UA737United Airlines · SEA → SFO
live · 22m 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).

Right nowNext departure tomorrow Operates daily
10:40

scheduled from SEA

Typical arrival−13 minmedian over 3 operations

Where the minutes go

last 3 operations · gate push → arrival
0+73+145+218 min
11-04
−20 arrival
11-03
+218 arrival
11-02
−13 arrival

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

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
41%Chance of 15+ min delay
1.2%Chance of cancellation
+10 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 at Seattle

Forecast

Thu 5 Nov, local date

High14°Clikely 12°C to 15°C
Low9°Clikely 7°C to 10°C
  • 72% chance of rain

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 San Francisco

Forecast

Thu 5 Nov, local date

High21°Clikely 20°C to 22°C
Low12°Clikely 11°C to 13°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.

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
UA3926departs 10:30
UA2416departs 13:16
UA2281departs 13:19

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 -16 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
11-04SEA 10:40SFO 12:59 12:39 (−20)
11-03SEA 10:40SFO 12:59 16:37 (+218)
11-02SEA 10:40SFO 12:59 12:46 (−13)

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 →