Which airline is most reliable for SEA (Seattle) to PDX (Portland)?

The most reliable airline on the SEA to PDX route is SkyWest Airlines, with an on-time arrival rate of 85%.

How often are flights delayed from SEA to PDX?

About 19% of flights from SEA to PDX experience delays. 81% arrive on time.

What's the average delay on SEA to PDX flights?

When flights from SEA to PDX are delayed, the average delay is approximately 47 minutes.

Is a short connection safe after a SEA to PDX flight?

With 81% of SEA to PDX flights arriving on time and an average delay of 47 minutes when late, a connection under 60 minutes at PDX is risky. We recommend at least 75-90 minutes for domestic connections after this route.

SEA → PDX

SEA (Seattle) to PDX (Portland)

SEA (Seattle) to PDX (Portland) flights arrive on time 81% of the time. The most reliable airline on this route is SkyWest Airlines at 85%. The average delay is 47 minutes. Delays on this route are most often caused by the airline (crew, maintenance, or boarding).

Source: Bureau of Transportation Statistics. Updated April 2026.

SEA → PDX on-time performance by month

JanFebMarAprMayJunJulAugSepOctNovDec

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This route is on time most of the time. About 81% of flights arrive on schedule.

Delays on this route are most often caused by the airline (crew, maintenance, or boarding).

Accurate?

SkyWest Airlines is significantly more reliable on this route at 85% on time vs Alaska Airlines at 70%.

Airline Comparison

SkyWest Airlines leads at 85% on time; Alaska Airlines trails at 70%.

Accurate?

Good to know

Departing from SEA

82% on time

Expect ~19 min sitting on the taxiway after your gate pushes back. SEA has long runway queues.

TSA is currently ~22 min. Best time: 4 AM (about 5 min).

More about SEA →

Arriving at PDX

83% on time

When flights into PDX are late, the average delay is 60 minutes. Build buffer if you have ground plans.

If connecting at PDX: TSA is ~15 min right now. Allow at least 60 minutes for a domestic connection.

More about PDX →Connection times at PDX →

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Data last updated April 2026. Source: Bureau of Transportation Statistics.