Flights from Portland to Washington

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.

Wed, Aug 6 - Tue, Aug 12

PDX

Portland Intl.

DCA

Ronald Reagan Washington National

$318 Roundtrip, found 1 day ago

$318

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Wed, Aug 6 from Portland Intl. to Ronald Reagan Washington National, returning Tue, Aug 12, priced at $318 found 1 day ago

Thu, Aug 7 - Tue, Aug 12

PDX

Portland Intl.

DCA

Ronald Reagan Washington National

$326 Roundtrip, found 1 day ago

$326

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Thu, Aug 7 from Portland Intl. to Ronald Reagan Washington National, returning Tue, Aug 12, priced at $326 found 1 day ago

Fri, Aug 8 - Tue, Aug 12

PDX

Portland Intl.

DCA

Ronald Reagan Washington National

$331 Roundtrip, found 1 day ago

$331

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Fri, Aug 8 from Portland Intl. to Ronald Reagan Washington National, returning Tue, Aug 12, priced at $331 found 1 day ago

Thu, Aug 7 - Sat, Aug 16

PDX

Portland Intl.

DCA

Ronald Reagan Washington National

$334 Roundtrip, found 1 day ago

$334

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Thu, Aug 7 from Portland Intl. to Ronald Reagan Washington National, returning Sat, Aug 16, priced at $334 found 1 day ago

Fri, Aug 8 - Tue, Aug 12

PDX

Portland Intl.

IAD

Washington Dulles Intl.

$337 Roundtrip, found 4 days ago

$337

Roundtrip

found 4 days ago

Select Delta flight, departing Fri, Aug 8 from Portland Intl. to Washington Dulles Intl., returning Tue, Aug 12, priced at $337 found 4 days ago

Fri, Aug 8 - Sat, Aug 16

PDX

Portland Intl.

DCA

Ronald Reagan Washington National

$339 Roundtrip, found 1 day ago

$339

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Fri, Aug 8 from Portland Intl. to Ronald Reagan Washington National, returning Sat, Aug 16, priced at $339 found 1 day ago

Fri, Aug 8 - Fri, Aug 15

PDX

Portland Intl.

DCA

Ronald Reagan Washington National

$344 Roundtrip, found 1 day ago

$344

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Fri, Aug 8 from Portland Intl. to Ronald Reagan Washington National, returning Fri, Aug 15, priced at $344 found 1 day ago

Fri, Aug 8 - Mon, Aug 11

PDX

Portland Intl.

IAD

Washington Dulles Intl.

$346 Roundtrip, found 4 days ago

$346

Roundtrip

found 4 days ago

Select Delta flight, departing Fri, Aug 8 from Portland Intl. to Washington Dulles Intl., returning Mon, Aug 11, priced at $346 found 4 days ago

Fri, Aug 8 - Mon, Aug 11

PDX

Portland Intl.

IAD

Washington Dulles Intl.

$348 Roundtrip, found 4 days ago

$348

Roundtrip

found 4 days ago

Select United flight, departing Fri, Aug 8 from Portland Intl. to Washington Dulles Intl., returning Mon, Aug 11, priced at $348 found 4 days ago

Fri, Aug 8 - Fri, Aug 8

PDX

Portland Intl.

IAD

Washington Dulles Intl.

$357 Roundtrip, found 4 days ago

$357

Roundtrip

found 4 days ago

Select Delta flight, departing Fri, Aug 8 from Portland Intl. to Washington Dulles Intl., returning Fri, Aug 8, priced at $357 found 4 days ago

Fri, Aug 8 - Mon, Aug 11

PDX

Portland Intl.

IAD

Washington Dulles Intl.

$366 Roundtrip, found 4 days ago

$366

Roundtrip

found 4 days ago

Select United flight, departing Fri, Aug 8 from Portland Intl. to Washington Dulles Intl., returning Mon, Aug 11, priced at $366 found 4 days ago

Mon, Aug 11 - Wed, Aug 13

PDX

Portland Intl.

IAD

Washington Dulles Intl.

$378 Roundtrip, found 4 days ago

$378

Roundtrip

found 4 days ago

Select Delta flight, departing Mon, Aug 11 from Portland Intl. to Washington Dulles Intl., returning Wed, Aug 13, priced at $378 found 4 days ago

Fri, Aug 8 - Mon, Aug 11

PDX

Portland Intl.

IAD

Washington Dulles Intl.

$396 Roundtrip, found 4 days ago

$396

Roundtrip

found 4 days ago

Select Delta flight, departing Fri, Aug 8 from Portland Intl. to Washington Dulles Intl., returning Mon, Aug 11, priced at $396 found 4 days ago

Fri, Aug 8 - Mon, Aug 11

PDX

Portland Intl.

IAD

Washington Dulles Intl.

$397 Roundtrip, found 4 days ago

$397

Roundtrip

found 4 days ago

Select Delta flight, departing Fri, Aug 8 from Portland Intl. to Washington Dulles Intl., returning Mon, Aug 11, priced at $397 found 4 days ago

Fri, Aug 8 - Thu, Aug 14

PDX

Portland Intl.

IAD

Washington Dulles Intl.

$398 Roundtrip, found 4 days ago

$398

Roundtrip

found 4 days ago

Select Delta flight, departing Fri, Aug 8 from Portland Intl. to Washington Dulles Intl., returning Thu, Aug 14, priced at $398 found 4 days ago

Sat, Aug 9 - Tue, Aug 12

PDX

Portland Intl.

DCA

Ronald Reagan Washington National

$401 Roundtrip, found 1 day ago

$401

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Sat, Aug 9 from Portland Intl. to Ronald Reagan Washington National, returning Tue, Aug 12, priced at $401 found 1 day ago

Fri, Aug 8 - Mon, Aug 11

PDX

Portland Intl.

IAD

Washington Dulles Intl.

$421 Roundtrip, found 4 days ago

$421

Roundtrip

found 4 days ago

Select United flight, departing Fri, Aug 8 from Portland Intl. to Washington Dulles Intl., returning Mon, Aug 11, priced at $421 found 4 days ago

Tue, Aug 5 - Tue, Aug 12

PDX

Portland Intl.

IAD

Washington Dulles Intl.

$436 Roundtrip, found 4 days ago

$436

Roundtrip

found 4 days ago

Select Alaska Airlines flight, departing Tue, Aug 5 from Portland Intl. to Washington Dulles Intl., returning Tue, Aug 12, priced at $436 found 4 days ago

Fri, Aug 8 - Mon, Aug 11

PDX

Portland Intl.

IAD

Washington Dulles Intl.

$547 Roundtrip, found 4 days ago

$547

Roundtrip

found 4 days ago

Select American Airlines flight, departing Fri, Aug 8 from Portland Intl. to Washington Dulles Intl., returning Mon, Aug 11, priced at $547 found 4 days ago

Wed, Aug 6 - Fri, Aug 8

PDX

Portland Intl.

DCA

Ronald Reagan Washington National

$989 Roundtrip, found 1 day ago

$989

Roundtrip

found 1 day ago

Select JetBlue Airways flight, departing Wed, Aug 6 from Portland Intl. to Ronald Reagan Washington National, returning Fri, Aug 8, priced at $989 found 1 day ago