$128+ Cheap flights from Wisconsin to Islip, NY (ISP)
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 9/27. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — ISP
Aug 19 — Aug 261
Round-trip
1 adult, Economy
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Find cheap flights from Wisconsin to Islip 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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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Wisconsin to Islip
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Cheapest flights from Wisconsin to IslipExplore the most affordable flight options available from Wisconsin to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 20, 2026.
Explore the most affordable flight options available from Wisconsin to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 20, 2026.
This Frontier deal was found by Cheapflights users on 7/14. 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.
Thu 9/37:44 pm
ORD
- ISP
1 stop13h 09m
Frontier
Wed 9/94:13 pm
ISP
- ORD
1 stop8h 42m
Frontier
Deal found 7/14![Frontier logo]()
$252
This Frontier deal was found by Cheapflights users on 7/17. 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.
Mon 8/249:10 pm
ORD
- ISP
1 stop11h 43m
Frontier
Wed 8/2610:57 am
ISP
- ORD
1 stop13h 11m
Frontier
Deal found 7/17![Frontier logo]()
$258
This Frontier deal was found by Cheapflights users on 7/14. 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.
Fri 9/46:05 am
ORD
- ISP
1 stop11h 09m
Frontier
Wed 9/94:13 pm
ISP
- ORD
1 stop8h 42m
Frontier
Deal found 7/14![Frontier logo]()
$260
This Frontier deal was found by Cheapflights users on 7/18. 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.
Fri 8/289:10 pm
ORD
- ISP
1 stop11h 43m
Frontier
Mon 8/3110:57 am
ISP
- ORD
1 stop13h 11m
Frontier
Deal found 7/18![Frontier logo]()
$263
This Expedia deal was found by Cheapflights users on 7/16. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/216:05 am
ORD
- ISP
1 stop26h 48m
Frontier
Sun 8/2310:57 am
ISP
- ORD
1 stop27h 23m
Frontier
Deal found 7/16![Frontier logo]()
$268
This Frontier deal was found by Cheapflights users on 7/16. 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.
Sun 8/307:44 pm
ORD
- ISP
1 stop13h 09m
Frontier
Sun 9/610:57 am
ISP
- ORD
1 stop13h 11m
Frontier
Deal found 7/16![Frontier logo]()
$270
This Frontier deal was found by Cheapflights users on 7/18. 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.
Thu 9/37:17 pm
MSP
- ISP
1 stop13h 36m
Frontier
Sun 9/610:57 am
ISP
- MSP
1 stop8h 35m
Frontier
Deal found 7/18![Frontier logo]()
$272
This Frontier deal was found by Cheapflights users on 7/14. 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.
Thu 8/207:44 pm
ORD
- ISP
1 stop13h 09m
Frontier
Mon 8/2410:57 am
ISP
- ORD
1 stop13h 11m
Frontier
Deal found 7/14![Frontier logo]()
$278
This Frontier deal was found by Cheapflights users on 7/14. 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.
Fri 8/216:05 am
ORD
- ISP
1 stop11h 09m
Frontier
Mon 8/2410:57 am
ISP
- ORD
1 stop13h 11m
Frontier
Deal found 7/14![Frontier logo]()
$286
This Frontier deal was found by Cheapflights users on 7/18. 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.
Fri 9/47:17 pm
MSP
- ISP
1 stop13h 36m
Frontier
Sun 9/610:57 am
ISP
- MSP
1 stop8h 35m
Frontier
Deal found 7/18![Frontier logo]()
$288
This Southwest deal was found by Cheapflights users on 7/16. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/196:05 am
MKE
- ISP
1 stop7h 50m
Southwest
Sat 8/223:15 pm
ISP
- MKE
1 stop6h 20m
Southwest
Deal found 7/16![Southwest logo]()
$312
This Kiwi.com deal was found by Cheapflights users on 7/14. 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.
