$43 Find Cheap Flights from Chicago to Port St. Lucie

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Chicago to Port St. Lucie departing on 5/3. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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Everything you should know

Cheapest round-trip
$89
Typical prices: $318-$148
Frontier
Wed 5/27Wed 6/3
ORD - FLL • Non-stop
Cheapest one-way
$43
Typical prices: $94-$219
Spirit Airlines
Sun 5/3
ORD - FLL • Non-stop
Arrival airport
You can't fly directly to Port St. Lucie. It is served by Fort Lauderdale (FLL), located 83.9 miles from Port St. Lucie.
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Flight Deals
Useful Info
Flight Deals

Cheap Flights from Chicago to Port St. Lucie (CHI-FLL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Chicago to Port St. Lucie that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Chicago to Port St. Lucie

Wed, May 27 - Wed, Jun 3
Frontier Logo
8:05 am - 12:20 pm
ORD
-
FLL
3h 15mnonstop
Frontier Logo
9:53 am - 12:37 pm
FLL
-
ORD
3h 44mnonstop
$89Frontier
Wed, May 27 - Tue, Jun 9
Frontier Logo
8:05 am - 12:20 pm
ORD
-
FLL
3h 15mnonstop
Frontier Logo
9:53 am - 12:25 pm
FLL
-
ORD
3h 32mnonstop
$90Frontier
Wed, Jun 10 - Wed, Jun 17
Frontier Logo
7:52 am - 12:09 pm
ORD
-
FLL
3h 17mnonstop
Frontier Logo
9:53 am - 12:43 pm
FLL
-
ORD
3h 50mnonstop
$93Frontier
Wed, Jun 10 - Wed, Jun 17
Frontier Logo
7:52 am - 12:09 pm
ORD
-
FLL
3h 17mnonstop
Frontier Logo
9:53 am - 12:43 pm
FLL
-
ORD
3h 50mnonstop
$94Frontier
Tue, Jun 2 - Tue, Jun 9
Multiple Airlines Logo
5:05 am - 9:10 am
ORD
-
FLL
3h 05mnonstop
Multiple Airlines Logo
9:53 am - 12:25 pm
FLL
-
ORD
3h 32mnonstop
$95Multiple Airlines
Wed, May 27 - Thu, May 28
Frontier Logo
8:05 am - 12:20 pm
ORD
-
FLL
3h 15mnonstop
Frontier Logo
9:53 am - 12:37 pm
FLL
-
ORD
3h 44mnonstop
$96Frontier
Fri, May 15 - Fri, May 29
Frontier Logo
4:05 pm - 8:20 pm
ORD
-
FLL
3h 15mnonstop
Frontier Logo
9:53 am - 12:37 pm
FLL
-
ORD
3h 44mnonstop
$100Frontier
Mon, May 18 - Thu, May 21
Multiple Airlines Logo
4:05 pm - 8:20 pm
ORD
-
FLL
3h 15mnonstop
Multiple Airlines Logo
6:05 am - 8:22 am
FLL
-
ORD
3h 17mnonstop
$101Multiple Airlines
Wed, Aug 19 - Wed, Aug 26
Multiple Airlines Logo
5:26 pm - 9:37 pm
ORD
-
FLL
3h 11mnonstop
Multiple Airlines Logo
9:53 am - 12:25 pm
FLL
-
ORD
3h 32mnonstop
$102Multiple Airlines
Wed, May 27 - Sat, May 30
Frontier Logo
8:05 am - 12:20 pm
ORD
-
FLL
3h 15mnonstop
Frontier Logo
9:53 am - 12:37 pm
FLL
-
ORD
3h 44mnonstop
$103Frontier
Useful Info

Good to know

Low seasonSeptember
Cheapest flight$43
Best time to beat the crowds with an average 29% drop in price.
Most popular time to fly with an average 23% increase in price.
Flight from Chicago O'Hare Airport to Fort Lauderdale

When to book flights from Chicago to Port St. Lucie

Are your dates flexible? Find out the best times to travel from Chicago to Port St. Lucie based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

FAQs for booking flights from Chicago to Port St. Lucie

  • Which airports will I be using when flying from Chicago to Port St. Lucie?

    When flying out of Chicago you’ll be using one of these airports: Chicago Midway, Chicago O'Hare Intl or Chicago Greater Rockford. Port St. Lucie does not have its own airport so you’ll be flying into nearby Fort Lauderdale airport, which is 83.9 mi away.

  • How long does a flight from Chicago to Port St. Lucie take?

