$214+ Cheap flights from Islip, NY (ISP) to Ontario
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 9/17. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — YYZ
Sep 26 — Oct 31
Round-trip
1 adult, Economy
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Find cheap flights from Islip to Ontario 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.Cheap flight deals from Islip to Ontario
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Best
Last-minute
One-way
Cheapest flights from Islip to OntarioExplore the most affordable flight options available from Islip to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 27, 2026.
Explore the most affordable flight options available from Islip to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 27, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/26. 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 stops32h 55m
Wed 9/307:45 am -
1 stop9h 13m
Deal found 8/26![Multiple Airlines logo]()
$393
This Kiwi.com deal was found by Cheapflights users on 8/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/265:43 pm -
1 stop29h 52m
Wed 9/307:45 am -
1 stop9h 13m
Deal found 8/23![Multiple Airlines logo]()
$425
This Kiwi.com deal was found by Cheapflights users on 8/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/86:25 pm -
1 stop25h 40m
Thu 10/157:45 am -
1 stop9h 45m
Deal found 8/23![Multiple Airlines logo]()
$493
This Kiwi.com deal was found by Cheapflights users on 8/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/75:43 pm -
1 stop23h 02m
Wed 10/147:45 am -
2 stops26h 32m
Deal found 8/23![Multiple Airlines logo]()
$529
This Kiwi.com deal was found by Cheapflights users on 8/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/55:43 pm -
1 stop23h 02m
Mon 10/122:20 pm -
2 stops45h 00m
Deal found 8/22![Multiple Airlines logo]()
$575
This Kiwi.com deal was found by Cheapflights users on 8/25. 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.
Fri 10/96:55 pm -
1 stop28h 40m
Fri 10/168:10 am -
2 stops27h 10m
Deal found 8/25![Multiple Airlines logo]()
$590
This Kiwi.com deal was found by Cheapflights users on 8/26. 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.
Sat 10/106:25 pm -
1 stop19h 20m
Sat 10/176:10 pm -
2 stops24h 41m
Deal found 8/26![Multiple Airlines logo]()
$592
This Kiwi.com deal was found by Cheapflights users on 8/25. 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.
Fri 10/96:55 pm -
1 stop18h 50m
Sun 10/119:50 am -
1 stop7h 40m
Deal found 8/25![Multiple Airlines logo]()
$653
This Expedia deal was found by Cheapflights users on 8/24. 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 10/86:00 am -
2 stops13h 32m
Thu 10/156:45 am -
2 stops14h 50m
Deal found 8/24![Multiple Airlines logo]()
$1,002
This Mytrip deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/119:05 am -
2 stops12h 07m
Sun 10/1810:35 am -
2 stops9h 10m
Deal found 8/27![Multiple Airlines logo]()
$1,018
This Orbitz deal was found by Cheapflights users on 8/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/107:00 am -
2 stops12h 32m
Sun 9/136:45 am -
2 stops16h 37m
Deal found 8/22![Multiple Airlines logo]()
$1,044
This Mytrip deal was found by Cheapflights users on 8/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/97:05 am -
2 stops14h 07m
Fri 10/166:30 am -
2 stops13h 15m
Deal found 8/25![Multiple Airlines logo]()
$1,075
Best flights from Islip to OntarioDiscover carefully curated flight deals from Islip to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 27, 2026.
Discover carefully curated flight deals from Islip to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 27, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/265:43 pm -
1 stop29h 52m
Wed 9/307:45 am -
1 stop9h 13m
Deal found 8/23![Multiple Airlines logo]()
$425
This Kiwi.com deal was found by Cheapflights users on 8/26. 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 9/235:43 pm -
1 stop22h 57m
Wed 9/307:45 am -
1 stop9h 13m
Deal found 8/26![Multiple Airlines logo]()
$428
This Kiwi.com deal was found by Cheapflights users on 8/26. 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.
Sat 10/106:25 pm -
1 stop19h 20m
Sat 10/174:50 pm -
1 stop24h 40m
Deal found 8/26![Multiple Airlines logo]()
$457
This Kiwi.com deal was found by Cheapflights users on 8/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/86:25 pm -
1 stop25h 40m
Thu 10/157:45 am -
1 stop9h 45m
Deal found 8/23![Multiple Airlines logo]()
$493
This Kiwi.com deal was found by Cheapflights users on 8/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/75:43 pm -
1 stop23h 02m
Wed 10/147:45 am -
2 stops26h 32m
Deal found 8/23![Multiple Airlines logo]()
$529
This Kiwi.com deal was found by Cheapflights users on 8/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/55:43 pm -
1 stop23h 02m
Mon 10/122:20 pm -
2 stops45h 00m
Deal found 8/22![Multiple Airlines logo]()
$575
This Kiwi.com deal was found by Cheapflights users on 8/25. 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.
Fri 10/96:55 pm -
1 stop28h 40m
Fri 10/168:10 am -
2 stops27h 10m
Deal found 8/25![Multiple Airlines logo]()
$590
This Kiwi.com deal was found by Cheapflights users on 8/25. 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.
