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

Frontier and Spirit Airlines 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 62% of people opting to fly with this airline when traveling to Florida Keys. Keep in mind that there are 5 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 day?

As of February 2026, 28 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.

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

The number of flights available between Philadelphia and Florida Keys is 200 per week as of February 2026. The most frequent departure day is Wed, with 16% of weekly flights leaving on this day.

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 9 operators available for flights from Philadelphia Airport to Florida Keys as of February 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.

$35 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.

5:44 pm - 8:46 pm

PHL

MIA

3h 02mnonstop

10:27 pm - 1:29 am

MIA

PHL

3h 02mnonstop

$70Frontier

Sat, Apr 11 - Thu, Apr 16

9:00 am - 11:59 am

PHL

MIA

2h 59mnonstop

10:27 pm - 1:29 am

MIA

PHL

3h 02mnonstop

$71Frontier

Tue, Apr 14 - Thu, Apr 16

6:10 pm - 9:17 pm

PHL

MIA

3h 07mnonstop

1:13 pm - 4:10 pm

MIA

PHL

2h 57mnonstop

$72Frontier

Mon, Apr 20 - Wed, Apr 29

6:43 pm - 9:41 pm

PHL

MIA

2h 58mnonstop

10:20 pm - 1:15 am

MIA

PHL

2h 55mnonstop

$73Frontier

Mon, Mar 16 - Wed, Mar 25

12:21 pm - 3:27 pm

PHL

MIA

3h 06mnonstop

8:15 am - 11:11 am

MIA

PHL

2h 56mnonstop

$74Frontier

Sat, Feb 28 - Wed, Mar 4

6:10 pm - 9:17 pm

PHL

MIA

3h 07mnonstop

10:13 am - 1:17 pm

MIA

PHL

3h 04mnonstop

$75Frontier

Sun, May 3 - Thu, May 7

7:41 pm - 10:51 pm

PHL

MIA

3h 10mnonstop

10:27 pm - 1:29 am

MIA

PHL

3h 02mnonstop

$76Frontier

Mon, Apr 13 - Thu, Apr 16

9:39 am - 12:43 pm

PHL

MIA

3h 04mnonstop

1:38 pm - 4:26 pm

MIA

PHL

2h 48mnonstop

$79Spirit Airlines

Sun, Mar 1 - Thu, Mar 5

6:26 pm - 2:45 pm

PHL

EYW

20h 19m

1 stop

12:40 pm - 11:50 pm

EYW

PHL

11h 10m

2 stops

$275Multiple Airlines

Sun, Mar 1 - Wed, Mar 4

5:21 pm - 11:30 am

PHL

EYW

18h 09m

3 stops

12:25 pm - 11:56 pm

EYW

PHL

11h 31m

1 stop

$282Spirit Airlines

Tue, Mar 17 - Thu, Mar 19

Frontier flights from Philadelphia to Florida Keys

Our best Frontier deals on Philadelphia to Florida Keys flight tickets

Frontier

Apr 11

PHL8:11 pmPhiladelphia

2h 55m

MIA11:06 pmMiami

Apr 16

MIA10:13 amMiami

3h 04m

PHL1:17 pmPhiladelphia

$70

Frontier

Apr 14

PHL9:00 amPhiladelphia

2h 59m

MIA11:59 amMiami

Apr 23

MIA10:13 amMiami

3h 04m

PHL1:17 pmPhiladelphia

$71

Frontier

Apr 20

PHL6:10 pmPhiladelphia

3h 07m

MIA9:17 pmMiami

Apr 29

MIA1:13 pmMiami

2h 57m

PHL4:10 pmPhiladelphia

$72

Spirit Airlines flights from Philadelphia to Florida Keys

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

Spirit Airlines

Mar 1

PHL9:39 amPhiladelphia

3h 04m

MIA12:43 pmMiami

Mar 5

MIA1:38 pmMiami

2h 48m

PHL4:26 pmPhiladelphia

$79

Spirit Airlines

Feb 23

PHL9:39 amPhiladelphia

3h 04m

MIA12:43 pmMiami

Feb 26

MIA1:38 pmMiami

2h 48m

PHL4:26 pmPhiladelphia

$87

Spirit Airlines

Feb 22

PHL9:39 amPhiladelphia

3h 04m

MIA12:43 pmMiami

Feb 27

MIA1:38 pmMiami

2h 48m

PHL4:26 pmPhiladelphia

$100

momondo Fare Finder

Use the filters below to find and compare flights from Philadelphia to Florida Keys that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PhiladelphiaMiami

