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10,869 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 63%.

Best time to leave 5–6 am 93% arrive on time from FLL
Best airport pair MIA → ORD 72% on time, 2.0% cancelled, 4,450 flights
Best single flight AA 1431 MIA 08:28 → ORD 10:59 · 90% on time Avoid UA 403 FLL 16:20 → ORD 19:00 · 52% 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).

5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
MIA
91
85
81
68
63
71
FLL
95
79
68
65
59
55
52
PBI
91
92
87
63
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
Chicago flights leaving FLL 9–10 pm: 1Close ×
B6 863 FLL 21:05 ORD 23:44 3h 39m 23 48% 8.7% 89 min

Airlines on this route

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

United 3,112 73% 0.8% 86 min
American 4,654 72% 1.9% 88 min
Frontier 292 71% 2.4% 138 min
Southwest 1,596 70% 1.4% 61 min
Spirit 1,169 62% 4.2% 73 min
JetBlue FLL→ORD only 46 – 6.5% 75 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 1755 FLL 12:26 ORD 14:55 87%
UA 1983 MIA 12:30 ORD 15:13 82%
F9 2206 FLL 09:48 ORD 12:24 69%
· · ·
UA 651 FLL 19:37 ORD 22:20 66%
UA 2106 MIA 16:10 ORD 18:53 59%
UA 403 FLL 16:20 ORD 19:00 52%
All 32 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.

United FLL ORD 3h 32m 76% 0.7% 1,510 Flying now
American MIA ORD 3h 31m 73% 1.9% 3,017 Flying now
Southwest FLL MDW 3h 10m 72% 1.3% 1,124 Flying now
United MIA ORD 3h 39m 72% 1.0% 1,070 Flying now
American FLL ORD 3h 31m 70% 1.4% 841 Flying now
American PBI ORD 3h 25m 70% 2.4% 796 Flying now
Southwest MIA MDW 3h 15m 68% 1.6% 439 Flying now
Frontier FLL ORD 3h 38m 67% 2.7% 182 Flying now
United PBI ORD 3h 27m 67% 0.8% 532 Flying now
JetBlue FLL ORD 3h 39m 60% 6.5% 46 Flying now
Frontier MIA MDW 3h 27m 79% 1.6% 64 Not 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
Spirit FLL ORD 3h 22m 61% 3.3% 852 Not flying now
Southwest FLL ORD 3h 35m 45%few flights 3.0% 33 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