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

Seattle-Tacoma International ⇄ Bellingham International SEA–BLI

Airlines flew 3,781 flights between Seattle-Tacoma International SEA in Seattle, WA and Bellingham International BLI in Bellingham, WA in the twelve months to July 2026, both directions together: 153,757 passengers in 186,971 seats, 82% of them filled, and 1,453,726 pounds of freight. 93 miles, about 31 minutes in the air, on 6 airlines: SkyWest Airlines Inc. (2,382), Federal Express Corporation (767), Empire Airlines Inc. (568), Horizon Air (54) and 2 more. Planning to fly it yourself? The weather and winds along this route right now.

3,781
flights, twelve months
SEA-BLI: 1,779 · BLI-SEA: 2,002
153,757
passengers
82% of seats filled
93
miles
about 31 minutes airborne
6
airlines
3 aircraft types

Flights by month both directions

0941882833771/254/257/2510/251/264/262547/26
By month, as a table
flights
1/25351
2/25326
3/25326
4/25323
5/25368
6/25361
7/25377
8/25371
9/25356
10/25376
11/25316
12/25374
1/26315
2/26290
3/26311
4/26317
5/26252
6/26249
7/26254

Passengers by month

04,0528,10412,15516,2071/254/257/2510/251/264/2612,8817/26
By month, as a table
passengers
1/2512,937
2/2512,210
3/2513,237
4/2512,231
5/2515,747
6/2515,635
7/2516,207
8/2516,158
9/2515,343
10/2515,467
11/2512,513
12/2514,555
1/2611,653
2/269,931
3/2610,529
4/2610,791
5/2611,745
6/2612,191
7/2612,881

The airlines twelve months, both directions

AirlineFlightsPassengersSeats filledService
SkyWest Airlines Inc. OO2,382150,03483%scheduled passenger service
Federal Express Corporation FX7670scheduled cargo service
Empire Airlines Inc. EM5680scheduled cargo service
Horizon Air QX543,57587%scheduled passenger service
Sun Country Airlines d/b/a MN Airlines SY900%charter passenger service
Alaska Airlines Inc. AS114892%scheduled passenger service

The aircraft as the airlines report their types

AircraftFlightsSeats a flightPassengers
Embraer ERJ-1752,43676153,609
Cessna 208 Caravan1,33500
Boeing 737-80010184148

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

1,779 flights of 1,775 scheduled, 74,092 passengers in 93,608 seats, 774,938 pounds of freight. SkyWest Airlines Inc. 1,190; Federal Express Corporation 321; Empire Airlines Inc. 235; Horizon Air 27; Sun Country Airlines d/b/a MN Airlines 6.

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

2,002 flights of 1,999 scheduled, 79,665 passengers in 93,363 seats, 678,788 pounds of freight. SkyWest Airlines Inc. 1,192; Federal Express Corporation 446; Empire Airlines Inc. 333; Horizon Air 27; Sun Country Airlines d/b/a MN Airlines 3; Alaska Airlines 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 Bellingham International BLI; all routes.