Which airline is most reliable for SEA (Seattle) to PHX (Phoenix)?

The most reliable airline on the SEA to PHX route is American Airlines, with an on-time arrival rate of 86%.

How often are flights delayed from SEA to PHX?

About 20% of flights from SEA to PHX experience delays. 80% arrive on time.

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

When flights from SEA to PHX are delayed, the average delay is approximately 56 minutes.

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

With 80% of SEA to PHX flights arriving on time and an average delay of 56 minutes when late, a connection under 60 minutes at PHX is risky. We recommend at least 75-90 minutes for domestic connections after this route.

SEA → PHX

SEA (Seattle) to PHX (Phoenix)

SEA (Seattle) to PHX (Phoenix) flights arrive on time 80% of the time. The most reliable airline on this route is American Airlines at 86%. The average delay is 56 minutes. Delays on this route are most often caused by the airline (crew, maintenance, or boarding).

Source: Bureau of Transportation Statistics. Updated July 2026.

SEA → PHX on-time performance by month

JanFebMarAprMayJunJulAugSepOctNovDec

Worse

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This route is on time most of the time. About 80% of flights arrive on schedule.

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

Accurate?

American Airlines is significantly more reliable on this route at 86% on time vs Frontier Airlines at 71%.

Airline Comparison

American Airlines leads at 86% on time; Frontier Airlines trails at 71%.

Accurate?

Good to know

Departing from SEA

80% on time

Expect ~21 min sitting on the taxiway after your gate pushes back. SEA has long runway queues.

TSA is currently ~12 min. Best time: 4 AM (about 5 min).

More about SEA →

Arriving at PHX

82% on time

When flights into PHX are late, the average delay is 69 minutes. Build buffer if you have ground plans.

If connecting at PHX: TSA is ~9 min right now. Allow at least 60 minutes for a domestic connection.

More about PHX →Connection times at PHX →

Flight cancelled or delayed?

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SEA Airport PHX Airport

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