$67+ 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 9/8. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — MCO
Sep 14 — Sep 211
Round-trip
1 adult, Economy
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Find cheap flights from Chicago to Port St. Lucie with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Chicago to Port St. Lucie are usually found in October or September, booked 36 days in advance, depart on a Tuesday or Thursday and return on a Thursday
Cheap flight deals from Chicago to Port St. Lucie
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Cheapest flights from Chicago to Port St. LucieExplore 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 August 15, 2026.
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 August 15, 2026.
This Super.com deal was found by Cheapflights users on 8/11. 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.
Thu 9/107:11 am -
Nonstop3h 12m
Thu 9/1712:18 pm -
Nonstop3h 27m
Deal found 8/11![Frontier logo]()
$99
This Frontier deal was found by Cheapflights users on 8/13. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/187:11 am -
Nonstop3h 12m
Sat 10/101:07 pm -
Nonstop3h 29m
Deal found 8/13![Frontier logo]()
$100
This Kiwi.com deal was found by Cheapflights users on 8/11. 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 8/268:05 am -
Nonstop3h 23m
Tue 9/11:23 pm -
1 stop11h 04m
Deal found 8/11![Frontier logo]()
$101
This Frontier deal was found by Cheapflights users on 8/11. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/17:11 am -
Nonstop3h 12m
Sat 10/3110:48 am -
1 stop8h 41m
Deal found 8/11![Frontier logo]()
$102
This FlightHub deal was found by Cheapflights users on 8/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/97:11 am -
Nonstop3h 12m
Sat 9/1212:53 pm -
Nonstop3h 27m
Deal found 8/10![Frontier logo]()
$103
This Expedia deal was found by Cheapflights users on 8/14. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/18:05 am -
Nonstop3h 23m
Sat 9/59:47 pm -
1 stop11h 06m
Deal found 8/14![Frontier logo]()
$104
This Frontier deal was found by Cheapflights users on 8/11. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/137:11 am -
Nonstop3h 12m
Sat 9/1912:53 pm -
Nonstop3h 27m
Deal found 8/11![Frontier logo]()
$105
This Frontier deal was found by Cheapflights users on 8/12. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/267:11 am -
Nonstop3h 12m
Sat 10/312:53 pm -
Nonstop3h 27m
Deal found 8/12![Frontier logo]()
$106
This Kiwi.com deal was found by Cheapflights users on 8/11. 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 8/268:05 am -
Nonstop3h 23m
Fri 8/2810:18 am -
Nonstop3h 32m
Deal found 8/11![Frontier logo]()
$107
This CheapOair deal was found by Cheapflights users on 8/11. 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 8/268:05 am -
Nonstop3h 23m
Mon 8/3110:18 am -
Nonstop3h 32m
Deal found 8/11![Frontier logo]()
$108
This Kiwi.com deal was found by Cheapflights users on 8/14. 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.
Tue 9/88:05 am -
Nonstop3h 23m
Tue 9/1512:53 pm -
Nonstop3h 27m
Deal found 8/14![Frontier logo]()
$109
This Southwest deal was found by Cheapflights users on 8/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/96:10 pm -
Nonstop3h 00m
Wed 9/164:55 pm -
Nonstop3h 10m
Deal found 8/10![Southwest logo]()
$109
Best flights from Chicago to Port St. LucieDiscover carefully curated flight deals from Chicago to Port St. Lucie that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 15, 2026.
Discover carefully curated flight deals from Chicago to Port St. Lucie that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 15, 2026.
