Cheap Spirit Airlines flights Denver (DEN) to Newark Liberty Intl. Airport (EWR)

Grab cheap return Spirit Airlines flights from DEN to EWR by filtering your results from "Price (lowest to highest)" on Expedia. Or look for options 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.

To find cheap Spirit Airlines fares from Denver Intl. Airport (DEN) to Liberty Intl. Airport (EWR), 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 affect the cost. Sunday is generally the cheapest, while Monday is often the most expensive for domestic flights. You can save 6% on average by booking your journey 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.

Filter your results by "Early Morning" and "Morning" to see the earliest flights from DEN to EWR. Taking off early means you're less 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.

Depart from DEN to EWR with Spirit Airlines and you can look forward to a range of benefits including a rewarding loyalty program. When you book through Expedia as a Free Spirit 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.