Mon 8/249:10 pm
ORD
- ISP
1 stop11h 43m
Multiple Airlines
Mon 8/311:00 pm
ISP
- ORD
2 stops24h 50m
Multiple Airlines
Deal found 7/14![Multiple Airlines logo]()
$315
Best flights from Wisconsin to IslipDiscover carefully curated flight deals from Wisconsin to Islip that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 20, 2026.
Discover carefully curated flight deals from Wisconsin to Islip that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 20, 2026.
This Frontier deal was found by Cheapflights users on 7/14. 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.
Tue 9/17:44 pm
ORD
- ISP
1 stop13h 09m
Frontier
Fri 9/410:57 am
ISP
- ORD
1 stop13h 11m
Frontier
Deal found 7/14![Frontier logo]()
$260
This Kiwi.com deal was found by Cheapflights users on 7/14. 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.
Mon 8/249:10 pm
ORD
- ISP
1 stop11h 43m
Multiple Airlines
Mon 8/311:00 pm
ISP
- ORD
2 stops24h 50m
Multiple Airlines
Deal found 7/14![Multiple Airlines logo]()
$315
This Southwest deal was found by Cheapflights users on 7/16. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1910:30 am
MKE
- ISP
2 stops9h 35m
Southwest
Sat 8/223:15 pm
ISP
- MKE
1 stop6h 20m
Southwest
Deal found 7/16![Southwest logo]()
$317
This JetBlue deal was found by Cheapflights users on 7/14. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/263:00 pm
ORD
- ISP
1 stop7h 22m
JetBlue
Wed 9/307:00 am
ISP
- ORD
1 stop8h 01m
JetBlue
Deal found 7/14![JetBlue logo]()
$379
This Frontier deal was found by Cheapflights users on 7/14. 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.
Fri 8/289:10 pm
ORD
- ISP
1 stop11h 43m
Frontier
Mon 8/3110:57 am
ISP
- ORD
1 stop13h 11m
Frontier
Deal found 7/14![Frontier logo]()
$260
This Frontier deal was found by Cheapflights users on 7/14. 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.
Fri 9/46:05 am
ORD
- ISP
1 stop11h 09m
Frontier
Mon 9/710:57 am
ISP
- ORD
1 stop13h 11m
Frontier
Deal found 7/14![Frontier logo]()
$260
This Trip.com deal was found by Cheapflights users on 7/16. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/277:44 pm
ORD
- ISP
1 stop13h 09m
Frontier
Fri 8/287:09 pm
ISP
- ORD
1 stop28h 59m
Frontier
Deal found 7/16![Frontier logo]()
$278
This Southwest deal was found by Cheapflights users on 7/15. 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 8/61:55 pm
MKE
- ISP
1 stop6h 35m
Southwest
Sat 8/293:15 pm
ISP
- MKE
1 stop6h 20m
Southwest
Deal found 7/15![Southwest logo]()
$352
This Frontier deal was found by Cheapflights users on 7/14. 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.
Fri 8/216:05 am
ORD
- ISP
1 stop11h 09m
Frontier
Mon 8/2410:57 am
ISP
- ORD
1 stop13h 11m
Frontier
Deal found 7/14![Frontier logo]()
$286
This Priceline deal was found by Cheapflights users on 7/17. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/253:00 pm
ORD
- ISP
1 stop7h 22m
Multiple Airlines
Mon 9/284:13 pm
ISP
- ORD
1 stop8h 42m
Multiple Airlines
Deal found 7/17![Multiple Airlines logo]()
$384
This JetBlue deal was found by Cheapflights users on 7/15. 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 9/93:00 pm
ORD
- ISP
1 stop7h 22m
JetBlue
Mon 9/147:00 am
ISP
- ORD
1 stop8h 01m
JetBlue
Deal found 7/15![JetBlue logo]()
$399
This Trip.com deal was found by Cheapflights users on 7/19. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/710:33 am
MSN
- ISP
2 stops29h 10m
Breeze Airways
Sun 10/117:45 pm
ISP
- MSN
3 stops39h 05m
Breeze Airways
Deal found 7/19![Breeze Airways logo]()
$854
This JetBlue deal was found by Cheapflights users on 7/15. 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 9/103:00 pm
ORD
- ISP
1 stop7h 22m
JetBlue
Mon 9/147:00 am
ISP
- ORD
1 stop8h 01m
JetBlue
Deal found 7/15![JetBlue logo]()
$399
This Southwest deal was found by Cheapflights users on 7/18. 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 8/156:45 am
MSP
- ISP
1 stop6h 45m
Southwest
Sat 8/2211:55 am
ISP
- MSP
1 stop7h 50m
Southwest
Deal found 7/18![Southwest logo]()
$411
This JetBlue deal was found by Cheapflights users on 7/15. 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 9/163:00 pm
ORD
- ISP
1 stop7h 22m
JetBlue
Thu 9/177:00 am
ISP
- ORD
1 stop8h 01m
JetBlue
Deal found 7/15![JetBlue logo]()
$443
This Kiwi.com deal was found by Cheapflights users on 7/16. 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.
