How often are ANC to SEA flights on time?

Flights from Anchorage (ANC) to Seattle (SEA) arrive on time 91% of the time across 43,567 flights of official data.

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

Delta Air Lines has the best on-time record on this route at 93% across 9,765 flights.

Route reliability

Flights from Anchorage to Seattle arrive on time 91% of the time across 43,567 flights. Here’s how each airline really performs.

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On-time rate

43,567 flights

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

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