Cheap flights from Boston to Miami from £70

In general, January is the cheapest month to fly from Boston to Miami. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £198. The month of March is another great option to travel to Miami, with average flight prices from Boston averaging around £204.

The cheapest day to depart from Boston to Miami is on a Tuesday when prices can be found for as low as £228. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from Boston to Miami for around £776.

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 £161. In contrast, the most expensive time of day to depart to Miami is at midday when prices are around £551.

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 £249 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Miami from Boston for as low as £199 on momondo.

There are 3 cabin classes available to choose from on Boston to Miami 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 61% on your flight if you consider stops on a Boston to Miami flight.

As of September 2026, prices for Boston to Miami flights are approximately 14% cheaper when compared to flights at the same time last year.

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

American Airlines, JetBlue and Delta are the top three most popular airlines that fly to Miami from Boston according to our data. American Airlines is the first choice among our users, with 39% 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 15% 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 159 minutes.

Generally, flights departing at night tend to experience fewer delays. Flights departing in the early afternoon 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 have had the fewest delays on this route over the last 12 months, with about 12% of their flights experiencing any sort of delay.

The number of flights available between Boston and Miami is 17 per day as of September 2026. The most frequent departure time is 15:00, with 40% of daily flights leaving at midday.

As of September 2026, 120 flights take off from Boston and land in Miami each week. The most common flight departure day for this route is Fri, with 18% of weekly flights taking off on this day.