AS2109Alaska Airlines · SEA → BOI
live · 7m ago
Route confirmed Alaska Airlines

AS2109 SeattleSEA · 17:40 BoiseBOI · 20:06

AS2109 by Alaska Airlines flies from Seattle (SEA) to Boise (BOI) for the Thu, Oct 29 departure.

Right nowOn time · gate C10E
17:40

departs SEA · on schedule

Typical arrival−15 minmedian over 4 operations

Where the minutes go

last 4 operations · gate push → arrival
0+30+60+90 min
10-29
−15 arrival
10-28
−15 arrival
10-27
−17 arrival
10-26
+53 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 →
BOIBoiseOn-time likelyBOI delay board →
SEA→BOIevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
42%Chance of 15+ min delay
0.8%Chance of cancellation
+10 minTypical airport delay in this weather

Conditions at SEA and BOI 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 Boise with Alaska Airlines · Fri 30 Oct, local date

Outlook: about usual
Chance a departure is cancelled
0.3%1.8× usual
Chance a departure leaves 60+ min late
7.8%1.1× usual

Forecast weather: 81% chance of rain at Seattle

Forecast: WeatherTomorrow · incl. data from ECMWF (CC BY 4.0, modified) · About 8 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 Boise flights today

same route · Alaska Airlines
AS248departs 07:17
AS9799departs 07:17
AS357departs 09:57
AS3211departs 11:20
AS2106departs 11:43
AS467departs 12:48

If AS2109 is cancelled, these are the other Alaska Airlines nonstop flights from Seattle to Boise 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 AS2109 actually runs

Pro Flight Search has tracked every published board update for AS2109 across the SEA and BOI boards: schedule changes, gate pushes and actual clocks. Usually lands on time. Based on 4 confirmed landings · 3/4 within 15 min of schedule.

The verdict above is that record speaking, so it reflects how AS2109 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
10-29SEA 17:40BOI 20:06 19:51 (−15)
10-28SEA 17:40BOI 20:06 19:51 (−15)
10-27SEA 17:40BOI 20:06 19:49 (−17)
10-26SEA 17:40BOI 20:06 20:59 (+53)

Aircraft

Recent tails: N669QX, N643QX, N625QX.

Board clocks recorded as SEA and BOI published them.

Planning around AS2109? 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: AS2109 Seattle to Boise on-time performance, measured from the SEA and BOI airport boards.

Canonical URL
https://proflightsearch.com/flight/AS2109
How we measure this →