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Port St. Lucie

$58+ Cheap flights from Chicago (CHI) to Port St. Lucie, FL

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/22. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — MCO
Jan 22 — Jan 291
Thu 1/22
Thu 1/29
1 adult, Economy
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Cheapflights Tip: The best prices from Chicago to Port St. Lucie are usually found in October or September, booked 30 days in advance, depart on a Tuesday or Wednesday and return on a Thursday

Cheap flight deals from Chicago to Port St. Lucie

Cheapest flights from Chicago to Port St. Lucie
Explore the most affordable flight options available from Chicago to Port St. Lucie. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 23, 2025.

This Mytrip deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3112:09 pmORD - FLL
1 stop7h 40mSpirit Airlines
Thu 2/58:54 amFLL - ORD
Nonstop3h 28mSpirit Airlines
Deal found 12/21$117
This Super.com deal was found by Cheapflights users on 12/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/307:30 amORD - FLL
Nonstop3h 09mSpirit Airlines
Tue 1/138:54 amFLL - ORD
Nonstop3h 28mSpirit Airlines
Deal found 12/22$124
This CheapOair deal was found by Cheapflights users on 12/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:05 amORD - FLL
1 stop11h 20mFrontier
Thu 1/112:31 pmFLL - ORD
Nonstop3h 31mFrontier
Deal found 12/22$138
This Kiwi.com deal was found by Cheapflights users on 12/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3112:09 pmORD - FLL
1 stop6h 40mMultiple Airlines
Sat 1/105:17 pmFLL - ORD
1 stop6h 19mMultiple Airlines
Deal found 12/22$152
This Cheapflightsfares deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/315:00 amORD - FLL
Nonstop3h 10mSpirit Airlines
Thu 1/88:54 amFLL - ORD
Nonstop3h 28mSpirit Airlines
Deal found 12/21$156
This Priceline deal was found by Cheapflights users on 12/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3112:09 pmORD - FLL
1 stop7h 40mSpirit Airlines
Sun 1/119:25 pmFLL - ORD
Nonstop3h 21mSpirit Airlines
Deal found 12/22$159
This Kiwi.com deal was found by Cheapflights users on 12/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/312:15 pmORD - FLL
1 stop17h 22mFrontier
Tue 1/66:55 pmFLL - ORD
1 stop28h 44mFrontier
Deal found 12/23$163
This Cheapflightsfares deal was found by Cheapflights users on 12/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3112:09 pmORD - FLL
1 stop7h 40mSpirit Airlines
Thu 1/16:40 amFLL - ORD
1 stop8h 41mSpirit Airlines
Deal found 12/22$170
This Kiwi.com deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/318:15 amMDW - FLL
1 stop14h 43mMultiple Airlines
Wed 1/78:20 amFLL - MDW
1 stop14h 57mMultiple Airlines
Deal found 12/21$232
This Kiwi.com deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/313:32 pmMDW - FLL
2 stops14h 47mMultiple Airlines
Tue 1/610:55 pmFLL - MDW
1 stop24h 22mMultiple Airlines
Deal found 12/21$234
This Kiwi.com deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/318:15 amMDW - FLL
1 stop9h 10mMultiple Airlines
Mon 1/510:55 pmFLL - MDW
1 stop24h 22mMultiple Airlines
Deal found 12/21$237
This Kiwi.com deal was found by Cheapflights users on 12/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:12 amMDW - FLL
1 stop11h 13mFrontier
Thu 1/15:40 amFLL - MDW
1 stop17h 32mFrontier
Deal found 12/22$253

Find flight deals from Chicago to Port St. Lucie

Keep the following information in mind while searching for Chicago to Port St. Lucie flight deals. Data was last updated December 23, 2025.

Most accurate provider

Justfly.com
3 stars

Most trusted provider

Justfly.com
3 stars

Round-trip from

$93
(Priceline)

One-way from

$58
(Spirit)

Popular in

March

Cheapest in

October

Average price

$319
Provider with most accurate pricing for Chicago (CHI)-Fort Lauderdale flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Fort Lauderdale flights.
Search Deals
From Chicago (CHI) to Port St. Lucie
Search Deals
One-way flight from Chicago (CHI) to Port St. Lucie
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($30 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Chicago to Port St. Lucie that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 23, 2025.
Use the filters below to find and compare flights from Chicago to Port St. Lucie that are best for you.

