Flights from Portland to Thornton

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.

Tue, Aug 12 - Tue, Aug 19

PDX

Portland Intl.

OAK

Oakland Intl.

$155 Roundtrip, found 6 days ago

$155

Roundtrip

found 6 days ago

Select Alaska Airlines flight, departing Tue, Aug 12 from Portland Intl. to Oakland Intl., returning Tue, Aug 19, priced at $155 found 6 days ago

Tue, Aug 12 - Sat, Aug 16

PDX

Portland Intl.

OAK

Oakland Intl.

$156 Roundtrip, found 6 days ago

$156

Roundtrip

found 6 days ago

Select Alaska Airlines flight, departing Tue, Aug 12 from Portland Intl. to Oakland Intl., returning Sat, Aug 16, priced at $156 found 6 days ago

Tue, May 13 - Wed, May 21

PDX

Portland Intl.

SMF

Sacramento Intl.

$165 Roundtrip, found 1 day ago

$165

Roundtrip

found 1 day ago

Select Spirit Airlines flight, departing Tue, May 13 from Portland Intl. to Sacramento Intl., returning Wed, May 21, priced at $165 found 1 day ago

Tue, May 13 - Tue, May 20

PDX

Portland Intl.

SMF

Sacramento Intl.

$168 Roundtrip, found 1 day ago

$168

Roundtrip

found 1 day ago

Select Spirit Airlines flight, departing Tue, May 13 from Portland Intl. to Sacramento Intl., returning Tue, May 20, priced at $168 found 1 day ago

Tue, May 13 - Mon, May 19

PDX

Portland Intl.

SMF

Sacramento Intl.

$174 Roundtrip, found 1 day ago

$174

Roundtrip

found 1 day ago

Select Spirit Airlines flight, departing Tue, May 13 from Portland Intl. to Sacramento Intl., returning Mon, May 19, priced at $174 found 1 day ago

Tue, Jun 17 - Tue, Jun 24

PDX

Portland Intl.

OAK

Oakland Intl.

$175 Roundtrip, found 1 day ago

$175

Roundtrip

found 1 day ago

Select Alaska Airlines flight, departing Tue, Jun 17 from Portland Intl. to Oakland Intl., returning Tue, Jun 24, priced at $175 found 1 day ago

Tue, Jun 17 - Mon, Jun 23

PDX

Portland Intl.

OAK

Oakland Intl.

$176 Roundtrip, found 1 day ago

$176

Roundtrip

found 1 day ago

Select Hawaiian Airlines flight, departing Tue, Jun 17 from Portland Intl. to Oakland Intl., returning Mon, Jun 23, priced at $176 found 1 day ago

Fri, Jun 20 - Mon, Jun 23

PDX

Portland Intl.

OAK

Oakland Intl.

$177 Roundtrip, found 1 day ago

$177

Roundtrip

found 1 day ago

Select Hawaiian Airlines flight, departing Fri, Jun 20 from Portland Intl. to Oakland Intl., returning Mon, Jun 23, priced at $177 found 1 day ago

Tue, Jun 17 - Sat, Jun 21

PDX

Portland Intl.

OAK

Oakland Intl.

$183 Roundtrip, found 1 day ago

$183

Roundtrip

found 1 day ago

Select Spirit Airlines flight, departing Tue, Jun 17 from Portland Intl. to Oakland Intl., returning Sat, Jun 21, priced at $183 found 1 day ago

Tue, Aug 12 - Sun, Aug 17

PDX

Portland Intl.

OAK

Oakland Intl.

$186 Roundtrip, found 6 days ago

$186

Roundtrip

found 6 days ago

Select Delta flight, departing Tue, Aug 12 from Portland Intl. to Oakland Intl., returning Sun, Aug 17, priced at $186 found 6 days ago

Wed, May 14 - Wed, May 21

PDX

Portland Intl.

SMF

Sacramento Intl.

$190 Roundtrip, found 1 day ago

$190

Roundtrip

found 1 day ago

Select Spirit Airlines flight, departing Wed, May 14 from Portland Intl. to Sacramento Intl., returning Wed, May 21, priced at $190 found 1 day ago

Mon, Jun 23 - Tue, Jun 24

PDX

Portland Intl.

OAK

Oakland Intl.

$190 Roundtrip, found 1 day ago

$190

Roundtrip

found 1 day ago

Select Spirit Airlines flight, departing Mon, Jun 23 from Portland Intl. to Oakland Intl., returning Tue, Jun 24, priced at $190 found 1 day ago

Wed, May 14 - Tue, May 20

PDX

Portland Intl.

SMF

Sacramento Intl.

$193 Roundtrip, found 1 day ago

$193

Roundtrip

found 1 day ago

Select Spirit Airlines flight, departing Wed, May 14 from Portland Intl. to Sacramento Intl., returning Tue, May 20, priced at $193 found 1 day ago

Tue, May 13 - Sat, May 24

PDX

Portland Intl.

SMF

Sacramento Intl.

$195 Roundtrip, found 1 day ago

$195

Roundtrip

found 1 day ago

Select Spirit Airlines flight, departing Tue, May 13 from Portland Intl. to Sacramento Intl., returning Sat, May 24, priced at $195 found 1 day ago

Thu, Jun 19 - Tue, Jun 24

PDX

Portland Intl.

OAK

Oakland Intl.

$196 Roundtrip, found 1 day ago

$196

Roundtrip

found 1 day ago

Select Alaska Airlines flight, departing Thu, Jun 19 from Portland Intl. to Oakland Intl., returning Tue, Jun 24, priced at $196 found 1 day ago

Thu, Jun 19 - Mon, Jun 23

PDX

Portland Intl.

OAK

Oakland Intl.

$197 Roundtrip, found 1 day ago

$197

Roundtrip

found 1 day ago

Select Alaska Airlines flight, departing Thu, Jun 19 from Portland Intl. to Oakland Intl., returning Mon, Jun 23, priced at $197 found 1 day ago

Wed, May 14 - Mon, May 19

PDX

Portland Intl.

SMF

Sacramento Intl.

$199 Roundtrip, found 1 day ago

$199

Roundtrip

found 1 day ago

Select Spirit Airlines flight, departing Wed, May 14 from Portland Intl. to Sacramento Intl., returning Mon, May 19, priced at $199 found 1 day ago

Fri, May 16 - Tue, May 20

PDX

Portland Intl.

SMF

Sacramento Intl.

$203 Roundtrip, found 1 day ago

$203

Roundtrip

found 1 day ago

Select Spirit Airlines flight, departing Fri, May 16 from Portland Intl. to Sacramento Intl., returning Tue, May 20, priced at $203 found 1 day ago

Tue, Aug 12 - Sun, Aug 17

PDX

Portland Intl.

OAK

Oakland Intl.

$257 Roundtrip, found 6 days ago

$257

Roundtrip

found 6 days ago

Select Delta flight, departing Tue, Aug 12 from Portland Intl. to Oakland Intl., returning Sun, Aug 17, priced at $257 found 6 days ago

Sun, May 18 - Sun, May 25

PDX

Portland Intl.

SMF

Sacramento Intl.

$260 Roundtrip, found 1 day ago

$260

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Sun, May 18 from Portland Intl. to Sacramento Intl., returning Sun, May 25, priced at $260 found 1 day ago