UA737United Airlines · SEA → SFO
live · 9m ago
Route confirmed United Airlines

UA737 SeattleSEA · 10:40 San FranciscoSFO · 12:59

UA737 by United Airlines flies from Seattle (SEA) to San Francisco (SFO) for the Sat, Oct 31 departure.

Right nowOn time · gate B9
10:40

departs SEA · on schedule

The route today

live boards
SEASeattleOn-time likelySEA delay board →
SFOSan FranciscoOn-time likelySFO delay board →
SEA→SFOevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
43%Chance of 15+ min delay
1.5%Chance of cancellation
+12 minTypical airport delay in this weather

Conditions at SEA and SFO 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 on this route

Forecast

Seattle to San Francisco with United Airlines · Sun 1 Nov, local date

Outlook: about usual
Chance a departure is cancelled
0.5%0.9× usual
Chance a departure leaves 60+ min late
13%0.8× usual

Forecast weather: 35% chance of fog at Seattle; 88% chance of rain at San Francisco

Forecast: WeatherTomorrow · incl. data from ECMWF (CC BY 4.0, modified) · About 3 departures a day on this route with this airline. · 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 Seattle to San Francisco flights today

same route · United Airlines
UA499departs 07:00
UA3925departs 09:00
UA1372departs 09:05
UA2831departs 09:05
UA5660departs 10:44
UA2416departs 13:16

If UA737 is cancelled, these are the other United Airlines nonstop flights from Seattle to San Francisco on the same day, with scheduled departure times in SEA 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 UA737 actually runs

Pro Flight Search has tracked every published board update for UA737 across the SEA and SFO boards: schedule changes, gate pushes and actual clocks. Early read: no clear pattern yet. Only 2 completed legs so far: landed -7 min. Not enough to call it.

The verdict above is that record speaking, so it reflects how UA737 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
10-30SEA 10:40SFO 12:59 12:51 (−8)
10-29SEA 10:40SFO 12:59 12:52 (−7)
10-28SEA 10:40SFO

Board clocks recorded as SEA and SFO published them.

Planning around UA737? 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: UA737 Seattle to San Francisco on-time performance, measured from the SEA and SFO airport boards.

Canonical URL
https://proflightsearch.com/flight/UA737
How we measure this →