Fly from

Chicago

Fly to

Port St. Lucie

Route

Depart

Return

Price

ChicagoFort Lauderdale

ORD - FLL

ORDFLL

Chicago O'Hare Intl

Sat 1/31

5:32 pm-9:40 pm

Nonstop3h 08m

Fort Lauderdale

Sun 2/1

6:40 am-2:17 pm

1 stop8h 37m

$98

ChicagoFort Lauderdale

ORD - FLL

ORDFLL

Chicago O'Hare Intl

Thu 2/26

10:19 am-7:45 pm

1 stop8h 26m

Fort Lauderdale

Mon 3/2

8:54 am-11:22 am

Nonstop3h 28m

$98

ChicagoFort Lauderdale

ORD - FLL

ORDFLL

Chicago O'Hare Intl

Sat 1/17

10:07 am-8:05 pm

1 stop8h 58m

Fort Lauderdale

Wed 1/21

6:39 am-1:13 pm

1 stop7h 34m

$106

ChicagoFort Lauderdale

ORD - FLL

ORDFLL

Chicago O'Hare Intl

Wed 1/28

12:42 pm-10:36 pm

1 stop8h 54m

Fort Lauderdale

Mon 2/2

6:40 am-2:17 pm

1 stop8h 37m

$106

ChicagoFort Lauderdale

ORD - FLL

ORDFLL

Chicago O'Hare Intl

Fri 2/20

10:19 am-7:45 pm

1 stop8h 26m

Fort Lauderdale

Wed 2/25

6:35 am-5:46 pm

1 stop12h 11m

$124

ChicagoFort Lauderdale

ORD - FLL

ORDFLL

Chicago O'Hare Intl

Mon 1/12

12:44 pm-8:10 pm

1 stop6h 26m

Fort Lauderdale

Thu 1/15

7:10 am-11:47 am

1 stop5h 37m

$124

ChicagoFort Lauderdale

ORD - FLL

ORDFLL

Chicago O'Hare Intl

Fri 1/23

12:44 pm-8:10 pm

1 stop6h 26m

Fort Lauderdale

Sat 1/31

7:10 am-11:47 am

1 stop5h 37m

$140

ChicagoFort Lauderdale

MDW - FLL

MDWFLL

Chicago Midway

Tue 1/27

8:30 am-12:40 pm

Nonstop3h 10m

Fort Lauderdale

Sat 1/31

6:40 am-8:50 am

Nonstop3h 10m

$157

ChicagoFort Lauderdale

MDW - FLL

MDWFLL

Chicago Midway

Wed 1/14

11:39 am-7:38 pm

1 stop6h 59m

Fort Lauderdale

Sun 1/18

7:30 am-5:20 pm

1 stop10h 50m

$157

ChicagoFort Lauderdale

MDW - FLL

MDWFLL

Chicago Midway

Wed 2/11

8:25 am-12:35 pm

Nonstop3h 10m

Fort Lauderdale

Wed 2/18

11:00 am-6:05 pm

1 stop8h 05m

$174

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/21

Showing 1-10 of 44 results
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Best time to book a flight from Chicago to Port St. Lucie

Have a flexible travel schedule? Discover the best time to fly to Port St. Lucie from Chicago with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

How far ahead should I book a flight from Chicago to Port St. Lucie?

Use this chart to determine the optimal time to book a round-trip flight from Chicago to Port St. Lucie. Price data was last updated on December 19, 2025.

Booking 30 days in advance of your planned departure date is, on average, the best time to get cheap flights from Chicago to Port St. Lucie. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Chicago to Port St. Lucie?

