Cheap flights from Illinois to Spokane from $156

The month of October is, on average, the cheapest month to fly to Spokane from Illinois, with most prices found around $75. If you’re not able to fly to Spokane in October, then November is your next best option. Flight prices from Illinois to Spokane during November average around $98.

The cheapest day to depart on your flight to Spokane is on a Wednesday when prices can be found for as low as $307. This is often the case because there is less demand to fly during this day of the week. On the other hand, Sunday is the most expensive day to depart from Illinois because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $427.

According to our data, the cheapest time of day to fly to Spokane is in the morning. momondo users have found flights departing from Illinois to Spokane in the morning for as low as $360. 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 $415. Of course, these prices can vary depending on the time of year and what airport you fly to.

Fly from Chicago O'Hare Intl to Spokane for the best Illinois - Spokane flight prices

You are more likely to see cheaper flights to Spokane from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Spokane for around $359 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Spokane from Illinois for as low as $291 on momondo.

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

Alaska Airlines, Delta, and Southwest are the most popular carriers operating from Illinois to Spokane

American Airlines, United Airlines and Alaska Airlines are the top three most popular airlines that fly to Spokane from Illinois according to our data. American Airlines is the first choice among our users, with 59% of people opting to fly with this airline when traveling to Spokane. Keep in mind that there are 5 different airlines that fly to Spokane on a routine basis, so you have a few additional options to choose from.

As of May 2026, 6 flights take off from Illinois and land in Spokane each week. The most common flight departure day for this route is Mon, with 33% of weekly flights taking off on this day.

Flight times from Illinois to Spokane vary, but if you’re flying out of Chicago and flying into Spokane (one of the most popular routes), then the duration is 4h 03m on average. Another popular route from Illinois to Spokane is flying from Moline to Spokane, which will take roughly 7h 25m. Keep in mind that layovers or delays could extend your travel time.