$80 Cheap Southwest Airlines flights Seattle (SEA) to Phoenix (PHX)

You can discover cheap round-trip Southwest Airlines flights from $147 from SEA to PHX by sorting your results from “Price (lowest to highest)” on Expedia. Or look for deals from $80 for a one-way trip.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

Browse for round-trip or one-way flights to Phoenix in July or August. You could find a cheap fare with Southwest Airlines during these off-peak times.

To find cheap Southwest Airlines fares from Seattle - Tacoma Intl. Airport (SEA) to Sky Harbor Intl. Airport (PHX), start searching one to three months before your intended departure. Securing domestic flights 34 to 86 days in advance could save you 25% compared to booking just 6 to 12 days ahead. The day you book can also impact the overall cost. Sunday is typically the cheapest, while Monday is often the most expensive for domestic flights. You can save 6% on average by booking your flight on a Sunday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC’s global airline sales database.

Jet off on one of Southwest Airlines’s 14 direct weekly flights from Seattle - Tacoma Intl. Airport (SEA) to Sky Harbor Intl. Airport (PHX). To view available options, enter your destination, origin and dates and hit search. Then select the “Nonstop” and “Airline” filters.

From takeoff till touchdown, a direct Southwest Airlines flight from Seattle - Tacoma Intl. Airport (SEA) to Sky Harbor Intl. Airport (PHX) typically takes 2h 46m.

Southwest Airlines has the most flights from Seattle - Tacoma Intl. Airport (SEA) to Sky Harbor Intl. Airport (PHX) on Tuesday. With up to 2 daily departures, you’ll get the most options and flexibility on this day.

Setting off from SEA at 5:35AM UTC-8, the first Southwest Airlines flight to PHX arrives at 9:20AM UTC-7. Flying early means you’re less likely to encounter delays.* Don’t like early starts? The last Southwest Airlines flight from SEA to PHX departs at 4:20PM UTC-8 and touches down at 8:05PM UTC-7.*Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.

Southwest Airlines flights from Seattle - Tacoma Intl. Airport (SEA) to Phoenix arrive at Sky Harbor Intl. Airport (PHX). This is the main entry point here.

For the Seattle - Tacoma Intl. Airport (SEA) to Sky Harbor Intl. Airport (PHX) route, Southwest Airlines typically flies Boeing 737-700 and Boeing 737-800 planes. Remember that last-minute changes can occur for operational demands, so your flight could be on a different aircraft.

Changes are usually free within 24 hours of making your booking, but your airline may add a charge after that. For further information about altering your reservation, go to your “Trips,” select your flight and click on “Manage Booking.” If you’d like the flexibility to make changes without additional charges, tick the “Changes included” or “No cancel fee” filter when organizing your next getaway.