$199 Cheap United flights San Antonio (SAT) to Newark Liberty Intl. Airport (EWR)

You can find cheap round-trip United Airlines flights from $239 from SAT to EWR by filtering your results from "Price (lowest to highest)" on Expedia. Or search for options from $199 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.

Begin your search one to three months before your departure to score cheaper fares on United Airlines flights from San Antonio Intl. Airport (SAT) to Liberty Intl. Airport (EWR). You can save 25% by booking your domestic flight 34 to 86 days in advance compared to last-minute reservations made 6 to 12 days out. You could also reduce 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 the timing right, and you can enjoy significant savings on domestic journeys.*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.

The earliest flight from SAT to EWR with United Airlines leaves at 12:14PM UTC-6. You'll touch down at 4:59PM UTC-5. The final United Airlines flight of the day takes off at 12:45PM UTC-6 and arrives at 5:30PM UTC-5. With 20% fewer cancellations for morning and mid-morning flights, heading out early is often the smartest choice.**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.

With a rewarding loyalty program, United Airlines is a favorite of many travelers departing from SAT to EWR. Plus, as a United Mileage Plus and One Key™ member booking through Expedia, you can earn OneKeyCash™* on eligible flights along with your airline miles.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.