$109 Cheap Delta flights Green Bay (GRB) to Denver (DEN)

You’ll discover cheap return Delta Air Lines flights from $194 from GRB to DEN by sorting your results from “Price (lowest to highest)” on Expedia. Or search for options from $109 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.

Delta Air Lines flights to Denver are usually cheaper in the off-peak months of January and November. Whether you’re in search of a return or one-way ticket, you could score a better deal then.

For cheap Delta Air Lines fares from Austin Straubel Intl. Airport (GRB) to Denver Intl. Airport (DEN), 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 how much you pay. Sunday is typically the most affordable, while Monday is often the most expensive for domestic flights. You can save 6% on average by booking 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.

To see if there’s a direct journey from GRB to DEN with Delta Air Lines or other carriers, select the “Nonstop” filter when looking for flights.

Filter your results by “Morning” and “Early Morning” to find the earliest flights from GRB to DEN. Setting off early means flight 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.

Denver Intl. Airport (DEN) is the main Denver hub for Delta Air Lines flights from Austin Straubel Intl. Airport (GRB).

Heading from GRB to DEN with Delta Air Lines means enjoying a host of benefits, such as a rewarding loyalty program and an excellent in-flight experience. Plus, when booking through Expedia, One Key™ members can collect OneKeyCash™* to redeem on select future travel purchases. That’s in addition to the Delta SkyMiles points you can earn with Delta Air Lines.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Changes are often free within 24 hours of making a booking, but your airline may charge you after that time. For more details about modifying your reservation, check out your “Trips,” select your flight and click on “Manage Booking.” If you’d like the freedom to update your itinerary without being charged, check the “Changes included” and “No cancel fee” filters when planning your next break.