$71 Cheap Spirit Airlines flights Newark Liberty Intl. Airport (EWR) to San Diego (SAN)

Finding cheap one-way Spirit Airlines flights from EWR to SAN from $71 on Expedia is a breeze — just filter by “Price (lowest to highest).” Alternatively, check out our budget-friendly round-trip fares from $141 for your next break.**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.

January is one of the cheapest months to get away to San Diego with Spirit Airlines. You could also find great deals on one-way and return fares in November.

For cheap Spirit Airlines fares from Liberty Intl. Airport (EWR) to San Diego Intl. Airport (SAN), start searching one to three months before your intended departure. Securing 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 typically the most affordable, while Monday is often the most expensive for domestic flights. You can save 6% on average by booking your trip 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.

Click on the “Nonstop” filter when searching for direct Spirit Airlines flights from EWR to SAN. It’s also a great way to compare other airlines servicing the same nonstop trip.

Find Spirit Airlines’s earliest flights from EWR to SAN by selecting our “Early Morning” and “Morning” filters. Not only will you get to where you’re going sooner, early departures also experience 20% 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.

Get on a Spirit Airlines flight from Liberty Intl. Airport (EWR) to San Diego, and you’ll probably come in to San Diego Intl. Airport (SAN). This is the airline’s main hub here.

Depart from EWR to SAN with Spirit Airlines and you can look forward to a range of benefits starting with a rewarding loyalty program. When you book through Expedia as a Free Spirit and One Key™ member, you may also earn OneKeyCash™* to use on select future travel purchases.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

It’s usually possible to reschedule or cancel your flight, although there may be a charge if your booking was made more than 24 hours ago. Prefer to keep your options open? Apply the “No cancel fee” and “Changes included” filters to find flights that won’t charge you extra if you have to alter your plans. To update your booking, head to “Trips,” select your flight and click on “Manage Booking” for more details.