SEA → BOISeattle to Boise

live

Direct flights from Seattle (SEA) to Boise (BOI): 14 nonstop departures observed each week across 2 airlines. 83% of the last 6 operated flights arrived within 15 minutes of schedule. The median arrival is 6 minutes early. No cancellations were recorded across the 6 tracked flights. The nonstop covers 641 km, an estimated 1 hour 19 minutes in the air. Measured by Pro Flight Search from live flight boards at Seattle and Boise. Updated 24 October 2026 at 03:32 UTC.

Today, SEA → BOI

Fri 23 Oct · local times
  1. 07:17 AS248Alaska Departed Landed 09:50 −6
  2. 09:57 AS357Alaska Departed Landed 12:29 −6
  3. 11:20 AS3211Alaska Departed Landed 14:07 +17
  4. 14:45 DL4127Delta Air Lines Departed ·
  5. 15:51 AS2169Alaska Departed ·
  6. 16:02 DL3688Delta Air Lines Departed ·
  7. 17:40 AS2109Alaska Departed ·
  8. 19:35 DL3692Delta Air Lines Est. 19:30Departure not confirmed by the board ·
  9. 19:41 AS2173Alaska Departed ·
  10. 21:29 AS445Alaska On scheduleGate D7 ·
  11. 21:30 DL4090Delta Air Lines On scheduleGate B4 ·
  12. · AS467Alaska Departed Landed 14:55 −28
  13. · DL3678Delta Air Lines Departed Landed 11:34 +7
  14. · DL3750Delta Air Lines Departed Landed 09:46 −8
  15. · DL3959Delta Air Lines On schedule BOI est. 15:42 +22sched 15:20

Checked SEA board 19:22 · BOI board 15:03

SEA Seattle busy · +15
BOI Boise smooth · +5
641 km · ~1h 19m est.
dep bank 07:15–21:3014x weekly
Runs reliable · 2 airlines · 14x weekly · nonstop
83% on time

of the last 6 operated SEA → BOI flights arrived within 15 minutes

Median arrival delay is −6 min. 0 of 6 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →

Median arrival−6 minacross the last 6 operated legs
Flight time~1h 19mestimated from route distance
Weekly departures14x2 direct airlines on the leg

The week

scheduled departures · origin local time
06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Alaska AirlinesDelta Air Lines

Each mark is a scheduled departure at its origin-local time, observed operating in the last 7 days. Today is highlighted.

Who flies it

observed on the boards · 7 days
Alaska AirlinesAS

Flights AS248 07:17 daily · AS357 09:57 daily · AS3211 varies daily · AS467 12:48 daily

History

operated legs · board outcomes
10-23AS248arrived−6
10-23AS3211arrived+17
10-23AS357arrived−6
10-23AS467arrived−28
10-23DL3678arrived+7
10-23DL3750arrived−8

Actual board outcomes rather than schedules, paired departure and arrival per flight and day.

Full board history, day by day →

Airports right now

live boards
SEASeattle +15 min busy 🌤 few clouds · N 0 kt Full SEA delay board →
BOIBoise +5 min smooth 🌤 clear · WNW 7 kt Full BOI delay board →

Weather lens

Current conditions put the pressure at BOI: 43% odds of a 15+ minute delay and around +10 min expected when it bites, measured from this route's own weather-matched delay history. See live delays → · Weather risk by airport →

How the Seattle to Boise route actually runs

Pro Flight Search records official board updates for nonstop SEA to BOI flights through the day: schedules, estimates, gate pushes and actual departures. The verdict above comes from operated flights, so it reflects what this route does rather than what the timetable promises.

Planning around a delay? Live airport delays · Weather delay risk map · 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 — Seattle (SEA) to Boise (BOI) route reliability, measured from operated flights on official airport boards.

Canonical URL
https://proflightsearch.com/search-flights/SEA-BOI
How we measure this →

SEA to BOI questions

Is SEA–BOI running on time right now?

Smooth skies ahead. The departure side at SEA is the weaker end, route health score 85/100. The airports section above carries the live status and delay window at both ends.

Morning or evening flight on SEA–BOI?

Operators schedule morning departures around 07:15 and evening departures around 17:40 from SEA. Earlier flights typically land before destination-airport delays accumulate later in the day; check the BOI delay card to confirm conditions when you'd arrive.

How long is the flight from SEA to BOI?

Great-circle distance is 641 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 75–85 min gate-to-gate on this route.

How often does SEA–BOI fly?

2 carriers operate this route, around 102 flights a week between them. Compare carrier days and times in the airline list above.