$89+ Cheap flights from Islip, NY (ISP) to Wisconsin
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 9/23. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — MKE
Sep 20 — Sep 271
Round-trip
1 adult, Economy
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Find cheap flights from Islip to Wisconsin 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
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Cheapest flights from Islip to WisconsinExplore the most affordable flight options available from Islip to Wisconsin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 21, 2026.
Explore the most affordable flight options available from Islip to Wisconsin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 21, 2026.
This Expedia deal was found by Cheapflights users on 8/18. 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 9/810:57 am -
1 stop13h 11m
Sat 9/123:50 pm -
1 stop24h 08m
Deal found 8/18![Frontier logo]()
$236
This CheapOair deal was found by Cheapflights users on 8/19. 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 10/75:43 pm -
1 stop14h 48m
Thu 10/85:54 pm -
1 stop23h 06m
Deal found 8/19![Frontier logo]()
$243
This CheapOair deal was found by Cheapflights users on 8/17. 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 9/165:43 pm -
1 stop17h 37m
Tue 9/223:50 pm -
1 stop24h 08m
Deal found 8/17![Frontier logo]()
$246
This Southwest deal was found by Cheapflights users on 8/18. 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 10/246:15 am -
1 stop7h 05m
Mon 10/266:20 am -
1 stop7h 10m
Deal found 8/18![Southwest logo]()
$260
This CheapOair deal was found by Cheapflights users on 8/19. 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.
Thu 10/156:25 pm -
1 stop14h 06m
Sun 10/185:54 pm -
1 stop23h 06m
Deal found 8/19![Frontier logo]()
$261
This Frontier deal was found by Cheapflights users on 8/16. 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 9/210:57 am -
1 stop13h 11m
Sun 9/67:44 pm -
1 stop13h 09m
Deal found 8/16![Frontier logo]()
$264
This CheapOair deal was found by Cheapflights users on 8/18. 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.
Thu 9/177:00 am -
1 stop7h 45m
Thu 9/2411:15 am -
1 stop28h 43m
Deal found 8/18![Multiple Airlines logo]()
$269
This CheapOair deal was found by Cheapflights users on 8/20. 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.
Thu 11/56:33 pm -
1 stop15h 13m
Sun 11/89:51 am -
1 stop6h 40m
Deal found 8/20![Frontier logo]()
$270
This Expedia deal was found by Cheapflights users on 8/19. 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.
Fri 10/166:55 pm -
1 stop13h 36m
Sun 10/189:00 am -
1 stop7h 30m
Deal found 8/19![Frontier logo]()
$273
This Frontier deal was found by Cheapflights users on 8/17. 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.
Tue 9/110:57 am -
1 stop13h 11m
Sat 9/57:44 pm -
1 stop13h 09m
Deal found 8/17![Frontier logo]()
$281
This CheapOair deal was found by Cheapflights users on 8/18. 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 9/210:57 am -
1 stop25h 16m
Sun 9/612:10 pm -
1 stop20h 43m
Deal found 8/18![Frontier logo]()
$282
This CheapOair deal was found by Cheapflights users on 8/19. 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 9/165:43 pm -
1 stop17h 37m
Wed 9/233:00 pm -
1 stop7h 22m
Deal found 8/19![Multiple Airlines logo]()
$287
Best flights from Islip to WisconsinDiscover carefully curated flight deals from Islip to Wisconsin that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 21, 2026.
Discover carefully curated flight deals from Islip to Wisconsin that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 21, 2026.
This JetBlue deal was found by Cheapflights users on 8/17. 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.
Tue 9/157:00 am -
1 stop7h 45m
Wed 9/163:00 pm -
1 stop7h 22m
Deal found 8/17![JetBlue logo]()
$291
This Frontier deal was found by Cheapflights users on 8/20. 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 9/410:57 am -
1 stop8h 28m
Mon 9/77:10 pm -
1 stop13h 43m
Deal found 8/20![Frontier logo]()
$320
This Southwest deal was found by Cheapflights users on 8/20. 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 10/33:50 pm -
1 stop6h 35m
Sun 10/45:00 pm -
1 stop5h 50m
Deal found 8/20![Southwest logo]()
$351
This Kiwi.com deal was found by Cheapflights users on 8/17. 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 10/65:43 pm -
1 stop23h 55m
Sun 10/119:33 am -
2 stops27h 49m
Deal found 8/17![Multiple Airlines logo]()
$458
This JetBlue deal was found by Cheapflights users on 8/17. 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.
Thu 9/107:00 am -
1 stop7h 45m
Wed 9/163:00 pm -
1 stop7h 22m
Deal found 8/17![JetBlue logo]()
$291
This JetBlue deal was found by Cheapflights users on 8/18. 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.
