AS1898Alaska Airlines · PHL → SEA
live · 14m ago
Route confirmed Alaska Airlines

AS1898 PhiladelphiaPHL · 11:00 SeattleSEA · 09:51

AS1898 by Alaska Airlines flies from Philadelphia (PHL) to Seattle (SEA) for the Wed, Sep 9 departure.

Right nowEn route to Seattle · off blocks 10:52 · 8 min early
En route

en route from PHL to SEA

En routeAS1898 · position estimated
PHLPhiladelphiaSEASeattle
Estimated from the boards

Board estimate · gate and arrival times. Off blocks 10:52 · typical taxi-out at PHL ≈ 7.7 min. No receiver coverage over open ocean.

Typical gate push−1 minmedian posted departure
Typical arrival−18 minmedian over 1 operations
Wins back in air~17 minmedian gate push vs arrival · how planes make up time →

Where the minutes go

last 7 operations · gate push → arrival
0+30+60+90 min
09-09
−8 gate
09-08
−10 gate · −18 arrival
09-07
+7 gate
09-06
−16 gate
09-05
+15 gate
09-04
−1 gate
09-03
+9 gate

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

The last 30 days

arrival outcome per operation

median arrival −18 min · 0 cancelled · 8 operations tracked

The route today

live boards
PHLPhiladelphiaOn-time likelyPHL delay board →
SEASeattleOn-time likelySEA delay board →
PHL→SEAevery 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
0.7%Chance of cancellation
+13 minAvg hub delay right now

Conditions at PHL and SEA are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. For this route and airline, 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 →

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 Philadelphia to Seattle flights today

same route · Alaska Airlines
AS443departs 22:59

If AS1898 is cancelled, this is the other Alaska Airlines nonstop flight from Philadelphia to Seattle on the same day, with scheduled departure times in PHL local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →

How AS1898 actually runs

Pro Flight Search has tracked every published board update for AS1898 across the PHL and SEA boards: schedule changes, gate pushes and actual clocks. Usually lands ~14 min early. Based on 1 confirmed landing · 1/1 within 15 min of schedule. Pushes back late but makes up time in the air.

The verdict above is that record speaking, so it reflects how AS1898 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
09-09PHL 11:00 10:52 (−8)SEA 09:51
09-08PHL 11:00 10:50 (−10)SEA 09:51 09:33 (−18)
09-07PHL 11:02 11:09 (+7)SEA 09:53
09-06PHL 11:02 10:46 (−16)SEA 09:53
09-05PHL 11:02 11:17 (+15)SEA 09:53
09-04PHL 11:02 11:01 (−1)SEA 09:53
09-03PHL 11:02 11:11 (+9)SEA 09:53
09-02PHL 11:02 10:55 (−7)SEA 09:53

Aircraft

Recent tails: N285AK, N570AS, N493AS, N954AK.

Board clocks recorded as PHL and SEA published them.

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 — AS1898 Philadelphia to Seattle on-time performance, measured from the PHL and SEA airport boards.

Canonical URL
https://proflightsearch.com/flight/AS1898
How we measure this →