Kaiser Permanente STP presented by Alaska Airlines

STP 2018 logo


New STP Hall of Fame: for riders who have ridden multiple times, we're collecting your information to be included in our hall of fame—just fill out the form!


Coming from out of town?  Our presenting sponsor, Alaska Airlines, is offering discount flights to registered riders.  

Saturday, July 14- Sunday, July 15, 2018

This 200+ mile bicycle ride is the largest multi-day bicycle event in the Northwest, with up to 10,000 participants riding from Seattle to Portland in one or two days. The route takes you through the scenic valleys, forests, and farmlands of western Washington and Oregon. Come ride what Bicycling Magazine has listed as one of the best cycling events in the nation!

Participants can choose to ride the event in one day or two! The middway point of the 203 mile course is Centralia/Chehalis and Centralia College hosts the major free camping location (Chehalis Recreation park is the second largest).  However, two day riders can stay as far away as Kelso, WA (150 miles on day one) and a whole lot of points in between.  STP day one is sort of a choose your own adventure and local community groups and non profits provide housing, meals, and a whole lot of fun no matter where you choose to stay.  See the lodging page for details.  There are not many hotels on course and the veteran riders often sell them out prior to the event even opening.  We do not advertise these places as we always encourage folks to give back to the communities through which we ride and providing food, accommodation, and services is a major fundraiser for communities along the route. 

The STP is a major economic boost to the area and in addition to a lot of fundraising along the route your registration fee not only supports Cascade Bicycle Club in it's mission to improve lives through bicycling, but also contributes approx. $100,000 every year to schools, non-profits, and other community groups who provide direct services to our free food stops and at our Finish Line. 


  • An epic journey connecting two of America's great bicycling cities
  • The choice of a one-day or two-day event 
  • An amazing network of volunteers and organizations to help you reach the finish line
  • A diverse community of cyclists working towards one common goal: Portland or BUST!

Fun Facts:

  • 10,000 registered riders from 7 countries and 45 states
  • Eldest rider: 89
  • 8,212 Washington riders (2,433 from Seattle)
  • 1,242 Oregon riders (573 from Portland)
  • STP sells out to its max. capacity of 10,000 riders every year (often by March). Don't delay!

For new riders reference here's the 2017 Ride Guide

Download & print the 2017 Ride Guide.


Who does your registration fee support?

The Kaiser Permanente Seattle to Portland presented by Alaska Airlines is a joint fundraiser for Cascade Bicycle Club and WA Bikes – profits are shared equally. Your STP ride registration makes Washington a better place for people riding bikes:

  • You are championing better and safer bicycle infrastructure.
  • You are providing bicycle education programs for children, families, school groups and everyone else who wants to ride a bike.
  • You are empowering youth from diverse communities through the Major Taylor Project.
  • You are making it possible for Cascade to offer over 2,500 free group rides every year.
  • Ultimately, you are getting more people on bikes.

Our events are made possible with support from the local communities through which we ride. In addition to supporting Cascade’s programs, your registration fee helps Cascade give back to these communities and the organizations that thrive there. We’re grateful for all their continued support.

Filmed and produced by After the Uniform Films 

Thanks to our Title Sponsor

We’re excited to announce Kaiser Permanente as the title sponsor of the 39th Annual Kaiser Permanente Seattle to Portland presented by Alaska Airlines! We’re thrilled and grateful to have Kaiser Permanente’s support on the road to Portland. 

Thanks to our Presenting Sponsor

We’re excited to welcome back Alaska Airlines for their fourth year as presenting sponsor of this year’s event. Alaska invites you to start exploring at 30,000 feet. Your journey becomes part of the adventure as you stream entertainment directly to your device, enjoy food offerings from the Pacific Northwest, and relax in their custom, leather, power-equipped seats. Their award-winning service and in-flight experience are designed to exceed your travel expectations.

Cascade Bicycle Club

Give this ride as a gift, and share the joy of bicycling with your friends and family!

Shop for Gift Registrations!