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

Frontier and Allegiant Air are the most popular carriers operating from Philadelphia to Florida Keys

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 58% 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.

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

The number of flights available between Philadelphia and Florida Keys is 171 per week as of May 2026. The most frequent departure day is Fri, with 17% of weekly flights leaving on this day.

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

As of May 2026, 24 flights take off from Philadelphia and land in Florida Keys each day. The most common flight departure time for this route is 10:00AM, with 100% of daily flights taking off at noon.

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 May 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.

4:47 pm - 7:45 pm

PHL

MIA

2h 58mnonstop

8:50 pm - 11:47 pm

MIA

PHL

2h 57mnonstop

$75Frontier

Sun, Sep 20 - Thu, Oct 1

4:47 pm - 7:45 pm

PHL

MIA

2h 58mnonstop

8:50 pm - 11:47 pm

MIA

PHL

2h 57mnonstop

$76Frontier

Thu, Sep 10 - Sun, Sep 13

5:32 pm - 8:33 pm

PHL

MIA

3h 01mnonstop

9:38 pm - 12:31 am

MIA

PHL

2h 53mnonstop

$81Frontier

Sun, Jul 26 - Thu, Aug 20

4:47 pm - 7:45 pm

PHL

MIA

2h 58mnonstop

8:50 pm - 11:47 pm

MIA

PHL

2h 57mnonstop

$84Frontier

Sun, Sep 13 - Sun, Sep 20

5:32 pm - 8:28 pm

PHL

MIA

2h 56mnonstop

9:28 pm - 12:21 am

MIA

PHL

2h 53mnonstop

$94Frontier

Sun, Jun 7 - Thu, Jun 25

5:25 pm - 8:26 pm

PHL

MIA

3h 01mnonstop

9:21 pm - 12:27 am

MIA

PHL

3h 06mnonstop

$108Frontier

Thu, Jul 9 - Sun, Jul 12

5:32 pm - 8:28 pm

PHL

MIA

2h 56mnonstop

3:09 pm - 6:10 pm

MIA

PHL

3h 01mnonstop

$112Frontier

Sun, Jun 7 - Wed, Jun 10

9:34 pm - 12:32 am

PHL

MIA

2h 58mnonstop

8:50 pm - 11:47 pm

MIA

PHL

2h 57mnonstop

$115Frontier

Sun, Oct 25 - Sun, Nov 1

5:36 pm - 9:41 am

PHL

EYW

16h 05m

1 stop

1:14 pm - 3:16 pm

EYW

PHL

26h 02m

1 stop

$176Multiple Airlines

Thu, Aug 6 - Tue, Aug 11

12:58 pm - 12:19 pm

PHL

EYW

23h 21m

1 stop

12:01 pm - 12:38 am

EYW

PHL

12h 37m

1 stop

$197Multiple Airlines

Sun, Sep 27 - Thu, Oct 1

Frontier flights from Philadelphia to Florida Keys

Our best Frontier deals on Philadelphia to Florida Keys flight tickets

Frontier

Sep 20

PHL4:47 pmPhiladelphia

2h 58m

MIA7:45 pmMiami

Oct 1

MIA8:50 pmMiami

2h 57m

PHL11:47 pmPhiladelphia

$75

Frontier

Sep 10

PHL4:47 pmPhiladelphia

2h 58m

MIA7:45 pmMiami

Sep 13

MIA8:50 pmMiami

2h 57m

PHL11:47 pmPhiladelphia

$76

Frontier

Jul 26

PHL5:32 pmPhiladelphia

3h 01m

MIA8:33 pmMiami

Aug 20

MIA9:38 pmMiami

2h 53m

PHL12:31 amPhiladelphia

$81

United Airlines flights from Philadelphia to Florida Keys

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

United Airlines

May 29

PHL6:00 amPhiladelphia

9h 07m

1 stop

EYW3:07 pmKey West

Jun 5

EYW3:55 pmKey West

9h 04m

1 stop

PHL12:59 amPhiladelphia

$610

United Airlines

May 29

PHL6:00 amPhiladelphia

9h 07m

1 stop

EYW3:07 pmKey West

Jun 2

EYW2:26 pmKey West

19h 19m

2 stops

PHL9:45 amPhiladelphia

$680

United Airlines

May 29

PHL6:00 amPhiladelphia

9h 07m

1 stop

EYW3:07 pmKey West

Jun 2

EYW2:26 pmKey West

19h 19m

2 stops

PHL9:45 amPhiladelphia

$701

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PhiladelphiaMiami

PHL - MIA

PHLMIA

