$169 Cheap United flights Grand Rapids (GRR) to San Diego (SAN)

Grab affordable return United Airlines flights from $307 from GRR to SAN by sorting your results from “Price (lowest to highest)” on Expedia. Or search for deals from $169 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.

United Airlines flights to San Diego are usually more affordable in the low-season months of January and November. Whether you need a return or one-way ticket, you could find a better deal then.

Start searching one to three months ahead of your departure date to score cheap fares on United Airlines flights from Gerald R. Ford Intl. Airport (GRR) 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.* Time it well, and you can enjoy significant savings on domestic trips.*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.

Enter your dates, press search and tick the “Nonstop” filter on Expedia to find any direct flights from GRR to SAN with United Airlines or another carrier.

Browse United Airlines’s earliest flights from GRR to SAN by using our “Morning” and “Early Morning” filters. Not only will you get to 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 Gerald R. Ford Intl. Airport (GRR) to San Diego land at San Diego Intl. Airport (SAN). This is the main entry point here.

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 GRR to SAN with United Airlines. Plus, when you join our One Key™ program, you can earn OneKeyCash™* in addition to any airline 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.

In most cases, you can reschedule or cancel your flight, although additional fees may apply if you made your booking more than 24 hours ago. Prefer to keep your options open? Make use of Expedia’s “No cancel fee” or “Changes included” filter to find flights that won’t charge you extra if you have to adjust your plans. To update your itinerary, visit “Trips,” select your flight and click on “Manage Booking” for more information.