$158 Cheap Alaska Airlines flights Baltimore (BWI) to San Diego (SAN)

View $158 flight on Tue, Jan 6, 2026Opens in a new window
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$158 Cheap Alaska Airlines flights Baltimore (BWI) to San Diego (SAN)

Prices were available within the past 7 days and start at $158 for one-way flights and $296 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Tue, Jan 6 - Tue, Jan 13
BWI
Baltimore
SAN
San Diego
$296 Roundtrip, found 6 hours ago
$296
Roundtrip
found 6 hours ago
Select Alaska Airlines flight, departing Tue, Jan 6 from Baltimore to San Diego, returning Tue, Jan 13, priced at $296 found 6 hours ago

Find the cheapest month to fly from Baltimore (BWI) to San Diego (SAN)

September is typically the cheapest month to fly

From $135 - $356 per traveler.

Alternative airports near San Diego

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to General Abelardo L. Rodriguez Intl. TIJ. Average driving time to city center is 26 minutes. Flights from $850
TIJ
General Abelardo L. Rodriguez Intl.
Average driving time to city center26 min
Flights from $850
Flights from Baltimore (BWI) to San Diego (SAN)
Origin airport
Baltimore Washington Intl. Thurgood Marshall
Destination airport
San Diego Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Southwest Airlines, Sun Country Airlines, United
Popular airline
Southwest Airlines
Distance
2290 mi
Average flight time
4 hours 22 mins

Frequently asked questions

How much is an Alaska Airlines flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to San Diego Intl. Airport (SAN)?
You'll discover affordable round-trip Alaska Airlines flights from $296 from BWI to SAN by sorting your results from "Price (lowest to highest)" on Expedia. Or search for bargains from $158 for a one-way journey.**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.
What is the cheapest month to fly from BWI to SAN with Alaska Airlines?
Alaska Airlines flights to San Diego are usually cheaper in the low-season months of January and November. Whether you need a one-way or a return ticket, you could find a better deal then.
What is the cheapest time to book flights from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to San Diego Intl. Airport (SAN) with Alaska Airlines?
Search for affordable Alaska Airlines flights from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to San Diego Intl. Airport (SAN) one to three months ahead of your departure date. 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. Regardless of fare type and journey, the best day of the week 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 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.
Does Alaska Airlines fly nonstop from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to San Diego Intl. Airport (SAN)?
Fill in your dates, press search and check "Nonstop" on Expedia to browse any direct flights from BWI to SAN with Alaska Airlines or another airline.
What is the earliest Alaska Airlines flight from BWI to SAN?
To find the earliest departure from BWI to SAN with Alaska Airlines, sort your results by "Early Morning" and "Morning." Choosing an early flight generally 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.
What airports does Alaska Airlines fly into in San Diego?
San Diego Intl. Airport (SAN) is the main San Diego hub for Alaska Airlines flights from Baltimore Washington Intl. Thurgood Marshall Airport (BWI).
Why fly with Alaska Airlines from BWI to SAN?
Traveling from BWI to SAN with Alaska Airlines comes with a host of benefits, such as a rewarding loyalty program and an excellent in-flight experience. Plus, when you book through Expedia, One Key™ members can earn OneKeyCash™* to use on select future travel purchases. That's in addition to the Mileage Plan points you can earn with Alaska Airlines.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
Can I change or cancel my Alaska Airlines flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to San Diego Intl. Airport (SAN)?
It's generally possible to cancel or reschedule your flight, although additional charges may apply if you made your booking more than 24 hours ago. Want to keep your options open? Apply the "No cancel fee" or "Changes included" filter to find flights that won't penalize you if you need to alter your plans. To modify your booking, visit "Trips," select your flight and click on "Manage Booking" for more details.

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*Available to One Key members.