$135 Cheap JetBlue Airways flights Denver (DEN) to Key West (EYW)

Make use of the "Price (lowest to highest)" filter on Expedia to look for cheap JetBlue Airways return flights from $249 from DEN to EYW. Affordable one-way fares from $135 are also on offer.**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.

Search for affordable JetBlue Airways flights from Denver Intl. Airport (DEN) to Key West Intl. Airport (EYW) one to three months before your day of departure. Travelers who book domestic flights 34 to 86 days in advance can save 25% compared to those who book just 6 to 12 days ahead. Regardless of fare type and journey, the ideal day to book a domestic flight is usually Sunday and the most expensive tends to be Monday. Passengers who book on a Sunday can save 6% on average compared to those who book on a Monday.**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.

To find the earliest departure from DEN to EYW with JetBlue Airways, filter your search by "Morning" and "Early Morning." Choosing an early flight generally means cancellations are less likely.**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.