$125 Find Cheap Frontier Flights from Boston to Denver

When to Book Flights with Frontier from Boston to Denver

• Is Frontier the cheapest airline to fly with from Boston to Denver?

  Yes, based on our data, Frontier is the cheapest airline to fly the route with an average price of $175 return. The next cheapest options are Breeze Airways and Sun Country Air, with return flights costing on average $185 and $269 respectively.

• What is the cheapest Frontier flight from Boston to Denver?

  In the last 3 days, the lowest price for a flight with Frontier from Boston to Denver was $144 for a return flight and $108 for a one-way flight.

• Does Frontier fly direct to Denver from Boston?

  No, Frontier does not fly the route directly.

• What’s the cheapest day of the week to fly from Boston to Denver with Frontier?

  On average, the cheapest day of the week to fly from Boston to Denver with Frontier is Monday, when prices are around $50. The most expensive day is generally Thursday, where the average price is around $79.

• What’s the cheapest month to fly from Boston to Denver with Frontier?

  The cheapest month for Frontier flights to Denver from Boston is generally January, where plane tickets cost $62 on average. If possible, try to avoid the most expensive months of February and December, where tickets cost $159 and $188 respectively.