$114 Find Cheap Southwest Flights from Boston to Denver

When to Book Flights with Southwest from Boston to Denver

• How far in advance should I book tickets for a flight with Southwest from Boston to Denver?

  Generally, when trying to get a below average price for your ticket, try to book around 9 days before departure. For the cheapest possible price, our data suggests booking 77 days before departure.

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

  With an average price of $318 return, Southwest is not the cheapest airline to fly from Boston to Denver with. Instead, for the lowest price, our data suggests flying with Frontier, where a return flight costs $195 on average.

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

  In the last 3 days, the lowest price for a flight with Southwest from Boston to Denver was $175 for a return flight and $115 for a one-way flight.

• Does Southwest fly direct to Denver from Boston?

  Yes, Southwest does offer direct flights for the route, with around 18 flights per week.

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

  On average, the cheapest day of the week to fly from Boston to Denver with Southwest is Tuesday, when prices are around $89. The most expensive day is generally Saturday, where the average price is around $114.

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

  The cheapest month for Southwest flights to Denver from Boston is generally March, where plane tickets cost $148 on average. If possible, try to avoid the most expensive months of April and December, where tickets cost $239 and $287 respectively.