How often are SEA to PSC flights on time?

Flights from Seattle (SEA) to Pasco (PSC) arrive on time 88% of the time across 18,490 flights of official data.

Which airline is most reliable on the SEA to PSC route?

Delta Air Lines has the best on-time record on this route at 92% across 6,940 flights.

Route reliability

Flights from Seattle to Pasco arrive on time 88% of the time across 18,490 flights. Here’s how each airline really performs.

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On-time rate

18,490 flights

Airline	On-time	Flights
Delta Air Lines	92%	6,940
Alaska Airlines	86%	11,550

On-time = arrived within 15 minutes of schedule, per BTS TranStats. Compare the reverse leg PSC → SEA.

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Score real SEA–PSC flights on reliability, weather, and connection safety — not just price.

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