Flights from St. Helens

Cheapest flights from St. Helens

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.

Wed, Nov 4 - Wed, Nov 4

PDX

Portland Intl.

SFO

San Francisco Intl.

$112 Roundtrip, found 4 days ago

$112

Roundtrip

found 4 days ago

Select Alaska Airlines flight, departing Wed, Nov 4 from Portland Intl. to San Francisco Intl., returning Wed, Nov 4, priced at $112 found 4 days ago

Tue, Nov 3 - Wed, Nov 4

PDX

Portland Intl.

SFO

San Francisco Intl.

$117 Roundtrip, found 4 days ago

$117

Roundtrip

found 4 days ago

Select Alaska Airlines flight, departing Tue, Nov 3 from Portland Intl. to San Francisco Intl., returning Wed, Nov 4, priced at $117 found 4 days ago

Thu, Jan 7 - Thu, Jan 28

PDX

Portland Intl.

LAS

Harry Reid Intl.

$122 Roundtrip, found 1 day ago

$122

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Thu, Jan 7 from Portland Intl. to Harry Reid Intl., returning Thu, Jan 28, priced at $122 found 1 day ago

Tue, Dec 22 - Wed, Dec 30

PDX

Portland Intl.

LAS

Harry Reid Intl.

$129 Roundtrip, found 6 days ago

$129

Roundtrip

found 6 days ago

Select Alaska Airlines flight, departing Tue, Dec 22 from Portland Intl. to Harry Reid Intl., returning Wed, Dec 30, priced at $129 found 6 days ago

Mon, Jan 11 - Thu, Jan 28

PDX

Portland Intl.

LAS

Harry Reid Intl.

$136 Roundtrip, found 1 day ago

$136

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Mon, Jan 11 from Portland Intl. to Harry Reid Intl., returning Thu, Jan 28, priced at $136 found 1 day ago

Mon, Nov 2 - Wed, Nov 4

PDX

Portland Intl.

SFO

San Francisco Intl.

$137 Roundtrip, found 4 days ago

$137

Roundtrip

found 4 days ago

Select Delta flight, departing Mon, Nov 2 from Portland Intl. to San Francisco Intl., returning Wed, Nov 4, priced at $137 found 4 days ago

Mon, Nov 9 - Thu, Nov 26

PDX

Portland Intl.

SAN

San Diego Intl.

$143 Roundtrip, found 23 hours ago

$143

Roundtrip

found 23 hours ago

Select Alaska Airlines flight, departing Mon, Nov 9 from Portland Intl. to San Diego Intl., returning Thu, Nov 26, priced at $143 found 23 hours ago

Sat, Oct 31 - Mon, Nov 2

PDX

Portland Intl.

SFO

San Francisco Intl.

$144 Roundtrip, found 4 days ago

$144

Roundtrip

found 4 days ago

Select Alaska Airlines flight, departing Sat, Oct 31 from Portland Intl. to San Francisco Intl., returning Mon, Nov 2, priced at $144 found 4 days ago

Mon, Nov 9 - Thu, Nov 26

PDX

Portland Intl.

SAN

San Diego Intl.

$147 Roundtrip, found 23 hours ago

$147

Roundtrip

found 23 hours ago

Select Southwest Airlines flight, departing Mon, Nov 9 from Portland Intl. to San Diego Intl., returning Thu, Nov 26, priced at $147 found 23 hours ago

Mon, Nov 9 - Thu, Nov 26

PDX

Portland Intl.

SAN

San Diego Intl.

$153 Roundtrip, found 23 hours ago

$153

Roundtrip

found 23 hours ago

Select Delta flight, departing Mon, Nov 9 from Portland Intl. to San Diego Intl., returning Thu, Nov 26, priced at $153 found 23 hours ago

Thu, Nov 5 - Mon, Nov 16

PDX

Portland Intl.

LAX

Los Angeles Intl.

$163 Roundtrip, found 16 hours ago

$163

Roundtrip

found 16 hours ago

Select Frontier Airlines flight, departing Thu, Nov 5 from Portland Intl. to Los Angeles Intl., returning Mon, Nov 16, priced at $163 found 16 hours ago

Sat, Oct 24 - Tue, Oct 27

PDX

Portland Intl.

SFO

San Francisco Intl.

$185 Roundtrip, found 2 days ago

$185

Roundtrip

found 2 days ago

Select United flight, departing Sat, Oct 24 from Portland Intl. to San Francisco Intl., returning Tue, Oct 27, priced at $185 found 2 days ago

Sat, Oct 24 - Tue, Oct 27

PDX

Portland Intl.

SFO

San Francisco Intl.

$205 Roundtrip, found 2 days ago

$205

Roundtrip

found 2 days ago

Select American Airlines flight, departing Sat, Oct 24 from Portland Intl. to San Francisco Intl., returning Tue, Oct 27, priced at $205 found 2 days ago

Sat, Nov 21 - Thu, Nov 26

PDX

Portland Intl.

PHX

Sky Harbor Intl.

$237 Roundtrip, found 2 days ago

$237

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Sat, Nov 21 from Portland Intl. to Sky Harbor Intl., returning Thu, Nov 26, priced at $237 found 2 days ago

Sun, Nov 22 - Thu, Dec 3

PDX

Portland Intl.

DFW

Dallas-Fort Worth Intl.

$311 Roundtrip, found 4 days ago

$311

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Sun, Nov 22 from Portland Intl. to Dallas-Fort Worth Intl., returning Thu, Dec 3, priced at $311 found 4 days ago

Sat, Dec 5 - Wed, Dec 16

PDX

Portland Intl.

CLD

McClellan-Palomar

$357 Roundtrip, found 8 hours ago

$357

Roundtrip

found 8 hours ago

Select American Airlines flight, departing Sat, Dec 5 from Portland Intl. to McClellan-Palomar, returning Wed, Dec 16, priced at $357 found 8 hours ago

Sun, Nov 22 - Mon, Nov 23

PDX

Portland Intl.

DAL

Love Field

$385 Roundtrip, found 4 days ago

$385

Roundtrip

found 4 days ago

Select Southwest Airlines flight, departing Sun, Nov 22 from Portland Intl. to Love Field, returning Mon, Nov 23, priced at $385 found 4 days ago

Wed, Feb 10 - Fri, Feb 26

PDX

Portland Intl.

HNL

Daniel K. Inouye Intl.

$455 Roundtrip, found 6 days ago

$455

Roundtrip

found 6 days ago

Select Alaska Airlines flight, departing Wed, Feb 10 from Portland Intl. to Daniel K. Inouye Intl., returning Fri, Feb 26, priced at $455 found 6 days ago

Mon, Feb 8 - Thu, Feb 11

PDX

Portland Intl.

GDL

Don Miguel Hidalgo y Costilla Intl.

$521 Roundtrip, found 3 days ago

$521

Roundtrip

found 3 days ago

Select Delta flight, departing Mon, Feb 8 from Portland Intl. to Don Miguel Hidalgo y Costilla Intl., returning Thu, Feb 11, priced at $521 found 3 days ago

Mon, Oct 26 - Thu, Nov 5

PDX

Portland Intl.

GDL

Don Miguel Hidalgo y Costilla Intl.

$598 Roundtrip, found 8 hours ago

$598

Roundtrip

found 8 hours ago

Select Volaris flight, departing Mon, Oct 26 from Portland Intl. to Don Miguel Hidalgo y Costilla Intl., returning Thu, Nov 5, priced at $598 found 8 hours ago