$214 Cheap United flights Billings (BIL) to Denver (DEN)

Scoring cheap one-way United Airlines flights from BIL to DEN from $214 on Expedia couldn’t be simpler — just filter by “Price (lowest to highest).” Or check out our budget-friendly return fares from $189 for your next exciting adventure.**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 cheapest months to get away to Denver with United Airlines. You could also find fantastic deals on one-way and round-trip tickets in November.

Search for affordable United Airlines flights from Logan Intl. Airport (BIL) to Denver Intl. Airport (DEN) one to three months ahead of your 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. No matter the fare type and journey, the best day to book a domestic flight is generally Sunday and the most expensive day is typically 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.

Book a seat on one of United Airlines’s 28 weekly direct flights from Logan Intl. Airport (BIL) to Denver Intl. Airport (DEN). To view available options, enter your dates, origin and destination and hit search. Then use the “Nonstop” and “Airline” filters.

Leave Logan Intl. Airport (BIL) for Denver Intl. Airport (DEN) on a nonstop United Airlines flight, and you’ll be in the sky for around 1h 43m.

Thursday has the most United Airlines flights from Logan Intl. Airport (BIL) to Denver Intl. Airport (DEN). With 4 daily departures, this is the best day to book something that will fit your plans.

The first flight from BIL to DEN with United Airlines departs at 7:00AM UTC-7. You’ll land at 8:38AM UTC-7. The final United Airlines flight of the day takes off at 5:54PM UTC-7 and arrives at 7:40PM UTC-7. With 20% fewer cancellations for departures before midday, setting off early is usually the best 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.

United Airlines flights from Logan Intl. Airport (BIL) to Denver come in to Denver Intl. Airport (DEN). This is the main gateway here.

A rewarding loyalty program and the opportunity to collect points through United Mileage Plus are the start of the reasons to jet off from BIL to DEN with United Airlines. Plus, by joining Expedia’s free One Key™ program, you can receive OneKeyCash™* in addition to any airline loyalty program earnings. You can put it toward your future trips.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

You’ll likely board a Boeing 737-900 or a Bombardier CRJ when flying United Airlines from Logan Intl. Airport (BIL) to Denver Intl. Airport (DEN). However, keep in mind that a different aircraft may be used depending on operational demands.

Changes are often free within 24 hours of making your booking, but your airline may charge you after that time. For further details about modifying your reservation, check out your “Trips,” select your flight and click on “Manage Booking.” If you want the freedom to adjust your plans without being charged, check the “Changes included” and “No cancel fee” filters when organizing your trip.