Las Vegas (LAS) to Chicago (ORD) flights
United Airlines, American Airlines, Frontier Airlines fly nonstop from Harry Reid International Airport to Chicago O'Hare International Airport, with about 92 flights a week in July 2026. The 1,514-mile flight takes about 3h 40m gate to gate.
- Distance
- 1,514 mi ยท 2,437 km
- Flight time
- 3h 40m
- Airlines
- 3
- Seats filled
- 86%
Airlines flying LAS to ORD
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| United Airlines | 47 | Airbus A321, Boeing 737-900ER, Boeing 737 MAX 9 | 365,534 | 3h 42m |
| American Airlines | 39 | Boeing 737-800, Airbus A321, Boeing 737 MAX 8 | 277,779 | 3h 39m |
| Frontier Airlines | 7 | Airbus A320neo, Airbus A321, Airbus A320-100/200 | 36,970 | 3h 41m |
| Southwest AirlinesSeasonal or ended | n/a | Boeing 737 MAX 8, Boeing 737-800, Boeing 737-700 / MAX 7 | 83,229 | 3h 33m |
| Spirit AirlinesCeased operations 2026-05-02 | n/a | Airbus A320neo, Airbus A320-100/200, Airbus A321 | 29,949 | 3h 33m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
LAS to ORD flight schedule
19 flight numbers flew this route in August 2026, 12 of them almost daily. The first usually leaves at 12:59am and the last at 11:59pm. 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 2949American Airlines | 12:59am | 6:45am | 4 | 77% |
| AA 2258American Airlines | 7:00am | 12:59pm | 31 | 88% |
| UA 664United Airlines | 7:10am | 12:58pm | 31 | 86% |
| UA 1672United Airlines | 9:08am | 3:00pm | 30 | 73% |
| AA 3080American Airlines | 9:34am | 3:37pm | 27 | 76% |
| UA 1583United Airlines | 10:50am | 4:42pm | 31 | 80% |
| AA 3039American Airlines | 12:33pm | 6:44pm | 4 | 76% |
| UA 314United Airlines | 12:40pm | 6:32pm | 21 | 66% |
| AA 1520American Airlines | 1:16pm | 7:30pm | 27 | 48% |
| UA 706United Airlines | 2:20pm | 8:14pm | 31 | 65% |
| AA 2875American Airlines | 3:39pm | 9:55pm | 27 | 48% |
| AA 2013American Airlines | 3:51pm | 10:00pm | 4 | 60% |
| UA 2320United Airlines | 4:08pm | 10:00pm | 31 | 68% |
| AA 2040American Airlines | 11:45pm | 5:37am | 4 | 68% |
| F9 2146Frontier Airlines | 11:49pm | 5:37am | 25 | 68% |
| AA 3323American Airlines | 11:50pm | 5:36am | 19 | 76% |
| AA 2314American Airlines | 11:53pm | 5:39am | 8 | n/a |
| UA 2102United Airlines | 11:55pm | 5:25am | 31 | 91% |
| UA 726United Airlines | 11:59pm | 5:40am | 7 | 85% |
Is LAS to ORD on time?
From September 2025 to August 2026, 76% of 5,148 flights arrived within 15 minutes of schedule and 1.2% were cancelled. Flights leaving around 7am were the most punctual (86%), those around 12pm the least (62%). Most delay time was caused by late-arriving aircraft (38%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| United Airlines | 2,354 | 78% | 17 min | 0.3% |
| American Airlines | 1,894 | 75% | 29 min | 2.2% |
| Southwest Airlines | 551 | 67% | 21 min | 0.2% |
| Frontier Airlines | 213 | 66% | 32 min | 4.7% |
| Spirit Airlines | 136 | 85% | 11 min | 2.9% |
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 departure | Flights | On time, relative | On time |
|---|---|---|---|
| 12am to 1am | 164 | 76% | |
| 6am to 7am | 196 | 92% | |
| 7am to 8am | 566 | 86% | |
| 8am to 9am | 249 | 79% | |
| 9am to 10am | 397 | 84% | |
| 10am to 11am | 414 | 81% | |
| 11am to 12pm | 197 | 79% | |
| 12pm to 1pm | 474 | 62% | |
| 1pm to 2pm | 117 | 61% | |
| 2pm to 3pm | 421 | 65% | |
| 3pm to 4pm | 390 | 62% | |
| 4pm to 5pm | 289 | 71% | |
| 5pm to 6pm | 336 | 73% | |
| 11pm to 12am | 814 | 81% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 472 | 72,871 | |
| September 2025 | 479 | 72,159 | |
| October 2025 | 482 | 74,073 | |
| November 2025 | 379 | 59,223 | |
| December 2025 | 358 | 52,425 | |
| January 2026 | 352 | 54,825 | |
| February 2026 | 394 | 58,901 | |
| March 2026 | 464 | 74,333 | |
| April 2026 | 486 | 74,821 | |
| May 2026 | 480 | 73,828 | |
| June 2026 | 384 | 63,087 | |
| July 2026 | 409 | 63,070 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.