UA639 SFO → MCO

United Airlines · San Francisco, CA to Orlando, FL · 5 flights observed, 2026-03-31 to 2026-04-28 · 2,446 mi

UA639 covers more than one route in the data window — the stats below are for SFO → MCO, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
60%
Median delay
+6 min
90th percentile
+32 min
Cancellation rate
0%

How often is UA639 on time?

Across 5 flights on SFO → MCO from 2026-03-31 to 2026-04-28, UA639 arrived within 15 minutes of schedule 60% of the time. The median arrival delay was +6 min, and the worst 10% of flights arrived +32 min or later. 0% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time360%
16-30 min120%
31-60 min120%
61-120 min00%
2+ hrs00%

Performance by month

MonthFlightsOn-timeAvg delay
2026-031100%-4 min
2026-04450%+11 min

Performance by day of week

DayFlightsOn-time
MonNo data—
Tue560%
WedNo data—
ThuNo data—
FriNo data—
SatNo data—
SunNo data—

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