BOS to DEN: Find the Best Deals on Flights from Boston to Denver

Cheapest flight found

$144

Economy
May 2026FrontierBOSDEN

Last updated Mar 13, 2026

Prices by Month

Price History

Tracking the May 7, 2026 departure — the cheapest date we found.

Price Behavior: BOSDEN

Based on 6 months of fare data collected by Trip Manta.

Lowest Fare

$144

Highest Fare

$199

Median Fare

$167

Price Spread

$55

Price Volatilitymoderate

Prices fluctuate moderately — tracking can help you catch dips.

Cheapest month to fly: May 2026 (from $144)

Most expensive month: August 2026 (from $199)

Biggest price drop caught: $108 between consecutive checks

Most frequent cheapest airline: Southwest

What This Means for You

Flights from Boston to Denver range from $144 to $199, a $55 spread across the months we track. If your dates are flexible, May 2026 tends to have the lowest fares. Prices move enough that tracking can save you money — drops often last only a few hours before the algorithm adjusts back up. We have caught drops as large as $108 between hourly checks on this route.

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From

Boston (BOS)

To

Denver (DEN)

Airport Information

Boston (BOS)

Boston Logan International Airport (BOS) serves as the primary gateway for New England and is conveniently located just minutes from the heart of downtown Boston. As a major hub for JetBlue and a significant focus city for Delta Air Lines, it offers a wide variety of high-end amenities including local favorite dining spots like Legal Sea Foods and Stephanie’s. The airport features four terminals connected by walkways and frequent shuttle buses, providing efficient security transitions and modern lounges for travelers heading west.

Denver (DEN)

Denver International Airport (DEN) is world-famous for its iconic white peaked roof, which was designed to mimic the snow-capped peaks of the Rocky Mountains visible in the distance. It is one of the largest airports in the world by total land area and serves as a major operating hub for United Airlines, Frontier, and Southwest Airlines. Travelers can enjoy a vast array of public art installations, an outdoor plaza between the terminal and the Westin hotel, and a wide selection of local Colorado craft breweries throughout the concourses.

Frequently Asked Questions

How long is the flight from BOS to DEN?

A direct flight typically takes between 4 hours and 30 minutes to 5 hours, depending on seasonal wind patterns and air traffic control.

Which airlines offer non-stop flights on this route?

United Airlines, JetBlue, Delta, and Southwest frequently operate daily non-stop services between Boston Logan and Denver International.

What is the time difference between Boston and Denver?

Denver is in the Mountain Time Zone, which is two hours behind Boston’s Eastern Time Zone.

Is there a train from the Denver airport to the city?

Yes, the RTD A-Line provides a convenient 37-minute ride from the airport directly to Denver Union Station in the heart of downtown.

When should I arrive at Logan Airport for my flight?

For domestic flights like BOS to DEN, it is generally recommended to arrive at least two hours before your scheduled departure to allow time for bag drops and security clearance.

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