$120 Cheap United flights San Diego (SAN) to Colorado Springs (COS)

Use the “Price (lowest to highest)” filter on Expedia to look for cheap United Airlines return flights from $237 from SAN to COS. Affordable one-way options from $120 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.

United Airlines flights to Colorado Springs are often cheaper in the off-peak months of January and February. Whether you’re searching for a return or one-way ticket, you could score a better deal then.

For cheap United Airlines fares from San Diego Intl. Airport (SAN) to Colorado Springs Airport (COS), 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 cost. Sunday tends to be the cheapest, while Monday is often the most expensive for domestic flights. You can save 6% on average by booking your flight 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.

Simply enter your dates, hit search and select the “Nonstop” filter on Expedia to find any direct flights from SAN to COS with United Airlines or other carriers.

To find the earliest departure from SAN to COS with United Airlines, sort your results by “Early Morning” and “Morning.” Booking an early flight usually means you’ll experience fewer 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.

United Airlines flights from San Diego Intl. Airport (SAN) to Colorado Springs land at Colorado Springs Airport (COS). This is the main entry point to this destination.

A rewarding loyalty program and the ability to rack up points through United Mileage Plus are the start of the reasons to travel from SAN to COS with United Airlines. Plus, by joining Expedia’s free One Key™ program, you can receive OneKeyCash™* alongside United Airlines’s loyalty program earnings. It’s yours to spend on your next adventure.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

It’s generally possible to cancel or reschedule your flight, although additional charges may apply if you booked more than 24 hours ago. Prefer to keep your options open? Use our “Changes included” and “No cancel fee” filters 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.