    Direct flights cover the 1,171 miles separating Chicago and Port St. Lucie in about 2h 55m.

  • How many flights are there between Chicago and Port St. Lucie?

    34 direct flights run between Chicago and Port St. Lucie on a daily basis. On average, there are about 238 departures each week.

  • What’s the cheapest day of the week to fly between Chicago and Port St. Lucie?

    Consider leaving on a Saturday and avoid Mondays if you are looking for the best rates. For your return to Chicago, you’ll find the best rates on Wednesdays and the most expensive ones on Sundays.

  • How does KAYAK find such low prices on flights from Chicago to Port St. Lucie?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Chicago to Port St. Lucie.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Chicago to Port St. Lucie?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Port St. Lucie from Chicago is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Chicago to Port St. Lucie?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Port St. Lucie with an airline and back to Chicago with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Chicago to Port St. Lucie?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Port St. Lucie from Chicago up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • Which airlines provide the cheapest flights from Chicago to Port St. Lucie?

    In the last 72 hours, the cheapest one-way ticket between Chicago and Port St. Lucie found on KAYAK was with Frontier for $29. Frontier offered a round-trip connection from $56 and Spirit Airlines from $75.

Top tips for finding cheap flights from Chicago to Port St. Lucie

  • There is no airport in Port St. Lucie. Instead, you’ll be flying into Fort Lauderdale-Hollywood Airport when flying between Chicago and Port St. Lucie.
  • The cheapest flight from Chicago to Port St. Lucie was found 36 days before departure, on average.
  • Book at least 1 week before departure in order to get a below-average price.
  • High season is considered to be February, March and April. The cheapest month to fly is September.

Reviews of the top 5 airlines serving Chicago to Port St. Lucie

 
Need help choosing which airline to fly with from Chicago to Port St. Lucie? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4324 reviews
8.0Comfort
8.6Crew
7.0Food
8.1Boarding
7.5Entertainment
Airline reviews

The flight was okay. The pilots did an amazing job and kept us updated on the flight. The flight attendants were okay. They found time to be chatty with each other rather than focus on the guests. One of the attendants was a little less warm when asking about my bag I had on my lap that I was using during latter part of the mid- flight. Mind you, it was not the departure descent. I’m respectful to each and every attendant, it was the tone in her voice reminding me to place my carryon bag on the floor. I hope to have a better experience next time.

10.0 ExcellentMechelle, Apr 2026
MCI - PNS
Read more Southwest reviews

The flight was okay. The pilots did an amazing job and kept us updated on the flight. The flight attendants were okay. They found time to be chatty with each other rather than focus on the guests. One of the attendants was a little less warm when asking about my bag I had on my lap that I was using during latter part of the mid- flight. Mind you, it was not the departure descent. I’m respectful to each and every attendant, it was the tone in her voice reminding me to place my carryon bag on the floor. I hope to have a better experience next time.

Terrible. Even though there’s assigned seating now, they are still the slowest boarding airline of anyone.

I flew twice this week on Southwest, was delayed over 2 hours both ways. From Pittsburgh to Chicago it was due to weather but the gate agents, pilot etc were great at updating everyone. Today from Midway to Pittsburgh the plane had come from an international location, kept getting delayed, no information was given until we were delayed for the third time. It was ridiculous, whoever scheduled that plane to fly to Pittsburgh after didn’t consider a lot of things.

It was canceled. Supposedly weather. But there was no snow in Baltimore. At least we found out before driving to airport

The staff was very friendly, professional, and courteous. The overall flight was a great experience.

Okay, not wonderful. Short flight. Wi-fi didn't work properly. Stuck waiting for a gate to open upon arrival for 20 or so minutes.

They sent a notice that they were boarding an hour early. We had to leave the club and run to the gate. They said sorry, that came from corporate and was a mistake. They did not have enough seating because the flight before it had not taken off on time. They moved our gate and delayed it for an hour.

Plane crashed into a bus or some other vehicle on the ground while pulling out of the gate. No injuries, but wing tip was damaged and returned to gate for “maintenance issues” and we departed 5 hours later because the plane went out of service and new plane was flown in from a nearby airport, Midway.

All was good. I just had a hard time getting connected to the WiFi/internet during the flight

Better and more food and drinks. Put msnbc and free speech tv on the news channel selection list.

The crew was great. Very friendly and responsive. The plane was old, small and tight. We ran out of overhead space and I had to check. Middle seat was particularly tight.

