Is UA504 delayed?
Service date: · Scheduled departure date (America/New_York)
Arrived
42 min late
Official source · Updated
Departure
Baltimore
BWI
Actual
Scheduled 19:04
Sep 17
Arrival
San Francisco
SFO
Actual
Scheduled 21:37
Sep 17
Times shown in airport local time
Flight details
Departure · UTC
- Scheduled
- Estimated
- Not available
- Actual
Arrival · UTC
- Scheduled
- Estimated
- Actual
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Recent arrivals
Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.
- 42 min late
BWI → SFO
- 7 min early
BWI → SFO
- 32 min late
BWI → SFO
- 21 min early
BWI → SFO
- 38 min late
BWI → SFO
Flight history and details
Aug 19, 2026 — Sep 18, 2026
- Observed arrivals
- 13
- Arrivals over 15 minutes late
- 5
- Observed cancellations
- 0
- Observed occurrences
- 13
Results compare scheduled and actual arrival times. Cancelled or diverted flights are excluded. Some flights may be missing from the history.
| Service date | Departure | Arrival | Actual | Arrival delay (minutes) |
|---|---|---|---|---|
| Sep 17, 2026Arrived | Baltimore | San Francisco | 42 | |
| Sep 14, 2026Arrived | Baltimore | San Francisco | -7 | |
| Sep 13, 2026Arrived | Baltimore | San Francisco | 32 | |
| Sep 7, 2026Arrived | Baltimore | San Francisco | -21 | |
| Sep 4, 2026Arrived | Baltimore | San Francisco | 38 | |
| Sep 3, 2026Arrived | Baltimore | San Francisco | 2 | |
| Aug 31, 2026Arrived | Baltimore | San Francisco | 18 | |
| Aug 30, 2026Arrived | Baltimore | San Francisco | 5 | |
| Aug 28, 2026Arrived | Baltimore | San Francisco | 14 | |
| Aug 27, 2026Arrived | Baltimore | San Francisco | 42 | |
| Aug 24, 2026Arrived | Baltimore | San Francisco | -35 | |
| Aug 23, 2026Arrived | Baltimore | San Francisco | -9 | |
| Aug 21, 2026Arrived | Baltimore | San Francisco | -15 |