What airlines fly to Florida Keys?

American Airlines, Allegiant Air and Delta are the top three most popular airlines that fly to Florida Keys from Pennsylvania according to our data. American Airlines is the first choice among our users, with 77% 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.

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

Frontier, Spirit Airlines, and Delta are the most popular carriers operating from Pennsylvania to Florida Keys

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

The number of flights available between Pennsylvania and Florida Keys is 128 per day as of December 2025. The most frequent departure time is 8:00AM, with 100% of daily flights leaving at noon.

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

The number of flights available between Pennsylvania and Florida Keys is 901 per week as of December 2025. The most frequent departure day is Tue, with 22% of weekly flights leaving on this day.

How long is the flight from Pennsylvania to Florida Keys?

On average, it takes 5h 02m to fly from Pennsylvania to Florida Keys if you fly out of Pittsburgh (the most popular airport in Pennsylvania) and into Los Angeles (the most popular airport in Florida Keys). If you’re flying out of Philadelphia and into Los Angeles, then the flight time is around 5h 37m.

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

Prices for flights from Pennsylvania to Florida Keys were last updated today.

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

There are 9 operators available for flights from Pennsylvania to Florida Keys as of December 2025.

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

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Pennsylvania to Florida Keys.

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

The travel and health documents you'll need for your trip to Florida Keys may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Florida Keys. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$39 Cheap Flights from Pennsylvania to Florida Keys in 2025/26

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Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

