The U.S. aircraft register, updated daily
Routes and flights · the DOT's airline reports, August 2025 to July 2026

John F Kennedy International ⇄ Seattle-Tacoma International JFK–SEA

Airlines flew 5,790 flights between John F Kennedy International JFK in New York, NY and Seattle-Tacoma International SEA in Seattle, WA in the twelve months to July 2026, both directions together: 895,286 passengers in 1,038,893 seats, 86% of them filled, and 15,988,771 pounds of freight. 2,422 miles, about 316 minutes in the air, on 9 airlines: Alaska Airlines Inc. (2,715), Delta Air Lines Inc. (2,577), JetBlue Airways (317), Eva Airways Corporation (158) and 5 more. Planning to fly it yourself? The weather and winds along this route right now.

5,790
flights, twelve months
JFK-SEA: 2,993 · SEA-JFK: 2,797
895,286
passengers
86% of seats filled
2,422
miles
about 316 minutes airborne
9
airlines
14 aircraft types

Flights by month both directions

01412824235641/254/257/2510/251/264/265277/26
By month, as a table
flights
1/25332
2/25326
3/25438
4/25457
5/25564
6/25550
7/25552
8/25559
9/25545
10/25543
11/25459
12/25457
1/26376
2/26345
3/26436
4/26468
5/26522
6/26553
7/26527

Passengers by month

024,09648,19272,28796,3831/254/257/2510/251/264/2685,9317/26
By month, as a table
passengers
1/2552,676
2/2549,177
3/2565,894
4/2572,531
5/2594,218
6/2591,637
7/2592,965
8/2596,383
9/2587,077
10/2584,178
11/2568,090
12/2570,166
1/2655,401
2/2649,541
3/2663,125
4/2666,257
5/2680,051
6/2689,086
7/2685,931

The airlines twelve months, both directions

AirlineFlightsPassengersSeats filledService
Alaska Airlines Inc. AS2,715408,29686%scheduled passenger service
Delta Air Lines Inc. DL2,577433,39887%scheduled passenger service
JetBlue Airways B631753,46684%scheduled passenger service
Eva Airways Corporation BR1580scheduled cargo service
China Airlines Ltd. CI160scheduled cargo service
Atlas Air Inc. 5Y40charter cargo service
American Airlines Inc. AA112666%scheduled passenger service
National Air Cargo Group Inc d/ba National Airlines N810charter passenger service
Kalitta Air LLC KAQ10charter cargo service

The aircraft as the airlines report their types

AircraftFlightsSeats a flightPassengers
Airbus Industrie A321-200n2,623194442,312
Boeing B737 Max 9001,186178180,742
Boeing 737-900ER1,162178176,686
Boeing 737-80031516043,769
Airbus Industrie A321Neoxlr20620035,145
Boeing 777-200ER/200LR/233LR15900
Boeing B737 Max 800581607,785
Boeing 757-200461667,075
Boeing B777-F1700
Boeing 767-300/300ER81851,025
Airbus Industrie A330-9003281663
Boeing 747-400300
Boeing 767-400/ER31590
Airbus Industrie A320-100/200115784

JFK → SEA this direction alone · flown January 2025 to July 2026

2,993 flights of 2,943 scheduled, 445,558 passengers in 520,963 seats, 12,245,442 pounds of freight, 204,974 pounds of mail. Alaska Airlines Inc. 1,362; Delta Air Lines Inc. 1,292; JetBlue Airways 159; Eva Airways Corporation 158; China Airlines Ltd. 16; Atlas Air Inc. 4; American Airlines Inc. 1; National Air Cargo Group Inc d/ba National Airlines 1.

SEA → JFK this direction alone · flown January 2025 to July 2026

2,797 flights of 2,916 scheduled, 449,728 passengers in 517,930 seats, 3,743,329 pounds of freight, 113,404 pounds of mail. Alaska Airlines Inc. 1,353; Delta Air Lines Inc. 1,285; JetBlue Airways 158; Kalitta Air LLC 1.

Source: the Bureau of Transportation Statistics' T-100 Segment table (all carriers). A flight is one departure performed on this segment; seats and passengers are the airlines' own monthly reports; "seats filled" is passengers divided by seats. The miles are the DOT's great-circle distance. Both ends: John F Kennedy International JFK and Seattle-Tacoma International SEA; all routes.