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4,450 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 9 in 10 depart on time. After 4 pm it’s 2 in 3.

Best time to leave 6–7 am 90% arrive on time from MIA
Best single flight AA 1431 MIA 08:28 → ORD 10:59 · 90% on time Avoid UA 2106 MIA 16:10 → ORD 18:53 · 59% on time

Time of day × airport

Share of this route’s flights leaving within 15 minutes, by airport and scheduled departure hour, over Aug 2025 – Jul 2026. Blank: no flights then (or fewer than 40 in the year).

6
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9
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MIA
91
85
69
69
73
71
% of this route’s flights leaving within 15 min (small number: flights in the Jun 6 – Jul 31, 2026 schedule): 85+75–8465–7455–64under 55

Pick an hour to see this route’s flights leaving then.

Airlines on this route

Arriving within 15 minutes. Regional flights count under the airline that sells them. Pick an airline to see its flights.

American 3,017 73% 1.9% 77 min
United 1,070 72% 1.0% 89 min
Spirit 317 65% 6.6% 66 min
Frontier 46 – 2.2% 175 min

Dimmed: fewer than 150 flights in the year, too few to rank.

Flights, best and worst

Flights in the Jun 6 – Jul 31, 2026 schedule that ran 150+ times in the year. Times are local. Pick a flight for its history.

AA 1431 MIA 08:28 ORD 10:59 90%
AA 581 MIA 06:40 ORD 09:08 87%
UA 1983 MIA 12:30 ORD 15:13 82%
UA 2106 MIA 16:10 ORD 18:53 59%
All 12 flights on this route →

Nonstops by airline and airport

Arriving within 15 minutes, Aug 2025 – Jul 2026. Pick a row to see that airline’s flights on that airport pair.

American MIA ORD 3h 31m 73% 1.9% 3,017 Flying now
United MIA ORD 3h 39m 72% 1.0% 1,070 Flying now
Frontier MIA ORD 3h 38m 73% 2.2% 46 Not flying now
Spirit MIA ORD 3h 25m 65% 6.6% 317 Not flying now
Flying on a particular day? Pick a date above and the same ranking uses our forecast odds for each flight that day: Tomorrow.

About this data: US DOT on-time records, Aug 2025 – Jul 2026, all US airlines; regional flights count under the airline that sells them. Schedules (which flights and connections exist, and their times) are as of Jun 6 – Jul 31, 2026; seasonal flights outside that window aren’t ranked. Rebuilt monthly. JSON