UA1966 IAH → MIA

United Airlines · Houston, TX to Miami, FL · 123 flights observed, 2026-02-12 to 2026-06-30 · 964 mi

This flight's scheduled flight time has grown by 12 min since 2026-02 — some of the on-time performance may reflect a more generous published schedule, not a faster or more reliable flight.

UA1966 covers more than one route in the data window — the stats below are for IAH → MIA, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
89%
Median delay
-12 min
90th percentile
+22 min
Cancellation rate
1%

How often is UA1966 on time?

Across 123 flights on IAH → MIA from 2026-02-12 to 2026-06-30, UA1966 arrived within 15 minutes of schedule 89% of the time. The median arrival delay was -12 min, and the worst 10% of flights arrived +22 min or later. 1% of flights were cancelled.

Delay distribution

Arrival delay for completed flights (excludes cancellations and diversions).

ArrivalFlightsShare
Early / on-time10889%
16-30 min43%
31-60 min54%
61-120 min43%
2+ hrs11%

Performance by month

MonthFlightsOn-timeAvg delay
2026-0213100%-19 min
2026-032879%+8 min
2026-043087%-3 min
2026-052990%-5 min
2026-062295%-16 min

Performance by day of week

DayFlightsOn-time
Mon19100%
Tue1283%
Wed1191%
Thu2090%
Fri2090%
Sat2085%
Sun2080%

Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…