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8,137 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am from Palm Beach or Fort Lauderdale: 94% depart on time. After 4 pm it’s 64%.

Best time to leave 6–7 am 97% arrive on time from PBI, 95% arrive on time from FLL, 95% arrive on time from MIA
Best airport pair PBI → IAH 82% on time, 1.2% cancelled, 507 flights
Best single flight UA 2314 FLL 07:00 → IAH 08:45 · 97% on time Avoid AA 2541 MIA 19:42 → IAH 21:33 · 65% 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
92
95
92
91
89
90
81
89
78
71
65
74
54
51
64
54
59
65
FLL
91
94
93
94
88
91
51
79
59
78
67
70
43
44
46
57
PBI
96
87
56
% 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.
United (incl. Mesa) 3,805 87% 0.6% 88 min
American (incl. Envoy, Republic) MIA→IAH only 1,689 73% 1.1% 72 min
Southwest 1,101 72% 0.8% 56 min
Spirit 1,163 71% 2.2% 79 min
Frontier 310 69% 3.5% 81 min
JetBlue FLL→IAH only 69 – 4.3% 66 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.
UA 2314 FLL 07:00 IAH 08:45 97%
UA 722 FLL 09:00 IAH 10:45 90%
UA 470 MIA 12:29 IAH 14:23 87%
F9 1067 MIA 06:30 IAH 08:24 85%
UA 2162 FLL 13:10 IAH 15:00 84%
· · ·
AA 2230 MIA 22:15 IAH 23:59 70%
UA 1752 PBI 17:05 IAH 18:59 68%
AA 2541 MIA 19:42 IAH 21:33 65%
All 27 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 IAH 2h 58m 88% 0.7% 1,830 Flying now
United MIA IAH 3h 00m 87% 0.4% 1,468 Flying now
Frontier MIA IAH 2h 54m 83% 4.0% 176 Flying now
United PBI IAH 3h 01m 82% 1.2% 507 Flying now
Southwest MIA HOU 2h 50m 73% 0.7% 290 Flying now
American MIA IAH 2h 58m 73% 1.1% 1,689 Flying now
Southwest FLL HOU 2h 50m 72% 0.9% 811 Flying now
JetBlue FLL IAH 3h 02m 66% 4.3% 69 Flying now
Frontier FLL IAH 2h 54m 50% 3.0% 134 Flying now
Spirit FLL IAH 2h 56m 72% 1.9% 783 Not flying now
Spirit MIA IAH 3h 01m 70% 2.9% 380 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