UA1646United Airlines · SFO → BWI
updated 1h ago
Route confirmed United Airlines

UA1646 San FranciscoSFO · 21:30 BaltimoreBWI · 06:48

UA1646 by United Airlines flies from San Francisco (SFO) to Baltimore (BWI) for the Thu, Nov 5 departure.

Right nowOn Time · gate E4 · as of 09:35
21:30

departs SFO · on schedule

Typical gate push−5 minmedian posted departure
Typical arrival−23 minmedian over 5 operations
Wins back in air~18 minmedian gate push vs arrival · how planes make up time →

Where the minutes go

last 5 operations · gate push → arrival
0+30+60+90 min
11-05
−23 arrival
11-04
−5 gate · −23 arrival
11-03
−1 gate · −23 arrival
11-02
−6 gate · −15 arrival
11-01
+4 arrival

The bar is how late it left the gate; the ring is where it actually arrived. Board clocks, not estimates.

The last 30 days

arrival outcome per operation

median arrival −23 min · 0 cancelled · 5 operations tracked

The route today

live boards
SFOSan FranciscoOn-time likelySFO delay board →
BWIBaltimoreOn-time likelyBWI delay board →
SFO→BWIevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
42%Chance of 15+ min delay
0.9%Chance of cancellation
+10 minTypical airport delay in this weather

Conditions at SFO and BWI are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. These figures come from both airports' records under conditions like today's, over the last 90 days.

Pro Flight Search tracking, 90 days · the weather × delay correlation study → · live weather risk by airport →

Tomorrow at San Francisco

Forecast

Fri 6 Nov, local date

High21°Clikely 20°C to 23°C
Low12°Clikely 11°C to 14°C

Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.

Tomorrow at Baltimore

Forecast

Fri 6 Nov, local date

High21°Clikely 19°C to 22°C
Low13°Clikely 10°C to 15°C
  • 33% chance of fog

Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.

When it flies

scheduled departures
061422
M
T
W
T
F
S
S

Each mark is a scheduled departure at its origin-local time. Today is highlighted.

Other San Francisco to Baltimore flights today

same route · United Airlines
UA2664departs 09:12

If UA1646 is cancelled, this is the other United Airlines nonstop flight from San Francisco to Baltimore on the same day, with scheduled departure times in SFO local time. Most flights that show a delay still operate. Rebooking usually helps only when that delay is very large. Every airline on this route →

How UA1646 actually runs

Pro Flight Search has tracked every published board update for UA1646 across the SFO and BWI boards: schedule changes, gate pushes and actual clocks. Usually lands on time. Based on 5 confirmed landings · 5/5 within 15 min of schedule.

The verdict above is that record speaking, so it reflects how UA1646 operates rather than what the timetable promises. Numbers refresh as new flights operate.

Technical record

How this operation is measured

board clocksaircraft

Board log

scheduled → actual, per operation
11-05SFO 21:30BWI 06:48 06:25 (−23)
11-04SFO 22:35 22:30 (−5)BWI 06:48 06:25 (−23)
11-03SFO 22:35 22:34 (−1)BWI 06:48 06:25 (−23)
11-02SFO 21:45 21:39 (−6)BWI 05:58 05:43 (−15)
11-01SFO BWI 05:43 05:47 (+4)

Aircraft

Recent tails: N47343, N77584, N17364, N37367.

Board clocks recorded as SFO and BWI published them.

Planning around UA1646? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure

Cite this data

Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.

Suggested citation

Pro Flight Search: UA1646 San Francisco to Baltimore on-time performance, measured from the SFO and BWI airport boards.

Canonical URL
https://proflightsearch.com/flight/UA1646
How we measure this →