Philadelphia

Sun 9/20

4:47 pm-7:45 pm

Nonstop2h 58m

Miami

Thu 10/1

8:50 pm-11:47 pm

Nonstop2h 57m

$75

PhiladelphiaMiami

PHL - MIA

PHLMIA

Philadelphia

Thu 9/10

4:47 pm-7:45 pm

Nonstop2h 58m

Miami

Sun 9/13

8:50 pm-11:47 pm

Nonstop2h 57m

$76

PhiladelphiaMiami

PHL - MIA

PHLMIA

Philadelphia

Sun 7/26

5:32 pm-8:33 pm

Nonstop3h 01m

Miami

Thu 8/20

9:38 pm-12:31 am

Nonstop2h 53m

$81

PhiladelphiaMiami

PHL - MIA

PHLMIA

Philadelphia

Sun 9/13

4:47 pm-7:45 pm

Nonstop2h 58m

Miami

Sun 9/20

8:50 pm-11:47 pm

Nonstop2h 57m

$84

Quickest round-trip

PhiladelphiaMiami

PHL - MIA

PHLMIA

Philadelphia

Sun 6/7

5:32 pm-8:28 pm

Nonstop2h 56m

Miami

Thu 6/25

9:28 pm-12:21 am

Nonstop2h 53m

$94

PhiladelphiaMiami

PHL - MIA

PHLMIA

Philadelphia

Thu 7/9

5:25 pm-8:26 pm

Nonstop3h 01m

Miami

Sun 7/12

9:21 pm-12:27 am

Nonstop3h 06m

$108

PhiladelphiaMiami

PHL - MIA

PHLMIA

Philadelphia

Sun 6/7

5:32 pm-8:28 pm

Nonstop2h 56m

Miami

Wed 6/10

3:09 pm-6:10 pm

Nonstop3h 01m

$112

PhiladelphiaMiami

PHL - MIA

PHLMIA

Philadelphia

Sun 10/25

9:34 pm-12:32 am

Nonstop2h 58m

Miami

Sun 11/1

8:50 pm-11:47 pm

Nonstop2h 57m

$115

PhiladelphiaKey West

PHL - EYW

PHLEYW

Philadelphia

Thu 8/6

5:36 pm-9:41 am

1 stop16h 05m

Key West

Tue 8/11

1:14 pm-3:16 pm

1 stop26h 02m

$176

PhiladelphiaKey West

PHL - EYW

PHLEYW

Philadelphia

Sun 9/27

12:58 pm-12:19 pm

1 stop23h 21m

Key West

Thu 10/1

12:01 pm-12:38 am

1 stop12h 37m

$197

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 November is another great option to travel to Florida Keys, with average flight prices from Philadelphia averaging around $196.

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 Monday when prices can be found for as low as $314. The most expensive day to fly to Florida Keys is Tuesday, with ticket prices averaging around $500.

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 afternoon. momondo users have found flights departing from Philadelphia to Florida Keys in the afternoon for as low as $235. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights at noon are often more expensive with an average ticket price of $527.

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 from Philadelphia 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 $216 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 $177 on momondo.

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

There are 2 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 52m
Direct flights	Mon, Tue, Fri, Sat and Sun
Airports in Florida Keys	3 airports

The fastest flight from Philadelphia to Florida Keys takes 2h 52m

Direct flights go from Philadelphia to Florida Keys on Monday, Tuesday, Friday, Saturday and Sunday. There are no airlines offering direct flights.

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 May 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 18.01% of the total bookings. Other popular models include Airbus A321-100/200 with 12.58%, Airbus A320neo with 11.94%, and Airbus A320-100/200 with 11.28%.

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 6.2	Search Spirit Airlines flights
American Airlines	PriceFrom $423	Free Cancellation	Rating 7.1 11,639 reviews	Search American Airlines flights
Delta	PriceFrom $442	Free Cancellation	Rating 7.9 8,444 reviews	Search Delta 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.