What is the cheapest airline that flies from Philadelphia to Florida Keys?

Southwest, United Airlines, and American Airlines are the most popular carriers operating from Philadelphia to Florida Keys

How many flights depart from Philadelphia to Florida Keys on average per day?

As of April 2026, 18 flights take off from Philadelphia and land in Florida Keys each day. The most common flight departure time for this route is 8:00AM, with 100% of daily flights taking off at noon.

How many flights depart from Philadelphia to Florida Keys on average per week?

The number of flights available between Philadelphia and Florida Keys is 132 per week as of April 2026. The most frequent departure day is Fri, with 27% of weekly flights leaving on this day.

What airlines fly to Florida Keys?

American Airlines, United Airlines and Delta are the top three most popular airlines that fly to Florida Keys from Philadelphia according to our data. American Airlines is the first choice among our users, with 59% of people opting to fly with this airline when traveling to Florida Keys. Keep in mind that there are 4 different airlines that fly to Florida Keys on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Philadelphia Airport to Florida Keys?

Prices for flights from Philadelphia Airport to Florida Keys are updated daily.

How many operators does momondo search for flights from Philadelphia Airport to Florida Keys?

There are 8 operators available for flights from Philadelphia Airport to Florida Keys as of April 2026.

How old do you have to be to fly from Philadelphia Airport to Florida Keys?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Philadelphia Airport to Florida Keys.

What documentation or ID do you need to fly to Florida Keys?

The necessary travel and health documents for your Florida Keys trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$43 Cheap Flights from Philadelphia to Florida Keys in 2026

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Find the cheapest flights from Philadelphia to Florida Keys