Sun 8/96:35 am
MSP
- ISP
2 stops26h 18m
Multiple Airlines
Thu 8/136:46 pm
ISP
- MSP
1 stop26h 45m
Multiple Airlines
Deal found 7/16![Multiple Airlines logo]()
$494
This Southwest deal was found by Cheapflights users on 7/18. 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.
Sun 8/167:00 am
MSP
- ISP
1 stop10h 45m
Southwest
Mon 8/244:05 pm
ISP
- MSP
1 stop7h 00m
Southwest
Deal found 7/18![Southwest logo]()
$457
This Kiwi.com deal was found by Cheapflights users on 7/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/13:19 pm
ATW
- ISP
1 stop17h 14m
Multiple Airlines
Sun 10/47:31 pm
ISP
- ATW
2 stops22h 08m
Multiple Airlines
Deal found 7/20![Multiple Airlines logo]()
$498
This Southwest deal was found by Cheapflights users on 7/16. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/158:35 am
MKE
- ISP
2 stops9h 55m
Southwest
Sun 8/166:20 am
ISP
- MKE
2 stops8h 15m
Southwest
Deal found 7/16![Southwest logo]()
$463
This Southwest deal was found by Cheapflights users on 7/18. 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.
Sun 8/26:55 am
MSP
- ISP
1 stop7h 00m
Southwest
Thu 8/64:05 pm
ISP
- MSP
1 stop7h 00m
Southwest
Deal found 7/18![Southwest logo]()
$507
This Southwest deal was found by Cheapflights users on 7/18. 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.
Sun 8/26:55 am
MSP
- ISP
1 stop7h 00m
Southwest
Fri 8/74:05 pm
ISP
- MSP
1 stop7h 00m
Southwest
Deal found 7/18![Southwest logo]()
$507
This Southwest deal was found by Cheapflights users on 7/19. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/512:25 pm
MSP
- ISP
2 stops7h 40m
Southwest
Mon 8/104:05 pm
ISP
- MSP
1 stop7h 00m
Southwest
Deal found 7/19![Southwest logo]()
$522
This KAYAK deal was found by Cheapflights users on 7/19. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/86:00 pm
MSN
- ISP
2 stops40h 20m
Breeze Airways
Sun 10/117:45 pm
ISP
- MSN
2 stops39h 05m
Breeze Airways
Deal found 7/19![Breeze Airways logo]()
$938
This FlightHub deal was found by Cheapflights users on 7/17. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/199:36 am
MKE
- ISP
2 stops22h 29m
Multiple Airlines
Sat 8/229:05 am
ISP
- MKE
1 stop24h 39m
Multiple Airlines
Deal found 7/17![Multiple Airlines logo]()
$796
This FlightHub deal was found by Cheapflights users on 7/19. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/199:36 am
MKE
- ISP
2 stops12h 52m
JetBlue
Sat 8/221:50 pm
ISP
- MKE
2 stops19h 54m
JetBlue
Deal found 7/19![JetBlue logo]()
$828
This FlightHub deal was found by Cheapflights users on 7/19. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/49:36 am
MKE
- ISP
1 stop10h 23m
Multiple Airlines
Tue 9/87:31 am
ISP
- MKE
1 stop28h 04m
Multiple Airlines
Deal found 7/19![Multiple Airlines logo]()
$857
This United deal was found by Cheapflights users on 7/16. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/155:00 pm
