Cheap flights from Portland to Spokane from $99

The month of October is, on average, the cheapest month to fly to Spokane from Portland, with most prices found around $152. If you’re not able to fly to Spokane in October, then January is your next best option. Flight prices from Portland to Spokane during January average around $187.

The cheapest day to depart on your flight to Spokane is on a Saturday when prices can be found for as low as $207. This is often the case because there is less demand to fly during this day of the week. On the other hand, Tuesday is the most expensive day to depart from Portland because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $378.

According to our data, the cheapest time of day to fly to Spokane is in the afternoon. momondo users have found flights departing from Portland to Spokane in the afternoon for as low as $248. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Try not to purchase tickets in the evening because they tend to be around $332. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

You are more likely to see cheaper flights to Spokane from Portland when booking weeks ahead of your departure date. In general, you can expect to find flights to Spokane for around $250 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Spokane from Portland for as low as $166 on momondo.

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

You could potentially save up to 10% on your flight if you consider stops on a Portland to Spokane flight.

As of March 2026, prices for Portland to Spokane flights are approximately 36% cheaper when compared to flights at the same time last year.

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

Alaska Airlines, Hawaiian Airlines and Delta are the top three most popular airlines that fly to Spokane from Portland according to our data. Alaska Airlines is the first choice among our users, with 83% of people opting to fly with this airline when traveling to Spokane. Keep in mind that there are 3 different airlines that fly to Spokane on a routine basis, so you have a few additional options to choose from.

The number of flights available between Portland and Spokane is 11 per day as of March 2026. The most frequent departure time is 9:00PM, with 40% of daily flights leaving at noon.

As of March 2026, 78 flights take off from Portland and land in Spokane each week. The most common flight departure day for this route is Mon, with 15% of weekly flights taking off on this day.