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:50 am - 9:53 am

PHL

MIA

3h 03mnonstop

8:12 am - 10:54 am

MIA

PHL

2h 42mnonstop

$85Multiple Airlines

週三, 4月 22 - 週五, 5月 1

9:53 am - 12:47 pm

PHL

MIA

2h 54mnonstop

8:12 am - 10:54 am

MIA

PHL

2h 42mnonstop

$86Spirit Airlines

週二, 4月 14 - 週五, 4月 17

11:59 am - 2:49 pm

PHL

MIA

2h 50mnonstop

10:58 am - 2:02 pm

MIA

PHL

3h 04mnonstop

$87Multiple Airlines

週五, 4月 24 - 週三, 4月 29

11:59 am - 2:49 pm

PHL

MIA

2h 50mnonstop

3:54 pm - 9:57 pm

MIA

PHL

6h 03m

1 stop

$88Spirit Airlines

週一, 4月 20 - 週四, 4月 23

5:32 pm - 8:28 pm

PHL

MIA

2h 56mnonstop

9:38 pm - 12:45 am

MIA

PHL

3h 07mnonstop

$89Frontier

週日, 5月 10 - 週六, 5月 16

5:45 am - 8:27 am

PHL

MIA

2h 42mnonstop

8:53 pm - 11:45 pm

MIA

PHL

2h 52mnonstop

$90Spirit Airlines

週六, 5月 23 - 週三, 5月 27

5:30 am - 8:31 am

PHL

MIA

3h 01mnonstop

8:12 am - 10:54 am

MIA

PHL

2h 42mnonstop

$91Multiple Airlines

週二, 4月 14 - 週一, 4月 20

5:51 pm - 8:38 pm

PHL

MIA

2h 47mnonstop

6:43 pm - 9:33 pm

MIA

PHL

2h 50mnonstop

$92Spirit Airlines

週六, 5月 2 - 週六, 5月 9

6:05 am - 9:08 am

PHL

MIA

3h 03mnonstop

8:12 am - 10:54 am

MIA

PHL

2h 42mnonstop

$93Multiple Airlines

週三, 4月 15 - 週一, 4月 20

4:47 pm - 7:42 pm

PHL

MIA

2h 55mnonstop

8:53 pm - 11:45 pm

MIA

PHL

2h 52mnonstop

$94Multiple Airlines

週六, 5月 9 - 週日, 5月 10

Spirit Airlines flights from Philadelphia to Florida Keys

Our best Spirit Airlines deals on Philadelphia to Florida Keys flight tickets

Spirit Airlines

Apr 14

PHL9:53 amPhiladelphia

2h 54m

MIA12:47 pmMiami

Apr 17

MIA8:12 amMiami

2h 42m

PHL10:54 amPhiladelphia

$86

Spirit Airlines

Apr 20

PHL11:59 amPhiladelphia

2h 50m

MIA2:49 pmMiami

Apr 23

MIA3:54 pmMiami

6h 03m

1 stop

PHL9:57 pmPhiladelphia

$88

Spirit Airlines

Apr 18

PHL5:51 pmPhiladelphia

2h 47m

MIA8:38 pmMiami

Apr 20

MIA8:12 amMiami

2h 42m

PHL10:54 amPhiladelphia

$90

Frontier flights from Philadelphia to Florida Keys

Our best Frontier deals on Philadelphia to Florida Keys flight tickets

Frontier

Apr 7

PHL2:09 pmPhiladelphia

3h 15m

MIA5:24 pmMiami

Apr 10

MIA5:05 amMiami

3h 05m

PHL8:10 amPhiladelphia

$87

Frontier

Apr 8

PHL2:09 pmPhiladelphia

3h 15m

MIA5:24 pmMiami

Apr 15

MIA10:08 amMiami

3h 04m

PHL1:12 pmPhiladelphia

$88

Frontier

May 10

PHL5:32 pmPhiladelphia

2h 56m

MIA8:28 pmMiami

May 16

MIA9:38 pmMiami

3h 07m

PHL12:45 amPhiladelphia

$89

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PhiladelphiaMiami

PHL - MIA

PHLMIA

Philadelphia

週三 4/22

6:50 am-9:53 am

Nonstop3h 03m

Miami

週五 5/1

8:12 am-10:54 am

Nonstop2h 42m

$85

PhiladelphiaMiami

PHL - MIA

PHLMIA

Philadelphia

週二 4/14

9:53 am-12:47 pm

Nonstop2h 54m

Miami

週五 4/17

8:12 am-10:54 am

Nonstop2h 42m

$86

PhiladelphiaMiami

PHL - MIA

PHLMIA

Philadelphia

週五 4/24

11:59 am-2:49 pm

Nonstop2h 50m

Miami

週三 4/29

10:58 am-2:02 pm

Nonstop3h 04m

$87

PhiladelphiaMiami

PHL - MIA

PHLMIA

Philadelphia

週一 4/20

11:59 am-2:49 pm

Nonstop2h 50m

Miami

週四 4/23

3:54 pm-9:57 pm

1 stop6h 03m

$88

PhiladelphiaMiami

PHL - MIA

PHLMIA

Philadelphia

週日 5/10

5:32 pm-8:28 pm

Nonstop2h 56m

Miami

週六 5/16

9:38 pm-12:45 am

Nonstop3h 07m

$89

Quickest round-trip

PhiladelphiaMiami

PHL - MIA

PHLMIA

Philadelphia

週六 5/23

5:45 am-8:27 am

Nonstop2h 42m

Miami

週三 5/27

8:53 pm-11:45 pm

Nonstop2h 52m

$90

PhiladelphiaMiami

PHL - MIA

PHLMIA

Philadelphia

週二 4/14

5:30 am-8:31 am

Nonstop3h 01m

Miami

週一 4/20

8:12 am-10:54 am

Nonstop2h 42m

$91

PhiladelphiaMiami

PHL - MIA

PHLMIA

Philadelphia

週六 5/2

5:51 pm-8:38 pm

Nonstop2h 47m

Miami

週六 5/9

6:43 pm-9:33 pm

Nonstop2h 50m

$92

PhiladelphiaMiami

PHL - MIA

PHLMIA

Philadelphia

週三 4/15

6:05 am-9:08 am

Nonstop3h 03m

Miami

週一 4/20

8:12 am-10:54 am

Nonstop2h 42m

$93

PhiladelphiaMiami

PHL - MIA

PHLMIA

Philadelphia

週六 5/9

4:47 pm-7:42 pm

Nonstop2h 55m

Miami

週日 5/10

8:53 pm-11:45 pm

Nonstop2h 52m

$94

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Philadelphia to Florida Keys

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Florida Keys?

