Seattle (SEA) to Phoenix (PHX) Flights: Find Your Desert Escape
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Last updated Feb 16, 2026
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Tracking the May 7, 2026 departure — the cheapest date we found.
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Search FlightsTraveling from the lush, evergreen landscapes of the Pacific Northwest to the sun-drenched Valley of the Sun has never been easier, with numerous daily non-stop options connecting Seattle-Tacoma International Airport (SEA) to Phoenix Sky Harbor (PHX). Whether you are trading the misty Puget Sound for a round of world-class golf in Scottsdale, embarking on a business trip to the growing tech hub of the Southwest, or simply seeking some essential vitamin D during the long Washington winter, this three-hour flight offers a seamless transition between two of the most dynamic regions in the United States. Many major carriers service this route frequently, ensuring that travelers can find flexible schedules that cater to early morning departures or late-night arrivals depending on their specific itinerary needs and budget constraints.
Travel Tips
When packing for a flight from Seattle to Phoenix, always dress in layers; while you might leave Seattle in a heavy raincoat and boots, you will likely land in temperatures that are significantly higher, requiring breathable fabrics and sunglasses. To save money on airfare, try to book your tickets at least three to four weeks in advance, as last-minute prices tend to spike during the peak spring training baseball season in March when demand is at its highest. Additionally, consider utilizing the light rail systems in both cities—the Link Light Rail in Seattle and the Valley Metro Rail in Phoenix—to avoid expensive rideshare fees and heavy traffic near the airport terminals. Finally, remember to stay hydrated during the flight, as the transition from the humid maritime climate of the Northwest to the arid desert environment of Arizona can be taxing on your body if you are not prepared.
Airport Information
Seattle (SEA)
Seattle-Tacoma International Airport (SEA), commonly referred to as Sea-Tac, serves as the primary international gateway for the Pacific Northwest and is a major hub for Alaska Airlines and Delta Air Lines. Located about 14 miles south of downtown Seattle, the airport features three terminals and a wide array of Pacific Northwest-inspired dining options and local art installations. Travelers can enjoy views of Mount Rainier on clear days while navigating the modern facilities, which include upgraded security checkpoints and a variety of premium lounges for frequent flyers.
Phoenix (PHX)
Phoenix Sky Harbor International Airport (PHX) is known as America’s Friendliest Airport and serves as a major hub for American Airlines and a significant base for Southwest Airlines. Situated just three miles east of downtown Phoenix, it offers unparalleled convenience for travelers heading to the city center or nearby Scottsdale and Tempe. The airport is famous for its PHX Sky Train, which provides free transportation between terminals and the valley's light rail system, and it boasts impressive desert-themed architecture and an extensive collection of local Arizona art throughout its terminals.
Seasonal Pricing Patterns
Flight prices between Seattle and Phoenix fluctuate significantly based on the season and local events. The most expensive time to fly is typically from late February through early April, coinciding with MLB Spring Training and the peak of the winter snowbird season when many Washingtonians seek relief from the cold. Conversely, the cheapest fares are usually found during the sweltering summer months of July and August, when Phoenix temperatures regularly exceed 100 degrees. For the best balance of pleasant weather and affordable prices, consider traveling during the shoulder seasons of late October or early November.
Frequently Asked Questions
How long is the flight from SEA to PHX?
The average flight duration is approximately 2 hours and 55 minutes, covering a flight distance of about 1,100 miles.
Which airlines fly non-stop from Seattle to Phoenix?
Alaska Airlines, Delta Air Lines, Southwest Airlines, and American Airlines all offer frequent daily non-stop service on this specific route.
What is the best time of day to fly to avoid delays?
Early morning flights are statistically less likely to experience delays, as weather patterns in both Seattle and Phoenix are generally more stable before midday heat or coastal fog sets in.
Is there a time difference between Seattle and Phoenix?
Phoenix is in the Mountain Standard Time zone and does not observe Daylight Saving Time; therefore, it is in the same time zone as Seattle during the summer but one hour ahead during the winter months.
Can I use public transit to get from PHX to downtown Phoenix?
Yes, you can take the free PHX Sky Train from the terminal to the 44th St/Washington station, where you can transfer directly to the Valley Metro Rail for access to downtown.