Boeing Fld/King County International ⇄ San Antonio International BFI–SAT
Airlines flew 3 flights between Boeing Fld/King County International BFI in Seattle, WA and San Antonio International SAT in San Antonio, TX in the twelve months to July 2026, both directions together: 322 passengers in 532 seats, 61% of them filled. 1,777 miles, about 201 minutes in the air, on 2 airlines: Sun Country Airlines d/b/a MN Airlines (2), Eastern Air Express, LLC (EAX) (1). 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 | 1 |
| 4/25 | 1 |
| 5/25 | 2 |
| 9/25 | 2 |
| 12/25 | 1 |
Passengers by month
By month, as a table
| passengers | |
|---|---|
| 3/25 | 0 |
| 4/25 | 0 |
| 5/25 | 72 |
| 9/25 | 203 |
| 12/25 | 119 |
The airlines twelve months, both directions
| Airline | Flights | Passengers | Seats filled | Service |
|---|---|---|---|---|
| Sun Country Airlines d/b/a MN Airlines SY | 2 | 203 | 55% | charter passenger service |
| Eastern Air Express, LLC (EAX) 37Q | 1 | 119 | 74% | charter passenger service |
The aircraft as the airlines report their types
| Aircraft | Flights | Seats a flight | Passengers |
|---|---|---|---|
| Boeing 737-800 | 2 | 186 | 203 |
| Boeing 737-700/700LR/Max 7 | 1 | 160 | 119 |
BFI → SAT this direction alone · flown March 2025 to December 2025
2 flights, 221 passengers in 346 seats. Eastern Air Express, LLC (EAX) 1; Sun Country Airlines d/b/a MN Airlines 1.
SAT → BFI this direction alone · flown April 2025 to September 2025
1 flights, 101 passengers in 186 seats. 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 San Antonio International SAT; all routes.