Cheap flights from Denver to Boston from $121

In general, January is the cheapest month to fly from Denver to Boston. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $277. If you aren’t able to travel during the month of January, then book flights to Boston from Denver during September instead. Flights to Boston in September, while not as cheap as those in January, still average around $307.

The cheapest day to depart from Denver to Boston is on a Wednesday when prices can be found for as low as $318. Be sure to avoid booking your departure on a Monday as prices are generally higher than usual. According to our data, the average ticket price to Boston on Monday is $423.

According to our data, the cheapest time of day to fly to Boston is in the evening. momondo users have found flights departing from Denver to Boston in the evening for as low as $291. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In the morning is when there is more demand to fly to Boston, so prices are often more expensive at around $397 per ticket.

Fly from Denver Intl to Boston Logan Intl for the best Denver Intl - Boston Logan Intl flight prices

You are more likely to see cheaper flights to Boston from Denver when booking weeks ahead of your departure date. In general, you can expect to find flights to Boston for around $336 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Boston from Denver for as low as $283 on momondo.

There are 4 cabin classes available to choose from on Denver to Boston flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

You could potentially save up to 23% on your flight if you consider stops on a Denver to Boston flight.

As of May 2026, prices for Denver to Boston flights are approximately 22% more expensive when compared to flights at the same time last year.

United Airlines and JetBlue are the most popular carriers operating from Denver Intl to Boston Logan Intl

United Airlines, JetBlue and Southwest are the top three most popular airlines that fly to Boston from Denver according to our data. United Airlines is the first choice among our users, with 44% of people opting to fly with this airline when traveling to Boston. Keep in mind that there are 7 different airlines that fly to Boston on a routine basis, so you have a few additional options to choose from.

Historically, on average around 24% of flights between Denver and Boston have experienced a delay on any given week. The average delay length over the past 12 months has been 161 minutes.

Generally, flights departing at night tend to experience fewer delays. Flights in the evening have, in the past, seen delays more frequently in comparison.

Saturday is statistically the day of the week which experiences the fewest number of delays on this flight route. Thursday has historically seen more delays on average compared to the rest of the week.

According to our data, Delta have had the least number of delays on this route over the last 12 months; with about 18% of their flights experiencing any sort of delay.

Dallas (DFW) was the most common stop: 33% of momondo users choosing 1-stop flights on this route connected there.

Flights via Philadelphia (PHL) offer the lowest average round-trip price of $209.

Flights connecting via Chicago (ORD) have the shortest average one-way travel time: 5h 50m.

Chicago (ORD) has the shortest average layover time for this route: 1h 26m.

As of May 2026, there are 13 flights per day flying from Denver to Boston. The most common time of day flights depart is 11:00AM, with 44% of flights taking off at noon.

As of May 2026, 96 flights take off from Denver and land in Boston each week. The most common flight departure day for this route is Tue, with 18% of weekly flights taking off on this day.