Wed 9/97:00 am -
1 stop7h 45m
Fri 9/113:00 pm -
1 stop7h 22m
Deal found 8/18![JetBlue logo]()
$291
This Southwest deal was found by Cheapflights users on 8/21. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/85:45 am -
1 stop7h 05m
Tue 1/126:25 am -
1 stop4h 30m
Deal found 8/21![Southwest logo]()
$353
This JetBlue deal was found by Cheapflights users on 8/20. 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.
Thu 9/107:00 am -
1 stop7h 45m
Sat 9/123:00 pm -
1 stop7h 22m
Deal found 8/20![JetBlue logo]()
$319
This Booking.com deal was found by Cheapflights users on 8/20. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2511:08 am -
3 stops23h 45m
Sun 9/276:00 pm -
2 stops16h 12m
Deal found 8/20![Breeze Airways logo]()
$804
This JetBlue deal was found by Cheapflights users on 8/19. 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.
Tue 9/157:00 am -
1 stop7h 45m
Thu 9/173:00 pm -
1 stop7h 22m
Deal found 8/19![JetBlue logo]()
$319
This Southwest deal was found by Cheapflights users on 8/17. 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 10/69:40 am -
2 stops9h 05m
Sat 10/105:35 am -
2 stops9h 35m
Deal found 8/17![Southwest logo]()
$418
This JetBlue deal was found by Cheapflights users on 8/20. 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.
Sat 9/267:00 am -
1 stop7h 45m
Wed 9/303:00 pm -
1 stop7h 22m
Deal found 8/20![JetBlue logo]()
$319
This Southwest deal was found by Cheapflights users on 8/20. 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 9/44:05 pm -
1 stop5h 40m
Tue 9/86:05 am -
1 stop7h 50m
Deal found 8/20![Southwest logo]()
$421
This Kiwi.com deal was found by Cheapflights users on 8/16. 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 9/305:43 pm -
1 stop24h 37m
Wed 10/1410:33 am -
2 stops29h 15m
Deal found 8/16![Multiple Airlines logo]()
$513
This JetBlue deal was found by Cheapflights users on 8/20. 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.
Thu 9/177:00 am -
1 stop7h 45m
Thu 9/243:00 pm -
1 stop7h 22m
Deal found 8/20![JetBlue logo]()
$319
This JetBlue deal was found by Cheapflights users on 8/20. 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.
Sat 9/197:00 am -
1 stop7h 45m
Sat 9/263:00 pm -
1 stop7h 22m
Deal found 8/20![JetBlue logo]()
$319
This Southwest deal was found by Cheapflights users on 8/18. 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 9/1810:20 am -
1 stop5h 40m
Sat 9/196:45 am -
1 stop6h 45m
Deal found 8/18![Southwest logo]()
$428
This Southwest deal was found by Cheapflights users on 8/18. 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 10/2311:00 am -
2 stops7h 50m
Sun 10/256:05 pm -
2 stops15h 15m
Deal found 8/18![Southwest logo]()
$443
This KAYAK deal was found by Cheapflights users on 8/18. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/147:00 am -
1 stop7h 45m
Thu 9/173:00 pm -
1 stop7h 22m
Deal found 8/18![JetBlue logo]()
$355
This Southwest deal was found by Cheapflights users on 8/18. 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 9/210:30 am -
1 stop6h 50m
Sun 9/68:15 am -
2 stops7h 20m
Deal found 8/18![Southwest logo]()
$459
This JetBlue deal was found by Cheapflights users on 8/20. 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.
Thu 9/247:00 am -
1 stop7h 45m
Tue 9/293:00 pm -
1 stop7h 22m
Deal found 8/20![JetBlue logo]()
$378
This Booking.com deal was found by Cheapflights users on 8/16. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/3012:00 pm -
2 stops30h 20m
Wed 10/1410:33 am -
2 stops29h 15m
Deal found 8/16![Breeze Airways logo]()
$883
This Southwest deal was found by Cheapflights users on 8/17. 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 10/66:05 am -
2 stops9h 25m
Sun 10/115:05 am -
2 stops11h 30m
Deal found 8/17![Southwest logo]()
$534
This KAYAK deal was found by Cheapflights users on 8/20. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/87:45 pm -
2 stops39h 08m
Sun 10/116:00 pm -
2 stops40h 20m
Deal found 8/20![Breeze Airways logo]()
$1,008
This Southwest deal was found by Cheapflights users on 8/18. 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 9/212:55 pm -
1 stop6h 10m
Fri 9/46:45 am -
1 stop8h 40m
Deal found 8/18![Southwest logo]()
$575
This KAYAK deal was found by Cheapflights users on 8/21. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/56:09 pm -
3 stops39h 16m
Mon 9/76:50 pm -
1 stop20h 57m
Deal found 8/21![Breeze Airways logo]()
$1,063
Last-minute flights from Islip to WisconsinDiscover last-minute flight deals from Islip to Wisconsin. Data last updated August 21, 2026 and is based on user searches.
