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

Tokyo ⇄ Seattle-Tacoma International NRT–SEA

Airlines flew 1,454 flights between Tokyo, Japan NRT in Tokyo, JP and Seattle-Tacoma International SEA in Seattle, WA in the twelve months to July 2026, both directions together: 287,991 passengers in 347,941 seats, 83% of them filled, and 18,910,723 pounds of freight. 4,768 miles, about 250 minutes in the air, on 5 airlines: Japan Air Lines Co. Ltd. (730), Alaska Airlines Inc. (420), Hawaiian Airlines Inc. (302), Korean Air Lines Co. Ltd. (1) and 1 more.

1,454
flights, twelve months
NRT-SEA: 725 · SEA-NRT: 729
287,991
passengers
83% of seats filled
4,768
miles
about 250 minutes airborne
5
airlines
4 aircraft types

Flights by month both directions

03162941251/254/257/2510/251/264/261257/26
By month, as a table
flights
1/2562
2/2555
3/2562
4/2561
5/25101
6/25120
7/25124
8/25125
9/25120
10/25124
11/25118
12/25122
1/26124
2/26111
3/26124
4/26118
5/26124
6/26119
7/26125

Passengers by month

06,97513,95020,92427,8991/254/257/2510/251/264/2625,2227/26
By month, as a table
passengers
1/2510,747
2/259,752
3/2511,064
4/2510,948
5/2519,369
6/2524,241
7/2523,805
8/2523,881
9/2522,326
10/2525,034
11/2523,244
12/2521,882
1/2623,356
2/2621,825
3/2627,899
4/2624,475
5/2624,592
6/2624,255
7/2625,222

The airlines twelve months, both directions

AirlineFlightsPassengersSeats filledService
Japan Air Lines Co. Ltd. JL730122,15286%scheduled passenger service
Alaska Airlines Inc. AS420100,01382%scheduled passenger service
Hawaiian Airlines Inc. HA30265,58478%scheduled passenger service
Korean Air Lines Co. Ltd. KE10scheduled cargo service
United Air Lines Inc. UA124294%scheduled passenger service

The aircraft as the airlines report their types

AircraftFlightsSeats a flightPassengers
B787-900 Dreamliner939219172,311
Airbus Industrie A330-200512278115,324
B787-800 Dreamliner2186356
Boeing B747-8100

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

725 flights of 362 scheduled, 143,343 passengers in 173,542 seats, 15,473,529 pounds of freight. Japan Air Lines Co. Ltd. 365; Alaska Airlines Inc. 209; Hawaiian Airlines Inc. 151.

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

729 flights of 361 scheduled, 144,648 passengers in 174,399 seats, 3,437,194 pounds of freight. Japan Air Lines Co. Ltd. 365; Alaska Airlines Inc. 211; Hawaiian Airlines Inc. 151; Korean Air Lines Co. Ltd. 1; United Air Lines Inc. 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: Tokyo, Japan NRT and Seattle-Tacoma International SEA; all routes.