Boeing Fld/King County International ⇄ St. Louis Lambert International BFI–STL
Airlines flew 6 flights between Boeing Fld/King County International BFI in Seattle, WA and St. Louis Lambert International STL in St Louis, MO in the twelve months to July 2026, both directions together: 124 passengers in 732 seats, 17% of them filled, and 26,369 pounds of freight. 1,710 miles, about 191 minutes in the air, on 3 airlines: United Parcel Service (2), Sun Country Airlines d/b/a MN Airlines (2), Global Crossing Airlines, Inc. (2). 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 | |
|---|---|
| 3/25 | 2 |
| 12/25 | 2 |
| 1/26 | 1 |
| 3/26 | 3 |
Passengers by month
By month, as a table
| passengers | |
|---|---|
| 3/25 | 75 |
| 12/25 | 0 |
| 1/26 | 0 |
| 3/26 | 124 |
The airlines twelve months, both directions
| Airline | Flights | Passengers | Seats filled | Service |
|---|---|---|---|---|
| United Parcel Service 5X | 2 | 0 | scheduled cargo service | |
| Sun Country Airlines d/b/a MN Airlines SY | 2 | 77 | 21% | charter passenger service |
| Global Crossing Airlines, Inc. GCA | 2 | 47 | 13% | charter passenger service |
The aircraft as the airlines report their types
| Aircraft | Flights | Seats a flight | Passengers |
|---|---|---|---|
| Boeing 757-200 | 2 | 0 | 0 |
| Boeing 737-800 | 2 | 186 | 77 |
| Airbus Industrie A320-100/200 | 2 | 180 | 47 |
BFI → STL this direction alone · flown March 2025 to March 2026
3 flights of 2 scheduled, 39 passengers in 186 seats, 26,369 pounds of freight. United Parcel Service 2; Sun Country Airlines d/b/a MN Airlines 1.
STL → BFI this direction alone · flown March 2025 to March 2026
3 flights, 85 passengers in 546 seats. Global Crossing Airlines, Inc. 2; Sun Country Airlines d/b/a MN Airlines 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 St. Louis Lambert International STL; all routes.