Flights from Portland to St. Louis

Cheapest flights from Portland

These prices were available within the past 7 days. Prices quoted are per person, round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Apr 4 - Sun, Apr 12

PDX

Portland Intl.

STL

Lambert-St. Louis Intl.

$417 Roundtrip, found 1 day ago

$417

Roundtrip

found 1 day ago

Select United flight, departing Sat, Apr 4 from Portland Intl. to Lambert-St. Louis Intl., returning Sun, Apr 12, priced at $417 found 1 day ago

Sat, Apr 4 - Sun, Apr 12

PDX

Portland Intl.

STL

Lambert-St. Louis Intl.

$453 Roundtrip, found 1 day ago

$453

Roundtrip

found 1 day ago

Select American Airlines flight, departing Sat, Apr 4 from Portland Intl. to Lambert-St. Louis Intl., returning Sun, Apr 12, priced at $453 found 1 day ago

Sat, Apr 4 - Sun, Apr 12

PDX

Portland Intl.

STL

Lambert-St. Louis Intl.

$462 Roundtrip, found 1 day ago

$462

Roundtrip

found 1 day ago

Select United flight, departing Sat, Apr 4 from Portland Intl. to Lambert-St. Louis Intl., returning Sun, Apr 12, priced at $462 found 1 day ago

Sat, Apr 4 - Sun, Apr 12

PDX

Portland Intl.

STL

Lambert-St. Louis Intl.

$474 Roundtrip, found 1 day ago

$474

Roundtrip

found 1 day ago

Select United flight, departing Sat, Apr 4 from Portland Intl. to Lambert-St. Louis Intl., returning Sun, Apr 12, priced at $474 found 1 day ago

Sat, Apr 4 - Sun, Apr 12

PDX

Portland Intl.

STL

Lambert-St. Louis Intl.

$479 Roundtrip, found 1 day ago

$479

Roundtrip

found 1 day ago

Select American Airlines flight, departing Sat, Apr 4 from Portland Intl. to Lambert-St. Louis Intl., returning Sun, Apr 12, priced at $479 found 1 day ago

Sat, Apr 4 - Sun, Apr 12

PDX

Portland Intl.

STL

Lambert-St. Louis Intl.

$483 Roundtrip, found 1 day ago

$483

Roundtrip

found 1 day ago

Select American Airlines flight, departing Sat, Apr 4 from Portland Intl. to Lambert-St. Louis Intl., returning Sun, Apr 12, priced at $483 found 1 day ago

Sat, Apr 4 - Sun, Apr 12

PDX

Portland Intl.

STL

Lambert-St. Louis Intl.

$493 Roundtrip, found 1 day ago

$493

Roundtrip

found 1 day ago

Select Alaska Airlines flight, departing Sat, Apr 4 from Portland Intl. to Lambert-St. Louis Intl., returning Sun, Apr 12, priced at $493 found 1 day ago

Sat, Apr 4 - Sun, Apr 12

PDX

Portland Intl.

STL

Lambert-St. Louis Intl.

$498 Roundtrip, found 1 day ago

$498

Roundtrip

found 1 day ago

Select American Airlines flight, departing Sat, Apr 4 from Portland Intl. to Lambert-St. Louis Intl., returning Sun, Apr 12, priced at $498 found 1 day ago

Sat, Apr 4 - Sun, Apr 12

PDX

Portland Intl.

STL

Lambert-St. Louis Intl.

$502 Roundtrip, found 1 day ago

$502

Roundtrip

found 1 day ago

Select United flight, departing Sat, Apr 4 from Portland Intl. to Lambert-St. Louis Intl., returning Sun, Apr 12, priced at $502 found 1 day ago

Sat, Apr 4 - Sun, Apr 12

PDX

Portland Intl.

STL

Lambert-St. Louis Intl.

$509 Roundtrip, found 1 day ago

$509

Roundtrip

found 1 day ago

Select United flight, departing Sat, Apr 4 from Portland Intl. to Lambert-St. Louis Intl., returning Sun, Apr 12, priced at $509 found 1 day ago

Sat, Apr 4 - Sun, Apr 12

PDX

Portland Intl.

