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

$29 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on JetBlue and Delta, with prices starting from $51 and $78, respectively.

Weekly flight availability from Atlanta to Port St. Lucie

The most flights from ATL to LU5 are scheduled on a Friday (90 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (26 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 Atlanta to Port St. Lucie?

Looking for the cheapest flight from Atlanta to Port St. Lucie? While on average our users pay $506, our data indicates the cheapest price to be $29. The most popular route (Atlanta Hartsfield-Jackson - Fort Lauderdale), is priced around $58.

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

No one likes to see their flight delayed. When booking a flight from Atlanta to Port St. Lucie consider choosing Korean Air (77%), Delta (77%) or Aeromexico (77%) as they are the most reliable in getting you off to your destination on time.

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

Frontier, Delta and JetBlue are the most popular airlines when flying from Atlanta to Port St. Lucie.

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

Located just 8.2 mi from the city center, Atlanta Hartsfield-Jackson is the airport most travelers will use when flying to Port St. Lucie from Atlanta. Booking flights from Hartsfield-Jackson (ATL) to Port St. Lucie should be relatively easy as there are 30 daily outbound flights to Port St. Lucie from 4 different airlines.

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

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

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

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

Yes. Cheapflights offers flight deals from Atlanta 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 Atlanta Hartsfield-Jackson to Port St. Lucie are usually found in March or February, booked 47 days in advance, depart on a Thursday or Friday and return on a Friday

Find flight deals from Atlanta to Port St. Lucie

Most accurate provider	FlightHub 3 stars
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Popular in	June
Cheapest in	March
Average price	$151

Provider with most accurate pricing for Atlanta Hartsfield-Jackson-Fort Lauderdale flight deals.

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Highest demand for flights based on searches. 18% potential increase in price ($35 potential increase over avg. RT price).

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Cheapest flight prices on average. 3% potential price decrease ($6 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 Atlanta to Port St. Lucie

Prices

Airlines

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

It’s optimal to fly from Atlanta to Port St. Lucie in the afternoon. By choosing this option you can save up to 19% on the cost of your flight, compared to a flight in the morning.

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

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

Reviews of airlines servicing Port St. Lucie

Read reviews from past customers who have flown Delta,JetBlue, andFrontier from Atlanta to Port St. Lucie. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

7.8

Good

8,681 reviews

Reviews

1 / 20

4.0

Okay

Joel,May 2026

ATL - JAX

The flight was delivered 50 minutes and taxing took what felt like 20 minutes to takeoff.

Delta

7.8

Good

8,681 reviews

Delta

7.8

Good

8,681 reviews

Reviews

1 / 20

4.0

Okay

Joel,May 2026

ATL - JAX

The flight was delivered 50 minutes and taxing took what felt like 20 minutes to takeoff.

JetBlue

7.1

Good

3,068 reviews

Delta

7.8

Good

8,681 reviews

Reviews

1 / 20

4.0

Okay

Joel,May 2026

ATL - JAX

The flight was delivered 50 minutes and taxing took what felt like 20 minutes to takeoff.

Frontier

5.5

Fair

2,520 reviews

Delta

7.8

Good

8,681 reviews

Reviews

1 / 20

4.0

Okay

Joel,May 2026

ATL - JAX

The flight was delivered 50 minutes and taxing took what felt like 20 minutes to takeoff.

Related info for your journey

What airport do you fly from for flights from Atlanta to Port St. Lucie?
Located just 8.2 mi from the city center, Atlanta Hartsfield-Jackson is the airport most travelers will use when flying to Port St. Lucie from Atlanta. Booking flights from Hartsfield-Jackson (ATL) to Port St. Lucie should be relatively easy as there are 30 daily outbound flights to Port St. Lucie from 4 different airlines.
What are the cheapest airlines to fly from Atlanta to Port St. Lucie one-way?
$29 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on JetBlue and Delta, with prices starting from $51 and $78, respectively.
What are the most reliable airlines from Atlanta to Port St. Lucie?
No one likes to see their flight delayed. When booking a flight from Atlanta to Port St. Lucie consider choosing Korean Air (77%), Delta (77%) or Aeromexico (77%) as they are the most reliable in getting you off to your destination on time.
What are the cheapest flights from Atlanta to Port St. Lucie?
Looking for the cheapest flight from Atlanta to Port St. Lucie? While on average our users pay $506, our data indicates the cheapest price to be $29. The most popular route (Atlanta Hartsfield-Jackson - Fort Lauderdale), is priced around $58.
Can I find deals for flights from Atlanta to Port St. Lucie that include hotel bookings?
Yes. In addition to deals on Atlanta to Port St. Lucie flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Atlanta 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 Atlanta to Port St. Lucie.
Can I find deals for business class flights from Atlanta to Port St. Lucie?
Yes. Cheapflights offers flight deals from Atlanta 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 4 airlines flying from Atlanta to Port St. Lucie

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$46	Average$141	FlexibilityNo cancel fee	On-time62%
JetBlue	Cheapest$74	Average$188	FlexibilityNo cancel fee	On-time62%
Southwest	Cheapest$117	Average$265	FlexibilityNo cancel fee	On-time63%
Delta	Cheapest$117	Average$305	FlexibilityNo cancel fee	On-timeN/A

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Cheap flights from Atlanta (ATL) to Port St. Lucie, FL

Find cheap flights from Atlanta 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 Atlanta to Port St. Lucie

Most accurate provider

Most trusted provider

Popular in

Cheapest in

Average price

Cheapflights Insights

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

It’s optimal to fly from Atlanta to Port St. Lucie in the afternoon. By choosing this option you can save up to 19% on the cost of your flight, compared to a flight in the morning.

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

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

Weekly flight availability from Atlanta to Port St. Lucie

The most flights from ATL to LU5 are scheduled on a Friday (90 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (26 on average).

Reviews of airlines servicing Port St. Lucie

Read reviews from past customers who have flown Delta,JetBlue, andFrontier from Atlanta to Port St. Lucie. Users can see the overall rating for each airline as well as how each is rated 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 Atlanta to Port St. Lucie?

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

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

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

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

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

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

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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 Atlanta to Port St. Lucie by cabin class

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

Atlanta and Port St. Lucie flights

Browse other Atlanta and Port St. Lucie flight options. Last updated on October 25, 2026.

Other flights from Atlanta

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Top 4 airlines flying from Atlanta to Port St. Lucie

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