PDX → STLPortland to St Louis

live

Direct flights from Portland (PDX) to St Louis (STL): 9 nonstop departures observed each week across 2 airlines. 78% of the last 9 operated flights arrived within 15 minutes of schedule. The median arrival is 16 minutes early. 1 of the 9 tracked flights was cancelled. The nonstop covers 2,742 km, an estimated 4 hours 1 minutes in the air. Measured by Pro Flight Search from live flight boards at Portland and St Louis. Updated 7 September 2026 at 02:08 UTC.

PDX Portland smooth · +0
STL St Louis smooth · +0
2,742 km · ~4h 01m est.
dep bank 09:45–11:169x weekly
Runs mixed · 2 airlines · 9x weekly · nonstop
78% on time

of the last 9 operated PDX → STL flights arrived within 15 minutes

Median arrival delay is −16 min. 1 of 9 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →

Median arrival−16 minacross the last 9 operated legs
Flight time~4h 01mestimated from route distance
Weekly departures9x2 direct airlines on the leg

The week

scheduled departures · origin local time
06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Alaska AirlinesSouthwest Airlines

Each mark is a scheduled departure at its origin-local time, observed operating in the last 7 days. Today is highlighted.

Who flies it

observed on the boards · 7 days
Alaska AirlinesAS71% on time

Flights AS1318 11:16 daily

Southwest AirlinesWN

Flights WN400 09:45 Sa · WN3199 varies Su

History

operated legs · board outcomes
09-06AS1318dep −6 → arr−30
09-06WN3199dep −4 → arr−12
09-05AS1318cancelledCNX
09-05WN400dep −4 → arr−11
09-04AS1318dep −12 → arr−22
09-03AS1318dep +4 → arr−19
09-02AS1318dep +123 → arr+105
09-01AS1318dep −2 → arr−16
08-31AS1318dep −8 → arr−28

Actual board outcomes rather than schedules, paired departure and arrival per flight and day.

Full board history, day by day →

Airports right now

live boards
PDXPortland +0 min smooth 🌤 mostly cloudy · SSW 4 kt Full PDX delay board →
STLSt Louis +0 min smooth 🌤 overcast · NE 8 kt Full STL delay board →

Weather lens

Current conditions put the pressure at PDX and STL: 43% odds of a 15+ minute delay and around +9 min expected when it bites, measured from this route's own weather-matched delay history. See live delays → · Weather risk by airport →

How the Portland to St Louis route actually runs

Pro Flight Search records official board updates for nonstop PDX to STL flights through the day: schedules, estimates, gate pushes and actual departures. The verdict above comes from operated flights, so it reflects what this route does rather than what the timetable promises.

Planning around a delay? Live airport delays · Weather delay risk map · Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure

Cite this data

Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.

Suggested citation

Pro Flight Search — Portland (PDX) to St Louis (STL) route reliability, measured from operated flights on official airport boards.

Canonical URL
https://proflightsearch.com/search-flights/PDX-STL
How we measure this →

PDX to STL questions

Is PDX–STL running on time right now?

Smooth skies ahead. Both endpoints currently score the same, route health score 100/100. The airports section above carries the live status and delay window at both ends.

Morning or evening flight on PDX–STL?

Operators schedule morning departures around 09:45 from PDX. Earlier flights typically land before destination-airport delays accumulate later in the day; check the STL delay card to confirm conditions when you'd arrive.

How long is the flight from PDX to STL?

Great-circle distance is 2,742 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 224–265 min gate-to-gate on this route.

How often does PDX–STL fly?

2 carriers operate this route, around 9 flights a week between them. Compare carrier days and times in the airline list above.