Cheap flights from Pennsylvania to Key West from $56

In general, July is the cheapest month to fly from Pennsylvania to Key West. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $427. If you are unable to visit Key West during the month of July, then departing from Pennsylvania during the month August is also very affordable. Most momondo users find prices during this month for around $445.

On average, the least expensive day to fly to Key West from Pennsylvania is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $503. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Pennsylvania to Key West for around $673.

Fly from Pittsburgh to Key West for the best Pennsylvania - Key West flight prices

You are more likely to see cheaper flights to Key West from Pennsylvania when booking weeks ahead of your departure date. In general, you can expect to find flights to Key West for around $581 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Key West from Pennsylvania for as low as $490 on momondo.

There are 3 cabin classes available to choose from on Pennsylvania 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 38% on your flight if you consider stops on a Pennsylvania to Key West flight.

Allegiant Air, Breeze Airways, and Delta are the most popular carriers operating from Pennsylvania to Key West

American Airlines, Allegiant Air and Delta are the top three most popular airlines that fly to Key West from Pennsylvania according to our data. American Airlines is the first choice among our users, with 68% of people opting to fly with this airline when traveling to Key West. Keep in mind that there are 4 different airlines that fly to Key West on a routine basis, so you have a few additional options to choose from.

The number of flights available between Pennsylvania and Key West is 4 per day as of August 2026. The most frequent departure time is 10:00AM, with 93% of daily flights leaving at noon.

As of August 2026, there are 29 flights per week flying from Pennsylvania to Key West. The most common day of the week flights depart is Sat, with 17% of flights taking off on this day.