Direct flights from St Louis to Portland

Did you mean Flights from Portland to St Louis?

St Louis

United States

STL

Lambert St Louis International Airport

Portland

United States

PDX

Portland International Airport

Route: Nonstop service available
Distance: 1,704 miles
Marketing airlines: 4 airlines
Aircraft: 6 aircraft types
Dates: Oct 19, 2026 – Sep 29, 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.

St Louis to Portland route overview

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

The airports are 1,704 miles apart by great-circle distance.

Roame's current schedule feed shows nonstop service from STL to PDX.

Marketing airlines listed in the current schedule, including codeshare sellers, are Alaska Airlines (AS), Sun Country (SY), 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 19, 2026 – Sep 29, 2027.

Marketing airlines on the St Louis to Portland 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.

Airline alliance affiliations represented: Oneworld, Star Alliance

Aircraft flying from STL to PDX

Frequently asked questions

Which airports serve the St Louis to Portland route?

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

How far is Portland from St Louis?

STL and PDX are approximately 1,704 miles apart by great-circle distance.

Are there direct flights from STL to PDX?

Yes. Roame's current schedule feed shows nonstop service from STL to PDX.

Which airlines market flights from STL to PDX?

Which aircraft fly from STL to PDX?

Aircraft listed in the current schedule include Airbus A319 (319), Boeing 737-800 (738), Boeing 737-800 Winglets (73H), Boeing 737-900 Winglets (73J), Boeing 737 MAX 8 (7M8) and 7S7.