UA573 · UAL573

UAL573 over the last 30 days

As of 2026-10-28

UAL573 is operated by United Airlines on the route St. Louis Lambert International Airport (STL/KSTL) → San Francisco International Airport (SFO/KSFO). It usually takes off around 12:15 UTC (07:15 local time, STL). It usually lands around 16:10 UTC (09:10 local time, SFO). Most frequent aircraft type: BOEING 737 MAX 8 (B38M).

Days with an observed flight (last 30 days)

30/30

Days of the week with an observed flight

Mon, Tue, Wed, Thu, Fri, Sat, Sun

Typical take-off

12:15 UTC · 07:15 local time (STL)

Typical landing

16:10 UTC · 09:10 local time (SFO)

Typical time airborne

230 min

Median departure deviation from the usual time on this route

+1 min

Departures within 15 minutes of the usual time

100 %

Departures measured

25

Our measurement against the usual departure time of the route, from our own observations over the last 28 days; the figures cover all flights of this airline on the route.

Aircraft types on this flight (last 30 days)

• BOEING 737 MAX 8 (B38M) — Number of flights: 31
• BOEING 737-800 (B738) — Number of flights: 21
• AIRBUS A-319 (A319) — Number of flights: 4

Aircraft in the last 7 days

• N14559 · AIRBUS A-321neo 2026-10-28
• N811UA · AIRBUS A-319 2026-10-27
• N14564 · AIRBUS A-321neo 2026-10-27
• N831UA · AIRBUS A-319 2026-10-27
• N14569 · AIRBUS A-321neo 2026-10-26
• N839UA · AIRBUS A-319 2026-10-26

Related flights on this route

• All flights KSTL – KSFO