$129 Cheap Delta flights Allentown (ABE) to Denver (DEN)

You can discover affordable return Delta Air Lines flights from $222 from ABE to DEN by filtering your results from “Price (lowest to highest)” on Expedia. Or look for bargains from $129 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.

January is one of the least expensive months to get away to Denver with Delta Air Lines. You could also find great prices on one-way and round-trip fares in November.

Begin your search one to three months ahead of your departure date to score cheap fares on Delta Air Lines flights from Lehigh Valley Intl. Airport (ABE) to Denver Intl. Airport (DEN). 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 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 the 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.

Fill in your dates, press search and select the “Nonstop” filter on Expedia to browse any direct flights from ABE to DEN with Delta Air Lines or other carriers.

Search Delta Air Lines’s earliest flights from ABE to DEN by selecting our “Morning” and “Early Morning” filters. Not only will you arrive sooner, early departures also have a 20% less chance of being canceled.**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.

Take a Delta Air Lines flight from Lehigh Valley Intl. Airport (ABE) to Denver, and you’ll likely arrive at Denver Intl. Airport (DEN). This is the airline’s main hub here.

Delta Air Lines makes flying from ABE to DEN more comfortable with an excellent in-flight experience and a rewarding loyalty program. You even have the chance to collect points with Delta SkyMiles. Remember to sign up to Expedia’s free One Key™ rewards program to earn OneKeyCash™*, which can be redeemed on future travel.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Changes are generally free within 24 hours of making a booking, but your airline may charge a fee after that time. For further details about modifying your flights, check out your “Trips,” select your flight and click on “Manage Booking.” If you’d like the freedom to make changes without additional costs, apply the “No cancel fee” or “Changes included” filter when organizing your trip.