Flights from Portland to Clayton

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, Sep 13 - Mon, Sep 15

PDX

Portland Intl.

SFO

San Francisco Intl.

$77 Roundtrip, found 10 hours ago

$77

Roundtrip

found 10 hours ago

Select United flight, departing Sat, Sep 13 from Portland Intl. to San Francisco Intl., returning Mon, Sep 15, priced at $77 found 10 hours ago

Tue, Aug 26 - Sat, Aug 30

PDX

Portland Intl.

OAK

Oakland Intl.

$97 Roundtrip, found 2 days ago

$97

Roundtrip

found 2 days ago

Select Hawaiian Airlines flight, departing Tue, Aug 26 from Portland Intl. to Oakland Intl., returning Sat, Aug 30, priced at $97 found 2 days ago

Wed, Aug 13 - Sat, Aug 16

PDX

Portland Intl.

SFO

San Francisco Intl.

$97 Roundtrip, found 1 day ago

$97

Roundtrip

found 1 day ago

Select Hawaiian Airlines flight, departing Wed, Aug 13 from Portland Intl. to San Francisco Intl., returning Sat, Aug 16, priced at $97 found 1 day ago

Sat, Sep 13 - Mon, Sep 15

PDX

Portland Intl.

SFO

San Francisco Intl.

$107 Roundtrip, found 10 hours ago

$107

Roundtrip

found 10 hours ago

Select Delta flight, departing Sat, Sep 13 from Portland Intl. to San Francisco Intl., returning Mon, Sep 15, priced at $107 found 10 hours ago

Sat, Sep 13 - Mon, Sep 15

PDX

Portland Intl.

SFO

San Francisco Intl.

$112 Roundtrip, found 10 hours ago

$112

Roundtrip

found 10 hours ago

Select Alaska Airlines flight, departing Sat, Sep 13 from Portland Intl. to San Francisco Intl., returning Mon, Sep 15, priced at $112 found 10 hours ago

Sat, Sep 13 - Mon, Sep 15

PDX

Portland Intl.

SFO

San Francisco Intl.

$117 Roundtrip, found 10 hours ago

$117

Roundtrip

found 10 hours ago

Select Alaska Airlines flight, departing Sat, Sep 13 from Portland Intl. to San Francisco Intl., returning Mon, Sep 15, priced at $117 found 10 hours ago

Sat, Sep 13 - Mon, Sep 15

PDX

Portland Intl.

SFO

San Francisco Intl.

$118 Roundtrip, found 10 hours ago

$118

Roundtrip

found 10 hours ago

Select American Airlines flight, departing Sat, Sep 13 from Portland Intl. to San Francisco Intl., returning Mon, Sep 15, priced at $118 found 10 hours ago

Wed, Aug 13 - Sun, Aug 17

PDX

Portland Intl.

SFO

San Francisco Intl.

$127 Roundtrip, found 1 day ago

$127

Roundtrip

found 1 day ago

Select Hawaiian Airlines flight, departing Wed, Aug 13 from Portland Intl. to San Francisco Intl., returning Sun, Aug 17, priced at $127 found 1 day ago

Sun, Aug 31 - Tue, Sep 2

PDX

Portland Intl.

OAK

Oakland Intl.

$132 Roundtrip, found 2 days ago

$132

Roundtrip

found 2 days ago

Select Hawaiian Airlines flight, departing Sun, Aug 31 from Portland Intl. to Oakland Intl., returning Tue, Sep 2, priced at $132 found 2 days ago

Mon, Aug 11 - Mon, Aug 18

PDX

Portland Intl.

SFO

San Francisco Intl.

$134 Roundtrip, found 1 day ago

$134

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Mon, Aug 11 from Portland Intl. to San Francisco Intl., returning Mon, Aug 18, priced at $134 found 1 day ago

Sat, Sep 13 - Mon, Sep 15

PDX

Portland Intl.

SFO

San Francisco Intl.

$137 Roundtrip, found 10 hours ago

$137

Roundtrip

found 10 hours ago

Select Alaska Airlines flight, departing Sat, Sep 13 from Portland Intl. to San Francisco Intl., returning Mon, Sep 15, priced at $137 found 10 hours ago

Sat, Sep 13 - Mon, Sep 15

PDX

Portland Intl.

SFO

San Francisco Intl.

$137 Roundtrip, found 10 hours ago

$137

Roundtrip

found 10 hours ago

Select Delta flight, departing Sat, Sep 13 from Portland Intl. to San Francisco Intl., returning Mon, Sep 15, priced at $137 found 10 hours ago

Wed, Aug 13 - Wed, Aug 13

PDX

Portland Intl.

SFO

San Francisco Intl.

$137 Roundtrip, found 1 day ago

$137

Roundtrip

found 1 day ago

Select Hawaiian Airlines flight, departing Wed, Aug 13 from Portland Intl. to San Francisco Intl., returning Wed, Aug 13, priced at $137 found 1 day ago

Fri, Aug 29 - Sat, Aug 30

PDX

Portland Intl.

OAK

Oakland Intl.

$142 Roundtrip, found 2 days ago

$142

Roundtrip

found 2 days ago

Select Hawaiian Airlines flight, departing Fri, Aug 29 from Portland Intl. to Oakland Intl., returning Sat, Aug 30, priced at $142 found 2 days ago

Sat, Sep 13 - Mon, Sep 15

PDX

Portland Intl.

SFO

San Francisco Intl.

$142 Roundtrip, found 10 hours ago

$142

Roundtrip

found 10 hours ago

Select Alaska Airlines flight, departing Sat, Sep 13 from Portland Intl. to San Francisco Intl., returning Mon, Sep 15, priced at $142 found 10 hours ago

Sat, Sep 13 - Mon, Sep 15

PDX

Portland Intl.

SFO

San Francisco Intl.

$143 Roundtrip, found 10 hours ago

$143

Roundtrip

found 10 hours ago

Select United flight, departing Sat, Sep 13 from Portland Intl. to San Francisco Intl., returning Mon, Sep 15, priced at $143 found 10 hours ago

Fri, Aug 15 - Mon, Aug 18

PDX

Portland Intl.

SFO

San Francisco Intl.

$147 Roundtrip, found 1 day ago

$147

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Fri, Aug 15 from Portland Intl. to San Francisco Intl., returning Mon, Aug 18, priced at $147 found 1 day ago

Sat, Sep 13 - Mon, Sep 15

PDX

Portland Intl.

SFO

San Francisco Intl.

$150 Roundtrip, found 10 hours ago

$150

Roundtrip

found 10 hours ago

Select Alaska Airlines flight, departing Sat, Sep 13 from Portland Intl. to San Francisco Intl., returning Mon, Sep 15, priced at $150 found 10 hours ago

Sat, Sep 13 - Mon, Sep 15

PDX

Portland Intl.

SFO

San Francisco Intl.

$159 Roundtrip, found 10 hours ago

$159

Roundtrip

found 10 hours ago

Select American Airlines flight, departing Sat, Sep 13 from Portland Intl. to San Francisco Intl., returning Mon, Sep 15, priced at $159 found 10 hours ago

Fri, Aug 29 - Mon, Sep 1

PDX

Portland Intl.

OAK

Oakland Intl.

$305 Roundtrip, found 2 days ago

$305

Roundtrip

found 2 days ago

Select Spirit Airlines flight, departing Fri, Aug 29 from Portland Intl. to Oakland Intl., returning Mon, Sep 1, priced at $305 found 2 days ago