Cheap Alaska Airlines flights from St. Louis to San Diego (STL→SAN)

    notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
    deals illustration

    Book smarter

    Save up to 40% on select hotels after you book a flight*
    trophy illustration

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Frequently asked questions

How much is an Alaska Airlines flight from Lambert-St. Louis Intl. Airport (STL) to San Diego Intl. Airport (SAN)?
Finding cheap one-way Alaska Airlines flights from STL to SAN on Expedia couldn't be simpler — just filter by "Price (lowest to highest)." Alternatively, check out our budget-friendly round-trip fares for your next exciting holiday.**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 STL to SAN with Alaska Airlines?
January is one of the cheapest months to get away to San Diego with Alaska Airlines. You could also find great prices on one-way and return fares in November.
Does Alaska Airlines fly nonstop from Lambert-St. Louis Intl. Airport (STL) to San Diego Intl. Airport (SAN)?
To find out if there's a direct trip from STL to SAN with Alaska Airlines or another airline, select the "Nonstop" filter when browsing for tickets.
What airports does Alaska Airlines fly into in San Diego?
Alaska Airlines flights from Lambert-St. Louis Intl. Airport (STL) to San Diego touch down at San Diego Intl. Airport (SAN). This is the main entry point to this city.
Can I change or cancel my Alaska Airlines flight from Lambert-St. Louis Intl. Airport (STL) to San Diego Intl. Airport (SAN)?
Typically, you can reschedule or cancel your flight, although additional fees may apply if you made your booking over 24 hours ago. Need to keep your options open? Use Expedia's "Changes included" or "No cancel fee" filter to find flights that won't charge you extra if you have to revise your plans. To make changes, visit "Trips," select your flight and click on "Manage Booking" for more details.

Travel information

Origin airport
Lambert-St. Louis Intl.
Destination airport
San Diego Intl.
Distance
2487 km
Average flight time
2 hours 8 mins

Explore a world of travel with Expedia

*Available to Expedia members.