Route Reliability
Chicago → Pittsburgh
ORD–PIT · 413 miles · Chicago O'Hare International Airport to Pittsburgh International Airport
- 75%
- Arrive within 15 minutes
- 14 min
- Average arrival delay
- 1.8%
- Cancelled
- 3,940
- Flights in the data
Data through May 2026.
Who flies it best
Ranked by on-time arrivals. Historical results, not predictions.
- 1.United Airlines78%2,125 flights
- 2.American Airlines71%1,815 flights
What the data says
Morning-you made the right choice.
ORD–PIT flights departing between 6–9 AM arrived on time 86% of the time, versus 65% between 6–9 PM.
Sunday scaries are real for this one.
ORD–PIT flights arrived on time 82% of the time on Tuesdays. On Sundays: 70%.
United Airlines runs this route best.
United Airlines arrived on time 78% of the time on this route; American Airlines managed 71%.
Best historical flights
Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.
Top flights by on-time rate
More flights on this route
The breakdown
- Mon71%(580 flights)
- Tue82%(552 flights)
- Wed77%(552 flights)
- Thu76%(569 flights)
- Fri74%(563 flights)
- Sat75%(473 flights)
- Sun70%(575 flights)
- 12–3 AM—(3 flights)
- 6–9 AM86%(543 flights)
- 9 AM–12 PM80%(619 flights)
- 12–3 PM77%(953 flights)
- 3–6 PM66%(479 flights)
- 6–9 PM65%(844 flights)
- 9 PM–12 AM78%(423 flights)
Jun 71% → May 80% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 71% | 332 |
| July 2025 | 70% | 331 |
| August 2025 | 81% | 335 |
| September 2025 | 86% | 345 |
| October 2025 | 80% | 369 |
| November 2025 | 76% | 315 |
| December 2025 | 66% | 302 |
| January 2026 | 70% | 262 |
| February 2026 | 79% | 257 |
| March 2026 | 62% | 281 |
| April 2026 | 74% | 340 |
| May 2026 | 80% | 395 |
Same trip, other airports
Keep nerding
Based on 3,940 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.