SEA → PITSeattle to Pittsburgh

live

Direct flights from Seattle (SEA) to Pittsburgh (PIT): 7 nonstop departures observed each week across 1 airline. 71% of the last 14 operated flights arrived within 15 minutes of schedule. The median arrival is on schedule. No cancellations were recorded across the 14 tracked flights. The nonstop covers 3,411 km, an estimated 4 hours 52 minutes in the air. Measured by Pro Flight Search from live flight boards at Seattle and Pittsburgh. Updated 17 August 2026 at 08:48 UTC.

SEA Seattle smooth · +8
PIT Pittsburgh heavy · +48
3,411 km · ~4h 52m est.
dep bank 09:34–22:377x weekly
Runs mixed · 1 airline · 7x weekly · nonstop
71% on time

of the last 14 operated SEA → PIT flights arrived within 15 minutes

Median arrival delay is +1 min. 0 of 14 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →

Search live fares for this route →
Median arrival+1 minacross the last 14 operated legs
Flight time~4h 52mestimated from route distance
Weekly departures7x1 direct airline on the leg
Cancelled0.0%recent route rate · 0 of 14

Current nonstop fares

SEA → PIT · one way · economy · 1 adult

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TodayChecking…Direct airline fares
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The week

scheduled departures · origin local time
06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Alaska Airlines

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 AirlinesAS71% on time

Flights AS412 09:34 daily · AS77 22:37 daily

History

operated legs · board outcomes
08-16AS412dep +74 → arr+36
08-16AS77departed+6
08-15AS412dep +33 → arr+1
08-15AS77dep +12 → arr−20
08-14AS412dep +32 → arr+0
08-14AS77dep +15 → arr−21
08-13AS412dep +102 → arr+58
08-13AS77dep +92 → arr+62
08-12AS412dep +20 → arr−28
08-12AS77dep +65 → arr+21
08-11AS412dep +21 → arr−26
08-11AS77dep +9 → arr−31
08-10AS412dep +14 → arr−32
08-10AS77dep +41 → arr+1

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 +8 min smooth 🌤 clear · N 0 kt Full SEA delay board →
PITPittsburgh +48 min heavy 🌫 overcast · W 5 kt Full PIT delay board →

Weather lens

Current conditions put the pressure at SEA and PIT: 37% odds of a 15+ minute delay and around +4 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 Pittsburgh route actually runs

Pro Flight Search tracks every published board update for nonstop SEA to PIT flights: 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. Fares link straight to the operating airline with no markups.

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 Pittsburgh (PIT) route reliability, measured from operated flights on official airport boards.

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

SEA to PIT questions

Is SEA–PIT running on time right now?

Some delays possible. The arrival side at PIT is the weaker end, route health score 62/100. The airports section above carries the live status and delay window at both ends.

Morning or evening flight on SEA–PIT?

Operators schedule morning departures around 09:34 and evening departures around 22:37 from SEA. Earlier flights typically land before destination-airport delays accumulate later in the day; check the PIT delay card to confirm conditions when you'd arrive.

How long is the flight from SEA to PIT?

Great-circle distance is 3,411 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 271–322 min gate-to-gate on this route.

How often does SEA–PIT fly?

Alaska Airlines runs the route with about 14 flights a week (daily). Since one carrier owns the route, a single disruption tends to ripple through the day.