Boeing Fld/King County International ⇄ Seattle-Tacoma International BFI–SEA
Airlines flew 56 flights between Boeing Fld/King County International BFI in Seattle, WA and Seattle-Tacoma International SEA in Seattle, WA in the twelve months to July 2026, both directions together: 3 passengers in 9,185 seats, 0% of them filled, and 17,738 pounds of freight. 6 miles, about 15 minutes in the air, on 6 airlines: Sun Country Airlines d/b/a MN Airlines (22), Alaska Airlines Inc. (14), Delta Air Lines Inc. (14), Atlas Air Inc. (4) and 2 more. Planning to fly it yourself? The weather and winds along this route right now.
Flights by month both directions
By month, as a table
| flights | |
|---|---|
| 1/25 | 1 |
| 2/25 | 3 |
| 3/25 | 8 |
| 4/25 | 8 |
| 5/25 | 2 |
| 6/25 | 11 |
| 7/25 | 1 |
| 8/25 | 4 |
| 9/25 | 2 |
| 10/25 | 3 |
| 11/25 | 3 |
| 12/25 | 5 |
| 1/26 | 6 |
| 2/26 | 4 |
| 3/26 | 5 |
| 4/26 | 4 |
| 5/26 | 8 |
| 6/26 | 8 |
| 7/26 | 4 |
Passengers by month
By month, as a table
| passengers | |
|---|---|
| 1/25 | 1 |
| 2/25 | 0 |
| 3/25 | 0 |
| 4/25 | 0 |
| 5/25 | 0 |
| 6/25 | 66 |
| 7/25 | 0 |
| 8/25 | 0 |
| 9/25 | 0 |
| 10/25 | 0 |
| 11/25 | 0 |
| 12/25 | 0 |
| 1/26 | 0 |
| 2/26 | 0 |
| 3/26 | 0 |
| 4/26 | 0 |
| 5/26 | 3 |
| 6/26 | 0 |
| 7/26 | 0 |
The airlines twelve months, both directions
| Airline | Flights | Passengers | Seats filled | Service |
|---|---|---|---|---|
| Sun Country Airlines d/b/a MN Airlines SY | 22 | 0 | 0% | charter passenger service |
| Alaska Airlines Inc. AS | 14 | 0 | 0% | charter passenger service |
| Delta Air Lines Inc. DL | 14 | 0 | 0% | charter passenger service |
| Atlas Air Inc. 5Y | 4 | 3 | 0% | charter passenger service |
| Kenmore Air Harbor M5 | 1 | 0 | 0% | charter passenger service |
| Omni Air International LLC X9 | 1 | 0 | 0% | charter passenger service |
The aircraft as the airlines report their types
| Aircraft | Flights | Seats a flight | Passengers |
|---|---|---|---|
| Boeing 737-800 | 26 | 182 | 0 |
| Boeing 757-200 | 13 | 99 | 0 |
| Boeing B737 Max 900 | 11 | 178 | 0 |
| Boeing 767-300/300ER | 5 | 240 | 3 |
| Pilatus PC-12 | 1 | 6 | 0 |
BFI → SEA this direction alone · flown February 2025 to July 2026
28 flights, 3 passengers in 4,494 seats, 7,906 pounds of freight. Sun Country Airlines d/b/a MN Airlines 11; Alaska Airlines Inc. 8; Delta Air Lines Inc. 6; Atlas Air Inc. 2; Kenmore Air Harbor 1.
SEA → BFI this direction alone · flown January 2025 to July 2026
28 flights, 0 passengers in 4,691 seats, 9,832 pounds of freight. Sun Country Airlines d/b/a MN Airlines 11; Delta Air Lines Inc. 8; Alaska Airlines Inc. 6; Atlas Air Inc. 2; Omni Air International 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: Boeing Fld/King County International BFI and Seattle-Tacoma International SEA; all routes.