Flights from Denver to St. Helens

Cheapest flights from Denver

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.

Tue, Jul 15 - Wed, Jul 23

DEN

Denver Intl.

PDX

Portland Intl.

$158 Roundtrip, found 2 days ago

$158

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Tue, Jul 15 from Denver Intl. to Portland Intl., returning Wed, Jul 23, priced at $158 found 2 days ago

Tue, Sep 9 - Sat, Sep 13

COS

Colorado Springs

PDX

Portland Intl.

$163 Roundtrip, found 1 day ago

$163

Roundtrip

found 1 day ago

Select Delta flight, departing Tue, Sep 9 from Colorado Springs to Portland Intl., returning Sat, Sep 13, priced at $163 found 1 day ago

Sat, Sep 13 - Sat, Sep 13

COS

Colorado Springs

PDX

Portland Intl.

$165 Roundtrip, found 1 day ago

$165

Roundtrip

found 1 day ago

Select Delta flight, departing Sat, Sep 13 from Colorado Springs to Portland Intl., returning Sat, Sep 13, priced at $165 found 1 day ago

Wed, Jul 16 - Wed, Jul 23

DEN

Denver Intl.

PDX

Portland Intl.

$178 Roundtrip, found 2 days ago

$178

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Wed, Jul 16 from Denver Intl. to Portland Intl., returning Wed, Jul 23, priced at $178 found 2 days ago

Sun, Jul 13 - Wed, Jul 23

DEN

Denver Intl.

PDX

Portland Intl.

$183 Roundtrip, found 2 days ago

$183

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Sun, Jul 13 from Denver Intl. to Portland Intl., returning Wed, Jul 23, priced at $183 found 2 days ago

Wed, Jul 16 - Wed, Jul 23

DEN

Denver Intl.

PDX

Portland Intl.

$188 Roundtrip, found 2 days ago

$188

Roundtrip

found 2 days ago

Select Alaska Airlines flight, departing Wed, Jul 16 from Denver Intl. to Portland Intl., returning Wed, Jul 23, priced at $188 found 2 days ago

Wed, Jul 16 - Wed, Jul 23

DEN

Denver Intl.

PDX

Portland Intl.

$189 Roundtrip, found 2 days ago

$189

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Wed, Jul 16 from Denver Intl. to Portland Intl., returning Wed, Jul 23, priced at $189 found 2 days ago

Wed, Jul 16 - Wed, Jul 23

DEN

Denver Intl.

PDX

Portland Intl.

$197 Roundtrip, found 2 days ago

$197

Roundtrip

found 2 days ago

Select Delta flight, departing Wed, Jul 16 from Denver Intl. to Portland Intl., returning Wed, Jul 23, priced at $197 found 2 days ago

Wed, Jun 25 - Tue, Jul 1

DEN

Denver Intl.

PDX

Portland Intl.

$198 Roundtrip, found 2 days ago

$198

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Wed, Jun 25 from Denver Intl. to Portland Intl., returning Tue, Jul 1, priced at $198 found 2 days ago

Wed, Jul 16 - Thu, Jul 24

DEN

Denver Intl.

PDX

Portland Intl.

$203 Roundtrip, found 2 days ago

$203

Roundtrip

found 2 days ago

Select Delta flight, departing Wed, Jul 16 from Denver Intl. to Portland Intl., returning Thu, Jul 24, priced at $203 found 2 days ago

Wed, Jun 25 - Fri, Jul 4

DEN

Denver Intl.

PDX

Portland Intl.

$203 Roundtrip, found 2 days ago

$203

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Wed, Jun 25 from Denver Intl. to Portland Intl., returning Fri, Jul 4, priced at $203 found 2 days ago

Tue, Sep 9 - Tue, Sep 16

COS

Colorado Springs

PDX

Portland Intl.

$207 Roundtrip, found 1 day ago

$207

Roundtrip

found 1 day ago

Select Delta flight, departing Tue, Sep 9 from Colorado Springs to Portland Intl., returning Tue, Sep 16, priced at $207 found 1 day ago

Tue, Jul 15 - Mon, Jul 21

DEN

Denver Intl.

PDX

Portland Intl.

$207 Roundtrip, found 2 days ago

$207

Roundtrip

found 2 days ago

Select Hawaiian Airlines flight, departing Tue, Jul 15 from Denver Intl. to Portland Intl., returning Mon, Jul 21, priced at $207 found 2 days ago

Sun, Jul 13 - Thu, Jul 24

DEN

Denver Intl.

PDX

Portland Intl.

$208 Roundtrip, found 2 days ago

$208

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Sun, Jul 13 from Denver Intl. to Portland Intl., returning Thu, Jul 24, priced at $208 found 2 days ago

Tue, Jul 15 - Sun, Jul 20

DEN

Denver Intl.

PDX

Portland Intl.

$212 Roundtrip, found 2 days ago

$212

Roundtrip

found 2 days ago

Select Hawaiian Airlines flight, departing Tue, Jul 15 from Denver Intl. to Portland Intl., returning Sun, Jul 20, priced at $212 found 2 days ago

Thu, Jun 26 - Tue, Jul 1

DEN

Denver Intl.

PDX

Portland Intl.

$213 Roundtrip, found 2 days ago

$213

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Thu, Jun 26 from Denver Intl. to Portland Intl., returning Tue, Jul 1, priced at $213 found 2 days ago

Sat, Jun 28 - Sat, Jul 5

DEN

Denver Intl.

PDX

Portland Intl.

$217 Roundtrip, found 2 days ago

$217

Roundtrip

found 2 days ago

Select Delta flight, departing Sat, Jun 28 from Denver Intl. to Portland Intl., returning Sat, Jul 5, priced at $217 found 2 days ago

Wed, Jul 16 - Wed, Jul 23

DEN

Denver Intl.

PDX

Portland Intl.

$217 Roundtrip, found 2 days ago

$217

Roundtrip

found 2 days ago

Select Alaska Airlines flight, departing Wed, Jul 16 from Denver Intl. to Portland Intl., returning Wed, Jul 23, priced at $217 found 2 days ago

Thu, Jul 31 - Mon, Aug 4

COS

Colorado Springs

PDX

Portland Intl.

$268 Roundtrip, found 3 days ago

$268

Roundtrip

found 3 days ago

Select United flight, departing Thu, Jul 31 from Colorado Springs to Portland Intl., returning Mon, Aug 4, priced at $268 found 3 days ago

Thu, Jul 31 - Mon, Aug 4

COS

Colorado Springs

PDX

Portland Intl.

$417 Roundtrip, found 3 days ago

$417

Roundtrip

found 3 days ago

Select American Airlines flight, departing Thu, Jul 31 from Colorado Springs to Portland Intl., returning Mon, Aug 4, priced at $417 found 3 days ago