For peak summer holiday travel, fly nonstop from Seattle to Portland for $97 roundtrip on Delta or Alaska Airlines. This fare also works in the reverse direction from Portland to Seattle.
Travel Availability
Travel from June 29 - July 6, or from August 30 - September 4.
I found flights for a quick trip over 4th of July, departing Seattle SEA on an evening flight Wednesday, July 3, returning from Portland PDX on an afternoon flight Friday, July 5.
I also found flights for a trip on peak travel days over Labor Day weekend, departing Portland PDX on Friday evening, August 30, returning from Seattle SEA on Monday evening, September 2.
Related: Weekend Travel Deals Are Now Easier to Find
Baggage
This fare includes a carry-on bag plus one personal item. A checked bag costs $30 each way.
Seat Assignments
On Delta's Basic Economy fare, seats will be assigned at random upon check-in for this price. Alaska Airlines has limited seat selection in the back of the plane.
Alternate Fares
Main Cabin Economy fares are only $20 more roundtrip, which comes to $117. This will include standard advanced seat assignments and allow ticket changes/upgrades for a fee. A checked bag costs the same $30 each way.
If you're willing to pay a little extra, for $125 roundtrip you can book a seat in Delta's Premium Economy (Comfort +) cabin. You'll get up to 4" of extra legroom, dedicated overhead bin space, and early boarding.
For booking info, see our fare details for 4th of July travel and Labor Day Weekend travel.
And for more summer holiday travel deals, check out our dedicated pages for Fourth of July Getaways and Labor Day Getaways.
Need a hotel for your holiday trip? Check what's available on Hotelwatchdog.