9:52 am - 12:56 pm

PHL

MIA

3h 04mnonstop

10:39 am - 1:45 pm

MIA

PHL

3h 06mnonstop

$66Multiple Airlines

Sat, Jan 31 - Mon, Feb 2

8:27 pm - 11:20 pm

PHL

MIA

2h 53mnonstop

11:43 am - 2:43 pm

MIA

PHL

3h 00mnonstop

$67Frontier

Fri, Feb 20 - Mon, Feb 23

8:27 pm - 11:20 pm

PHL

MIA

2h 53mnonstop

11:43 am - 2:43 pm

MIA

PHL

3h 00mnonstop

$68Frontier

Fri, Feb 20 - Mon, Feb 23

10:59 am - 2:21 pm

LGA

MIA

3h 22mnonstop

1:01 pm - 11:50 pm

MIA

LGA

10h 49m1 stop

$71Spirit Airlines

Tue, Jan 13 - Wed, Jan 21

9:53 am - 12:57 pm

PHL

MIA

3h 04mnonstop

2:04 pm - 4:52 pm

MIA

PHL

2h 48mnonstop

$72Spirit Airlines

Sat, Feb 21 - Fri, Feb 27

8:39 pm - 11:59 pm

LGA

MIA

3h 20mnonstop

3:50 pm - 6:54 pm

MIA

LGA

3h 04mnonstop

$72Multiple Airlines

Sat, Jan 17 - Sat, Jan 24

5:00 am - 7:58 am

DCA

MIA

2h 58mnonstop

9:56 pm - 12:34 am

MIA

DCA

2h 38mnonstop

$127American Airlines

Sat, Jan 10 - Sat, Jan 17

5:55 am - 8:53 am

DCA

MIA

2h 58mnonstop

5:51 pm - 8:30 pm

MIA

DCA

2h 39mnonstop

$128American Airlines

Tue, Feb 3 - Tue, Feb 10

2:30 pm - 5:28 pm

DCA

MIA

2h 58mnonstop

11:21 am - 2:00 pm

MIA

DCA

2h 39mnonstop

$137Delta

Tue, Jan 20 - Tue, Jan 27

2:35 pm - 5:33 pm

DCA

MIA

2h 58mnonstop

3:45 pm - 11:10 pm

MIA

DCA

7h 25m1 stop

$144Delta

Wed, Jan 7 - Wed, Jan 14

Spirit Airlines flights from Pennsylvania to Florida Keys

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

Spirit Airlines

Jan 7

PHL6:00 amPhiladelphia

6h 46m

1 stop

MIA12:46 pmMiami

Jan 7

MIA8:40 pmMiami

2h 54m

PHL11:34 pmPhiladelphia

$70

Find similar

Spirit Airlines

Jan 13

LGA10:59 amNew York LaGuardia

3h 22m

MIA2:21 pmMiami

Jan 21

MIA1:01 pmMiami

10h 49m

1 stop

LGA11:50 pmNew York LaGuardia

$71

Find similar

Spirit Airlines

Feb 21

PHL9:53 amPhiladelphia

3h 04m

MIA12:57 pmMiami

Feb 25

MIA2:04 pmMiami

2h 48m

PHL4:52 pmPhiladelphia

$72

Find similar

American Airlines flights from Pennsylvania to Florida Keys

Our best American Airlines deals on Pennsylvania to Florida Keys flight tickets

American Airlines

Jan 10

DCA7:59 pmWashington, D.C. Reagan-National

2h 57m

MIA10:56 pmMiami

Jan 16

MIA9:56 pmMiami

2h 38m

DCA12:34 amWashington, D.C. Reagan-National

$127

Find similar

American Airlines

Feb 4

DCA2:54 pmWashington, D.C. Reagan-National

3h 06m

MIA6:00 pmMiami

Feb 11

MIA2:23 pmMiami

2h 36m

DCA4:59 pmWashington, D.C. Reagan-National

$128

Find similar

American Airlines

Feb 11

DCA4:59 pmWashington, D.C. Reagan-National

3h 05m

MIA8:04 pmMiami

Feb 18

MIA6:31 amMiami

2h 38m

DCA9:09 amWashington, D.C. Reagan-National

$142

Find similar

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

PhiladelphiaMiami

PHL - MIA

PHLMIA

Philadelphia

Sat 1/31

9:52 am-12:56 pm

Nonstop3h 04m

Miami

Mon 2/2

10:39 am-1:45 pm

Nonstop3h 06m

$66

PhiladelphiaMiami

PHL - MIA

PHLMIA

Philadelphia

Fri 2/20

8:27 pm-11:20 pm

Nonstop2h 53m

Miami

Mon 2/23

11:43 am-2:43 pm

Nonstop3h 00m

$67

PhiladelphiaMiami

PHL - MIA

PHLMIA

Philadelphia

Fri 2/20

8:27 pm-11:20 pm

Nonstop2h 53m

Miami

Mon 2/23

11:43 am-2:43 pm

Nonstop3h 00m

$68

New YorkMiami

LGA - MIA

LGAMIA

New York LaGuardia

Tue 1/13

10:59 am-2:21 pm

Nonstop3h 22m

Miami

Wed 1/21

1:01 pm-11:50 pm

1 stop10h 49m

$71

PhiladelphiaMiami

PHL - MIA

PHLMIA

Philadelphia

Sat 2/21

9:53 am-12:57 pm

Nonstop3h 04m

Miami

Fri 2/27

2:04 pm-4:52 pm

Nonstop2h 48m

$72

New YorkMiami

LGA - MIA

LGAMIA

New York LaGuardia

Sat 1/17

8:39 pm-11:59 pm

Nonstop3h 20m

Miami

Sat 1/24

3:50 pm-6:54 pm

Nonstop3h 04m

$72

Washington, D.C.Miami

DCA - MIA

DCAMIA

Washington, D.C. Reagan-National

Sat 1/10

5:00 am-7:58 am

Nonstop2h 58m

Miami

Sat 1/17

9:56 pm-12:34 am

Nonstop2h 38m

$127

Washington, D.C.Miami

DCA - MIA

DCAMIA

Washington, D.C. Reagan-National

Tue 2/3

5:55 am-8:53 am

Nonstop2h 58m

Miami

Tue 2/10

5:51 pm-8:30 pm

Nonstop2h 39m

$128

Washington, D.C.Miami

DCA - MIA

DCAMIA

Washington, D.C. Reagan-National

Tue 1/20

2:30 pm-5:28 pm

Nonstop2h 58m

Miami

Tue 1/27

11:21 am-2:00 pm

Nonstop2h 39m

$137

Washington, D.C.Miami

DCA - MIA

DCAMIA

Washington, D.C. Reagan-National

Wed 1/7

2:35 pm-5:33 pm

Nonstop2h 58m

Miami

Wed 1/14

3:45 pm-11:10 pm

1 stop7h 25m

$144

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 Pennsylvania 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 October is another great option to travel to Florida Keys, with average flight prices from Pennsylvania averaging around $191.

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

The cheapest day to depart from Pennsylvania to Florida Keys is on a Friday when prices can be found for as low as $320. The most expensive day to fly to Florida Keys is Tuesday, with ticket prices averaging around $538.

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 Pennsylvania to Florida Keys in the evening for as low as $226. 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 $497.

What is the cheapest Pennsylvania to Florida Keys flight route?

Fly from Pittsburgh to Key West for the best Pennsylvania - 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 Pennsylvania when booking weeks ahead of your departure date. In general, you can expect to find flights to Florida Keys for around $226 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Florida Keys from Pennsylvania for as low as $187 on momondo.

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

There are 3 cabin classes available to choose from on Pennsylvania 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 Pennsylvania to Florida Keys flights?