ATW
- ISP
2 stops18h 30m
Multiple Airlines
Sun 8/165:34 pm
ISP
- ATW
2 stops24h 23m
Multiple Airlines
Deal found 7/16![Multiple Airlines logo]()
$1,134
This United deal was found by Cheapflights users on 7/16. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/156:25 am
GRB
- ISP
2 stops29h 05m
Multiple Airlines
Sun 8/165:34 pm
ISP
- GRB
2 stops30h 45m
Multiple Airlines
Deal found 7/16![Multiple Airlines logo]()
$1,194
Last-minute flights from Wisconsin to IslipDiscover last-minute flight deals from Wisconsin to Islip. Data last updated July 20, 2026 and is based on user searches.
Discover last-minute flight deals from Wisconsin to Islip. Data last updated July 20, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 7/15. 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 8/61:55 pm
MKE
- ISP
1 stop6h 35m
Southwest
Sat 8/293:15 pm
ISP
- MKE
1 stop6h 20m
Southwest
Deal found 7/15![Southwest logo]()
$352
This Kiwi.com deal was found by Cheapflights users on 7/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/115:13 pm
ORD
- ISP
1 stop15h 40m
Frontier
Wed 8/1910:57 am
ISP
- ORD
1 stop13h 11m
Frontier
Deal found 7/18![Frontier logo]()
$393
This Southwest deal was found by Cheapflights users on 7/16. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/196:05 am
MKE
- ISP
1 stop7h 50m
Southwest
Sat 8/223:15 pm
ISP
- MKE
1 stop6h 20m
Southwest
Deal found 7/16![Southwest logo]()
$312
This Frontier deal was found by Cheapflights users on 7/15. 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 8/207:44 pm
ORD
- ISP
1 stop13h 09m
Frontier
Thu 8/2710:57 am
ISP
- ORD
1 stop13h 11m
Frontier
Deal found 7/15![Frontier logo]()
$252
This Frontier deal was found by Cheapflights users on 7/14. 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.
Thu 8/207:44 pm
ORD
- ISP
1 stop13h 09m
Frontier
Mon 8/2410:57 am
ISP
- ORD
1 stop13h 11m
Frontier
Deal found 7/14![Frontier logo]()
$278
This Expedia deal was found by Cheapflights users on 7/16. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/216:05 am
ORD
- ISP
1 stop26h 48m
Frontier
Sun 8/2310:57 am
ISP
- ORD
1 stop27h 23m
Frontier
Deal found 7/16![Frontier logo]()
$268
This Frontier deal was found by Cheapflights users on 7/14. 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.
Fri 8/216:05 am
ORD
- ISP
1 stop11h 09m
Frontier
Mon 8/2410:57 am
ISP
- ORD
1 stop13h 11m
Frontier
Deal found 7/14![Frontier logo]()
$286
This Frontier deal was found by Cheapflights users on 7/17. 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.
Mon 8/249:10 pm
ORD
- ISP
1 stop11h 43m
Frontier
Wed 8/2610:57 am
ISP
- ORD
1 stop13h 11m
Frontier
Deal found 7/17![Frontier logo]()
$258
This Kiwi.com deal was found by Cheapflights users on 7/14. 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.
