$177 Cheap United flights Columbus (CMH) to San Diego (SAN)

Apply the “Price (lowest to highest)” filter on Expedia to search for cheap United Airlines round-trip flights from $353 from CMH to SAN. Affordable one-way options from $177 are also on offer.**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.

Browse for one-way or round-trip flights to San Diego in January or November. You could find lower fares with United Airlines during these off-peak travel months.

Start searching one to three months ahead of your departure date to score cheap fares on United Airlines flights from John Glenn Columbus Intl. Airport (CMH) to San Diego Intl. Airport (SAN). You can save 25% by booking your domestic flight 34 to 86 days in advance versus last-minute reservations made 6 to 12 days out. You could also cut costs by buying your fare on a Sunday, as it’s 6% cheaper on average than a Monday, the most expensive day to book.* Get your timing spot on, and you can enjoy significant savings on domestic flights.*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 browsing for direct United Airlines flights from CMH to SAN. You’ll also be able to compare other carriers offering the same direct route.

Browse United Airlines’s earliest flights from CMH to SAN by checking our “Early Morning” and “Morning” filters. Not only will you arrive at your destination sooner, early departures also have a 20% less chance of being 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.

United Airlines flights from John Glenn Columbus Intl. Airport (CMH) to San Diego come in to land at San Diego Intl. Airport (SAN). This is the main gateway to this city.

A rewarding loyalty program and the chance to rack up points through United Mileage Plus are the start of the reasons to jet off from CMH to SAN with United Airlines. Plus, by joining Expedia’s free One Key™ program, you can receive OneKeyCash™* alongside any airline loyalty program earnings. You can put it toward your future trips.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Depending on your ticket type, a fee typically applies if you change or cancel your booking more than 24 hours after it’s confirmed. To find flexible fares, select our “No cancel fee” or “Changes included” filter when looking for flights. For more information on changing or canceling your reservation, go to “Trips,” select your flight and tick “Manage Booking.”