Route
ORD → MIA
Chicago O'Hare International Airport Miami International Airport
How punctual is this route?
- On-time arrivals
- 73.3%
- Less than 15 minutes late
- Cancelled
- 1.9%
- Of scheduled flights
- Average delay when late
- 78 min
- Flights arriving 15+ minutes late
- Flights tracked
- 4,465
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 40%
- Airline (crew, maintenance, cleaning) 31%
- Air traffic control & airport 24%
- Extreme weather 5%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 83.1% | 313 |
| October 2025 | 83.0% | 329 |
| November 2025 | 78.5% | 347 |
| December 2025 | 69.8% | 386 |
| January 2026 | 69.8% | 412 |
| February 2026 | 78.4% | 411 |
| March 2026 | 64.6% | 497 |
| April 2026 | 73.7% | 401 |
| May 2026 | 78.5% | 352 |
| June 2026 | 67.5% | 330 |
| July 2026 | 70.5% | 340 |
| August 2026 | 66.7% | 347 |
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 |
|---|---|---|---|---|
| American Airlines | 3,044 | 74.6% | 1.8% | 80 min |
| United Airlines | 1,088 | 74.4% | 0.8% | 70 min |
| NK | 287 | 56.4% | 7.3% | 73 min |
| Frontier Airlines | 46 | 64.4% | 2.2% | 121 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
AA2984
6% late · 364 flights
-
AA1875
13% late · 202 flights
-
AA1250
28% late · 182 flights
-
UA1620
27% late · 180 flights
-
UA1358
14% late · 163 flights
-
UA1857
25% late · 163 flights
-
AA1277
34% late · 131 flights
-
AA2323
37% late · 130 flights
-
AA2419
38% late · 116 flights
-
UA2180
33% late · 113 flights
-
NK1713
53% late · 101 flights
-
UA2370
30% late · 91 flights
-
AA835
26% late · 78 flights
-
AA1474
20% late · 76 flights
-
AA2690
54% late · 76 flights
-
AA2910
64% late · 76 flights
-
AA3148
51% late · 76 flights
-
NK1711
56% late · 76 flights
-
AA1380
12% late · 75 flights
-
AA1431
40% late · 71 flights
-
AA3056
28% late · 60 flights
-
AA791
13% late · 60 flights
-
AA1556
23% late · 56 flights
-
AA1679
34% late · 52 flights
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