$69 Cheap Southwest Airlines flights San Diego (SAN) to Phoenix (PHX)

Scoring cheap one-way Southwest Airlines flights from SAN to PHX from $69 on Expedia is a cinch --- just filter by "Price (lowest to highest)." Alternatively, check out our budget-friendly return fares from $137 for your next getaway.**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.

Search for affordable Southwest Airlines flights from San Diego Intl. Airport (SAN) to Sky Harbor Intl. Airport (PHX) one to three months ahead of your departure. Travelers who book domestic flights 34 to 86 days in advance can save 25% compared to those who book just 6 to 12 days ahead. No matter the fare class and journey, the ideal day to book a domestic flight is usually Sunday and the most expensive is typically Monday. Passengers who book on a Sunday can save 6% on average compared to those who book their travel on a Monday.**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.

The first flight from SAN to PHX with Southwest Airlines leaves at 6:40AM UTC-8. You'll land at 9:00AM UTC-7. The last Southwest Airlines flight of the day leaves at 7:40PM UTC-8 and arrives at 10:05PM UTC-7. With around 20% fewer cancellations for departures before midday, heading out early is typically the best choice.**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.