Discover last-minute flight deals from Islip to Wisconsin. Data last updated August 21, 2026 and is based on user searches.
This CheapOair deal was found by Cheapflights users on 8/20. 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 8/2810:57 am -
1 stop13h 11m
Mon 9/143:50 pm -
1 stop24h 08m
Deal found 8/20![Frontier logo]()
$309
This Frontier deal was found by Cheapflights users on 8/17. 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 8/2910:57 am -
1 stop13h 11m
Wed 9/27:44 pm -
1 stop13h 09m
Deal found 8/17![Frontier logo]()
$301
This Frontier deal was found by Cheapflights users on 8/17. 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.
Tue 9/110:57 am -
1 stop13h 11m
Sat 9/57:44 pm -
1 stop13h 09m
Deal found 8/17![Frontier logo]()
$281
This Frontier deal was found by Cheapflights users on 8/16. 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 9/210:57 am -
1 stop13h 11m
Sun 9/67:44 pm -
1 stop13h 09m
Deal found 8/16![Frontier logo]()
$264
This CheapOair deal was found by Cheapflights users on 8/18. 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 9/210:57 am -
1 stop25h 16m
Sun 9/612:10 pm -
1 stop20h 43m
Deal found 8/18![Frontier logo]()
$282
This Frontier deal was found by Cheapflights users on 8/18. 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 9/510:57 am -
1 stop13h 11m
Mon 9/79:10 pm -
1 stop11h 43m
Deal found 8/18![Frontier logo]()
$300
This Expedia deal was found by Cheapflights users on 8/18. 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 9/810:57 am -
1 stop13h 11m
Sat 9/123:50 pm -
1 stop24h 08m
Deal found 8/18![Frontier logo]()
$236
This JetBlue deal was found by Cheapflights users on 8/18. 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.
Wed 9/97:00 am -
1 stop7h 45m
Fri 9/113:00 pm -
1 stop7h 22m
Deal found 8/18![JetBlue logo]()
$291
This CheapOair deal was found by Cheapflights users on 8/17. 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 9/165:43 pm -
1 stop17h 37m
Tue 9/223:50 pm -
1 stop24h 08m
Deal found 8/17![Frontier logo]()
$246
This CheapOair deal was found by Cheapflights users on 8/19. 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 9/165:43 pm -
1 stop17h 37m
Wed 9/233:00 pm -
1 stop7h 22m
Deal found 8/19![Multiple Airlines logo]()
$287
This CheapOair deal was found by Cheapflights users on 8/18. 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.
Thu 9/177:00 am -
1 stop7h 45m
Thu 9/2411:15 am -
1 stop28h 43m
Deal found 8/18![Multiple Airlines logo]()
$269
This CheapOair deal was found by Cheapflights users on 8/20. 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 9/195:43 pm -
1 stop17h 37m
Sat 9/263:00 pm -
1 stop7h 22m
Deal found 8/20![Multiple Airlines logo]()
$293
One-way flights from Islip to WisconsinSearch for one-way flight options from Islip to Wisconsin. Find affordable one-way fares based on user searches. Data last updated August 21, 2026.
Search for one-way flight options from Islip to Wisconsin. Find affordable one-way fares based on user searches. Data last updated August 21, 2026.
This CheapOair deal was found by Cheapflights users on 8/17. 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 9/235:43 pm -
1 stop16h 25m
Deal found 8/17![Frontier logo]()
$89
This Frontier deal was found by Cheapflights users on 8/17. 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 11/124:13 pm -
1 stop8h 37m
Deal found 8/17![Frontier logo]()
$113
This Frontier deal was found by Cheapflights users on 8/18. 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 10/106:25 pm -
1 stop14h 06m
Deal found 8/18![Frontier logo]()
$119
This Frontier deal was found by Cheapflights users on 8/16. 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 11/113:43 pm -
1 stop9h 07m
Deal found 8/16![Frontier logo]()
$123
This Frontier deal was found by Cheapflights users on 8/19. 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 10/166:55 pm -
1 stop13h 36m
Deal found 8/19![Frontier logo]()
$129
This Frontier deal was found by Cheapflights users on 8/19. 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 9/210:57 am -
1 stop13h 11m
Deal found 8/19![Frontier logo]()
$137
This JetBlue deal was found by Cheapflights users on 8/17. 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.
Thu 9/107:00 am -
1 stop7h 45m
Deal found 8/17![JetBlue logo]()
$146
This Frontier deal was found by Cheapflights users on 8/21. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/410:57 am -
1 stop8h 28m
Deal found 8/21![Frontier logo]()
$150
This Expedia deal was found by Cheapflights users on 8/18. 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.