Currently, March is the cheapest month in which you can book a flight from Chicago to Port St. Lucie (average of $47). Flying from Chicago to Port St. Lucie in June is currently the most expensive (average of $111). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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

Find hourly flight availability from Chicago to Port St. Lucie. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 23, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 18% on flights from Chicago to Port St. Lucie by exploring options for tickets in the afternoon.

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

Use this chart to determine the cheapest time to fly round-trip from Chicago to Port St. Lucie. Price data was last updated on December 20, 2025.

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

Weekly flight availability from Chicago to Port St. Lucie

Explore weekly flight availability from Chicago to Port St. Lucie. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated December 23, 2025.

The most flights from CHI to LU5 are scheduled on a Monday (87 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (36 on average).

How much does it cost to fly round-trip from Chicago to Port St. Lucie?

Reviews of airlines servicing Port St. Lucie

Get insights into the airlines that provide service to Port St. Lucie. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Port St. Lucie. Reviews last updated December 23, 2025.
Get a feel of what it's like to fly with Southwest, United Airlines, and American Airlines from Chicago 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.
Southwest
8.0
Very good
4,253 reviews

Overall

8.0

Food

7.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Sarah,Aug 2024

MDW - AUS

My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.
Southwest
8.0
Very good
4,253 reviews
Southwest
8.0
Very good
4,253 reviews

Overall

8.0

Food

7.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Sarah,Aug 2024

MDW - AUS

My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.
United Airlines
7.4
Good
9,105 reviews
Southwest
8.0
Very good
4,253 reviews

Overall

8.0

Food

7.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Sarah,Aug 2024

MDW - AUS

My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.
American Airlines
7.2
Good
11,054 reviews
Southwest
8.0
Very good
4,253 reviews

Overall

8.0

Food

7.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Sarah,Aug 2024

MDW - AUS

My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.
Spirit Airlines
6.3
Okay
8,196 reviews
Southwest
8.0
Very good
4,253 reviews

Overall

8.0

Food

7.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Sarah,Aug 2024

MDW - AUS

My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.
Frontier
5.8
Fair
3,075 reviews
Southwest
8.0
Very good
4,253 reviews

Overall

8.0

Food

7.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Sarah,Aug 2024

MDW - AUS

My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.

Related info for your journey

Find useful and relevant information for your journey from Chicago to Port St. Lucie. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Chicago to Port St. Lucie?

    There are many flights that can get you from Chicago to Port St. Lucie in 3h 08m. Fly via Spirit Airlines or Southwest to get the fastest option. Chicago and Port St. Lucie are separated by a distance of 1183 mi. Generally, flights for this route are nonstop.

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

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $29. Spirit Airlines flights start at $47 while deals on American Airlines start at $76 one-way.

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

    No one likes to see their flight delayed. When booking a flight from Chicago to Port St. Lucie consider choosing Copa Airlines (88%), Volaris (83%) or Azul (81%) as they are the most reliable in getting you off to your destination on time.

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

    The cheapest flight price from Chicago to Port St. Lucie is $47. On average you can expect to pay $416. The most popular route, (Chicago O'Hare Intl - Fort Lauderdale), can usually be booked for $51.

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

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

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

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

    Yes. Cheapflights offers flight deals from Chicago 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.

  • What is the cheapest month to book a flight from Chicago to Port St. Lucie?

    Currently, March is the cheapest month in which you can book a flight from Chicago to Port St. Lucie (average of $47). Flying from Chicago to Port St. Lucie in June is currently the most expensive (average of $111). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Chicago to Port St. Lucie

See prices for flight routes from nearby airports that may be better suited for you.
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Top 8 airlines flying from Chicago to Port St. Lucie

Discover the top 8 airlines that operate flights from Chicago to Port St. Lucie. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$37Average$170FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$42Average$192FlexibilityNo cancel feeOn-time65%
DeltaCheapest$125Average$422FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$130Average$299FlexibilityNo cancel feeOn-time62%
Allegiant AirCheapest$138Average$222FlexibilityNo cancel feeOn-time88%
SouthwestCheapest$147Average$372FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$153Average$346FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$165Average$354FlexibilityNo cancel feeOn-time69%

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