$121 Cheap Alaska Airlines flights Bellingham (BLI) to San Diego (SAN)

Apply the “Price (lowest to highest)” filter on Expedia to search for cheap Alaska Airlines return flights from $244 from BLI to SAN. Affordable one-way tickets from $121 are available too.**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 return or one-way flights to San Diego in January or November. You could find cheaper fares with Alaska Airlines during these quieter months.

For cheap Alaska Airlines fares from Bellingham Intl. Airport (BLI) to San Diego Intl. Airport (SAN), start searching one to three months before your intended departure. Reserving 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 affect the price you pay. Sunday is generally the most affordable, while Monday is often the most expensive for domestic flights. You can save 6% on average by choosing to book 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.

To figure out if there’s a direct route from BLI to SAN with Alaska Airlines or other carriers, use our “Nonstop” filter when searching for flights.

To find the earliest departure from BLI to SAN with Alaska Airlines, filter your search by “Early Morning” and “Morning.” Choosing an early flight usually means you’re less likely to experience cancellations.**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.

San Diego Intl. Airport (SAN) is the main San Diego gateway for Alaska Airlines flights from Bellingham Intl. Airport (BLI).

Alaska Airlines makes flying from BLI to SAN enjoyable with a rewarding loyalty program and top-tier customer service. You even have the chance to collect points with Mileage Plan. Remember to join our free One Key™ rewards program to earn OneKeyCash™*, which can be redeemed on future bookings.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

It’s generally possible to reschedule or cancel your flight, although there may be additional fees if your booking was made over 24 hours ago. Want to keep your options open? Use our “No cancel fee” or “Changes included” filter to find flights that won’t charge you extra if you have to adjust your plans. To make changes, go to “Trips,” select your flight and click on “Manage Booking” for more information.