Boeing Fld/King County International ⇄ San Francisco International BFI–SFO
Airlines flew 14 flights between Boeing Fld/King County International BFI in Seattle, WA and San Francisco International SFO in San Francisco, CA in the twelve months to July 2026, both directions together: 306 passengers in 1,548 seats, 20% of them filled, and 11,302 pounds of freight. 684 miles, about 91 minutes in the air, on 5 airlines: Delta Air Lines Inc. (9), Alaska Airlines Inc. (2), Air Canada (1), Kenmore Air Harbor (1) and 1 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 | |
|---|---|
| 2/25 | 2 |
| 3/25 | 1 |
| 4/25 | 3 |
| 5/25 | 1 |
| 6/25 | 3 |
| 7/25 | 1 |
| 8/25 | 3 |
| 9/25 | 1 |
| 10/25 | 1 |
| 11/25 | 1 |
| 1/26 | 2 |
| 3/26 | 1 |
| 5/26 | 3 |
| 7/26 | 2 |
Passengers by month
By month, as a table
| passengers | |
|---|---|
| 2/25 | 2 |
| 3/25 | 101 |
| 4/25 | 9 |
| 5/25 | 116 |
| 6/25 | 135 |
| 7/25 | 0 |
| 8/25 | 0 |
| 9/25 | 0 |
| 10/25 | 0 |
| 11/25 | 0 |
| 1/26 | 0 |
| 3/26 | 63 |
| 5/26 | 137 |
| 7/26 | 106 |
The airlines twelve months, both directions
| Airline | Flights | Passengers | Seats filled | Service |
|---|---|---|---|---|
| Delta Air Lines Inc. DL | 9 | 170 | 18% | charter passenger service |
| Alaska Airlines Inc. AS | 2 | 0 | 0% | charter passenger service |
| Air Canada AC | 1 | 67 | 96% | charter passenger service |
| Kenmore Air Harbor M5 | 1 | 0 | 0% | charter passenger service |
| United Air Lines Inc. UA | 1 | 69 | 39% | charter passenger service |
The aircraft as the airlines report their types
| Aircraft | Flights | Seats a flight | Passengers |
|---|---|---|---|
| Boeing 757-200 | 8 | 88 | 170 |
| Boeing B737 Max 900 | 3 | 178 | 69 |
| Pilatus PC-12 | 1 | 6 | 0 |
| Airbus Industrie A320-100/200 | 1 | 70 | 67 |
| Boeing 757-300 | 1 | 234 | 0 |
BFI → SFO this direction alone · flown February 2025 to July 2026
5 flights, 136 passengers in 505 seats, 11,302 pounds of freight. Air Canada 1; Alaska Airlines Inc. 1; Delta Air Lines Inc. 1; Kenmore Air Harbor 1; United Air Lines Inc. 1.
SFO → BFI this direction alone · flown February 2025 to July 2026
9 flights, 170 passengers in 1,043 seats. Delta Air Lines Inc. 8; 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: Boeing Fld/King County International BFI and San Francisco International SFO; all routes.