Routes and flights · the DOT's airline reports, August 2025 to July 2026

Seattle-Tacoma International ⇄ Buffalo Niagara International SEA–BUF

Airlines flew 1 flights between Seattle-Tacoma International SEA in Seattle, WA and Buffalo Niagara International BUF in Buffalo, NY in the twelve months to July 2026, both directions together: 175 passengers in 194 seats, 90% of them filled, and 1,464 pounds of freight. 2,122 miles, about 313 minutes in the air, on 1 airline: Delta Air Lines Inc. (1). Planning to fly it yourself? The weather and winds along this route right now.

flights, twelve months

SEA-BUF: 1

175

passengers

90% of seats filled

2,122

miles

about 313 minutes airborne

airline

1 aircraft type

Flights by month both directions

By month, as a table

	flights
9/25	1

Passengers by month

By month, as a table

	passengers
9/25	175

The airlines twelve months, both directions

Airline	Flights	Passengers	Seats filled	Service
Delta Air Lines Inc. DL	1	175	90%	scheduled passenger service

The aircraft as the airlines report their types

Aircraft	Flights	Seats a flight	Passengers
Airbus Industrie A321-200n	1	194	175

SEA → BUF this direction alone · flown September 2025 to September 2025

1 flights, 175 passengers in 194 seats, 1,464 pounds of freight. Delta 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: Seattle-Tacoma International SEA and Buffalo Niagara International BUF; all routes.