Alaska Airlines is growing in San Diego once again. The only national airline based on the West Coast is adding three new nonstop routes from its the Southern California City and increasing frequencies on others.
Three New Routes from San Diego
Alaska Airlines is launching three new routes from San Diego International Airport (SAN) later this year. The carrier will operate these new routes 3x daily using a mix of Boeing 737 and Embraer E175 aircraft.
The first new route will be between San Diego and Phoenix Sky Harbor International Airport (PHX). Alaska will fly 3x daily on the route using Boeing 737 aircraft beginning August 20, 2025.
On October 4, 2025, Denver International Airport (DEN) and Chicago O’Hare International Airport (ORD) join the Alaska Airlines network out of San Diego. The Chicago route will use Boeing 737 aircraft while Denver will see a mix of Boeing 737s and Embraer E175 aircraft operated by one of Alaska’s regional partners.
Ben Minicucci, CEO of Alaska Air Group, the parent company of Alaska Airlines and Hawaiian Airlines, said this about the new service:
“We’re proud to already serve San Diego and the surrounding region with the most nonstop destinations from San Diego. These exciting new additions to our network further expand our ability to take San Diegans directly to where they want to go, better than any other airline, with our premium onboard service and global loyalty program.”
Four Cities See a Frequency Boost
In addition to three new routes, Alaska Airlines is increasing frequencies on some of its most popular routes. On October 26, 2025, the Seattle based carrier will significantly increase the number of flights between San Diego and Las Vegas (LAS), Sacramento (SAC), Salt Lake City (SLC), and San Jose (SJC).
| Route | New Frequency | Current Frequency |
|---|---|---|
| Las Vegas – San Diego | 6x Daily | 4x Daily |
| Sacramento – San Diego | 6x Daily | 4x Daily |
| Salt Lake City – San Diego | 3x Daily | 1x Daily |
| San Jose – San Diego | 6x Daily | 4x Daily |
With the increase in frequencies and new routes, Alaska Airlines, Hawaiian Airlines, and its regional partners will operate more than 90 peak day departures to 44 destinations throughout the continental United States, Mexico, and four of the Hawaiian Islands. Alaska also launched the only nonstop flight between San Diego and Ronald Reagan Washington National Airport (DCA) in Washington D.C. earlier this year.
Kimberly Becker, San Diego County Regional Airport Authority President and CEO, said this about Alaska’s expansion:
“We are very pleased that Alaska Airlines is continuing to grow its service from San Diego. The timing is perfect for adding new routes and increasing frequency to existing flights. We look forward to welcoming both leisure and business visitors to our year-round sunny climate while providing more flights from SAN to destinations across the country.”
Summary
Alaska Airlines is increasing its presence in San Diego with the launch of three new routes and expanded frequencies on four more. The OneWorld Alliance member will operate more than 90 daily departures to 44 destinations from the Southern California airport once the new services start later this year.
