Cheap flights from Key West to Miami from $104

The cheapest day to depart from Key West to Miami is on a Friday when prices can be found for as low as $386. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Miami on Sunday is $795.

In the evening is the cheapest time of day to fly from Key West to Miami when you can find flight prices for as low as $407. Flying to Miami in the evening is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the afternoon because they tend to be around $574. Of course, these prices can vary depending on the time of year and what airport you fly to.

Fly from Key West to Miami for the best Key West - Miami flight prices

There are 4 cabin classes available to choose from on Key West 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 1% on your flight if you consider stops on a Key West to Miami flight.

As of March 2026, prices for Key West to Miami flights are approximately 4% cheaper when compared to flights at the same time last year.

Delta is the most popular carrier operating from Key West to Miami

American Airlines, United Airlines and Silver Airways are the top three most popular airlines that fly to Miami from Key West according to our data. American Airlines is the first choice among our users, with 34% of people opting to fly with this airline when traveling 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 11% of flights between Key West and Miami have experienced a delay on any given week. The average delay length over the past 12 months has been 96 minutes.

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

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

According to our data, American Airlines have had the least number of delays on this route over the last 12 months; with about 11% of their flights experiencing any sort of delay.

As of March 2026, there are 4 flights per day flying from Key West to Miami. The most common time of day flights depart is 3:00PM, with 57% of flights taking off in the afternoon.

31 flights are operational weekly from Key West to Miami as of March 2026. The most popular departure day for this route is Tue, with 19% of flights per week taking off on this day.