UA504 · UAL504 — Baltimore → San Francisco

UAL504 over the last 30 days

As of 2026-10-30

UAL504 is operated by United Airlines on the route Baltimore/Washington International Thurgood Marshall Airport (BWI/KBWI) → San Francisco International Airport (SFO/KSFO). It usually takes off around 23:04 UTC (19:04 local time, BWI). It usually lands around 04:30 UTC (21:30 local time, SFO). Most frequent aircraft type: BOEING 737 MAX 9 (B39M).

Days with an observed flight (last 30 days)

22/30

Days of the week with an observed flight

Mon, Thu, Fri, Sun

Typical take-off

23:04 UTC · 19:04 local time (BWI)

Typical landing

04:30 UTC · 21:30 local time (SFO)

Typical time airborne

316 min

Median departure deviation from the usual time on this route

+4 min

Departures within 15 minutes of the usual time

77 %

Departures measured

35

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 9 (B39M) — Number of flights: 21
• BOEING 737-800 (B738) — Number of flights: 9

Aircraft in the last 7 days

• N17479 · BOEING 737 MAX 9 2026-10-30
• N27511 · BOEING 737 MAX 9 2026-10-29
• N77426 · BOEING 737 MAX 9 2026-10-26
• N17411 · BOEING 737 MAX 9 2026-10-25
• N34282 · BOEING 737-800 2026-10-24

Related flights on this route

• All flights KBWI – KSFO