Cheap flights from Cincinnati to Key West from $47

In general, August is the cheapest month to fly from Cincinnati to Key West. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $114. If you are unable to visit Key West during the month of August, then departing from Cincinnati during the month September is also very affordable. Most momondo users find prices during this month for around $196.

On average, the least expensive day to fly to Key West from Cincinnati is on a Monday. momondo users have found tickets for Monday departures for as low as $185. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Wednesday, the most expensive travel day of the week, you can expect to see flight prices from Cincinnati to Key West for around $348.

According to our data, the cheapest time of day to fly to Key West is in the afternoon. momondo users have found flights departing from Cincinnati to Key West in the afternoon for as low as $219. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Key West are more costly at noon, with an average ticket price of $285. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

Fly from Cincinnati Cinci./N. Kentucky to Key West for the best Cincinnati Cinci./N. Kentucky - Key West flight prices

You are more likely to see cheaper flights to Key West from Cincinnati when booking weeks ahead of your departure date. In general, you can expect to find flights to Key West for around $311 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Key West from Cincinnati for as low as $190 on momondo.

There is only 1 cabin class available to choose from on Cincinnati to Key West 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 Cincinnati to Key West flight.

As of October 2026, prices for Cincinnati to Key West flights are approximately 75% more expensive when compared to flights at the same time last year.

Allegiant Air is the most popular carrier operating from Cincinnati Cinci./N. Kentucky to Key West

Allegiant Air, American Airlines and Delta are the top three most popular airlines that fly to Key West from Cincinnati according to our data. Allegiant Air is the first choice among our users, with 42% of people opting to fly with this airline when traveling to Key West. Keep in mind that there are 5 different airlines that fly to Key West on a routine basis, so you have a few additional options to choose from.

Historically, on average around 16% of flights between Cincinnati and Key West have experienced a delay on any given week. The average delay length over the past 12 months has been 132 minutes.

Generally, flights departing in the morning 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, Allegiant Air have had the least number of delays on this route over the last 12 months; with about 16% of their flights experiencing any sort of delay.