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

Cheap Pennsylvania to Florida Keys flight deals and tips

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

Fastest flight time	2h 40m
Direct flights	Every day
Airports in Florida Keys	3 airports

The fastest flight from Pennsylvania to Florida Keys takes 2h 40m

Direct flights go from Pennsylvania to Florida Keys every day.

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

Search flight deals

When did momondo last update prices for flights from Pennsylvania to Florida Keys?
Prices for flights from Pennsylvania to Florida Keys were last updated today.
How many operators does momondo search for flights from Pennsylvania to Florida Keys?
There are 9 operators available for flights from Pennsylvania to Florida Keys as of December 2025.
How old do you have to be to fly from Pennsylvania to Florida Keys?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Pennsylvania to Florida Keys.
What documentation or ID do you need to fly to Florida Keys?
The travel and health documents you'll need for your trip to Florida Keys may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Florida Keys. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Pennsylvania to Florida Keys?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Pennsylvania to Florida Keys is Airbus A321neo (15.63% of total bookings). The next most popular plane models are Airbus A320-100/200 (14.81%), Airbus A321-100/200 (11.97%), and Boeing 737-800 (9.39%).

Best airlines flying from Pennsylvania to Florida Keys

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

Airline	Rating	Free Cancellation	Price
Allegiant Air	PriceFrom $92	Free Cancellation	Rating 7.2 701 reviews	Search Allegiant Air flights
Spirit Airlines	PriceFrom $148	Free Cancellation	Rating 6.3 8,196 reviews	Search Spirit Airlines flights
United Airlines	PriceFrom $207	Free Cancellation	Rating 7.4 9,105 reviews	Search United Airlines flights
Delta	PriceFrom $229	Free Cancellation	Rating 7.9 8,014 reviews	Search Delta flights
American Airlines	PriceFrom $238	Free Cancellation	Rating 7.2 11,054 reviews	Search American Airlines flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Pennsylvania to Florida Keys. momondo saves you time and could save you money on your trip.

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

Flights from Pennsylvania to Florida Keys with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Florida Keys from Pennsylvania.

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

Price alerts on flights to Florida Keys from Pennsylvania are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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 $50

Flights to Los Angelesfrom $49

Flights to Miamifrom $50

Flights to Chicagofrom $51

Flights to Orlandofrom $50

Flights to San Franciscofrom $53

Flights to Las Vegasfrom $38

Flights to Washington, D.C.from $58

Flights to Bostonfrom $50

Flights to Atlantafrom $47

Flights to Dallasfrom $51

Flights to Seattlefrom $55

Cheap flights from Pennsylvania to Florida Keys from $39

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Pennsylvania to Florida Keys departing on 2/19. 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

Filter for what you want

Filter for what you want

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Find the cheapest flights from Pennsylvania to Florida Keys

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Spirit Airlines flights from Pennsylvania to Florida Keys

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

American Airlines flights from Pennsylvania to Florida Keys

Our best American Airlines deals on Pennsylvania to Florida Keys flight tickets

momondo Fare Finder

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

See travel insights to Florida Keys from

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

What is the cheapest month to fly to Florida Keys?

The month of October is another great option to travel to Florida Keys, with average flight prices from Pennsylvania averaging around $191.

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

The cheapest day to depart from Pennsylvania to Florida Keys is on a Friday when prices can be found for as low as $320. The most expensive day to fly to Florida Keys is Tuesday, with ticket prices averaging around $538.

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

What is the cheapest Pennsylvania to Florida Keys flight route?

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

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

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

There are 3 cabin classes available to choose from on Pennsylvania 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 Pennsylvania to Florida Keys flights?

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

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

Frontier, Spirit Airlines, and Delta are the most popular carriers operating from Pennsylvania to Florida Keys

What airlines fly to Florida Keys?

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

The number of flights available between Pennsylvania and Florida Keys is 128 per day as of December 2025. The most frequent departure time is 8:00AM, with 100% of daily flights leaving at noon.

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

The number of flights available between Pennsylvania and Florida Keys is 901 per week as of December 2025. The most frequent departure day is Tue, with 22% of weekly flights leaving on this day.

How long is the flight from Pennsylvania to Florida Keys?

Cheap Pennsylvania to Florida Keys flight deals and tips

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

Fastest flight time

Direct flights

Airports in Florida Keys

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

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

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

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

What is the most popular plane model from Pennsylvania to Florida Keys?

Best airlines flying from Pennsylvania to Florida Keys

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

Why use momondo?

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

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

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

I’m not ready to book a flight from Pennsylvania 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