Mon 8/249:10 pm
ORD
- ISP
1 stop11h 43m
Multiple Airlines
Mon 8/311:00 pm
ISP
- ORD
2 stops24h 50m
Multiple Airlines
Deal found 7/14![Multiple Airlines logo]()
$315
This Frontier deal was found by Cheapflights users on 7/15. 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 8/277:44 pm
ORD
- ISP
1 stop13h 09m
Frontier
Sun 8/3010:57 am
ISP
- ORD
1 stop13h 11m
Frontier
Deal found 7/15![Frontier logo]()
$260
This Frontier deal was found by Cheapflights users on 7/18. 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.
Fri 8/289:10 pm
ORD
- ISP
1 stop11h 43m
Frontier
Mon 8/3110:57 am
ISP
- ORD
1 stop13h 11m
Frontier
Deal found 7/18![Frontier logo]()
$263
This Frontier deal was found by Cheapflights users on 7/16. 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.
Sun 8/307:44 pm
ORD
- ISP
1 stop13h 09m
Frontier
Sun 9/610:57 am
ISP
- ORD
1 stop13h 11m
Frontier
Deal found 7/16![Frontier logo]()
$270
One-way flights from Wisconsin to IslipSearch for one-way flight options from Wisconsin to Islip. Find affordable one-way fares based on user searches. Data last updated July 20, 2026.
Search for one-way flight options from Wisconsin to Islip. Find affordable one-way fares based on user searches. Data last updated July 20, 2026.
This Orbitz deal was found by Cheapflights users on 7/19. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/278:10 pm
MKE
- ISP
1 stop12h 23m
Frontier
Deal found 7/19![Frontier logo]()
$128
This Frontier deal was found by Cheapflights users on 7/15. 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 8/246:05 am
ORD
- ISP
1 stop11h 09m
Frontier
Deal found 7/15![Frontier logo]()
$132
This Frontier deal was found by Cheapflights users on 7/16. 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.
Thu 8/207:17 pm
MSP
- ISP
1 stop13h 36m
Frontier
Deal found 7/16![Frontier logo]()
$134
This Frontier deal was found by Cheapflights users on 7/18. 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.
Thu 8/207:44 pm
ORD
- ISP
1 stop13h 09m
Frontier
Deal found 7/18![Frontier logo]()
$135
This Frontier deal was found by Cheapflights users on 7/15. 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 8/237:44 pm
ORD
- ISP
1 stop13h 09m
Frontier
Deal found 7/15![Frontier logo]()
$140
This Southwest deal was found by Cheapflights users on 7/19. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/267:30 am
MKE
- ISP
1 stop6h 00m
Southwest
Deal found 7/19![Southwest logo]()
$150
This Southwest deal was found by Cheapflights users on 7/16. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/276:25 am
MKE
- ISP
1 stop9h 00m
Southwest
Deal found 7/16![Southwest logo]()
$162
This Kiwi.com deal was found by Cheapflights users on 7/14. 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.
Thu 10/87:45 am
ORD
- ISP
2 stops25h 43m
Multiple Airlines
Deal found 7/14![Multiple Airlines logo]()
$179
This Trip.com deal was found by Cheapflights users on 7/17. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/65:13 pm
ORD
- ISP
1 stop15h 40m
Frontier
Deal found 7/17![Frontier logo]()
$181
This Southwest deal was found by Cheapflights users on 7/18. 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.
Tue 8/116:00 am
MSP
- ISP
1 stop5h 10m
Southwest
Deal found 7/18![Southwest logo]()
$188
This Kiwi.com deal was found by Cheapflights users on 7/14. 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.
Thu 10/84:49 pm
ORD
- ISP
1 stop15h 44m
Frontier
Deal found 7/14![Frontier logo]()
$195
This Frontier deal was found by Cheapflights users on 7/17. 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 11/128:00 am
ORD
- ISP
1 stop9h 51m
Frontier
Deal found 7/17![Frontier logo]()
$197
Find flight deals from Wisconsin to Islip
Keep the following information in mind while searching for Wisconsin to Islip flight deals. Data was last updated July 20, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $252 (Frontier) |
One-way from | $124 (Southwest) |
Popular in | November |
Cheapest in | January |
Average price | $406 |
Cheapflights Fare Finder
Customize your flight search to find flights from Wisconsin to Islip 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 July 20, 2026.