Several missed and almost missed connections. It felt like everything was being patched together last minute without enough resources and it ended up being an extremely stressful experience that basically ruined our weekend on the west coast. What a waste.

Crew was friendly. Seats are too narrow, particularly when a big person is in the adjacent seat, but I understand this is due to smaller planes usually flight into Lincoln. I have experienced several flight delays going out and coming into Lincoln airport, I say maybe 50% or higher of the flights I've taken out of this airport have been delayed.

Great flight. Boarded efficiently. Arrived early at CLT. There was no in flight entertainment on this aircraft. Great crew.

The seat was comfortable. There was a lot of turbulence. If it weren't for that,it would have been okay.

Poor communication, flight was delayed for preventable reasons. I missed my connection.

No meal service to the back of the plane as it started late or was too slow to get it out before it was time to land.

Terrible, if possible won't be flying again anytime soon!

Efficient boarding and early departure. Very smooth flight. Early arrival in ATL. Great flight.

Smooth and easy boarding, comfortable for the entire 5 hour flight, and the seat back entertainment was great! I appreciated all the features, from location info and maps, movies, the ability to connect with Bluetooth headphones, and good selection of movies. Food was good, normal airline snacks (I didn’t purchase anything)

The airplane was an old model, the overhead didn’t have enough room for people’s items and made boarding and boarding disappointing and stressful. Crew allowed passengers to bring more than the permitted baggage sizes.

Original flight was on time, then late, then changed gates...4 times. Once our newest plane came in, it was fine.

I almost missed my flight and they helped me out enormously

Delays experienced in boarding/take off due to incoming plane delayed. However, the boarding time/depart time in the app was significantly delayed in providing these updates. Usually not updated until an hour after we should have already boarded. Poorly managed.

Moved to earlier flight which unexpectedly had maintenance issues initially indicated as quick fix to ultimately plane changes. Moved back to original flight, also delayed. In all cases customer updates and communication very unclear, no updates on drivers for delays.

Typical AA - late by 90+ mn. Gate changed twice... Changed the departure time 6 times No explanation, no communication on reasons for delay I travel with AA twice a year... and it is consistently very poor.. I will continue to use AA only when i have to.

The gate got changed several times and the flight was delayed over an hour. Awful experience

American continues to decline in their customer service and its beyond disappointing.

It was an older plane. First Class was not especially roomy or comfortable. It was a short flight so there were no meal but they did offer mixed nuts which used to be normal but now is rare. Crew member was very polite and professional.

Flight to Tampa was delayed taking off due to plane arriving late but no other issues

Flight was delayed 6plus hours Did not take flight Customer service was terrible Will never fly again and will spread how terrible you are You stink

I didnt have a flight. Kayak must be on drugs because I confirmed with spirit that I had no booked flight.

We were surprised to be charged $99 for a personal item. And of course everything offered on the flight was an additional charge. Other than that the pilot flew and landed the plane well and the attendants and fellow passengers were nice enough.

baggage drop off was a bit much. I felt like I worked for spirit airlines since I did all the work.

The repeated flight delays—this time nearly three hours without any weather-related cause—are unacceptable. Yet, passengers are penalized heavily even for being a minute late. It is unreasonable that there is no compensation for such significant delays, nor even basic provisions like water during the wait or in flight. This imbalance in accountability is deeply frustrating and needs to be addressed.

Always Good ,… Spirit customers are high class Delta customers are self proclaimed elites and American crews you can hear them complain about everything (they’re loud)

They cancelled our flight. 2 hours before we were supposed to take off and offered us nothing! We got our money back and that was it. No other flight to get to our cruise no working with another airline or with us to get there. Terrible customer service, no apology.

We get stuck in the plane when landed during 45min and no communication from the crew People were listening to their phone and music out loud and nobody told them anything I definitely want stop booking spirit flight it is a disaster

Good: It was cheap and they got us to our destination safely. Not so Good: Gates experience with many, many nauseatingly (almost) threatening announcements about bags size and how much they were going to charge us if our bag was too big, even to the point of having a gate agent roaming around through the passengers eyeballing bags size and making people go check their bags in the sizers.

