Route · MIA → ORD · 2020–2025 BTS data
Miami to Chicago
The MIA–ORD corridor (Miami, FL → Chicago, IL) runs behind the national average, served by 21 carriers across roughly 1,197 miles.
Data updated 2026-06-13
- 78.9%
- On-time
- -0.1 pts
- vs US avg
- 77 min
- Delay when late
- 23,556
- Flights
Cancelled
1.1%
Best Month
Oct 2024 91%
Worst Month
Jul 2025 58%
Distance
1,197 mi
Carriers
21
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 383 | 97 | 5 | 1 | NK,AA,UA |
| Nov 2025 | 347 | 75 | 11 | 0 | UA,NK,AA |
| Oct 2025 | 323 | 73 | 0 | 0 | AA,UA,NK |
| Sep 2025 | 315 | 88 | 0 | 3 | UA,NK,AA |
| Aug 2025 | 333 | 116 | 6 | 6 | AA,NK,UA |
| Jul 2025 | 337 | 141 | 7 | 4 | AA,NK,UA |
| Jun 2025 | 334 | 102 | 2 | 2 | AA,UA,NK |
| May 2025 | 370 | 97 | 4 | 0 | AA,NK,UA |
| Apr 2025 | 383 | 84 | 5 | 3 | NK,UA,AA |
| Mar 2025 | 435 | 97 | 5 | 4 | AA,UA,NK |
| Feb 2025 | 362 | 56 | 0 | 1 | AA,UA,NK |
| Jan 2025 | 409 | 71 | 1 | 0 | AA,UA,NK |
| Dec 2024 | 406 | 101 | 1 | 0 | AA,NK,UA |
| Nov 2024 | 331 | 35 | 0 | 0 | UA,NK,AA |
| Oct 2024 | 335 | 30 | 3 | 0 | UA,NK,AA |
| Sep 2024 | 307 | 57 | 0 | 0 | UA,AA,NK |
| Aug 2024 | 337 | 121 | 8 | 0 | AA,NK,UA |
| Jul 2024 | 328 | 88 | 4 | 5 | AA,NK,UA |
| Jun 2024 | 331 | 97 | 14 | 3 | AA,NK,UA |
| May 2024 | 368 | 126 | 2 | 2 | AA,NK,UA |
| Apr 2024 | 383 | 75 | 0 | 2 | AA,NK,UA |
| Mar 2024 | 420 | 129 | 5 | 1 | AA,NK,UA |
| Feb 2024 | 371 | 80 | 0 | 1 | AA,NK,UA |
| Jan 2024 | 424 | 117 | 14 | 2 | AA,NK,UA |
Cancellation Rate
1.1%
97 of 8,672 flights
Diversion Rate
0.5%
40 of 8,672 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
MIA - Miami
Full on-time, delay-cause, and seasonal performance for Miami, FL.
Origin airport →ORD - Chicago
Full on-time, delay-cause, and seasonal performance for Chicago, IL.
Destination airport →Compare the two airports
See MIA and ORD side by side on delays, cancellations, and reliability.
Open comparison tool →Similar routes
Other BTS-tracked routes with comparable performance or trip length to MIA–ORD.
Routes with a similar on-time rate
What the Data Says About MIA to ORD
23,556 tracked flights put the MIA to ORD pairing (Miami to Chicago) at a 78.9% on-time rate, squarely in line with the wider network. Delays that do occur run 76.5 minutes on average. Across the 1,197-mile route and its 21 carriers, the trailing 24 months show 1.1% cancelled and 0.5% diverted (8,672 flights sampled).
The monthly split is wide on this route: Oct 2024 posted the strongest performance at 91% on-time, while Jul 2025 came in at just 58% - a 33-point swing worth factoring into travel timing.
Frequently Asked Questions
How often are flights delayed from MIA to ORD? ▼
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Flight Guides
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Data source
Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.
Read our methodology - how this data is sourced, computed, and verified.
Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.