AS1503Alaska Airlines · SAN → SEA
live · 6m ago
Route confirmed Alaska Airlines

AS1503 San DiegoSAN SeattleSEA

AS1503 by Alaska Airlines flies from San Diego (SAN) to Seattle (SEA).

Right nowNext departure today Operates daily
11:10

scheduled from SAN

The route today

live boards
SANSan DiegoOn-time likelySAN delay board →
SEASeattleHigh riskSEA delay board →
SAN→SEAevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
49%Chance of 15+ min delay
1.2%Chance of cancellation
+17 minTypical airport delay in this weather

Conditions at SAN 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 San Diego

Forecast

Sun 8 Nov, local date

High28°Clikely 26°C to 30°C
Low16°Clikely 15°C to 18°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 Seattle

Forecast

Sun 8 Nov, local date

High13°Clikely 12°C to 15°C
Low8°Clikely 6°C to 10°C
  • 89% 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.

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 Diego to Seattle flights today

same route · Alaska Airlines
AS608departs 06:15
AS792departs 09:15
AS9800departs 11:00
AS1366departs 11:10
AS1368departs 11:32
AS683departs 13:48

If AS1503 is cancelled, these are the other Alaska Airlines nonstop flights from San Diego to Seattle on the same day, with scheduled departure times in SAN 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 AS1503 actually runs

Pro Flight Search has tracked every published board update for AS1503 across the SAN and SEA boards: schedule changes, gate pushes and actual clocks. Combined risk score: 33.0/100. Based on airport operations, weather, and cached board history at SAN and SEA.

The verdict above is that record speaking, so it reflects how AS1503 operates rather than what the timetable promises. Numbers refresh as new flights operate.

Planning around AS1503? 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: AS1503 San Diego to Seattle on-time performance, measured from the SAN and SEA airport boards.

Canonical URL
https://proflightsearch.com/flight/AS1503
How we measure this →