Route · ORD → MIA · 2020–2025 BTS data
Chicago to Miami
The ORD–MIA corridor (Chicago, IL → Miami, FL) runs behind the national average, served by 20 carriers across roughly 1,197 miles.
Data updated 2026-06-13
- 78.6%
- On-time
- -0.4 pts
- vs US avg
- 71 min
- Delay when late
- 23,554
- Flights
Cancelled
1.2%
Best Month
Oct 2024 91%
Worst Month
Jan 2024 65%
Distance
1,197 mi
Carriers
20
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 386 | 115 | 5 | 0 | NK,AA,UA |
| Nov 2025 | 347 | 72 | 10 | 2 | UA,NK,AA |
| Oct 2025 | 329 | 56 | 0 | 0 | AA,UA,NK |
| Sep 2025 | 313 | 53 | 0 | 0 | UA,NK,AA |
| Aug 2025 | 334 | 79 | 5 | 2 | AA,NK,UA |
| Jul 2025 | 338 | 99 | 8 | 3 | AA,NK,UA |
| Jun 2025 | 334 | 75 | 2 | 4 | AA,UA,NK |
| May 2025 | 370 | 72 | 3 | 0 | AA,NK,UA |
| Apr 2025 | 382 | 64 | 5 | 2 | NK,UA,AA |
| Mar 2025 | 434 | 97 | 6 | 0 | AA,UA,NK |
| Feb 2025 | 361 | 77 | 2 | 0 | AA,UA,NK |
| Jan 2025 | 409 | 95 | 1 | 1 | AA,UA,NK |
| Dec 2024 | 408 | 98 | 1 | 0 | AA,NK,UA |
| Nov 2024 | 332 | 36 | 0 | 1 | UA,NK,AA |
| Oct 2024 | 338 | 29 | 3 | 1 | UA,NK,AA |
| Sep 2024 | 308 | 34 | 0 | 1 | UA,AA,NK |
| Aug 2024 | 335 | 106 | 8 | 5 | AA,NK,UA |
| Jul 2024 | 331 | 91 | 3 | 3 | AA,NK,UA |
| Jun 2024 | 329 | 83 | 15 | 1 | AA,NK,UA |
| May 2024 | 368 | 123 | 2 | 1 | AA,NK,UA |
| Apr 2024 | 380 | 69 | 0 | 0 | AA,NK,UA |
| Mar 2024 | 419 | 117 | 6 | 2 | AA,NK,UA |
| Feb 2024 | 372 | 65 | 0 | 0 | AA,NK,UA |
| Jan 2024 | 423 | 147 | 17 | 0 | AA,NK,UA |
Cancellation Rate
1.2%
102 of 8,680 flights
Diversion Rate
0.3%
29 of 8,680 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
ORD - Chicago
Full on-time, delay-cause, and seasonal performance for Chicago, IL.
Origin airport →MIA - Miami
Full on-time, delay-cause, and seasonal performance for Miami, FL.
Destination airport →Compare the two airports
See ORD and MIA side by side on delays, cancellations, and reliability.
Open comparison tool →Similar routes
Other BTS-tracked routes with comparable performance or trip length to ORD–MIA.
Routes with a similar on-time rate
What the Data Says About ORD to MIA
23,554 tracked flights put the ORD to MIA pairing (Chicago to Miami) at a 78.6% on-time rate, squarely in line with the wider network. Delays that do occur run 71.1 minutes on average. Across the 1,197-mile route and its 20 carriers, the trailing 24 months show 1.2% cancelled and 0.3% diverted (8,680 flights sampled).
The monthly split is wide on this route: Oct 2024 posted the strongest performance at 91% on-time, while Jan 2024 came in at just 65% - a 26-point swing worth factoring into travel timing.
Frequently Asked Questions
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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.