$154 Cheap Delta flights Denver (DEN) to Helena (HLN)

Grab affordable return Delta Air Lines flights from $209 from DEN to HLN by filtering your results from “Price (lowest to highest)” on Expedia. Or look for bargains from $154 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 Helena are often cheaper in the low-season months of December and January. Whether you’re searching for a one-way or round-trip ticket, you could land a better deal then.

Begin your search one to three months ahead of your travel date to score cheap fares on Delta Air Lines flights from Denver Intl. Airport (DEN) to Helena Regional Airport (HLN). 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 spot on, and you can enjoy significant savings on domestic trips.*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.

Use the “Nonstop” filter when browsing for direct Delta Air Lines flights from DEN to HLN. It’s also a good way to compare other airlines servicing the same nonstop route.

To find the earliest departure from DEN to HLN with Delta Air Lines, sort your results by “Early Morning” and “Morning.” Choosing an early flight generally means you’ll experience fewer 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.

Delta Air Lines flights from Denver Intl. Airport (DEN) to Helena come in to Helena Regional Airport (HLN). This is the main entry point to this destination.

Delta Air Lines makes flying from DEN to HLN more enjoyable with a rewarding loyalty program and an excellent in-flight experience. You could even start earning points with Delta SkyMiles. Be sure to sign up to Expedia’s free One Key™ rewards program to earn OneKeyCash™*, which can be redeemed on future bookings.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

In most cases, you can cancel or modify your flight, although additional charges may apply if your booking was made more than 24 hours ago. Need flexible options? Use our “Changes included” and “No cancel fee” filters to find flights that won’t charge you extra if you need to adjust your plans. To make changes, visit “Trips,” select your flight and click on “Manage Booking” for more information.