Flight Check

Best Airline: SEA to JFK

Seattle to New York — airline reliability comparison

Delta Air Lines is the most reliable airline on the SEA to JFK route with a 82% on-time rate, compared to JetBlue Airways at 65%. Based on 4,684 flights tracked.

This route involves weather-prone airports and high-congestion airports, which can affect reliability regardless of airline.

Source: Bureau of Transportation Statistics. Updated October 2026.

On-Time Rate by Airline

Delta Air Lines82%
Alaska Airlines73%
JetBlue Airways65%

SEA to JFK Airline Comparison

AirlineOn-Time %Cancel %Avg DelayFlights
Delta Air LinesDLBest82%1.7%63m4,684
Alaska AirlinesAS73%1.8%52m4,879
JetBlue AirwaysB6Worst65%2.3%92m1,010

Route Overview

76%
Overall On-Time
63m
Avg Delay
1.7%
Cancel Rate
10,574
Total Flights
SEA to JFK Route DetailsReturn: JFK to SEA
SEA AirportJFK Airport

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