Thu 9/310:57 am -
1 stop13h 11m
Deal found 8/18![Frontier logo]()
$156
This Kiwi.com deal was found by Cheapflights users on 8/17. 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 9/2312:00 pm -
2 stops22h 08m
Deal found 8/17![Multiple Airlines logo]()
$160
This JetBlue deal was found by Cheapflights users on 8/21. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/197:00 am -
1 stop7h 45m
Deal found 8/21![JetBlue logo]()
$160
This Frontier deal was found by Cheapflights users on 8/18. 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 8/3110:57 am -
1 stop13h 11m
Deal found 8/18![Frontier logo]()
$176
Find flight deals from Islip to Wisconsin
Keep the following information in mind while searching for Islip to Wisconsin flight deals. Data was last updated August 21, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $236 (Expedia) |
One-way from | $89 (CheapOair) |
Popular in | December |
Cheapest in | January |
Average price | $415 |
Cheapflights Fare Finder
Customize your flight search to find flights from Islip to Wisconsin 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 7,457,451 searches. Data last updated August 21, 2026.
Use the filters below to find and compare flights from Islip to Wisconsin that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
IslipChicago
ISP Islip Long Island - ORD Chicago O'Hare Intl
ISPORD
Islip Long Island
Tue 9/15
7:00 am-1:45 pm
1 stop7h 45m
Chicago O'Hare Intl
Wed 9/16
3:00 pm-11:22 pm
1 stop7h 22m
$291
IslipChicago
ISP Islip Long Island - ORD Chicago O'Hare Intl
ISPORD
Islip Long Island
Thu 9/10
7:00 am-1:45 pm
1 stop7h 45m
Chicago O'Hare Intl
Wed 9/16
3:00 pm-11:22 pm
1 stop7h 22m
$291
IslipChicago
ISP Islip Long Island - ORD Chicago O'Hare Intl
ISPORD
Islip Long Island
Wed 9/9
7:00 am-1:45 pm
1 stop7h 45m
Chicago O'Hare Intl
Fri 9/11
3:00 pm-11:22 pm
1 stop7h 22m
$291
IslipChicago
ISP Islip Long Island - ORD Chicago O'Hare Intl
ISPORD
Islip Long Island
Thu 9/10
7:00 am-1:45 pm
1 stop7h 45m
Chicago O'Hare Intl
Sat 9/12
3:00 pm-11:22 pm
1 stop7h 22m
$319
IslipChicago
ISP Islip Long Island - ORD Chicago O'Hare Intl
ISPORD
Islip Long Island
Tue 9/15
7:00 am-1:45 pm
1 stop7h 45m
Chicago O'Hare Intl
Thu 9/17
3:00 pm-11:22 pm
1 stop7h 22m
$319
IslipChicago
ISP Islip Long Island - ORD Chicago O'Hare Intl
ISPORD
Islip Long Island
Sat 9/26
7:00 am-1:45 pm
1 stop7h 45m
Chicago O'Hare Intl
Wed 9/30
3:00 pm-11:22 pm
1 stop7h 22m
$319
IslipChicago
ISP Islip Long Island - ORD Chicago O'Hare Intl
ISPORD
Islip Long Island
Thu 9/17
7:00 am-1:45 pm
1 stop7h 45m
Chicago O'Hare Intl
Thu 9/24
3:00 pm-11:22 pm
1 stop7h 22m
$319
IslipChicago
ISP Islip Long Island - ORD Chicago O'Hare Intl
ISPORD
Islip Long Island
Sat 9/19
7:00 am-1:45 pm
1 stop7h 45m
Chicago O'Hare Intl
Sat 9/26
3:00 pm-11:22 pm
1 stop7h 22m
$319
IslipMinneapolis
ISP Islip Long Island - MSP Minneapolis St Paul
ISPMSP
Islip Long Island
Fri 9/4
10:57 am-6:25 pm
1 stop8h 28m
Minneapolis St Paul
Mon 9/7
7:10 pm-9:53 am
1 stop13h 43m
$320
IslipMilwaukee
ISP Islip Long Island - MKE Milwaukee-Mitchell
ISPMKE
Islip Long Island
Sat 10/3
3:50 pm-9:25 pm
1 stop6h 35m
Milwaukee-Mitchell
Sun 10/4
5:00 pm-11:50 pm
1 stop5h 50m
$351
Showing 1-10 of 54 resultsSorted by cheapest first
Best time to book a flight from Islip to Wisconsin
Have a flexible travel schedule? Discover the best time to fly to Wisconsin from Islip with our price prediction graph.
ISP-ORD
ISP-MKE
ISP-MSP
ISP-MSN
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 Islip to Wisconsin
ISP-USWI
ISP-ORD
ISP-MKE
ISP-MSP
ISP-MSN
No data available for this route at this time. Please check back soon.
Related info for your journey
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