Cheap Alaska Airlines Flights from Denver to San Diego (DEN→SAN)

View NZ$102 flight on Fri, 5 Dec 2025Opens in a new window
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Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Frequently asked questions

How much is an Alaska Airlines flight from Denver Intl. Airport (DEN) to San Diego Intl. Airport (SAN)?
You can find cheap round-trip Alaska Airlines flights from DEN to SAN by sorting your results from "Price (lowest to highest)" on Expedia. Or search for deals from NZ$102 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 DEN to SAN with Alaska Airlines?
Search for round-trip or one-way flights to San Diego in January or November. You could find a cheap fare with Alaska Airlines during these quieter months.
Does Alaska Airlines fly nonstop from Denver Intl. Airport (DEN) to San Diego Intl. Airport (SAN)?
Click on the "Nonstop" filter when browsing for direct Alaska Airlines flights from DEN to SAN. It's also a great way to compare other airlines offering the same nonstop trip.
What airports does Alaska Airlines fly into in San Diego?
Take an Alaska Airlines flight from Denver Intl. Airport (DEN) to San Diego, and you're most likely to land at San Diego Intl. Airport (SAN). This is the airline's primary hub here.
Can I change or cancel my Alaska Airlines flight from Denver Intl. Airport (DEN) to San Diego Intl. Airport (SAN)?
Changes are usually free within 24 hours of booking, but your airline may add a charge after that time. For more information about altering your flights, check out your "Trips," select your flight and click on "Manage Booking." If you'd like the flexibility to change your itinerary without extra charges, check the "No cancel fee" or "Changes included" filter when organising your next adventure.

Travel information

Origin airport
Denver Intl.
Destination airport
San Diego Intl.
Distance
1363 km
Average flight time
1 hour 26 mins

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