$234 Cheap United flights Newark Liberty Intl. Airport (EWR) to Key West (EYW)

Finding cheap one-way United Airlines flights from EWR to EYW from $234 on Expedia is a breeze --- just filter by "Price (lowest to highest)." Alternatively, check out our affordable round-trip fares from $229 for your next exciting vacation.**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.

Start searching one to three months ahead of your travel date to find cheap fares on United Airlines flights from Liberty Intl. Airport (EWR) to Key West Intl. Airport (EYW). 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 right, 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.

The earliest United Airlines flight from EWR to EYW takes off at 9:15AM UTC-5, landing at 12:47PM UTC-5. If you'd like to set off later in the day, the last United Airlines flight leaves EWR at 9:15AM UTC-5 and lands at EYW at 12:47PM UTC-5. Flying earlier is generally a good option as morning and mid-morning flights are least likely to experience 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.

With a rewarding loyalty program, United Airlines is a top choice for many travelers heading from EWR to EYW. Plus, as a United Mileage Plus and One Key™ member booking through Expedia, you could 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.