This United Airlines deal was found by Cheapflights users on 8/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1712:49 pm -
Nonstop3h 09m
Tue 9/226:00 pm -
Nonstop3h 36m
Deal found 8/12![United Airlines logo]()
$117
This Southwest deal was found by Cheapflights users on 8/13. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/291:00 pm -
2 stops6h 30m
Thu 10/16:35 am -
Nonstop3h 10m
Deal found 8/13![Southwest logo]()
$132
This Delta deal was found by Cheapflights users on 8/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/195:00 pm -
1 stop6h 40m
Mon 9/217:48 pm -
1 stop5h 11m
Deal found 8/11![Delta logo]()
$217
This Southwest deal was found by Cheapflights users on 8/9. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1211:45 am -
2 stops7h 45m
Wed 9/166:35 pm -
1 stop4h 50m
Deal found 8/9![Southwest logo]()
$134
This Southwest deal was found by Cheapflights users on 8/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/117:30 am -
1 stop5h 10m
Tue 9/157:00 am -
2 stops6h 05m
Deal found 8/11![Southwest logo]()
$151
This Southwest deal was found by Cheapflights users on 8/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/238:35 am -
Nonstop3h 05m
Wed 9/307:20 am -
Nonstop3h 00m
Deal found 8/10![Southwest logo]()
$157
This United Airlines deal was found by Cheapflights users on 8/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/107:05 am -
1 stop7h 03m
Thu 9/176:00 pm -
Nonstop3h 36m
Deal found 8/14![United Airlines logo]()
$191
This Delta deal was found by Cheapflights users on 8/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/216:25 pm -
1 stop5h 19m
Sun 8/235:30 am -
1 stop5h 43m
Deal found 8/10![Delta logo]()
$217
This Southwest deal was found by Cheapflights users on 8/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/297:40 pm -
Nonstop2h 50m
Mon 11/26:40 am -
Nonstop3h 05m
Deal found 8/10![Southwest logo]()
$165
This Delta deal was found by Cheapflights users on 8/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/97:05 am -
1 stop7h 26m
Sat 9/126:15 am -
1 stop5h 22m
Deal found 8/14![Delta logo]()
$217
This Southwest deal was found by Cheapflights users on 8/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/308:35 am -
Nonstop3h 05m
Wed 10/712:40 pm -
Nonstop3h 05m
Deal found 8/14![Southwest logo]()
$171
This Delta deal was found by Cheapflights users on 8/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/2310:44 am -
1 stop6h 52m
Mon 9/287:48 pm -
1 stop5h 11m
Deal found 8/10![Delta logo]()
$217
This Southwest deal was found by Cheapflights users on 8/12. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/2311:10 am -
1 stop5h 35m
Sat 9/265:55 am -
2 stops9h 20m
Deal found 8/12![Southwest logo]()
$177
This Delta deal was found by Cheapflights users on 8/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/296:13 pm -
1 stop5h 36m
Mon 11/26:30 pm -
1 stop6h 22m
Deal found 8/10![Delta logo]()
$217
This Southwest deal was found by Cheapflights users on 8/13. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/18:35 am -
Nonstop3h 05m
Tue 9/810:25 am -
1 stop7h 30m
Deal found 8/13![Southwest logo]()
$179
This Delta deal was found by Cheapflights users on 8/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2210:56 am -
1 stop6h 45m
Wed 8/265:30 am -
1 stop5h 29m
Deal found 8/10![Delta logo]()
$217
This Alaska Airlines deal was found by Cheapflights users on 8/13. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/52:22 pm -
2 stops26h 02m
Tue 9/86:29 pm -
2 stops19h 57m
Deal found 8/13![Alaska Airlines logo]()
$637
This United Airlines deal was found by Cheapflights users on 8/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/47:20 am -
1 stop5h 28m
Mon 9/77:00 am -
Nonstop3h 28m
Deal found 8/14![United Airlines logo]()
$299
This Southwest deal was found by Cheapflights users on 8/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/69:30 am -
2 stops10h 55m
Tue 9/810:40 am -
1 stop9h 05m
Deal found 8/10![Southwest logo]()
$205
This Southwest deal was found by Cheapflights users on 8/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/77:40 am -
Nonstop2h 55m
Wed 9/94:55 pm -
Nonstop3h 10m
Deal found 8/10![Southwest logo]()
$208
This Delta deal was found by Cheapflights users on 8/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/295:30 am -
1 stop4h 35m
Wed 9/25:30 am -
1 stop4h 53m
Deal found 8/12![Delta logo]()
$287
This Southwest deal was found by Cheapflights users on 8/13. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/176:35 pm -
Nonstop3h 00m
Sat 9/267:35 am -
1 stop10h 10m
Deal found 8/13![Southwest logo]()
$216
Last-minute flights from Chicago to Port St. LucieDiscover last-minute flight deals from Chicago to Port St. Lucie. Data last updated August 15, 2026 and is based on user searches.
