$40 Cheap Frontier Airlines flights San Francisco (SFO) to San Diego (SAN)

You’ll find affordable return Frontier Airlines flights from $63 from SFO to SAN by organizing your results from “Price (lowest to highest)” on Expedia. Or search for bargains from $40 for a one-way trip.**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.

Frontier Airlines flights to San Diego are generally cheaper in the quieter months of January and November. Whether you’re searching for a one-way or a return ticket, you could find a better deal then.

To find cheap Frontier Airlines fares from San Francisco Intl. Airport (SFO) 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 influence the overall cost. Sunday is usually the most affordable, while Monday is often the most expensive for domestic flights. You can save 6% on average by booking 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.

Book a seat on one of Frontier Airlines’s 8 direct weekly flights from San Francisco Intl. Airport (SFO) to San Diego Intl. Airport (SAN). To view available options, enter your dates, destination and origin and hit search. Then use the “Nonstop” and “Airline” filters.

Depart San Francisco Intl. Airport (SFO) for San Diego Intl. Airport (SAN) on a direct Frontier Airlines flight, and you’ll be in the air for approximately 1h 44m.

Thursday has the most Frontier Airlines flights from San Francisco Intl. Airport (SFO) to San Diego Intl. Airport (SAN). With 2 daily departures, this is the best day of the week to book something that will suit your plans.

The earliest flight from SFO to SAN with Frontier Airlines departs at 8:06AM UTC-8. You’ll land at 9:50AM UTC-8. The last Frontier Airlines flight of the day leaves at 5:27PM UTC-8 and arrives at 7:11PM UTC-8. With approximately 20% fewer cancellations for early and mid-morning departures, starting your travel day early is generally the wisest option.**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.

Take a Frontier Airlines flight from San Francisco Intl. Airport (SFO) to San Diego, and you’ll probably land at San Diego Intl. Airport (SAN). This is the airline’s primary hub in this city.

Fly from SFO to SAN with Frontier Airlines and enjoy a range of perks including a rewarding loyalty program. When booking through Expedia as a Frontier Miles and One Key™ member, you may also earn OneKeyCash™* to spend on select future travel purchases.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Take a Frontier Airlines flight from San Francisco Intl. Airport (SFO) to San Diego Intl. Airport (SAN), and you’ll probably be on an Airbus A320neo. Bear in mind though, that the aircraft type can vary depending on operational demands.

Changes are often free within 24 hours of making your booking, but your airline may charge you after that. For more details about altering your flights, check out your “Trips,” select your flight and click on “Manage Booking.” If you want the freedom to change your plans without being charged, tick the “Changes included” and “No cancel fee” filters when organizing your next escape.