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

Seattle-Tacoma International ⇄ Amsterdam SEA–AMS

Airlines flew 1,140 flights between Seattle-Tacoma International SEA in Seattle, WA and Amsterdam, Netherlands AMS in Amsterdam, NL in the twelve months to July 2026, both directions together: 279,194 passengers in 320,256 seats, 87% of them filled, and 10,606,899 pounds of freight. 4,886 miles, about 547 minutes in the air, on 1 airline: Delta Air Lines Inc. (1,140).

1,140
flights, twelve months
SEA-AMS: 572 · AMS-SEA: 568
279,194
passengers
87% of seats filled
4,886
miles
about 547 minutes airborne
1
airline
3 aircraft types

Flights by month both directions

03162931241/254/257/2510/251/264/261247/26
By month, as a table
flights
1/2559
2/2556
3/2567
4/25120
5/25124
6/25120
7/25123
8/25124
9/25115
10/25110
11/2560
12/2562
1/2658
2/2656
3/2668
4/26119
5/26124
6/26120
7/26124

Passengers by month

08,16416,32824,49332,6571/254/257/2510/251/264/2630,8217/26
By month, as a table
passengers
1/2514,038
2/2512,844
3/2516,873
4/2528,257
5/2530,044
6/2529,560
7/2531,124
8/2532,657
9/2528,859
10/2525,832
11/2515,006
12/2515,703
1/2613,238
2/2613,028
3/2617,109
4/2628,744
5/2629,794
6/2628,403
7/2630,821

The airlines twelve months, both directions

AirlineFlightsPassengersSeats filledService
Delta Air Lines Inc. DL1,140279,19487%scheduled passenger service

The aircraft as the airlines report their types

AircraftFlightsSeats a flightPassengers
Airbus Industrie A330-9001,118281273,988
Airbus Industrie A330-300/333212824,983
Airbus Industrie A350-9001275223

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

572 flights of 576 scheduled, 141,701 passengers in 160,678 seats, 4,162,976 pounds of freight. Delta Air Lines Inc. 572.

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

568 flights of 576 scheduled, 137,493 passengers in 159,578 seats, 6,443,923 pounds of freight. Delta Air Lines Inc. 568.

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: Seattle-Tacoma International SEA and Amsterdam, Netherlands AMS; all routes.