
Flights from Washington to St. Helens
Cheapest flights from Washington
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, Jun 23 - Thu, Jun 26
BWI
Baltimore Washington Intl. Thurgood Marshall
PDX
Portland Intl.
$294 Roundtrip, found 1 day ago
$294
Roundtrip
found 1 day ago

Mon, Jun 23 - Fri, Jun 27
BWI
Baltimore Washington Intl. Thurgood Marshall
PDX
Portland Intl.
$314 Roundtrip, found 1 day ago
$314
Roundtrip
found 1 day ago

Sat, Jun 21 - Thu, Jun 26
BWI
Baltimore Washington Intl. Thurgood Marshall
PDX
Portland Intl.
$324 Roundtrip, found 1 day ago
$324
Roundtrip
found 1 day ago

Sat, Jul 19 - Wed, Jul 23
IAD
Washington Dulles Intl.
PDX
Portland Intl.
$337 Roundtrip, found 1 hour ago
$337
Roundtrip
found 1 hour ago

Sat, Jun 21 - Fri, Jun 27
BWI
Baltimore Washington Intl. Thurgood Marshall
PDX
Portland Intl.
$344 Roundtrip, found 1 day ago
$344
Roundtrip
found 1 day ago

Sat, Jul 19 - Wed, Jul 23
IAD
Washington Dulles Intl.
PDX
Portland Intl.
$347 Roundtrip, found 1 hour ago
$347
Roundtrip
found 1 hour ago

Sat, Jul 19 - Wed, Jul 23
IAD
Washington Dulles Intl.
PDX
Portland Intl.
$347 Roundtrip, found 1 hour ago
$347
Roundtrip
found 1 hour ago

Sat, Jun 21 - Tue, Jun 24
BWI
Baltimore Washington Intl. Thurgood Marshall
PDX
Portland Intl.
$354 Roundtrip, found 1 day ago
$354
Roundtrip
found 1 day ago

Tue, Jul 22 - Wed, Jul 23
IAD
Washington Dulles Intl.
PDX
Portland Intl.
$357 Roundtrip, found 1 hour ago
$357
Roundtrip
found 1 hour ago

Tue, Jul 22 - Sat, Jul 26
IAD
Washington Dulles Intl.
PDX
Portland Intl.
$367 Roundtrip, found 1 hour ago
$367
Roundtrip
found 1 hour ago

Mon, Jun 23 - Mon, Jun 23
BWI
Baltimore Washington Intl. Thurgood Marshall
PDX
Portland Intl.
$374 Roundtrip, found 1 day ago
$374
Roundtrip
found 1 day ago

Sat, Jul 19 - Wed, Jul 23
IAD
Washington Dulles Intl.
PDX
Portland Intl.
$376 Roundtrip, found 1 hour ago
$376
Roundtrip
found 1 hour ago

Sat, Jul 19 - Wed, Jul 23
IAD
Washington Dulles Intl.
PDX
Portland Intl.
$380 Roundtrip, found 1 hour ago
$380
Roundtrip
found 1 hour ago

Sat, Jul 19 - Wed, Jul 23
IAD
Washington Dulles Intl.
PDX
Portland Intl.
$386 Roundtrip, found 1 hour ago
$386
Roundtrip
found 1 hour ago

Wed, Jul 16 - Tue, Jul 22
IAD
Washington Dulles Intl.
PDX
Portland Intl.
$386 Roundtrip, found 1 hour ago
$386
Roundtrip
found 1 hour ago

Sat, Jul 19 - Wed, Jul 23
IAD
Washington Dulles Intl.
PDX
Portland Intl.
$390 Roundtrip, found 1 hour ago
$390
Roundtrip
found 1 hour ago

Thu, Jun 19 - Thu, Jun 26
BWI
Baltimore Washington Intl. Thurgood Marshall
PDX
Portland Intl.
$395 Roundtrip, found 1 day ago
$395
Roundtrip
found 1 day ago

Fri, Jul 18 - Sun, Jul 20
IAD
Washington Dulles Intl.
PDX
Portland Intl.
$440 Roundtrip, found 1 hour ago
$440
Roundtrip
found 1 hour ago

Fri, Jul 18 - Tue, Jul 22
IAD
Washington Dulles Intl.
PDX
Portland Intl.
$474 Roundtrip, found 1 hour ago
$474
Roundtrip
found 1 hour ago

Sat, Jul 19 - Wed, Jul 23
IAD
Washington Dulles Intl.
PDX
Portland Intl.
$477 Roundtrip, found 1 hour ago
$477
Roundtrip
found 1 hour ago