$139 Cheap American Airlines flights Portland (PDX) to St. Louis (STL)

$139 Cheap American Airlines flights Portland (PDX) to St. Louis (STL)

Prices were available within the past 7 days and start at $139 for one-way flights and $428 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, May 9 - Sun, May 17

PDX

Portland

STL

St. Louis

$428 Roundtrip, found 19 hours ago

$428

Roundtrip

found 19 hours ago

Select American Airlines flight, departing Sat, May 9 from Portland to St. Louis, returning Sun, May 17, priced at $428 found 19 hours ago

Sat, May 9 - Sun, May 17

PDX

Portland

STL

St. Louis

$448 Roundtrip, found 19 hours ago

$448

Roundtrip

found 19 hours ago

Select American Airlines flight, departing Sat, May 9 from Portland to St. Louis, returning Sun, May 17, priced at $448 found 19 hours ago

Sat, May 9 - Sun, May 17

PDX

Portland

STL

St. Louis

$452 Roundtrip, found 19 hours ago

$452

Roundtrip

found 19 hours ago

Select American Airlines flight, departing Sat, May 9 from Portland to St. Louis, returning Sun, May 17, priced at $452 found 19 hours ago

Sat, May 9 - Sun, May 17

PDX

Portland

STL

St. Louis

$464 Roundtrip, found 19 hours ago

$464

Roundtrip

found 19 hours ago

Select American Airlines flight, departing Sat, May 9 from Portland to St. Louis, returning Sun, May 17, priced at $464 found 19 hours ago

Sat, May 9 - Sun, May 17

PDX

Portland

STL

St. Louis

$488 Roundtrip, found 19 hours ago

$488

Roundtrip

found 19 hours ago

Select American Airlines flight, departing Sat, May 9 from Portland to St. Louis, returning Sun, May 17, priced at $488 found 19 hours ago

Thu, May 7 - Sun, May 17

PDX

Portland

STL

St. Louis

$518 Roundtrip, found 19 hours ago

$518

Roundtrip

found 19 hours ago

Select American Airlines flight, departing Thu, May 7 from Portland to St. Louis, returning Sun, May 17, priced at $518 found 19 hours ago