Flights from Portland to Ontario

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 5 - Wed, Aug 13

PDX

Portland Intl.

LSE

La Crosse Municipal

$525 Roundtrip, found 15 hours ago

$525

Roundtrip

found 15 hours ago

Select American Airlines flight, departing Tue, Aug 5 from Portland Intl. to La Crosse Municipal, returning Wed, Aug 13, priced at $525 found 15 hours ago

Tue, Aug 5 - Sat, Aug 9

PDX

Portland Intl.

LSE

La Crosse Municipal

$535 Roundtrip, found 15 hours ago

$535

Roundtrip

found 15 hours ago

Select American Airlines flight, departing Tue, Aug 5 from Portland Intl. to La Crosse Municipal, returning Sat, Aug 9, priced at $535 found 15 hours ago

Tue, Aug 5 - Thu, Aug 14

PDX

Portland Intl.

LSE

La Crosse Municipal

$547 Roundtrip, found 15 hours ago

$547

Roundtrip

found 15 hours ago

Select American Airlines flight, departing Tue, Aug 5 from Portland Intl. to La Crosse Municipal, returning Thu, Aug 14, priced at $547 found 15 hours ago

Thu, Jul 31 - Wed, Aug 13

PDX

Portland Intl.

LSE

La Crosse Municipal

$563 Roundtrip, found 15 hours ago

$563

Roundtrip

found 15 hours ago

Select American Airlines flight, departing Thu, Jul 31 from Portland Intl. to La Crosse Municipal, returning Wed, Aug 13, priced at $563 found 15 hours ago

Fri, Aug 1 - Wed, Aug 13

PDX

Portland Intl.

LSE

La Crosse Municipal

$568 Roundtrip, found 15 hours ago

$568

Roundtrip

found 15 hours ago

Select American Airlines flight, departing Fri, Aug 1 from Portland Intl. to La Crosse Municipal, returning Wed, Aug 13, priced at $568 found 15 hours ago

Thu, Jul 31 - Sat, Aug 9

PDX

Portland Intl.

LSE

La Crosse Municipal

$573 Roundtrip, found 15 hours ago

$573

Roundtrip

found 15 hours ago

Select American Airlines flight, departing Thu, Jul 31 from Portland Intl. to La Crosse Municipal, returning Sat, Aug 9, priced at $573 found 15 hours ago

Fri, Aug 1 - Sat, Aug 9

PDX

Portland Intl.

LSE

La Crosse Municipal

$578 Roundtrip, found 15 hours ago

$578

Roundtrip

found 15 hours ago

Select American Airlines flight, departing Fri, Aug 1 from Portland Intl. to La Crosse Municipal, returning Sat, Aug 9, priced at $578 found 15 hours ago

Thu, Jul 31 - Thu, Aug 14

PDX

Portland Intl.

LSE

La Crosse Municipal

$584 Roundtrip, found 15 hours ago

$584

Roundtrip

found 15 hours ago

Select American Airlines flight, departing Thu, Jul 31 from Portland Intl. to La Crosse Municipal, returning Thu, Aug 14, priced at $584 found 15 hours ago

Fri, Aug 1 - Thu, Aug 14

PDX

Portland Intl.

LSE

La Crosse Municipal

$590 Roundtrip, found 15 hours ago

$590

Roundtrip

found 15 hours ago

Select American Airlines flight, departing Fri, Aug 1 from Portland Intl. to La Crosse Municipal, returning Thu, Aug 14, priced at $590 found 15 hours ago

Tue, Aug 5 - Fri, Aug 15

PDX

Portland Intl.

LSE

La Crosse Municipal

$593 Roundtrip, found 15 hours ago

$593

Roundtrip

found 15 hours ago

Select American Airlines flight, departing Tue, Aug 5 from Portland Intl. to La Crosse Municipal, returning Fri, Aug 15, priced at $593 found 15 hours ago

Wed, Jul 30 - Sat, Aug 9

PDX

Portland Intl.

LSE

La Crosse Municipal

$595 Roundtrip, found 15 hours ago

$595

Roundtrip

found 15 hours ago

Select American Airlines flight, departing Wed, Jul 30 from Portland Intl. to La Crosse Municipal, returning Sat, Aug 9, priced at $595 found 15 hours ago

Wed, Jul 30 - Thu, Aug 14

PDX

Portland Intl.

LSE

La Crosse Municipal

$606 Roundtrip, found 15 hours ago

$606

Roundtrip

found 15 hours ago

Select American Airlines flight, departing Wed, Jul 30 from Portland Intl. to La Crosse Municipal, returning Thu, Aug 14, priced at $606 found 15 hours ago

Sun, Aug 3 - Wed, Aug 13

PDX

Portland Intl.

LSE

La Crosse Municipal

$613 Roundtrip, found 15 hours ago

$613

Roundtrip

found 15 hours ago

Select American Airlines flight, departing Sun, Aug 3 from Portland Intl. to La Crosse Municipal, returning Wed, Aug 13, priced at $613 found 15 hours ago

Sun, Aug 3 - Sat, Aug 9

PDX

Portland Intl.

LSE

La Crosse Municipal

$623 Roundtrip, found 15 hours ago

$623

Roundtrip

found 15 hours ago

Select American Airlines flight, departing Sun, Aug 3 from Portland Intl. to La Crosse Municipal, returning Sat, Aug 9, priced at $623 found 15 hours ago

Thu, Jul 31 - Fri, Aug 15

PDX

Portland Intl.

LSE

La Crosse Municipal

$630 Roundtrip, found 15 hours ago

$630

Roundtrip

found 15 hours ago

Select American Airlines flight, departing Thu, Jul 31 from Portland Intl. to La Crosse Municipal, returning Fri, Aug 15, priced at $630 found 15 hours ago

Sun, Aug 3 - Thu, Aug 14

PDX

Portland Intl.

LSE

La Crosse Municipal

$634 Roundtrip, found 15 hours ago

$634

Roundtrip

found 15 hours ago

Select American Airlines flight, departing Sun, Aug 3 from Portland Intl. to La Crosse Municipal, returning Thu, Aug 14, priced at $634 found 15 hours ago

Fri, Aug 1 - Fri, Aug 15

PDX

Portland Intl.

LSE

La Crosse Municipal

$636 Roundtrip, found 15 hours ago

$636

Roundtrip

found 15 hours ago

Select American Airlines flight, departing Fri, Aug 1 from Portland Intl. to La Crosse Municipal, returning Fri, Aug 15, priced at $636 found 15 hours ago

Sat, Aug 2 - Sat, Aug 9

PDX

Portland Intl.

LSE

La Crosse Municipal

$641 Roundtrip, found 15 hours ago

$641

Roundtrip

found 15 hours ago

Select American Airlines flight, departing Sat, Aug 2 from Portland Intl. to La Crosse Municipal, returning Sat, Aug 9, priced at $641 found 15 hours ago

Tue, Aug 5 - Tue, Aug 12

PDX

Portland Intl.

LSE

La Crosse Municipal

$646 Roundtrip, found 15 hours ago

$646

Roundtrip

found 15 hours ago

Select American Airlines flight, departing Tue, Aug 5 from Portland Intl. to La Crosse Municipal, returning Tue, Aug 12, priced at $646 found 15 hours ago

Wed, Jul 30 - Fri, Aug 15

PDX

Portland Intl.

LSE

La Crosse Municipal

$652 Roundtrip, found 15 hours ago

$652

Roundtrip

found 15 hours ago

Select American Airlines flight, departing Wed, Jul 30 from Portland Intl. to La Crosse Municipal, returning Fri, Aug 15, priced at $652 found 15 hours ago