$104 Cheap Delta flights Colorado Springs (COS) to San Diego (SAN)

Set the “Price (lowest to highest)” filter on Expedia to find cheap Delta Air Lines return flights from $207 from COS to SAN. Affordable one-way tickets from $104 are available as well.**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.

January is one of the cheapest months to jet away to San Diego with Delta Air Lines. You could also find excellent prices on one-way and return fares in November.

Look for affordable Delta Air Lines flights from Colorado Springs Airport (COS) to San Diego Intl. Airport (SAN) one to three months prior to your day of departure. 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. No matter the fare type and itinerary, the ideal day to book a domestic flight is generally Sunday and the most expensive day tends to be Monday. Passengers who book on a Sunday can save 6% on average compared to those who book their travel 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.

Click on our “Nonstop” filter when looking for direct Delta Air Lines flights from COS to SAN. You’ll also be able to compare other airlines servicing the same direct route.

Browse Delta Air Lines’s earliest flights from COS to SAN by checking the “Morning” and “Early Morning” filters. Not only will you get to where you’re going sooner, early departures are also 20% less likely to be canceled.**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.

Delta Air Lines flights from Colorado Springs Airport (COS) to San Diego arrive at San Diego Intl. Airport (SAN). This is the main entry point to this destination.

Jetting off from COS to SAN with Delta Air Lines means enjoying a host of perks, 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 Delta SkyMiles points you can earn with Delta Air Lines.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Depending on the type of fare you purchased, a fee will generally apply if you modify or cancel your flight more than 24 hours after confirmation. To secure flexible fares, select our “Changes included” and “No cancel fee” boxes when you search for flights. For more information on canceling or changing your reservation, go to “Trips,” select your flight and tick “Manage Booking.”