Cheap flights from New York LaGuardia Airport to Key West from $84

In general, May is the cheapest month to fly from New York LaGuardia Airport to Key West. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $397. If you are unable to visit Key West during the month of May, then departing from New York LaGuardia Airport during the month July is also very affordable. Most momondo users find prices during this month for around $428.

On average, the least expensive day to fly to Key West from New York LaGuardia Airport is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $431. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from New York LaGuardia Airport to Key West for around $573.

According to our data, the cheapest time of day to fly to Key West is in the morning. momondo users have found flights departing from New York LaGuardia Airport to Key West in the morning for as low as $483. 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 $522. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

Fly from New York LaGuardia to Key West for the best New York LaGuardia - Key West flight prices

You are more likely to see cheaper flights to Key West from New York LaGuardia Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Key West for around $472 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Key West from New York LaGuardia Airport for as low as $382 on momondo.

There are 4 cabin classes available to choose from on New York LaGuardia to Key West flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Historically, on average around 15% of flights between New York and Key West have experienced a delay on any given week. The average delay length over the past 12 months has been 157 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.

Tuesday is statistically the day of the week which experiences the fewest number of 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 least number of delays on this route over the last 12 months; with about 14% of their flights experiencing any sort of delay.

2 flights are operational daily from New York LaGuardia Airport to Key West as of March 2026. The most popular departure time for this route is 9:00AM, with 100% of flights per day taking off at noon.

As of March 2026, 15 flights take off from New York LaGuardia Airport and land in Key West each week. The most common flight departure day for this route is Mon, with 20% of weekly flights taking off on this day.