 2336United Airlines | 2:27pm | 8:40pm | 31 | 66% |
| AS 376Alaska Airlines | 10:59pm | 5:00am | 17 | 90% |
| UA 2094United Airlines | 11:02pm | 5:03am | 31 | 91% |
| AA 2977American Airlines | 11:15pm | 5:14am | 4 | 64% |
| AA 3185American Airlines | 11:34pm | 5:32am | 27 | 89% |
| UA 1490United Airlines | 11:40pm | 5:45am | 10 | 87% |
Is PDX to ORD on time?
From September 2025 to August 2026, 79% of 2,814 flights arrived within 15 minutes of schedule and 1% were cancelled. Flights leaving around 6am were the most punctual (88%), those around 1pm the least (65%). Most delay time was caused by air traffic control and airport congestion (47%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| United Airlines | 1,413 | 81% | 13 min | 0.7% |
| American Airlines | 901 | 76% | 26 min | 1.2% |
| Alaska Airlines | 500 | 79% | 11 min | 1.4% |
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 departure | Flights | On time, relative | On time |
|---|---|---|---|
| 6am to 7am | 177 | 88% | |
| 7am to 8am | 710 | 81% | |
| 8am to 9am | 68 | 88% | |
| 10am to 11am | 362 | 77% | |
| 11am to 12pm | 197 | 73% | |
| 1pm to 2pm | 182 | 65% | |
| 2pm to 3pm | 210 | 66% | |
| 10pm to 11pm | 240 | 87% | |
| 11pm to 12am | 553 | 86% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 286 | 48,534 | |
| September 2025 | 253 | 40,809 | |
| October 2025 | 263 | 42,151 | |
| November 2025 | 170 | 25,131 | |
| December 2025 | 162 | 25,182 | |
| January 2026 | 137 | 19,711 | |
| February 2026 | 148 | 20,814 | |
| March 2026 | 177 | 26,697 | |
| April 2026 | 235 | 34,486 | |
| May 2026 | 285 | 39,662 | |
| June 2026 | 316 | 49,905 | |
| July 2026 | 331 | 53,736 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.