| Outbound | Return | Airlines | Shop | Baggage | Price | ||
|---|---|---|---|---|---|---|---|
| Best option Portland-Oregon Washington DC | Outbound 09/19/25 direct AS0010 05h 06min | Return 09/29/25 direct AS0009 05h 43min |  Alaska Airlines |  | ? | $341 | |
| Portland-Oregon Washington DC | Outbound 09/19/25 direct AS0010 05h 06min | Return 09/29/25 direct AS0009 05h 43min | Alaska Airlines |  | ? | $354 | |
| Portland-Oregon Washington DC | Outbound 07/25/25 1 Stopover (SFO) AS0526, AS0008 07h 58min | Return 08/17/25 direct AS0009 05h 48min | Alaska Airlines | | ? | $360 | |
| Portland-Oregon Washington DC | Outbound 09/19/25 direct HA6710 05h 06min | Return 09/29/25 direct HA6709 05h 43min |  Hawaiian Airlines |  | $376 | ||
| Portland-Oregon Washington DC | Outbound 09/19/25 1 Stopover (DEN) UA0459, UA1234 06h 41min | Return 09/29/25 1 Stopover (IAH) UA0382, UA0279 09h 24min |  United Airlines |  | ? | $404 | |
| Portland-Oregon Washington DC | Outbound 07/25/25 1 Stopover (DFW) AA1460, AA1177 08h 42min | Return 08/17/25 1 Stopover (DFW) AA1650, AA2620 09h 59min |  American Airlines | | ? | $441 | |
| Portland-Oregon Washington DC | Outbound 07/25/25 1 Stopover (DEN) F91790, F90688 07h 27min | Return 08/17/25 direct HA6709 05h 48min |  Frontier Airlines | | $446 | ||
| Portland-Oregon Washington DC | Outbound 07/25/25 1 Stopover (SFO) AS0526, AS0008 07h 58min | Return 08/17/25 direct AS0009 05h 48min | Alaska Airlines |  | ? | $446 | |
| Portland-Oregon Washington DC | Outbound 07/25/25 1 Stopover (DEN) F91790, F90688 07h 27min | Return 08/17/25 1 Stopover (DEN) F90689, F92687 09h 15min | Frontier Airlines |  | $544 | ||
| Portland-Oregon Washington DC | Outbound 07/25/25 1 Stopover (DEN) F91790, F90688 07h 27min | Return 08/17/25 1 Stopover (DEN) F90689, F92687 09h 15min | Frontier Airlines |  | $551 |
Tips and tricks to help you find cheap flights from Portland Oregon to Washington DC
Favorite airline: e.g. Frontier Airlines, United Airlines
The favorite airline for flights from Portland-Oregon to Washington DC is Frontier Airlines.
Frontier Airlines
33 %
United Airlines
33 %
Alaska Airlines
17 %