Discover last-minute flight deals from Chicago to Port St. Lucie. Data last updated August 15, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 8/10. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/198:05 am -
Nonstop3h 23m
Mon 8/3110:18 am -
Nonstop3h 32m
Deal found 8/10![Frontier logo]()
$107
This Frontier deal was found by Cheapflights users on 8/10. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/198:05 am -
Nonstop3h 23m
Fri 8/2810:18 am -
Nonstop3h 32m
Deal found 8/10![Frontier logo]()
$118
This CheapOair deal was found by Cheapflights users on 8/10. 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.
Fri 8/217:00 am -
Nonstop3h 14m
Wed 8/2610:18 am -
Nonstop3h 32m
Deal found 8/10![Multiple Airlines logo]()
$123
This CheapOair deal was found by Cheapflights users on 8/10. 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.
Sat 8/227:00 am -
Nonstop3h 14m
Wed 8/2610:18 am -
Nonstop3h 32m
Deal found 8/10![Multiple Airlines logo]()
$120
This Southwest deal was found by Cheapflights users on 8/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/28:45 am -
2 stops7h 50m
Wed 9/97:20 am -
Nonstop3h 00m
Deal found 8/10![Southwest logo]()
$124
This Southwest deal was found by Cheapflights users on 8/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/96:10 pm -
Nonstop3h 00m
Wed 9/164:55 pm -
Nonstop3h 10m
Deal found 8/10![Southwest logo]()
$109
This Southwest deal was found by Cheapflights users on 8/13. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/116:20 pm -
Nonstop3h 00m
Sat 9/126:40 am -
Nonstop3h 00m
Deal found 8/13![Southwest logo]()
$126
This Southwest deal was found by Cheapflights users on 8/12. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/146:30 pm -
Nonstop3h 00m
Tue 9/157:20 am -
Nonstop3h 00m
Deal found 8/12![Southwest logo]()
$117
This Southwest deal was found by Cheapflights users on 8/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/147:40 am -
Nonstop2h 55m
Mon 9/216:15 pm -
1 stop4h 45m
Deal found 8/11![Southwest logo]()
$127
This Southwest deal was found by Cheapflights users on 8/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/175:55 am -
1 stop5h 30m
Tue 9/227:20 am -
Nonstop3h 00m
Deal found 8/10![Southwest logo]()
$123
This Expedia deal was found by Cheapflights users on 8/11. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/196:25 am -
1 stop7h 16m
Mon 9/286:45 am -
1 stop12h 06m
Deal found 8/11![Frontier logo]()
$118
This Frontier deal was found by Cheapflights users on 8/12. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/266:25 am -
1 stop7h 16m
Sat 10/36:45 am -
1 stop12h 06m
Deal found 8/12![Frontier logo]()
$119
One-way flights from Chicago to Port St. LucieSearch for one-way flight options from Chicago to Port St. Lucie. Find affordable one-way fares based on user searches. Data last updated August 15, 2026.
Search for one-way flight options from Chicago to Port St. Lucie. Find affordable one-way fares based on user searches. Data last updated August 15, 2026.
