Cheap flights from Boston to Miami from C$ 149

If you are unable to visit Miami during the month of September, then departing from Boston during the month October is also very affordable. Most momondo users find prices during this month for around C$ 313.

On average, the least expensive day to fly to Miami from Boston is on a Monday. momondo users have found tickets for Monday departures for as low as C$ 224. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Wednesday as prices are generally higher than usual. According to our data, the average ticket price to Miami on Wednesday is C$ 537.

Our data shows that the cheapest Boston to Miami flights are usually those with departure times in the afternoon. Our users have found flights to Miami in the afternoon for as low as C$ 273. Flights to Miami are more costly in the morning, with an average ticket price of C$ 433. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

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

You are more likely to see cheaper flights to Miami from Boston when booking weeks ahead of your departure date. In general, you can expect to find flights to Miami for around C$ 372 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Miami from Boston for as low as C$ 300 on momondo.

You could potentially save up to 31% on your flight if you consider stops on a Boston to Miami flight.

As of April 2026, prices for Boston to Miami flights are approximately 3% more expensive when compared to flights at the same time last year.

Delta, Southwest, and United Airlines are the most popular carriers operating from Boston Logan Intl to Miami

Spirit Airlines, JetBlue and American Airlines are the top three most popular airlines that fly to Miami from Boston according to our data. Spirit Airlines is the first choice among our users, with 53% of people opting to fly with this airline when travelling to Miami. Keep in mind that there are 4 different airlines that fly to Miami on a routine basis, so you have a few additional options to choose from.

Historically, on average around 16% of flights between Boston and Miami have experienced a delay on any given week. The average delay length over the past 12 months has been 157 minutes.

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

Wednesday is statistically the day of the week that experiences the fewest delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

According to our data, American Airlines has had the least delays on this route over the last 12 months, with about 13% of their flights experiencing any sort of delay.

As of April 2026, there are 19 flights per day flying from Boston to Miami. The most common time of day flights depart is 3:00p.m., with 38% of flights taking off in the afternoon.

The number of flights available between Boston and Miami is 135 per week as of April 2026. The most frequent departure day is Mon, with 20% of weekly flights leaving on this day.