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Flights from Portland to St Louis

Did you mean Flights from St Louis to Portland?

Flightmap/Flights from PWM/PWM to STL

Portland

United States

PWM

Portland International Jetport Airport

St Louis

United States

STL

Lambert St Louis International Airport

Route
Published service includes stops
Distance
1,093 miles
Marketing airlines
2 airlines
Aircraft
2 aircraft types
Dates
Oct 24, 2026 – Oct 11, 2027

Observed award fares

A sample of one-way prices for one traveler from Roame’s fare cache. Points, fees, and seats describe the same observation. Availability can change; confirm with the loyalty program before transferring points.

Departure window: 2026-10-23 – 2026-11-21.

No recent fares appear in this limited preview. This does not mean the route is sold out. Use the search controls to check other dates and routes.

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Explore these airports and cities

  • Flights from PWM
  • Flights to STL

Portland to St Louis route overview

Portland International Jetport Airport (PWM) serves Portland; Lambert St Louis International Airport (STL) serves St Louis.

The airports are 1,093 miles apart by great-circle distance.

Roame's current schedule feed lists service with stops from PWM to STL, but no nonstop service.

Marketing airlines listed in the current schedule, including codeshare sellers, are United Airlines (UA) and Southwest Airlines (WN). This list does not identify the operating airline for each flight; check the flight details before booking.

Published schedule dates span Oct 24, 2026 – Oct 11, 2027.

Marketing airlines on the Portland to St Louis route

These are marketing airlines, including codeshare sellers. This list does not identify the operating airline for each flight; check the flight details before booking.

  • United Airlines (UA)Codeshare only

Airline alliance affiliations represented: Star Alliance

Aircraft flying from PWM to STL

Frequently asked questions

Which airports serve the Portland to St Louis route?

Portland International Jetport Airport (PWM) is the origin airport and Lambert St Louis International Airport (STL) is the destination airport.

How far is St Louis from Portland?

PWM and STL are approximately 1,093 miles apart by great-circle distance.

Are there direct flights from PWM to STL?

No. Roame's current schedule feed lists service with stops from PWM to STL, but no nonstop service.

Which airlines market flights from PWM to STL?

Marketing airlines listed in the current schedule, including codeshare sellers, are United Airlines (UA) and Southwest Airlines (WN). This list does not identify the operating airline for each flight; check the flight details before booking.

Which aircraft fly from PWM to STL?

Aircraft listed in the current schedule include 7S7 and Embraer 175 (long wing) (E7W).

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