Raleigh/Durham (RDU) to Chicago (ORD) flights
Republic Airline, United Airlines, SkyWest Airlines, American Airlines, Envoy Air fly nonstop from Raleigh-Durham International Airport to Chicago O'Hare International Airport, with about 72 flights a week in July 2026. The 646-mile flight takes about 2h 29m gate to gate.
- Distance
- 646 mi · 1,040 km
- Flight time
- 2h 29m
- Airlines
- 5
- Seats filled
- 78%
Airlines flying RDU to ORD
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| Republic Airline | 26 | Embraer E175 | 65,401 | 2h 35m |
| United Airlines | 20 | Boeing 737 MAX 9, Boeing 737-700 / MAX 7, Airbus A319 | 148,430 | 2h 27m |
| SkyWest Airlines | 14 | Embraer E175, Bombardier CRJ700, Bombardier CRJ550 | 8,666 | 2h 28m |
| American Airlines | 6 | Airbus A319, Boeing 737-800, Boeing 737 MAX 8 | 56,952 | 2h 19m |
| Envoy Air | 5 | Embraer E175, Embraer E170 | 30,190 | 2h 30m |
| Frontier AirlinesSeasonal or ended | n/a | Airbus A320neo, Airbus A321, Airbus A320-100/200 | 15,525 | 2h 29m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
RDU to ORD flight schedule
18 flight numbers flew this route in August 2026, 11 of them almost daily. The first usually leaves at 6:25am and the last at 8:17pm. 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) |
|---|---|---|---|---|
| UA 2638United Airlines | 6:25am | 7:49am | 20 | 89% |
| AA 2849American Airlines | 7:04am | 8:33am | 30 | 84% |
| AA 4633American Airlines · operated by Republic Airline | 7:53am | 9:30am | 4 | 87% |
| UA 1297United Airlines | 8:05am | 9:31am | 10 | 76% |
| UA 2826United Airlines | 8:06am | 9:30am | 21 | 78% |
| AA 2123American Airlines | 9:41am | 11:05am | 27 | 84% |
| UA 1448United Airlines | 10:05am | 11:29am | 31 | 84% |
| UA 5732United Airlines · operated by SkyWest Airlines | 10:59am | 12:29pm | 10 | 84% |
| UA 345United Airlines | 11:29am | 12:54pm | 18 | 67% |
| UA 3406United Airlines · operated by Republic Airline | 1:15pm | 2:46pm | 20 | 74% |
| UA 5465United Airlines · operated by SkyWest Airlines | 1:15pm | 2:45pm | 10 | 83% |
| AA 4756American Airlines · operated by Republic Airline | 1:18pm | 2:54pm | 4 | 81% |
| AA 4583American Airlines · operated by Republic Airline | 1:51pm | 3:30pm | 27 | 69% |
| AA 4529American Airlines · operated by Republic Airline | 3:14pm | 4:59pm | 27 | 69% |
| AA 4732American Airlines · operated by Republic Airline | 4:14pm | 6:02pm | 27 | 54% |
| UA 1495United Airlines | 5:09pm | 6:39pm | 21 | 43% |
| UA 630United Airlines | 5:12pm | 6:42pm | 10 | 43% |
| AA 4563American Airlines · operated by Republic Airline | 8:17pm | 10:00pm | 31 | 60% |
Is RDU to ORD on time?
From September 2025 to August 2026, 74% of 3,740 flights arrived within 15 minutes of schedule and 2.8% were cancelled. Flights leaving around 6am were the most punctual (89%), those around 5pm the least (45%). Most delay time was caused by air traffic control and airport congestion (35%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| American Airlines | 2,059 | 73% | 26 min | 3.5% |
| United Airlines | 1,583 | 77% | 25 min | 1.8% |
| Frontier Airlines | 98 | 58% | 65 min | 5.1% |
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 |
|---|---|---|---|
| 5am to 6am | 105 | 91% | |
| 6am to 7am | 409 | 89% | |
| 7am to 8am | 265 | 83% | |
| 8am to 9am | 198 | 85% | |
| 9am to 10am | 154 | 87% | |
| 10am to 11am | 444 | 87% | |
| 12pm to 1pm | 160 | 78% | |
| 1pm to 2pm | 528 | 79% | |
| 3pm to 4pm | 277 | 70% | |
| 4pm to 5pm | 271 | 63% | |
| 5pm to 6pm | 356 | 45% | |
| 6pm to 7pm | 269 | 61% | |
| 7pm to 8pm | 140 | 56% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 263 | 30,249 | |
| September 2025 | 266 | 27,388 | |
| October 2025 | 326 | 34,474 | |
| November 2025 | 297 | 28,934 | |
| December 2025 | 287 | 27,483 | |
| January 2026 | 213 | 17,703 | |
| February 2026 | 240 | 18,668 | |
| March 2026 | 301 | 24,635 | |
| April 2026 | 345 | 27,397 | |
| May 2026 | 369 | 31,688 | |
| June 2026 | 311 | 28,805 | |
| July 2026 | 318 | 27,847 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.