DL1551 Los AngelesLAX · 19:10 SeattleSEA · 22:04
DL1551 by Delta Air Lines flies from Los Angeles (LAX) to Seattle (SEA) for the Tue, Nov 10 departure.
Same number through LAX → PDX → SEA
departs LAX · 30 min late
Where the minutes go
last 3 operations · gate push → arrivalThe bar is how late it left the gate; the ring is where it actually arrived. Board clocks, not estimates.
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at LAX and SEA 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 Los Angeles
ForecastWed 11 Nov, local date
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 Seattle
ForecastWed 11 Nov, local date
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 departuresEach mark is a scheduled departure at its origin-local time. Today is highlighted.
Other Los Angeles to Seattle flights today
same route · Delta Air LinesIf DL1551 is cancelled, these are the other Delta Air Lines nonstop flights from Los Angeles to Seattle on the same day, with scheduled departure times in LAX 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 DL1551 actually runs
Pro Flight Search has tracked every published board update for DL1551 across the LAX and SEA boards: schedule changes, gate pushes and actual clocks. Early read: no clear pattern yet. Only 3 completed legs so far: departed +5 min. Not enough to call it.
The verdict above is that record speaking, so it reflects how DL1551 operates rather than what the timetable promises. Numbers refresh as new flights operate.
How this operation is measured
Board log
scheduled → actual, per operationAircraft
Recent tails: N961DZ, N835DN.
Board clocks recorded as LAX and SEA published them.
Planning around DL1551? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.
Pro Flight Search: DL1551 Los Angeles to Seattle on-time performance, measured from the LAX and SEA airport boards.
https://proflightsearch.com/flight/DL1551
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