$170 Cheap United flights St. Louis (STL) to Portland (PDX)

$170 Cheap United flights St. Louis (STL) to Portland (PDX)

Prices were available within the past 7 days and start at $170 for one-way flights and $339 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sun, Jun 21 - Sat, Jul 4

STL

St. Louis

PDX

Portland

$339 Roundtrip, found 5 hours ago

$339

Roundtrip

found 5 hours ago

Select United flight, departing Sun, Jun 21 from St. Louis to Portland, returning Sat, Jul 4, priced at $339 found 5 hours ago

Sat, Jun 20 - Sun, Jun 28

STL

St. Louis

PDX

Portland

$358 Roundtrip, found 9 hours ago

$358

Roundtrip

found 9 hours ago

Select United flight, departing Sat, Jun 20 from St. Louis to Portland, returning Sun, Jun 28, priced at $358 found 9 hours ago

Sun, Jul 5 - Fri, Jul 17

STL

St. Louis

PDX

Portland

$404 Roundtrip, found 5 hours ago

$404

Roundtrip

found 5 hours ago

Select United flight, departing Sun, Jul 5 from St. Louis to Portland, returning Fri, Jul 17, priced at $404 found 5 hours ago

Fri, Jun 19 - Sun, Jun 28

STL

St. Louis

PDX

Portland

$420 Roundtrip, found 9 hours ago

$420

Roundtrip

found 9 hours ago

Select United flight, departing Fri, Jun 19 from St. Louis to Portland, returning Sun, Jun 28, priced at $420 found 9 hours ago