What are the cheapest airlines to fly from Philadelphia to Port St. Lucie one-way?

$38 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Allegiant Air and American Airlines, with prices starting from $39 and $55, respectively.

Weekly flight availability from Philadelphia to Port St. Lucie

The most flights from PHL to LU5 are scheduled on a Sunday (27 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (11 on average).

In terms of precipitation, rainfall in Port St. Lucie ranges from 1.8 - 8.3 inches per month. September is typically the wettest month, when rainfall can reach 8.3 in. February is typically the driest time to visit Port St. Lucie when rainfall is around 1.8 in.

If weather is an important factor for your trip to Port St. Lucie, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 66.2 F).

What are the cheapest flights from Philadelphia to Port St. Lucie?

Looking for the cheapest flight from Philadelphia to Port St. Lucie? While on average our users pay $569, our data indicates the cheapest price to be $93. The most popular route (Philadelphia - Fort Lauderdale), is priced around $111.

What are the most reliable airlines from Philadelphia to Port St. Lucie?

No one likes to see their flight delayed. When booking a flight from Philadelphia to Port St. Lucie consider choosing Iberia (83%), Alaska Airlines (83%) or American Airlines (81%) as they are the most reliable in getting you off to your destination on time.

What are the most popular airlines that fly from Philadelphia to Port St. Lucie?

The most popular airlines flying from Philadelphia to Port St. Lucie are Frontier, American Airlines and JetBlue. Something to consider prior to booking your flight.

What airport do you fly from for flights from Philadelphia to Port St. Lucie?

For a flight from Philadelphia to Port St. Lucie, you will be flying from Philadelphia. Philadelphia (PHL) is just 7.0 mi from the center of the city. Philadelphia is the only Philadelphia airport and it handles 15 outbound flights to Port St. Lucie per day. 7 airlines have flights to Port St. Lucie from Philadelphia on a regular basis.

Can I find deals for flights from Philadelphia to Port St. Lucie that include hotel bookings?

Yes. In addition to deals on Philadelphia to Port St. Lucie flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Philadelphia to Port St. Lucie?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Philadelphia to Port St. Lucie.

Can I find deals for business class flights from Philadelphia to Port St. Lucie?

Yes. Cheapflights offers flight deals from Philadelphia to Port St. Lucie by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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Cheapflights Tip: The best prices from Philadelphia to Port St. Lucie are usually found in January or February, booked 20 days in advance, depart on a Sunday or Tuesday and return on a Thursday

Find flight deals from Philadelphia to Port St. Lucie

Most accurate provider	FlightHub 3 stars
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Popular in	October
Cheapest in	January
Average price	$294

Provider with most accurate pricing for Philadelphia-Fort Lauderdale flight deals.

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Highest demand for flights based on searches. 13% potential increase in price ($36 potential increase over avg. RT price).

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Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).

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Average for round-trip flights in October 2026

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Everything you need to know about your flight from Philadelphia to Port St. Lucie

Prices

Airlines

What is the cheapest time of day to fly from PHL to LU5?

One of the essential ways to save on airfare from Philadelphia to Port St. Lucie is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the afternoon could potentially save you up to 26% on airfare.

What is the cheapest day to fly from Philadelphia to Port St. Lucie?

Travelers seeking maximum savings on their Philadelphia to Port St. Lucie flight should consider departing on Sunday at noon when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Port St. Lucie

Get a feel of what it's like to fly with Delta,Allegiant Air, andJetBlue from Philadelphia to Port St. Lucie by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

7.8

Good

8,681 reviews

Reviews

1 / 20

10.0

Excellent

Salvador,Aug 2026

PHL - DTW

No food and entertainment. Also de aircraft is old and noisy.

Delta

7.8

Good

8,681 reviews

Delta

7.8

Good

8,681 reviews

Reviews

1 / 20

10.0

Excellent

Salvador,Aug 2026

PHL - DTW

No food and entertainment. Also de aircraft is old and noisy.

Allegiant Air

7.3

Good

679 reviews

Delta

7.8

Good

8,681 reviews

Reviews

1 / 20

10.0

Excellent

Salvador,Aug 2026

PHL - DTW

No food and entertainment. Also de aircraft is old and noisy.

JetBlue

7.1

Good

3,068 reviews

Delta

7.8

Good

8,681 reviews

Reviews

1 / 20

10.0

Excellent

Salvador,Aug 2026

PHL - DTW

No food and entertainment. Also de aircraft is old and noisy.

American Airlines

7.0

Good

12,189 reviews

Delta

7.8

Good

8,681 reviews

Reviews

1 / 20

10.0

Excellent

Salvador,Aug 2026

PHL - DTW

No food and entertainment. Also de aircraft is old and noisy.