This Jetabroad deal was found by Cheapflights users on 8/13. 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 Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/811:50 am -
1 stop11h 54m
Deal found 8/13![Frontier logo]()
$67
This FlightHub deal was found by Cheapflights users on 8/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/51:59 pm -
1 stop9h 45m
Deal found 8/14![Frontier logo]()
$68
This Southwest deal was found by Cheapflights users on 8/13. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/86:30 am -
1 stop8h 15m
Deal found 8/13![Southwest logo]()
$69
This Super.com deal was found by Cheapflights users on 8/13. 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.
Fri 9/187:25 am -
1 stop8h 23m
Deal found 8/13![Frontier logo]()
$70
This Super.com deal was found by Cheapflights users on 8/14. 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.
Mon 9/146:25 am -
1 stop7h 32m
Deal found 8/14![Frontier logo]()
$70
This Priceline deal was found by Cheapflights users on 8/13. 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.
Fri 9/257:25 am -
1 stop8h 23m
Deal found 8/13![Frontier logo]()
$71
This Frontier deal was found by Cheapflights users on 8/13. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/26:25 am -
1 stop7h 32m
Deal found 8/13![Frontier logo]()
$71
This Kiwi.com deal was found by Cheapflights users on 8/13. 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.
Tue 9/87:05 am -
1 stop25h 07m
Deal found 8/13![Frontier logo]()
$72
This Frontier deal was found by Cheapflights users on 8/14. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/286:25 am -
1 stop7h 32m
Deal found 8/14![Frontier logo]()
$72
This JetBlue deal was found by Cheapflights users on 8/12. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/256:00 am -
Nonstop2h 59m
Deal found 8/12![JetBlue logo]()
$73
This Frontier deal was found by Cheapflights users on 8/13. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/106:25 am -
1 stop7h 09m
Deal found 8/13![Frontier logo]()
$73
This Southwest deal was found by Cheapflights users on 8/13. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/110:30 am -
2 stops8h 05m
Deal found 8/13![Southwest logo]()
$74
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 August 15, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $99 (Super.com) |
One-way from | $67 (Jetabroad) |
Popular in | June |
Cheapest in | October |
Average price | $229 |
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 August 15, 2026.
Use the filters below to find and compare flights from Chicago to Port St. Lucie that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
ChicagoFort Lauderdale
ORD Chicago O'Hare Intl - FLL Fort Lauderdale
ORDFLL
Chicago O'Hare Intl
Thu 9/17
12:49 pm-4:58 pm
Nonstop3h 09m
Fort Lauderdale
Tue 9/22
6:00 pm-8:36 pm
Nonstop3h 36m
$117
ChicagoFort Lauderdale
MDW Chicago Midway - FLL Fort Lauderdale
MDWFLL
Chicago Midway
Tue 9/29
1:00 pm-8:30 pm
2 stops6h 30m
Fort Lauderdale
Thu 10/1
6:35 am-8:45 am
Nonstop3h 10m
$132
ChicagoFort Lauderdale
MDW Chicago Midway - FLL Fort Lauderdale
MDWFLL
Chicago Midway
Sat 9/12
11:45 am-8:30 pm
2 stops7h 45m
Fort Lauderdale
Wed 9/16
6:35 pm-10:25 pm
1 stop4h 50m
$134
ChicagoFort Lauderdale
MDW Chicago Midway - FLL Fort Lauderdale
MDWFLL
Chicago Midway
Fri 9/11
7:30 am-1:40 pm
1 stop5h 10m
Fort Lauderdale
Tue 9/15
7:00 am-12:05 pm
2 stops6h 05m
$151
ChicagoFort Lauderdale
MDW Chicago Midway - FLL Fort Lauderdale
MDWFLL
Chicago Midway
Wed 9/23
8:35 am-12:40 pm
Nonstop3h 05m
Fort Lauderdale
Wed 9/30
7:20 am-9:20 am
Nonstop3h 00m
$157
Quickest round-trip
ChicagoFort Lauderdale
MDW Chicago Midway - FLL Fort Lauderdale
MDWFLL
Chicago Midway
Thu 10/29
7:40 pm-11:30 pm
Nonstop2h 50m
Fort Lauderdale
Mon 11/2
6:40 am-8:45 am
Nonstop3h 05m
$165
ChicagoFort Lauderdale
MDW Chicago Midway - FLL Fort Lauderdale
MDWFLL
Chicago Midway
Wed 9/30
8:35 am-12:40 pm
Nonstop3h 05m
Fort Lauderdale
Wed 10/7
12:40 pm-2:45 pm
Nonstop3h 05m
$171
ChicagoFort Lauderdale