Terrible. The flight was randomly delayed in Chicago causing us to miss our connection and they offered us a flight the next day at 6 am and it would have taken till 345 to get to Pensacola. They didn’t cover any fees. Our bags also supposedly were on the flight to Pensacola and we tried to get them yesterday after driving 6 hours and nobody was available. Worst company ever and will never use them again. Had to pay for a rental. Spirit is claiming in climate weather for the delay but there wasn’t any weather issuesz it’s a bunch of bullshit and I am not happy

They didn’t offer a water, even after I asked

My flight was originally from SAT to MCO connecting from MCO to ORD. We got diverted to ATL and than Frontier staff there was sooo un helpful first they said they couldn’t give us any accommodation since our flight first got delayed that cancelled and now it’s 221am and I am still in ATL since they said they need to create a new flight my final destination is ORD and I have been delayed twice and cancelled. With no real help the frontier app didn’t work no email updates over all such a horrible experience

Flight was canceled. Most upsetting was message from Kayak, stating that the flight was canceled and click with Kayak for details regarding rebook, refund details. THERE'S NO INFORMATION PROVIDED BY KAYAK EXCEPT THAT FLIGHT IS CANCELED. AND NOW THIS SURVEY TO FIND OUT HOW WAS THE FLIGHT !!!!!!!

I am writing to express my disappointment with my recent Frontier Airlines flight. I was charged $99 at the gate because my bag was said to be too large, yet once onboard there was no available overhead bin space, and I was required to place the bag under the seat in front of me anyway. This made the charge feel unnecessary and unfair. Additionally, before the flight even took off, I was asked to move from the seat I paid for into a middle seat so another passenger and her cat could have my seat to themselves. I was not offered compensation or an explanation for being moved from a paid seat. Between the unexpected bag fee and being forced to give up my seat, this experience fell well below acceptable customer service standards. I would appreciate a review of this situation and appropriate compensation.

One of the worst travel experiences I've had. Had a flight scheduled with CVG to RSW on VLSWQX this morning departing at 5:30. Two individuals at the gate and one was in training. Not her fault but she didn't have the ability to check people in resulting in at least 15 families that didn't make it on the plane because they weren't checked into the system in time. When arriving at the airport to drop off our prepaid checked bags, the bag drop off agent asked if we could check our bags at the gate because of the long line. We said no problem so arrived at the gate by 5:00. They told those people that had previously paid for checked bags to stand off to the side while they let others that either didn't have a checked bag or their bag was already on the plan through. Realizing the gate workers had an issue, they either called for help or this lady showed up late for work as she didn't arrive until 5:15. The worker who had been there training the other individual and working diligently to make sure all passengers got on board. He even said that at one point all people that are currently in line are fine but asked the person in training to stand outside the ticketing area around 5:15 to notify any late travels that the flight was in boarding process and they arrrived too late. At that point, we're sill standing off to the side with our pre-paid checked bags patiently waiting. When the new lady arrived she couldn't have been more rude. It was an awful seen. Essentially they had asked for those without an assigned seat to board last, those with pre-paid checked bag stand off to the site and any traveling with a larger items that needed to be checked at the gate (such as a stroller), wait on the side. They realized that the flight needed to leave on time so the gate attendant shut the gate. So anyone without a seat assignment, those that had pre-checked bags, and the worst one I saw was a mother with two infant children was in line with use because she was asked to stand to the side because her stroller. When they shut the door to the plan they told her she could no longer get on. Her checked bags were already on the plane with her car keys in them, and the lady told her we couldn't accept anyone else on because the door was shut. She didn't even have a way to get home from the airport. Truely evil behavior. I've flown Frontier enough to know customer service is not a top priority in the company's mission, but this was an all-time low. I'm sending this after an 18 hour drive that our family just completed to Bonita Springs . I felt really bad for the lady being trained and the other individual trying to help, but when the new lady came to the gate she was truly one of the rudest individuals I've ever met. One lady had been there since 4am but because she didn't have an assigned seat they wouldn't let her on the plan.

Better than expected. Staff were friendly and nice on both flights.

Terrible. Flight cancelled with no reasoning and no flights to rebook. Employees were useless and did nothing to help. Did not even know where to retrieve luggage from the cancelled flight. Flyers beware.

No fault of Frontier staff: plane was very late, reached Orlando at 1 am, took a while to get luggage. Weather, gov financial shutdown impact on TSA, air controllers seemed to have multiple flights backed up. Frontier staff seemed to cope as gracefully as possible. It did reassure me that I and my new hip could adapt to travel challenges. Food/entertainment were irrelevant to my trip.

It was well done. It was my first time flying with them and I was nervous b/c I have heard of many cancelled and/or delray flights. Everything went smoothly.

Just know that everything, and I mean everything is “ala cart”. 60$ just to put something in the overhead bin. I will never fly Frontier again nor do I recommend them to anyone else.

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

Complete your trip to Port St. Lucie with a hotel stay or car rental