STL → PDXSt Louis to Portland

live

Direct flights from St Louis (STL) to Portland (PDX): 4 nonstop departures observed each week across 1 airline. The median arrival is 10 minutes late. No cancellations were recorded across the 4 tracked flights. 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 St Louis and Portland. Updated 20 October 2026 at 06:25 UTC.

STL St Louis smooth · +4
PDX Portland smooth · +0
2,742 km · ~4h 01m est.
dep bank 09:50–14:004x weekly
Running clean · 1 airline · 4x weekly · nonstop
96 / 100

route health from live STL and PDX delay boards

Median arrival delay is +10 min. 0 of 4 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →

Median arrival+10 minacross the last 4 operated legs
Flight time~4h 01mestimated from route distance
Weekly departures4x1 direct airline on the leg

The week

scheduled departures · origin local time
06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Southwest 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
Southwest AirlinesWN

Flights WN1315 09:50 Mo Th Fr · WN738 14:00 Sa

History

operated legs · board outcomes
10-19WN1315arrived−14
10-17WN738arrived+51
10-16WN1315arrived−20
10-15WN1315arrived+10

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
STLSt Louis +4 min smooth 🌤 scattered clouds · N 0 kt Full STL delay board →
PDXPortland +0 min smooth 🌤 few clouds · WSW 4 kt Full PDX delay board →

Weather lens

Current conditions put the pressure at STL: 41% 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 St Louis to Portland route actually runs

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

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

STL to PDX questions

Is STL–PDX running on time right now?

Smooth skies ahead. The departure side at STL is the weaker end, route health score 96/100. The airports section above carries the live status and delay window at both ends.

How long is the flight from STL to PDX?

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 STL–PDX fly?

Southwest Airlines runs the route with about 4 flights a week (mon, thu, fri, sat). Since one carrier owns the route, a single disruption tends to ripple through the day.

What does the route health score measure?

A blend of departure-side delay at STL and arrival-side delay at PDX, computed from rolling delay windows (refreshed every 40 minutes) with a daily-rollup fallback. Current MVFR, IFR, or LIFR endpoint weather caps the score when flight rules can limit throughput. Higher is healthier: 100 means operations are clean at both ends.