Alaska Airlines is expanding its presence in Southern California this fall, increasing existing and adding new service to two of the region’s busiest airports.

The airline announced Thursday it would be offering its largest Southern California schedule in years, with more flights going in and out of LAX and San Diego International Airport (SAN).

Beginning in October, new service will connect Los Angeles with Washington’s Tri-Cities, a 300,000-population metro area comprised of the cities of Pasco, Kennewick, and Richland, Washington.

Alaska is also bringing back its LAX-to-Reno flights, which it says were a guest favorite.

Also on the horizon, Alaska will add a 39th nonstop destination from San Diego, beginning new service to Las Vegas.

These flights are available for booking now, with service officially beginning in October 1.

In addition to new service, Alaska says it is adding more flights to destinations it already serves out of LAX, including its existing routes linking to Boise, Idaho; Medford and Portland, Oregon; San Jose and Santa Rosa, California; and Seattle, Washington. Passenger capacity on those routes will be increased by more than 25%, Alaska says.

When the expanded schedule officially rolls out in October, Alaska says it will offer more daily flights to West Coast destinations than any airline at LAX.

“As the only airline based on the West Coast, we’re committed to growth in Southern California, and I’m excited that we will offer our largest schedule out of the region in recent years,” said Neil Thwaites, regional vice president of California at Alaska Airlines.

Thwaites says the Reno and Pasco flights from LAX will provide more options to destinations that its customers visit frequently. He also says the new expanded service in San Diego solidifies the Alaska’s title as the airline offering the most nonstop destinations from the San Diego airport.

Airport officials from both LAX and SAN lauded the service expansion and said they were looking forward to growing their respective partnerships with Alaska Airlines.

For more information about routes and ticketing information, click here.

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