Use the filters below to find and compare flights from Wisconsin to Islip that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
ChicagoIslip
ORD - ISP
ORDISP
Chicago O'Hare Intl
Tue 9/1
7:44 pm-9:53 am
1 stop13h 09m
Islip Long Island
Fri 9/4
10:57 am-11:08 pm
1 stop13h 11m
$260
ChicagoIslip
ORD - ISP
ORDISP
Chicago O'Hare Intl
Fri 8/28
9:10 pm-9:53 am
1 stop11h 43m
Islip Long Island
Mon 8/31
10:57 am-11:08 pm
1 stop13h 11m
$260
ChicagoIslip
ORD - ISP
ORDISP
Chicago O'Hare Intl
Fri 9/4
6:05 am-6:14 pm
1 stop11h 09m
Islip Long Island
Mon 9/7
10:57 am-11:08 pm
1 stop13h 11m
$260
ChicagoIslip
ORD - ISP
ORDISP
Chicago O'Hare Intl
Thu 8/27
7:44 pm-9:53 am
1 stop13h 09m
Islip Long Island
Fri 8/28
7:09 pm-11:08 pm
1 stop28h 59m
$278
ChicagoIslip
ORD - ISP
ORDISP
Chicago O'Hare Intl
Fri 8/21
6:05 am-6:14 pm
1 stop11h 09m
Islip Long Island
Mon 8/24
10:57 am-11:08 pm
1 stop13h 11m
$286
ChicagoIslip
ORD - ISP
ORDISP
Chicago O'Hare Intl
Mon 8/24
9:10 pm-9:53 am
1 stop11h 43m
Islip Long Island
Mon 8/31
1:00 pm-12:50 pm
2 stops24h 50m
$315
MilwaukeeIslip
MKE - ISP
MKEISP
Milwaukee-Mitchell
Wed 8/19
10:30 am-9:05 pm
2 stops9h 35m
Islip Long Island
Sat 8/22
3:15 pm-8:35 pm
1 stop6h 20m
$317
Quickest round-trip
MilwaukeeIslip
MKE - ISP
MKEISP
Milwaukee-Mitchell
Thu 8/6
1:55 pm-9:30 pm
1 stop6h 35m
Islip Long Island
Sat 8/29
3:15 pm-8:35 pm
1 stop6h 20m
$352
ChicagoIslip
ORD - ISP
ORDISP
Chicago O'Hare Intl
Sat 9/26
3:00 pm-11:22 pm
1 stop7h 22m
Islip Long Island
Wed 9/30
7:00 am-2:01 pm
1 stop8h 01m
$379
ChicagoIslip
ORD - ISP
ORDISP
Chicago O'Hare Intl
Fri 9/25
3:00 pm-11:22 pm
1 stop7h 22m
Islip Long Island
Mon 9/28
4:13 pm-11:55 pm
1 stop8h 42m
$384
Showing 1-10 of 50 resultsSorted by cheapest first
Best time to book a flight from Wisconsin to Islip
Have a flexible travel schedule? Discover the best time to fly to Islip from Wisconsin with our price prediction graph.
MKE-ISP
ORD-ISP
MSP-ISP
MSN-ISP
ATW-ISP
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 Wisconsin to Islip
USWI-ISP
MKE-ISP
ORD-ISP
MSP-ISP
MSN-ISP
No data available for this route at this time. Please check back soon.
Related info for your journey
Find useful and relevant information for your journey from Wisconsin to Islip. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Islip?
Book flights to Islip if you plan to visit one of these locationsRiverhead
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Other flights to Islip
Explore flights to Islip departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on July 20, 2026.
Wisconsin and Islip flights
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Top airline flying from Wisconsin to Islip
Discover the top airline that operate flights from Wisconsin to Islip. 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 July 20, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$232 | Average$379 | FlexibilityNo cancel fee | On-time63% |