Cheap flights from Seattle to Phoenix from C$ 159

The month of January is, on average, the cheapest month to fly to Phoenix from Seattle, with most prices found around C$ 259. The month of February is another great option to travel to Phoenix, with average flight prices from Seattle averaging around C$ 307.

The cheapest day to depart from Seattle to Phoenix is on a Tuesday. Travellers who choose to depart for Phoenix on a Tuesday will often find tickets for as low as C$ 219. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Phoenix on Sunday is C$ 414.

Our data shows that the cheapest Seattle to Phoenix flights are usually those with departure times in the evening. Our users have found flights to Phoenix in the evening for as low as C$ 225. Try not to purchase tickets at noon because they tend to be around C$ 361. Of course, these prices can vary depending on the time of year and what airport you fly to.

Fly from Seattle/Tacoma Intl to Phoenix Sky Harbor Intl for the best Seattle/Tacoma Intl - Phoenix flight prices

You are more likely to see cheaper flights to Phoenix from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Phoenix for around C$ 355 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Phoenix from Seattle for as low as C$ 264 on momondo.

There is only 1 cabin class available to choose from on Seattle to Phoenix flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Southwest, Alaska Airlines, and Delta are the most popular carriers operating from Seattle/Tacoma Intl to Phoenix

Frontier, Alaska Airlines and Delta are the top three most popular airlines that fly to Phoenix from Seattle according to our data. Frontier is the first choice among our users, with 34% of people opting to fly with this airline when travelling to Phoenix. Keep in mind that there are 5 different airlines that fly to Phoenix on a routine basis, so you have a few additional options to choose from.

Historically, on average around 16% of flights between Seattle and Phoenix have experienced a delay on any given week. The average delay length over the past 12 months has been 130 minutes.

Generally, flights departing at night tend to experience fewer delays. Flights departing in the evening have, in the past, seen delays more frequently in comparison.

Tuesday is statistically the day of the week that experiences the fewest delays on this flight route. Monday has historically seen more delays on average compared to the rest of the week.

According to our data, American Airlines has had the least delays on this route over the last 12 months, with about 11% of their flights experiencing any sort of delay.

As of August 2026, 24 flights take off from Seattle and land in Phoenix each day. The most common flight departure time for this route is 1:00p.m., with 40% of daily flights taking off in the evening.

The number of flights available between Seattle and Phoenix is 169 per week as of August 2026. The most frequent departure day is Mon, with 22% of weekly flights leaving on this day.