The month of January is another great option to travel to Florida Keys, with average flight prices from Philadelphia averaging around $186.

What is the cheapest day to depart on your flight to Florida Keys?

The cheapest day to depart from Philadelphia to Florida Keys is on a Friday when prices can be found for as low as $334. The most expensive day to fly to Florida Keys is Tuesday, with ticket prices averaging around $497.

What is the cheapest time of day to depart on your flight to Florida Keys?

According to our data, the cheapest time of day to fly to Florida Keys is in the evening. momondo users have found flights departing from Philadelphia to Florida Keys in the evening for as low as $241. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the morning are often more expensive with an average ticket price of $476.

What is the cheapest Philadelphia to Florida Keys flight route?

Fly from Philadelphia to Key West for the best Philadelphia - Florida Keys flight prices

How far in advance should I book a flight to Florida Keys?

You are more likely to see cheaper flights to Florida Keys from Philadelphia when booking weeks ahead of your departure date. In general, you can expect to find flights to Florida Keys for around $219 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Florida Keys from Philadelphia for as low as $173 on momondo.

What cabin class options are available on Philadelphia to Florida Keys flights?

There are 3 cabin classes available to choose from on Philadelphia to Florida Keys flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Philadelphia to Florida Keys flights?

No. A direct flight is the cheapest option for a flight between Philadelphia to Florida Keys.

Cheap Philadelphia to Florida Keys flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Philadelphia to Florida Keys

Fastest flight time	2h 42m
Direct flights	Every day
Airports in Florida Keys	3 airports

The fastest flight from Philadelphia to Florida Keys takes 2h 42m

Direct flights go from Philadelphia to Florida Keys every day.

There are 3 airports in Florida Keys. From Philadelphia there are direct flights to Miami (MIA).

Search flight deals

Frequently asked questions about flying from Philadelphia to Florida Keys

When did momondo last update prices for flights from Philadelphia Airport to Florida Keys?
Prices for flights from Philadelphia Airport to Florida Keys are updated daily.
How many operators does momondo search for flights from Philadelphia Airport to Florida Keys?
There are 8 operators available for flights from Philadelphia Airport to Florida Keys as of April 2026.
How old do you have to be to fly from Philadelphia Airport to Florida Keys?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Philadelphia Airport to Florida Keys.
What documentation or ID do you need to fly to Florida Keys?
The necessary travel and health documents for your Florida Keys trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Philadelphia to Florida Keys?
Based on momondo bookings for flights between Philadelphia and Florida Keys, the leading plane model is Airbus A321neo, making up 17.82% of the total bookings. Other popular models include Airbus A320-100/200 with 12.83%, Airbus A321-100/200 with 12.19%, and Airbus A320neo with 11.74%.

Best airlines flying from Philadelphia to Florida Keys

Compare and see reviews for airlines that fly from Philadelphia to Florida Keys with momondo

Airline	Rating	Free Cancellation	Price
Spirit Airlines	PriceFrom $157	Free Cancellation	Rating 6.3 8,583 reviews	Search Spirit Airlines flights
Delta	PriceFrom $344	Free Cancellation	Rating 7.9 8,382 reviews	Search Delta flights
American Airlines	PriceFrom $423	Free Cancellation	Rating 7.1 11,556 reviews	Search American Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Philadelphia to Florida Keys?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Philadelphia to Florida Keys for you.

Can I find flights from Philadelphia to Florida Keys with flexible booking policies on momondo?

Yes. All flights to Florida Keys from Philadelphia on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Philadelphia to Florida Keys?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Philadelphia to Florida Keys.

I’m not ready to book a flight from Philadelphia to Florida Keys right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Florida Keys from Philadelphia. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.