STL

Lambert-St. Louis Intl.

$516 Roundtrip, found 1 day ago

$516

Roundtrip

found 1 day ago

Select Alaska Airlines flight, departing Sat, Apr 4 from Portland Intl. to Lambert-St. Louis Intl., returning Sun, Apr 12, priced at $516 found 1 day ago

Sat, Apr 4 - Sun, Apr 12

PDX

Portland Intl.

STL

Lambert-St. Louis Intl.

$519 Roundtrip, found 1 day ago

$519

Roundtrip

found 1 day ago

Select United flight, departing Sat, Apr 4 from Portland Intl. to Lambert-St. Louis Intl., returning Sun, Apr 12, priced at $519 found 1 day ago

Sat, Apr 4 - Sun, Apr 12

PDX

Portland Intl.

STL

Lambert-St. Louis Intl.

$522 Roundtrip, found 1 day ago

$522

Roundtrip

found 1 day ago

Select American Airlines flight, departing Sat, Apr 4 from Portland Intl. to Lambert-St. Louis Intl., returning Sun, Apr 12, priced at $522 found 1 day ago

Sat, Apr 4 - Sun, Apr 12

PDX

Portland Intl.

STL

Lambert-St. Louis Intl.

$523 Roundtrip, found 1 day ago

$523

Roundtrip

found 1 day ago

Select Delta flight, departing Sat, Apr 4 from Portland Intl. to Lambert-St. Louis Intl., returning Sun, Apr 12, priced at $523 found 1 day ago

Sat, Apr 4 - Sun, Apr 12

PDX

Portland Intl.

STL

Lambert-St. Louis Intl.

$528 Roundtrip, found 1 day ago

$528

Roundtrip

found 1 day ago

Select American Airlines flight, departing Sat, Apr 4 from Portland Intl. to Lambert-St. Louis Intl., returning Sun, Apr 12, priced at $528 found 1 day ago

Sat, Apr 4 - Sun, Apr 12

PDX

Portland Intl.

STL

Lambert-St. Louis Intl.

$539 Roundtrip, found 1 day ago

$539

Roundtrip

found 1 day ago

Select American Airlines flight, departing Sat, Apr 4 from Portland Intl. to Lambert-St. Louis Intl., returning Sun, Apr 12, priced at $539 found 1 day ago

Sat, Apr 4 - Sun, Apr 12

PDX

Portland Intl.

STL

Lambert-St. Louis Intl.

$544 Roundtrip, found 1 day ago

$544

Roundtrip

found 1 day ago

Select United flight, departing Sat, Apr 4 from Portland Intl. to Lambert-St. Louis Intl., returning Sun, Apr 12, priced at $544 found 1 day ago

Sat, Apr 4 - Sun, Apr 12

PDX

Portland Intl.

STL

Lambert-St. Louis Intl.

$548 Roundtrip, found 1 day ago

$548

Roundtrip

found 1 day ago

Select American Airlines flight, departing Sat, Apr 4 from Portland Intl. to Lambert-St. Louis Intl., returning Sun, Apr 12, priced at $548 found 1 day ago

Sat, Apr 4 - Sun, Apr 12

PDX

Portland Intl.

STL

Lambert-St. Louis Intl.

$552 Roundtrip, found 1 day ago

$552

Roundtrip

found 1 day ago

Select Delta flight, departing Sat, Apr 4 from Portland Intl. to Lambert-St. Louis Intl., returning Sun, Apr 12, priced at $552 found 1 day ago

Sat, Apr 4 - Sun, Apr 12

PDX

Portland Intl.

STL

Lambert-St. Louis Intl.

$558 Roundtrip, found 1 day ago

$558

Roundtrip

found 1 day ago

Select United flight, departing Sat, Apr 4 from Portland Intl. to Lambert-St. Louis Intl., returning Sun, Apr 12, priced at $558 found 1 day ago