Which airline is most reliable for SEA (Seattle) to JFK (New York)?

The most reliable airline on the SEA to JFK route is Delta Air Lines, with an on-time arrival rate of 82%.

How often are flights delayed from SEA to JFK?

About 24% of flights from SEA to JFK experience delays. 76% arrive on time.

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

When flights from SEA to JFK are delayed, the average delay is approximately 63 minutes.

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

With 76% of SEA to JFK flights arriving on time and an average delay of 63 minutes when late, a connection under 60 minutes at JFK is risky. We recommend at least 75-90 minutes for domestic connections after this route.

SEA → JFK

SEA (Seattle) to JFK (New York)

SEA (Seattle) to JFK (New York) flights arrive on time 76% of the time. The most reliable airline on this route is Delta Air Lines at 82%. The average delay is 63 minutes. Delays on this route are most often caused by the airline (crew, maintenance, or boarding).

Source: Bureau of Transportation Statistics. Updated October 2026.

SEA → JFK on-time performance by month

JanFebMarAprMayJunJulAugSepOctNovDec

Worse

Better

This route is on time most of the time. About 76% of flights arrive on schedule.

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

Accurate?

Delta Air Lines is significantly more reliable on this route at 82% on time vs JetBlue Airways at 65%.

Airline Comparison

Delta Air Lines leads at 82% on time; JetBlue Airways trails at 65%.

Accurate?

Good to know

Departing from SEA

81% on time

Expect ~20 min sitting on the taxiway after your gate pushes back. SEA has long runway queues.

TSA is currently ~27 min. Best time: 4 AM (about 5 min).

More about SEA →

Arriving at JFK

78% on time

When flights into JFK are late, the average delay is 79 minutes. Build buffer if you have ground plans.

If connecting at JFK: TSA is ~43 min right now. Allow at least 60 minutes for a domestic connection.

JFK has a 2.4% cancellation rate — keep the airline app handy for rebooking.

More about JFK →Connection times at JFK →

Flight cancelled or delayed?

Check what Delta Air Lines owes you — refund rights, action plan, complaint email. Free.

Flying out of SEA? We'll brief you.

Delays, TSA, weather, gates — we'll let you know if something matters.

SEA Airport JFK Airport

Check the return: JFK → SEA

Flying this route?

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