SEA → PITSeattle to Pittsburgh

live

Direct flights from Seattle (SEA) to Pittsburgh (PIT): 7 nonstop departures observed each week across 1 airline. 88% of the last 8 operated flights arrived within 15 minutes of schedule. The median arrival is 13 minutes early. No cancellations were recorded across the 8 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 10 October 2026 at 07:22 UTC.

SEA Seattle busy · +23
PIT Pittsburgh smooth · +0
3,411 km · ~4h 52m est.
departs 12:497x weekly
Runs reliable · 1 airline · 7x weekly · nonstop
88% on time

of the last 8 operated SEA → PIT flights arrived within 15 minutes

Median arrival delay is −13 min. 0 of 8 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →

Median arrival−13 minacross the last 8 operated legs
Flight time~4h 52mestimated from route distance
Weekly departures7x1 direct airline on the leg

Who flies it

observed on the boards · 7 days
Alaska AirlinesAS88% on time

Flights AS412 varies daily

History

operated legs · board outcomes
10-09AS412arrived+4
10-08AS412dep +10 → arr−2
10-07AS412arrived−19
10-06AS412arrived−41
10-05AS412arrived−13
10-04AS412arrived−24
10-03AS412arrived+52
10-02AS77arrived−21

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 +23 min busy ⛅ overcast · E 6 kt Full SEA delay board →
PITPittsburgh +0 min smooth 🌤 few clouds · N 0 kt Full PIT delay board →

Weather lens

Current conditions put the pressure at PIT: 35% odds of a 15+ minute delay and around +7 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 records official board updates for nonstop SEA to PIT 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 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?

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.

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 7 flights a week (daily). Since one carrier owns the route, a single disruption tends to ripple through the day.

What does the route health score measure?

A blend of departure-side delay at SEA and arrival-side delay at PIT, computed from rolling delay windows (refreshed every 40 minutes) with a daily-rollup fallback. Current MVFR, IFR, or LIFR endpoint weather caps the score when flight rules can limit throughput. Higher is healthier: 100 means operations are clean at both ends.