MDW Chicago Midway - FLL Fort Lauderdale
MDWFLL
Chicago Midway
Wed 9/23
11:10 am-5:45 pm
1 stop5h 35m
Fort Lauderdale
Sat 9/26
5:55 am-2:15 pm
2 stops9h 20m
$177
ChicagoFort Lauderdale
MDW Chicago Midway - FLL Fort Lauderdale
MDWFLL
Chicago Midway
Tue 9/1
8:35 am-12:40 pm
Nonstop3h 05m
Fort Lauderdale
Tue 9/8
10:25 am-4:55 pm
1 stop7h 30m
$179
ChicagoFort Lauderdale
ORD Chicago O'Hare Intl - FLL Fort Lauderdale
ORDFLL
Chicago O'Hare Intl
Thu 9/10
7:05 am-3:08 pm
1 stop7h 03m
Fort Lauderdale
Thu 9/17
6:00 pm-8:36 pm
Nonstop3h 36m
$191
Showing 1-10 of 45 resultsSorted by cheapest first
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.
ORD-FLL
MDW-FLL
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
CHI-LU5
ORD-FLL
MDW-FLL
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 August 15, 2026.
Unlike in the afternoon, when flights are generally more expensive, you can save up to 8% on flights from Chicago to Port St. Lucie by exploring options for tickets in the morning.
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 August 15, 2026.
The most flights from CHI to LU5 are scheduled on a Thursday (73 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (51 on average).
How much does it cost to fly round-trip from Chicago to Port St. Lucie?
Airfare is below average for this route at the moment.
Chicago to Port St. Lucie flights typically cost between $151 and $317 in September.The cheapest round-trip price found within the last 5 days was $99 on Frontier (Sep 10-Sep 17).
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 August 8, 2026.
Travelers seeking maximum savings on their Chicago to Port St. Lucie flight should consider departing on Wednesday mornings when fares are most often at their lowest. Friday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
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 August 15, 2026.
Get a feel of what it's like to fly with Southwest,United Airlines, andAmerican 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.
Crew
8.6
Food
7.0
Boarding
8.1
Overall
8.0
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Crew
8.6
Food
7.0
Boarding
8.1
Overall
8.0
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Crew
8.6
Food
7.0
Boarding
8.1
Overall
8.0
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Crew
8.6
Food
7.0
Boarding
8.1
Overall
8.0
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Crew
8.6
Food
7.0
Boarding
8.1
Overall
8.0
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Crew
8.6
Food
7.0
Boarding
8.1
Overall
8.0
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
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.
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Alternative routes for Chicago to Port St. Lucie
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Complete your trip
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Search flights from Chicago to Port St. Lucie by cabin class
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Chicago and Port St. Lucie flights
Browse other Chicago and Port St. Lucie flight options. Last updated on August 15, 2026.
Other flights from Chicago
Browse through other flights departing from Chicago. Flights are based on user searches made on Cheapflights and were last updated on August 15, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 7 airlines flying from Chicago to Port St. Lucie
Discover the top 7 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 August 15, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$56 | Average$201 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$84 | Average$178 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$108 | Average$320 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$157 | Average$339 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$157 | Average$361 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$161 | Average$355 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$169 | Average$232 | FlexibilityNo cancel fee | On-time62% |