Frontier

5.5

Fair

2,516 reviews

Delta

7.8

Good

8,681 reviews

Reviews

1 / 20

10.0

Excellent

Salvador,Aug 2026

PHL - DTW

No food and entertainment. Also de aircraft is old and noisy.

Related info for your journey

What airport do you fly from for flights from Philadelphia to Port St. Lucie?
For a flight from Philadelphia to Port St. Lucie, you will be flying from Philadelphia. Philadelphia (PHL) is just 7.0 mi from the center of the city. Philadelphia is the only Philadelphia airport and it handles 15 outbound flights to Port St. Lucie per day. 7 airlines have flights to Port St. Lucie from Philadelphia on a regular basis.
What are the cheapest airlines to fly from Philadelphia to Port St. Lucie one-way?
$38 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Allegiant Air and American Airlines, with prices starting from $39 and $55, respectively.
What are the most reliable airlines from Philadelphia to Port St. Lucie?
No one likes to see their flight delayed. When booking a flight from Philadelphia to Port St. Lucie consider choosing Iberia (83%), Alaska Airlines (83%) or American Airlines (81%) as they are the most reliable in getting you off to your destination on time.
What are the cheapest flights from Philadelphia to Port St. Lucie?
Looking for the cheapest flight from Philadelphia to Port St. Lucie? While on average our users pay $569, our data indicates the cheapest price to be $93. The most popular route (Philadelphia - Fort Lauderdale), is priced around $111.
Can I find deals for flights from Philadelphia to Port St. Lucie that include hotel bookings?
Yes. In addition to deals on Philadelphia to Port St. Lucie flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Philadelphia to Port St. Lucie?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Philadelphia to Port St. Lucie.
Can I find deals for business class flights from Philadelphia to Port St. Lucie?
Yes. Cheapflights offers flight deals from Philadelphia to Port St. Lucie by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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Top 7 airlines flying from Philadelphia to Port St. Lucie

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$61	Average$244	FlexibilityNo cancel fee	On-time62%
Allegiant Air	Cheapest$78	Average$188	FlexibilityNo cancel fee	On-time88%
JetBlue	Cheapest$101	Average$339	FlexibilityNo cancel fee	On-time62%
Delta	Cheapest$113	Average$337	FlexibilityNo cancel fee	On-timeN/A
Southwest	Cheapest$141	Average$420	FlexibilityNo cancel fee	On-time63%
American Airlines	Cheapest$168	Average$423	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$316	Average$404	FlexibilityNo cancel fee	On-time69%

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Cheap flights from Philadelphia (PHL) to Port St. Lucie, FL

Find cheap flights from Philadelphia to Port St. Lucie with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Find flight deals from Philadelphia to Port St. Lucie

Most accurate provider

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Popular in

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Cheapflights Insights

What is the cheapest time of day to fly from PHL to LU5?

One of the essential ways to save on airfare from Philadelphia to Port St. Lucie is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the afternoon could potentially save you up to 26% on airfare.

What is the cheapest day to fly from Philadelphia to Port St. Lucie?

Travelers seeking maximum savings on their Philadelphia to Port St. Lucie flight should consider departing on Sunday at noon when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Philadelphia to Port St. Lucie

The most flights from PHL to LU5 are scheduled on a Sunday (27 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (11 on average).

Reviews of airlines servicing Port St. Lucie

Get a feel of what it's like to fly with Delta,Allegiant Air, andJetBlue from Philadelphia to Port St. Lucie by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

What airport do you fly from for flights from Philadelphia to Port St. Lucie?

What are the cheapest airlines to fly from Philadelphia to Port St. Lucie one-way?

What are the most reliable airlines from Philadelphia to Port St. Lucie?

What are the cheapest flights from Philadelphia to Port St. Lucie?

Can I find deals for flights from Philadelphia to Port St. Lucie that include hotel bookings?

How can I find direct flights from Philadelphia to Port St. Lucie?

Can I find deals for business class flights from Philadelphia to Port St. Lucie?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Philadelphia to Port St. Lucie

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Port St. Lucie by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Philadelphia to Port St. Lucie by cabin class

Find flights from Philadelphia to Port St. Lucie, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Philadelphia and Port St. Lucie flights

Browse other Philadelphia and Port St. Lucie flight options. Last updated on October 26, 2026.

Other flights from Philadelphia

Browse through other flights departing from Philadelphia. Flights are based on user searches made on Cheapflights and were last updated on October 26, 2026.

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Top 7 airlines flying from Philadelphia to Port St. Lucie

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