UA604United Airlines · SFO → BWI
live · 6m ago
Route confirmed United Airlines

UA604 San FranciscoSFO · 00:45 BaltimoreBWI · 06:35

UA604 by United Airlines flies from San Francisco (SFO) to Baltimore (BWI) for the Tue, Sep 8 departure.

Same number through SFO → IAH → BWI

Right nowExpected in Baltimore · today
06:35

arrival expected at BWI · on schedule

Typical gate push−6 minmedian posted departure

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
54%Chance of 15+ min delay
1.6%Chance of cancellation
+23 minAvg hub delay right now

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. For this route and airline, 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 →

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
UA686departs 07:05
UA3902departs 08:00
UA2498departs 08:45
UA3877departs 10:15
UA1259departs 10:45
UA1387departs 12:24

If UA604 is cancelled, these are the other United Airlines nonstop flights from San Francisco to Baltimore on the same day, with scheduled departure times in SFO local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →

How UA604 actually runs

Pro Flight Search has tracked every published board update for UA604 across the SFO and BWI boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 2 completed legs so far: left about 6 min early but landed about 17 min early. Not enough to call it.

The verdict above is that record speaking, so it reflects how UA604 operates rather than what the timetable promises. Numbers refresh as new flights operate.

Technical record

How this operation is measured

board clocks

Board log

scheduled → actual, per operation
09-07SFO 00:45 00:34 (−11)BWI
09-06SFO 00:45 00:39 (−6)BWI

Board clocks recorded as SFO and BWI published them.

Planning around UA604? 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 — UA604 San Francisco to Baltimore on-time performance, measured from the SFO and BWI airport boards.

Canonical URL
https://proflightsearch.com/flight/UA604
How we measure this →