$151 Cheap United flights Cheyenne (CYS) to San Diego (SAN)

Grab affordable round-trip United Airlines flights from $264 from CYS to SAN by filtering your results from “Price (lowest to highest)” on Expedia. Or search for deals from $151 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.

Search for one-way or round-trip flights to San Diego in January or November. You could find a cheap fare with United Airlines during these off-peak times.

For cheap United Airlines fares from Cheyenne Regional Airport (CYS) to San Diego Intl. Airport (SAN), start searching one to three months before your planned 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 impact the overall 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.

Fill in your dates, click search and tick the “Nonstop” filter on Expedia to browse any direct flights from CYS to SAN with United Airlines or another airline.

To find the earliest departures from CYS to SAN with United Airlines, sort your results by “Early Morning” and “Morning.” Booking an early flight generally 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.

Hop on a United Airlines flight from Cheyenne Regional Airport (CYS) to San Diego, and you’ll likely come in to San Diego Intl. Airport (SAN). This is the airline’s primary hub in this destination.

A rewarding loyalty program and the ability to collect points through United Mileage Plus are the start of the reasons to jet off from CYS to SAN with United Airlines. Plus, when you join our One Key™ program, you can receive OneKeyCash™* in addition to 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.

Changes are generally free within 24 hours of booking, but your airline may add a charge after that time. For more information about modifying your flights, check out your “Trips,” select your flight and click on “Manage Booking.” If you’d like the freedom to change your itinerary without additional costs, check the “No cancel fee” or “Changes included” filter when organizing your next getaway.