UA505 SFO → IAH

United Airlines · San Francisco, CA to Houston, TX · 327 flights observed, 2025-07-01 to 2026-06-30 · 1,635 mi

This flight's scheduled flight time has grown by 18 min since 2025-07 — some of the on-time performance may reflect a more generous published schedule, not a faster or more reliable flight.

UA505 covers more than one route in the data window — the stats below are for SFO → IAH, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
84%
Median delay
-5 min
90th percentile
+34 min
Cancellation rate
0%

How often is UA505 on time?

Across 327 flights on SFO → IAH from 2025-07-01 to 2026-06-30, UA505 arrived within 15 minutes of schedule 84% of the time. The median arrival delay was -5 min, and the worst 10% of flights arrived +34 min or later. 0% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time27384%
16-30 min155%
31-60 min227%
61-120 min103%
2+ hrs52%

Performance by month

MonthFlightsOn-timeAvg delay
2025-073177%+12 min
2025-083181%+7 min
2025-0930100%-13 min
2025-103087%-5 min
2025-113083%-3 min
2025-123177%+5 min
2026-01450%+20 min
2026-021782%+26 min
2026-033190%+8 min
2026-043090%-5 min
2026-053087%-2 min
2026-063073%+10 min

Performance by day of week

DayFlightsOn-time
Mon4783%
Tue4693%
Wed4678%
Thu4787%
Fri4584%
Sat4783%
Sun4779%

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