$224 Cheap United flights Denver (DEN) to Helena (HLN)

Finding cheap one-way United Airlines flights from DEN to HLN from $224 on Expedia couldn't be simpler — just filter by "Price (lowest to highest)." Or check out our affordable return fares from $209 for your next exciting getaway.**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.

Start searching one to three months before your departure to score cheap fares on United Airlines 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 journeys.*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.

The first flight from DEN to HLN with United Airlines leaves at 11:25AM UTC-7. You'll land at 1:41PM UTC-7. The last United Airlines flight of the day leaves at 7:25PM UTC-7 and arrives at 9:36PM UTC-7. With approximately 20% fewer cancellations for morning departures, jetting out early is usually the smartest option.**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.

Travel from DEN to HLN with United Airlines and you can look forward to a range of perks starting with a rewarding loyalty program. When booking through Expedia as a United Mileage Plus and One Key™ member, you may also earn OneKeyCash™* to redeem on select future travel purchases.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.