Route Reliability
Miami → Chicago
MIA–ORD · 1,197 miles · Miami International Airport to Chicago O'Hare International Airport
- 72%
- Arrive within 15 minutes
- 14 min
- Average arrival delay
- 1.8%
- Cancelled
- 4,451
- Flights in the data
Data through May 2026.
Who flies it best
Ranked by on-time arrivals. Historical results, not predictions.
- 1.United Airlines73%1,010 flights
- 2.American Airlines72%3,019 flights
- 3.Spirit Airlines66%376 flights
Not enough history to rank: Frontier Airlines (46 flights). We rank airlines only after 100 flights on the route.
What the data says
Morning-you made the right choice.
MIA–ORD flights departing between 6–9 AM arrived on time 88% of the time, versus 58% between 3–6 PM.
Sunday scaries are real for this one.
MIA–ORD flights arrived on time 78% of the time on Tuesdays and just 62% on Sundays. That gap is worth planning around.
United Airlines runs this route best.
United Airlines arrived on time 73% of the time on this route; Spirit Airlines managed 66%.
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
- Mon70%(612 flights)
- Tue78%(597 flights)
- Wed76%(589 flights)
- Thu73%(628 flights)
- Fri70%(641 flights)
- Sat75%(626 flights)
- Sun62%(633 flights)
- 3–6 AM77%(31 flights)
- 6–9 AM88%(859 flights)
- 9 AM–12 PM85%(420 flights)
- 12–3 PM76%(820 flights)
- 3–6 PM58%(1188 flights)
- 6–9 PM60%(645 flights)
- 9 PM–12 AM75%(363 flights)
Jun 70% → May 75% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 70% | 330 |
| July 2025 | 59% | 326 |
| August 2025 | 64% | 321 |
| September 2025 | 72% | 312 |
| October 2025 | 78% | 323 |
| November 2025 | 79% | 336 |
| December 2025 | 76% | 377 |
| January 2026 | 73% | 398 |
| February 2026 | 72% | 408 |
| March 2026 | 65% | 464 |
| April 2026 | 78% | 382 |
| May 2026 | 75% | 349 |
Same trip, other airports
Keep nerding
Based on 4,451 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.