Portland (PDX) to St Louis (STL)
Flight time
≈ 4h 12m
Bearing
95° E
Portland (PDX) to St Louis (STL) is 1,704 miles (2,742 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies PDX–STL
Filed traffic dataIn May 2026, Alaska Airlines was the only carrier flying nonstop PDX–STL; the Boeing 737-900ER was the most common aircraft at 68% of departures; flights ran 78% full.
Departures
38
May 2026
Seats
6,730
both directions
Passengers
5,227
both directions
Load factor
77.7%
RPM ÷ ASM
Who flies PDX–STL?
Alaska Airlines was the only carrier to fly nonstop PDX–STL in May 2026 (38 departures).
- AS
38 departures · 6,730 seats
Share of departures100.0%77.7%
Load
What plane flies PDX–STL?
In May 2026, the Boeing 737-900ER flew 68% of PDX–STL departures — more than any other aircraft type.
- Boeing 737-900ER
26 departures · 76.8% load
68.4% - Boeing 737 MAX 9
10 departures · 79.0% load
26.3% - Boeing 737-800
2 departures · 83.2% load
5.3%
How has PDX–STL traffic changed?
Nonstop PDX–STL departures rose from 18 in June 2025 to 38 in May 2026.
Monthly nonstop PDX–STL traffic, trailing 12 months through May 2026. Bars scale to the busiest month; months with no filed service show as zero.
June 2025
18 departures · 2,487 passengers
85.3%
Load
July 2025
18 departures · 2,542 passengers
87.2%
Load
August 2025
20 departures · 2,896 passengers
92.9%
Load
September 2025
16 departures · 2,344 passengers
92.1%
Load
October 2025
0 departures · 0 passengers
—
Load
November 2025
1 departures · 78 passengers
44.6%
Load
December 2025
0 departures · 0 passengers
—
Load
January 2026
0 departures · 0 passengers
—
Load
February 2026
0 departures · 0 passengers
—
Load
March 2026
0 departures · 0 passengers
—
Load
April 2026
0 departures · 0 passengers
—
Load
May 2026
38 departures · 5,227 passengers
77.7%
Load
By direction
Each direction is filed separately — they rarely match.
PDX → STL
75.8% full
19 departures · 2,552 passengers
STL → PDX
79.5% full
19 departures · 2,675 passengers
Nonstop PDX–STL traffic has been filed since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through May 2026; filings from 2025. Public domain (US Government work).
The airports
Frequently asked
How far is Portland (PDX) from St Louis (STL)?
PDX to STL is 1,704 miles (2,742 km / 1,481 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from PDX to STL?
A nonstop covers the 1,704-mile great-circle distance in roughly 4h 12m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies PDX–STL?
In May 2026, the Boeing 737-900ER flew the largest share of departures (68.4%), followed by the Boeing 737 MAX 9 (26.3%).
What mileage do I earn flying PDX–STL?
Distance-based programs credit off the 1,704-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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