United Airlines: One-way Flights to and from Denver from $49

* Advance purchase varies by market.
* Travel validity varies by market. See below chart for applicable days.
* No minimum stay is required.
* Exceptions apply. See the fare facts for full rules and information.
* Additional checked baggage fees may apply. See U.S./Canada baggage information for details.
* Fares below are subject to availability and may not be valid on all flights/dates.
Fares do not include a $3.70 per flight segment tax. A flight segment is defined as one takeoff and one landing. Fares do not include the September 11th Security Fee of $2.50 per enplanement at a U.S. airport or Passenger Facility Charges of up to $18, which may be collected depending on the itinerary.