PHL - MIA

PHLMIA

Philadelphia

Sat 4/11

5:44 pm-8:46 pm

Nonstop3h 02m

Miami

Thu 4/16

10:27 pm-1:29 am

Nonstop3h 02m

$70

PhiladelphiaMiami

PHL - MIA

PHLMIA

Philadelphia

Tue 4/14

9:00 am-11:59 am

Nonstop2h 59m

Miami

Thu 4/16

10:27 pm-1:29 am

Nonstop3h 02m

$71

PhiladelphiaMiami

PHL - MIA

PHLMIA

Philadelphia

Mon 4/20

6:10 pm-9:17 pm

Nonstop3h 07m

Miami

Wed 4/29

1:13 pm-4:10 pm

Nonstop2h 57m

$72

PhiladelphiaMiami

PHL - MIA

PHLMIA

Philadelphia

Mon 3/16

6:43 pm-9:41 pm

Nonstop2h 58m

Miami

Wed 3/25

10:20 pm-1:15 am

Nonstop2h 55m

$73

PhiladelphiaMiami

PHL - MIA

PHLMIA

Philadelphia

Sat 2/28

12:21 pm-3:27 pm

Nonstop3h 06m

Miami

Wed 3/4

8:15 am-11:11 am

Nonstop2h 56m

$74

PhiladelphiaMiami

PHL - MIA

PHLMIA

Philadelphia

Sun 5/3

6:10 pm-9:17 pm

Nonstop3h 07m

Miami

Thu 5/7

10:13 am-1:17 pm

Nonstop3h 04m

$75

PhiladelphiaMiami

PHL - MIA

PHLMIA

Philadelphia

Mon 4/13

7:41 pm-10:51 pm

Nonstop3h 10m

Miami

Thu 4/16

10:27 pm-1:29 am

Nonstop3h 02m

$76

PhiladelphiaMiami

PHL - MIA

PHLMIA

Philadelphia

Sun 3/1

9:39 am-12:43 pm

Nonstop3h 04m

Miami

Thu 3/5

1:38 pm-4:26 pm

Nonstop2h 48m

$79

PhiladelphiaKey West

PHL - EYW

PHLEYW

Philadelphia

Sun 3/1

6:26 pm-2:45 pm

1 stop20h 19m

Key West

Wed 3/4

12:40 pm-11:50 pm

2 stops11h 10m

$275

PhiladelphiaKey West

PHL - EYW

PHLEYW

Philadelphia

Tue 3/17

5:21 pm-11:30 am

3 stops18h 09m

Key West

Thu 3/19

12:25 pm-11:56 pm

1 stop11h 31m

$282

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 $187.

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 $325. The most expensive day to fly to Florida Keys is Tuesday, with ticket prices averaging around $525.

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 $227. 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 $485.

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 $221 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 $182 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 52m
Direct flights	Every day
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 every day.

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

Search flight deals

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 9 operators available for flights from Philadelphia Airport to Florida Keys as of February 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 16.77% of the total bookings. Other popular models include Airbus A320-100/200 with 15.41%, Airbus A321-100/200 with 12.50%, and Airbus A320neo with 11.71%.

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 $155	Free Cancellation	Rating 6.3 8,470 reviews	Search Spirit Airlines flights
Delta	PriceFrom $344	Free Cancellation	Rating 7.9 8,208 reviews	Search Delta flights
American Airlines	PriceFrom $423	Free Cancellation	Rating 7.2 11,304 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.

An easier way to manage your Florida Keys trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Popular cities in Florida Keys

Flights to New Yorkfrom $52

Flights to Los Angelesfrom $52

Flights to Miamifrom $49

Flights to Chicagofrom $53

Flights to Orlandofrom $49

Flights to San Franciscofrom $56

Flights to Las Vegasfrom $50

Flights to Washington, D.C.from $25

Flights to Bostonfrom $69

Flights to Atlantafrom $49

Flights to Dallasfrom $49

Flights to Seattlefrom $51

Cheap flights from Philadelphia to Florida Keys from $35

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Philadelphia to Florida Keys departing on 4/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Big names and deals

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Filter for what you want

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Find the cheapest flights from Philadelphia to Florida Keys

Cheap round-trip flights

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Frontier flights from Philadelphia to Florida Keys

Our best Frontier deals on Philadelphia to Florida Keys flight tickets

Spirit Airlines flights from Philadelphia to Florida Keys

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

momondo Fare Finder

Use the filters below to find and compare flights from Philadelphia to Florida Keys that are best for you.

See travel insights to Florida Keys from

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

What is the cheapest month to fly to Florida Keys?

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

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

What is the cheapest Philadelphia to Florida Keys flight route?

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

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

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

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

What airlines fly to Florida Keys?

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

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

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

Direct flights

Airports in Florida Keys

Best airlines flying from Philadelphia to Florida Keys

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

Why use momondo?

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

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

How can momondo help me find flights 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?

An easier way to manage your Florida Keys trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Florida Keys

Popular cities in Florida Keys

Popular flights according to clicks in the last 7 days on momondo

Philadelphia flight routes

According to popular flight searches on momondo this year

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