Cheap flights from Washington to Portland from $59

The cheapest month to fly to Portland from State of Washington is in January. Flight prices, which tend to average around $99, are often lower during this time because this is during the off-season. If you don’t want to visit Portland in January, then you should wait until August to fly from State of Washington, when ticket prices are also cheap, with an average price of $137.

The cheapest day to depart on your flight to Portland is on a Friday when prices can be found for as low as $349. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Portland is Sunday, with ticket prices averaging around $446.

The cheapest time of day to fly to Portland is in the morning when flights can be purchased for as low as $369. In the afternoon is when there is more demand to fly to Portland, so prices are often more expensive at around $425 per ticket.

Fly from Spokane to Portland for the best Washington - Portland flight prices

You are more likely to see cheaper flights to Portland from State of Washington when booking weeks ahead of your departure date. In general, you can expect to find flights to Portland for around $210 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Portland from State of Washington for as low as $127 on momondo.

There are 4 cabin classes available to choose from on Washington to Portland flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Alaska Airlines and Delta are the most popular carriers operating from Washington to Portland

Alaska Airlines, Delta and Hawaiian Airlines are the top three most popular airlines that fly to Portland from State of Washington according to our data. Alaska Airlines is the first choice among our users, with 76% of people opting to fly with this airline when traveling to Portland. Keep in mind that there are 4 different airlines that fly to Portland on a routine basis, so you have a few additional options to choose from.

55 flights are operational daily from State of Washington to Portland as of March 2026. The most popular departure time for this route is 3:00PM, with 41% of flights per day taking off in the afternoon.

As of March 2026, there are 391 flights per week flying from State of Washington to Portland. The most common day of the week flights depart is Thu, with 18% of flights taking off on this day.