Southwest® flights from St. Louis to Portland, OR from $210

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Low fares from St. Louis to Portland, OR

$

St. Louis (STL)to

Portland, OR (PDX)
Depart: 01/10/2027

One-way

Basic

From
$210
Seen: 14 hrs ago

St. Louis (STL)to

Portland, OR (PDX)
Depart: 01/27/2027

One-way

Basic

From
$210
Seen: 17 hrs ago

St. Louis (STL)to

Portland, OR (PDX)
Depart: 01/18/2027

One-way

Basic

From
$210
Seen: 8 hrs ago

St. Louis (STL)to

Portland, OR (PDX)
Depart: 02/05/2027

One-way

Basic

From
$210
Seen: 18 hrs ago

St. Louis (STL)to

Portland, OR (PDX)
Depart: 12/08/2026

One-way

Basic

From
$210
Seen: 18 hrs ago

St. Louis (STL)to

Portland, OR (PDX)
Depart: 12/07/2026

One-way

Basic

From
$210
Seen: 3 hrs ago

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Explore flights from St. Louis to Portland, OR

Nov 2026
From$239*
Seen: 23 hrs ago
One Way/Basic
Dec 2026
From$210*
Seen: 18 hrs ago
One Way/Basic
Jan 2027
From$210*
Seen: 4 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $210
cmp-daily-histogram-bars-legend-max-price-aria-label $569
Displaying fares for November-2026
  • STL–PDX, 11/11/2026: From $259
    11

    Wed

    NOV

  • STL–PDX, 11/12/2026: From $355
    12

    Thu

  • STL–PDX, 11/13/2026: From $405
    13

    Fri

  • STL–PDX, 11/14/2026: From $259
    14

    Sat

  • STL–PDX, 11/15/2026: From $355
    15

    Sun

  • STL–PDX, 11/16/2026: From $355
    16

    Mon

  • STL–PDX, 11/17/2026: From $259
    17

    Tue

  • STL–PDX, 11/18/2026: From $259
    18

    Wed

  • STL–PDX: cmp-view-offers-disclaimer. Find Offers
    19

    Thu

  • STL–PDX: cmp-view-offers-disclaimer. Find Offers
    20

    Fri

  • STL–PDX, 11/21/2026: From $259
    21

    Sat

  • STL–PDX, 11/22/2026: From $342
    22

    Sun

  • STL–PDX: cmp-view-offers-disclaimer. Find Offers
    23

    Mon

  • STL–PDX, 11/24/2026: From $280
    24

    Tue

  • STL–PDX, 11/25/2026: From $244
    25

    Wed

  • STL–PDX, 11/26/2026: From $239
    26

    Thu

  • STL–PDX: cmp-view-offers-disclaimer. Find Offers
    27

    Fri

  • STL–PDX, 11/28/2026: From $499
    28

    Sat

  • STL–PDX, 11/29/2026: From $569
    29

    Sun

  • STL–PDX: cmp-view-offers-disclaimer. Find Offers
    30

    Mon

  • STL–PDX, 12/01/2026: From $259
    01

    Tue

    DEC

  • STL–PDX, 12/02/2026: From $229
    02

    Wed

  • STL–PDX: cmp-view-offers-disclaimer. Find Offers
    03

    Thu

  • STL–PDX, 12/04/2026: From $210
    04

    Fri

  • STL–PDX: cmp-view-offers-disclaimer. Find Offers
    05

    Sat

  • STL–PDX: cmp-view-offers-disclaimer. Find Offers
    06

    Sun

  • STL–PDX, 12/07/2026: From $210
    07

    Mon

  • STL–PDX, 12/08/2026: From $210
    08

    Tue

  • STL–PDX: cmp-view-offers-disclaimer. Find Offers
    09

    Wed

  • STL–PDX: cmp-view-offers-disclaimer. Find Offers
    10

    Thu

    • Range$210-$569

    *Fares displayed have been collected within the last 24 hours and may no longer be available at time of booking. Additional fees and charges for optional products and services may apply. Modifying this information may result in a different fare. To find the most updated fare, please visit Southwest.com. Fares listed are Basic, which are subject to additional terms and conditions.

    Flight Details

    Departing from:
    Lambert-St Louis Int'l Airport
    Arriving at:
    Portland International Airport
    Distance:
    1708 miles

    Questions we hear the most

    There are 154 weekly flights from St. Louis to Portland, OR on Southwest Airlines.
    To find the lowest fares by day and time to fly St. Louis to Portland, OR with Southwest, check out our Low Fare Calendar.
    You can rent a car at Portland International Airport book yours with your flight.
    Yes! Flights from St. Louis to Portland, OR—or from here or there to anywhere—can be changed with no change fees. Fare difference may apply.
    Check the status of your upcoming Southwest flight.
    Check out the Southwest Airlines® Help Center for answers about everything Southwest.

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