Portland International ⇄ St. Louis Lambert International PDX–STL
Airlines flew 226 flights between Portland International PDX in Portland, OR and St. Louis Lambert International STL in St Louis, MO in the twelve months to July 2026, both directions together: 32,611 passengers in 38,911 seats, 84% of them filled, and 6,224 pounds of freight. 1,708 miles, about 202 minutes in the air, on 2 airlines: Alaska Airlines Inc. (157), Southwest Airlines Co. (69). 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 | |
|---|---|
| 6/25 | 18 |
| 7/25 | 18 |
| 8/25 | 20 |
| 9/25 | 16 |
| 11/25 | 1 |
| 5/26 | 38 |
| 6/26 | 76 |
| 7/26 | 75 |
Passengers by month
By month, as a table
| passengers | |
|---|---|
| 6/25 | 2,487 |
| 7/25 | 2,542 |
| 8/25 | 2,896 |
| 9/25 | 2,344 |
| 11/25 | 78 |
| 5/26 | 5,227 |
| 6/26 | 11,365 |
| 7/26 | 10,701 |
The airlines twelve months, both directions
| Airline | Flights | Passengers | Seats filled | Service |
|---|---|---|---|---|
| Alaska Airlines Inc. AS | 157 | 22,294 | 80% | scheduled passenger service |
| Southwest Airlines Co. WN | 69 | 10,317 | 92% | scheduled passenger service |
The aircraft as the airlines report their types
| Aircraft | Flights | Seats a flight | Passengers |
|---|---|---|---|
| Boeing 737-900ER | 88 | 178 | 12,657 |
| Boeing B737 Max 900 | 57 | 178 | 8,015 |
| Boeing 737-800 | 36 | 170 | 5,628 |
| Boeing 737-700/700LR/Max 7 | 27 | 141 | 3,637 |
| Boeing B737 Max 800 | 18 | 175 | 2,674 |
PDX → STL this direction alone · flown June 2025 to July 2026
113 flights of 114 scheduled, 16,605 passengers in 19,321 seats, 1,703 pounds of freight. Alaska Airlines Inc. 78; Southwest Airlines Co. 35.
STL → PDX this direction alone · flown June 2025 to July 2026
113 flights of 114 scheduled, 16,006 passengers in 19,590 seats, 4,521 pounds of freight. Alaska Airlines Inc. 79; Southwest Airlines Co. 34.
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: Portland International PDX and St. Louis Lambert International STL; all routes.