Route
ORD → PIT
Chicago O'Hare International Airport Pittsburgh International Airport
How punctual is this route?
- On-time arrivals
- 73.6%
- Less than 15 minutes late
- Cancelled
- 2.3%
- Of scheduled flights
- Average delay when late
- 85 min
- Flights arriving 15+ minutes late
- Flights tracked
- 4,029
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 52%
- Airline (crew, maintenance, cleaning) 26%
- Air traffic control & airport 14%
- Extreme weather 9%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 85.2% | 345 |
| October 2025 | 79.7% | 372 |
| November 2025 | 75.9% | 329 |
| December 2025 | 64.1% | 304 |
| January 2026 | 69.3% | 271 |
| February 2026 | 77.7% | 257 |
| March 2026 | 60.1% | 281 |
| April 2026 | 73.2% | 346 |
| May 2026 | 80.5% | 397 |
| June 2026 | 76.6% | 365 |
| July 2026 | 69.6% | 390 |
| August 2026 | 66.9% | 372 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data
Airlines on this route
| Airline | Flights | On time | Cancelled | Avg. delay when late |
|---|---|---|---|---|
| Republic Airways | 1,722 | 80.3% | 2.6% | 89 min |
| United Airlines | 1,318 | 74.2% | 1.4% | 73 min |
| American Airlines | 616 | 54.2% | 3.1% | 102 min |
| SkyWest Airlines | 235 | 68.3% | 3.4% | 67 min |
| Envoy Air | 138 | 80.0% | 2.2% | 74 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
YX3464
23% late · 358 flights
-
UA1285
13% late · 299 flights
-
UA567
26% late · 183 flights
-
UA1946
41% late · 179 flights
-
UA1349
32% late · 165 flights
-
AA1995
47% late · 146 flights
-
YX4539
22% late · 135 flights
-
YX4484
10% late · 124 flights
-
UA1082
25% late · 111 flights
-
YX3432
17% late · 111 flights
-
YX4625
21% late · 80 flights
-
UA1905
35% late · 78 flights
-
AA2296
54% late · 76 flights
-
AA555
37% late · 76 flights
-
YX4569
29% late · 76 flights
-
YX4478
8% late · 66 flights
-
MQ3975
21% late · 63 flights
-
UA1974
47% late · 56 flights
-
UA2251
15% late · 55 flights
-
YX3655
2% late · 51 flights
-
YX4363
26% late · 50 flights
-
OO5584
39% late · 47 flights
-
UA2629
13% late · 47 flights
-
UA2771
26% late · 47 flights
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