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8,138 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Fly Bush to Palm Beach: 4 in 5 arrive on time, against barely half from Hobby to Miami.

Best time to leave 5–6 am 89% arrive on time from IAH
Best airport pair IAH → PBI 80% on time, 1.0% cancelled, 508 flights
Best single flight UA 2261 IAH 07:35 → FLL 11:22 · 94% on time Avoid UA 1956 IAH 18:26 → FLL 22:04 · 77% on time

Time of day × airport

Share of flights leaving within 15 minutes, by scheduled departure hour: all flights from that airport, wherever they’re going. Blank: fewer than 40 flights.

5
6
7
8
9
10
11
12
13
14
15
16
17
18
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20
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IAH
92
91
91
87
86
83
83
84
77
81
76
78
72
74
71
76
79
81
85
HOU
94
95
93
90
91
85
82
73
74
65
65
67
64
66
56
62
61
55
% leaving within 15 min, all flights from that airport: 85+75–8465–7455–64under 55

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) 3,807 84% 0.5% 61 min
American (incl. Envoy, Republic) IAH→MIA only 1,688 78% 1.2% 108 min
Spirit 1,169 72% 2.3% 78 min
Frontier 309 66% 4.2% 111 min
Southwest 1,097 63% 0.5% 50 min
JetBlue IAH→FLL only 68 – 2.9% 76 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 2261 IAH 07:35 FLL 11:22 94%
AA 1047 IAH 05:10 MIA 08:51 91%
UA 1966 IAH 07:25 MIA 11:12 89%
AA 1347 IAH 07:35 MIA 11:20 87%
UA 277 IAH 16:35 FLL 20:22 85%
· · ·
UA 410 IAH 12:00 MIA 15:47 84%
UA 1956 IAH 18:26 FLL 22:04 77%
All 30 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 IAH FLL 2h 36m 85% 0.7% 1,830 Flying now
United IAH MIA 2h 38m 82% 0.2% 1,469 Flying now
United IAH PBI 2h 35m 80% 1.0% 508 Flying now
American IAH MIA 2h 38m 78% 1.2% 1,688 Flying now
Frontier IAH MIA 2h 54m 68% 4.0% 175 Flying now
Southwest HOU FLL 2h 20m 67% 0.4% 809 Flying now
Frontier IAH FLL 2h 41m 63% 4.5% 134 Flying now
Southwest HOU MIA 2h 20m 50% 0.7% 288 Flying now
JetBlue IAH FLL 2h 23m 36% 2.9% 68 Flying now
Spirit IAH FLL 2h 28m 73% 1.9% 789 Not flying now
Spirit IAH MIA 2h 33m 70% 3.2% 380 Not flying now
Pick a date and this becomes a forecast Coming soon: within 3 days of travel, the same ranking will use that day’s weather and our odds for each flight.

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