AS618Alaska Airlines · SEA → STL
live · 51m ago
Route confirmed Alaska Airlines

AS618 SeattleSEA · 18:03 St LouisSTL · 23:59

AS618 by Alaska Airlines flies from Seattle (SEA) to St Louis (STL) for the Fri, Oct 30 departure.

Right nowLanded in St Louis · position data
00:02

arrived at STL · 4 min late

Typical arrival−21 minmedian over 4 operations

Where the minutes go

last 4 operations · gate push → arrival
0+30+60+90 min
10-30
−2 arrival
10-29
−30 arrival
10-28
−24 arrival
10-27
−19 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 →
STLSt LouisOn-time likelySTL delay board →
SEA→STLevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
38%Chance of 15+ min delay
1.3%Chance of cancellation
+8 minTypical airport delay in this weather

Conditions at SEA and STL 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 St Louis with Alaska Airlines · Sat 31 Oct, local date

Outlook: about usual
Chance a departure is cancelled
0.4%1.2× usual
Chance a departure leaves 60+ min late
6.8%0.7× usual

Forecast weather: 44% chance of fog at Seattle

Forecast: WeatherTomorrow · incl. data from ECMWF (CC BY 4.0, modified) · About 2 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 St Louis flights today

same route · Alaska Airlines
AS388departs 08:13
AS647departs 09:40

If AS618 is cancelled, these are the other Alaska Airlines nonstop flights from Seattle to St Louis 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 AS618 actually runs

Pro Flight Search has tracked every published board update for AS618 across the SEA and STL boards: schedule changes, gate pushes and actual clocks. Early read: no clear pattern yet. Only 3 completed legs so far: landed -19 min. Not enough to call it.

The verdict above is that record speaking, so it reflects how AS618 operates rather than what the timetable promises. Numbers refresh as new flights operate.

Technical record

How this operation is measured

board clocksaircraft

Board log

scheduled → actual, per operation
10-30SEA 18:03STL 23:59 23:57 (−2)
10-29SEA 18:03STL 23:59 23:29 (−30)
10-28SEA 18:03STL 23:59 23:35 (−24)
10-27SEA 18:03STL 23:59 23:40 (−19)
10-26SEA 18:03STL

Aircraft

Recent tails: N558AS, N553AS, N508AS.

Board clocks recorded as SEA and STL published them.

Planning around AS618? 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: AS618 Seattle to St Louis on-time performance, measured from the SEA and STL airport boards.

Canonical URL
https://proflightsearch.com/flight/AS618
How we measure this →