Flights from Portland to Costa Mesa

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.

Mon, Sep 15 - Mon, Sep 29

PDX

Portland Intl.

SNA

John Wayne

$134 Roundtrip, found 2 days ago

$134

Roundtrip

found 2 days ago

Select Spirit Airlines flight, departing Mon, Sep 15 from Portland Intl. to John Wayne, returning Mon, Sep 29, priced at $134 found 2 days ago

Fri, Aug 8 - Thu, Aug 14

PDX

Portland Intl.

SNA

John Wayne

$136 Roundtrip, found 3 days ago

$136

Roundtrip

found 3 days ago

Select Spirit Airlines flight, departing Fri, Aug 8 from Portland Intl. to John Wayne, returning Thu, Aug 14, priced at $136 found 3 days ago

Fri, Aug 22 - Sun, Aug 24

PDX

Portland Intl.

ONT

Los Angeles - Ontario Intl.

$140 Roundtrip, found 15 hours ago

$140

Roundtrip

found 15 hours ago

Select Frontier Airlines flight, departing Fri, Aug 22 from Portland Intl. to Los Angeles - Ontario Intl., returning Sun, Aug 24, priced at $140 found 15 hours ago

Mon, Aug 25 - Tue, Sep 2

PDX

Portland Intl.

ONT

Los Angeles - Ontario Intl.

$143 Roundtrip, found 1 day ago

$143

Roundtrip

found 1 day ago

Select Delta flight, departing Mon, Aug 25 from Portland Intl. to Los Angeles - Ontario Intl., returning Tue, Sep 2, priced at $143 found 1 day ago

Fri, Aug 15 - Thu, Sep 4

PDX

Portland Intl.

SNA

John Wayne

$149 Roundtrip, found 2 days ago

$149

Roundtrip

found 2 days ago

Select Spirit Airlines flight, departing Fri, Aug 15 from Portland Intl. to John Wayne, returning Thu, Sep 4, priced at $149 found 2 days ago

Fri, Jul 18 - Sun, Jul 20

PDX

Portland Intl.

ONT

Los Angeles - Ontario Intl.

$150 Roundtrip, found 2 days ago

$150

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Fri, Jul 18 from Portland Intl. to Los Angeles - Ontario Intl., returning Sun, Jul 20, priced at $150 found 2 days ago

Fri, Sep 12 - Sat, Sep 27

PDX

Portland Intl.

SNA

John Wayne

$151 Roundtrip, found 2 days ago

$151

Roundtrip

found 2 days ago

Select Spirit Airlines flight, departing Fri, Sep 12 from Portland Intl. to John Wayne, returning Sat, Sep 27, priced at $151 found 2 days ago

Sat, Aug 30 - Mon, Sep 15

PDX

Portland Intl.

SNA

John Wayne

$153 Roundtrip, found 2 days ago

$153

Roundtrip

found 2 days ago

Select Spirit Airlines flight, departing Sat, Aug 30 from Portland Intl. to John Wayne, returning Mon, Sep 15, priced at $153 found 2 days ago

Sat, Aug 23 - Sat, Aug 23

PDX

Portland Intl.

ONT

Los Angeles - Ontario Intl.

$153 Roundtrip, found 1 day ago

$153

Roundtrip

found 1 day ago

Select American Airlines flight, departing Sat, Aug 23 from Portland Intl. to Los Angeles - Ontario Intl., returning Sat, Aug 23, priced at $153 found 1 day ago

Sat, Aug 9 - Mon, Aug 25

PDX

Portland Intl.

SNA

John Wayne

$157 Roundtrip, found 2 days ago

$157

Roundtrip

found 2 days ago

Select Spirit Airlines flight, departing Sat, Aug 9 from Portland Intl. to John Wayne, returning Mon, Aug 25, priced at $157 found 2 days ago

Fri, Aug 22 - Sat, Aug 23

PDX

Portland Intl.

ONT

Los Angeles - Ontario Intl.

$159 Roundtrip, found 1 day ago

$159

Roundtrip

found 1 day ago

Select United flight, departing Fri, Aug 22 from Portland Intl. to Los Angeles - Ontario Intl., returning Sat, Aug 23, priced at $159 found 1 day ago

Sun, Aug 24 - Sun, Aug 31

PDX

Portland Intl.

SNA

John Wayne

$159 Roundtrip, found 6 days ago

$159

Roundtrip

found 6 days ago

Select Spirit Airlines flight, departing Sun, Aug 24 from Portland Intl. to John Wayne, returning Sun, Aug 31, priced at $159 found 6 days ago

Sat, Aug 30 - Fri, Sep 19

PDX

Portland Intl.

SNA

John Wayne

$161 Roundtrip, found 2 days ago

$161

Roundtrip

found 2 days ago

Select Spirit Airlines flight, departing Sat, Aug 30 from Portland Intl. to John Wayne, returning Fri, Sep 19, priced at $161 found 2 days ago

Fri, Sep 12 - Thu, Oct 2

PDX

Portland Intl.

SNA

John Wayne

$162 Roundtrip, found 2 days ago

$162

Roundtrip

found 2 days ago

Select Spirit Airlines flight, departing Fri, Sep 12 from Portland Intl. to John Wayne, returning Thu, Oct 2, priced at $162 found 2 days ago

Fri, Aug 22 - Sun, Aug 31

PDX

Portland Intl.

SNA

John Wayne

$164 Roundtrip, found 6 days ago

$164

Roundtrip

found 6 days ago

Select Spirit Airlines flight, departing Fri, Aug 22 from Portland Intl. to John Wayne, returning Sun, Aug 31, priced at $164 found 6 days ago

Fri, Aug 15 - Fri, Sep 5

PDX

Portland Intl.

SNA

John Wayne

$167 Roundtrip, found 2 days ago

$167

Roundtrip

found 2 days ago

Select Spirit Airlines flight, departing Fri, Aug 15 from Portland Intl. to John Wayne, returning Fri, Sep 5, priced at $167 found 2 days ago

Sat, Aug 9 - Thu, Aug 28

PDX

Portland Intl.

SNA

John Wayne

$168 Roundtrip, found 2 days ago

$168

Roundtrip

found 2 days ago

Select Spirit Airlines flight, departing Sat, Aug 9 from Portland Intl. to John Wayne, returning Thu, Aug 28, priced at $168 found 2 days ago

Mon, Aug 25 - Mon, Sep 1

PDX

Portland Intl.

ONT

Los Angeles - Ontario Intl.

$170 Roundtrip, found 1 day ago

$170

Roundtrip

found 1 day ago

Select Delta flight, departing Mon, Aug 25 from Portland Intl. to Los Angeles - Ontario Intl., returning Mon, Sep 1, priced at $170 found 1 day ago

Sat, Sep 20 - Wed, Oct 8

PDX

Portland Intl.

SNA

John Wayne

$177 Roundtrip, found 2 days ago

$177

Roundtrip

found 2 days ago

Select Hawaiian Airlines flight, departing Sat, Sep 20 from Portland Intl. to John Wayne, returning Wed, Oct 8, priced at $177 found 2 days ago

Fri, Aug 22 - Sat, Aug 23

PDX

Portland Intl.

ONT

Los Angeles - Ontario Intl.

$187 Roundtrip, found 1 day ago

$187

Roundtrip

found 1 day ago

Select Alaska Airlines flight, departing Fri, Aug 22 from Portland Intl. to Los Angeles - Ontario Intl., returning Sat, Aug 23, priced at $187 found 1 day ago