St. Louis Downtown ⇄ Seattle-Tacoma International CPS–SEA
Airlines flew 6 flights between St. Louis Downtown CPS in Cahokia/St Louis, IL and Seattle-Tacoma International SEA in Seattle, WA in the twelve months to July 2026, both directions together: 143 passengers in 660 seats, 22% of them filled. 1,725 miles, about 232 minutes in the air, on 2 airlines: Delta Air Lines Inc. (4), Sun Country Airlines d/b/a MN Airlines (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 | |
|---|---|
| 8/25 | 1 |
| 9/25 | 2 |
| 4/26 | 2 |
| 6/26 | 1 |
Passengers by month
By month, as a table
| passengers | |
|---|---|
| 8/25 | 0 |
| 9/25 | 62 |
| 4/26 | 81 |
| 6/26 | 0 |
The airlines twelve months, both directions
| Airline | Flights | Passengers | Seats filled | Service |
|---|---|---|---|---|
| Delta Air Lines Inc. DL | 4 | 62 | 22% | charter passenger service |
| Sun Country Airlines d/b/a MN Airlines SY | 2 | 81 | 22% | charter passenger service |
The aircraft as the airlines report their types
| Aircraft | Flights | Seats a flight | Passengers |
|---|---|---|---|
| Boeing 757-200 | 4 | 72 | 62 |
| Boeing 737-800 | 2 | 186 | 81 |
CPS → SEA this direction alone · flown August 2025 to June 2026
4 flights, 102 passengers in 402 seats. Delta Air Lines Inc. 3; Sun Country Airlines d/b/a MN Airlines 1.
SEA → CPS this direction alone · flown September 2025 to April 2026
2 flights, 41 passengers in 258 seats. Delta Air Lines Inc. 1; 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: St. Louis Downtown CPS and Seattle-Tacoma International SEA; all routes.