Fri 10/96:55 pm -
1 stop18h 50m
Sun 10/119:50 am -
1 stop7h 40m
Deal found 8/25![Multiple Airlines logo]()
$653
This Expedia deal was found by Cheapflights users on 8/24. 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 10/86:00 am -
2 stops13h 32m
Thu 10/156:45 am -
2 stops14h 50m
Deal found 8/24![Multiple Airlines logo]()
$1,002
This Mytrip deal was found by Cheapflights users on 8/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/157:30 am -
2 stops14h 40m
Sun 11/229:45 am -
2 stops10h 16m
Deal found 8/23![Multiple Airlines logo]()
$1,018
This Mytrip deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/119:05 am -
2 stops12h 07m
Sun 10/1810:35 am -
2 stops9h 10m
Deal found 8/27![Multiple Airlines logo]()
$1,018
This Orbitz deal was found by Cheapflights users on 8/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/107:00 am -
2 stops12h 32m
Sun 9/136:45 am -
2 stops16h 37m
Deal found 8/22![Multiple Airlines logo]()
$1,044
This Mytrip deal was found by Cheapflights users on 8/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/97:05 am -
2 stops14h 07m
Fri 10/166:30 am -
2 stops13h 15m
Deal found 8/25![Multiple Airlines logo]()
$1,075
This Orbitz deal was found by Cheapflights users on 8/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/86:00 am -
2 stops13h 20m
Sun 10/116:45 am -
2 stops14h 50m
Deal found 8/22![Multiple Airlines logo]()
$1,086
This Expedia deal was found by Cheapflights users on 8/26. 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 1/155:50 am -
1 stop10h 35m
Mon 1/188:00 am -
1 stop13h 40m
Deal found 8/26![Multiple Airlines logo]()
$1,299
Last-minute flights from Islip to OntarioDiscover last-minute flight deals from Islip to Ontario. Data last updated August 27, 2026 and is based on user searches.
Discover last-minute flight deals from Islip to Ontario. Data last updated August 27, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 8/24. 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.
Fri 8/281:00 pm -
2 stops25h 05m
Mon 8/319:50 am -
1 stop8h 24m
Deal found 8/24![Multiple Airlines logo]()
$985
This Kiwi.com deal was found by Cheapflights users on 8/26. 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.
Fri 8/287:09 pm -
1 stop21h 36m
Sun 8/309:45 am -
2 stops9h 24m
Deal found 8/26![Multiple Airlines logo]()
$1,163
This Kiwi.com deal was found by Cheapflights users on 8/26. 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.
Sat 8/297:05 am -
1 stop4h 55m
Sun 8/3011:15 pm -
2 stops34h 38m
Deal found 8/26![Multiple Airlines logo]()
$1,200
This Kiwi.com deal was found by Cheapflights users on 8/25. 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 8/307:09 pm -
2 stops36h 51m
Sun 9/67:45 am -
1 stop10h 29m
Deal found 8/25![Multiple Airlines logo]()
$768
This Kiwi.com deal was found by Cheapflights users on 8/24. 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 8/312:16 pm -
1 stop7h 24m
Tue 9/17:45 am -
1 stop26h 08m
Deal found 8/24![Multiple Airlines logo]()
$825
This Orbitz deal was found by Cheapflights users on 8/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/107:00 am -
2 stops12h 32m
Sun 9/136:45 am -
2 stops16h 37m
Deal found 8/22![Multiple Airlines logo]()
$1,044
This Kiwi.com deal was found by Cheapflights users on 8/26. 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 stops32h 55m
Wed 9/307:45 am -
1 stop9h 13m
Deal found 8/26![Multiple Airlines logo]()
$393
This Kiwi.com deal was found by Cheapflights users on 8/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/265:43 pm -
1 stop29h 52m
Wed 9/307:45 am -
1 stop9h 13m
Deal found 8/23![Multiple Airlines logo]()
$425
One-way flights from Islip to OntarioSearch for one-way flight options from Islip to Ontario. Find affordable one-way fares based on user searches. Data last updated August 27, 2026.
Search for one-way flight options from Islip to Ontario. Find affordable one-way fares based on user searches. Data last updated August 27, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/24. 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 9/176:48 pm -
1 stop20h 07m
Deal found 8/24![Multiple Airlines logo]()
$214
This KAYAK deal was found by Cheapflights users on 8/26. 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.
Fri 1/85:50 am -
1 stop18h 05m
Deal found 8/26![Multiple Airlines logo]()
$423
This KAYAK deal was found by Cheapflights users on 8/26. 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 1/75:50 am -
1 stop18h 05m
Deal found 8/26![Multiple Airlines logo]()
$435
This Travelocity deal was found by Cheapflights users on 8/24. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/155:50 am -
1 stop10h 35m
Deal found 8/24![Multiple Airlines logo]()
$623
This KAYAK deal was found by Cheapflights users on 8/26. 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.
Sun 1/310:42 am -
1 stop24h 36m
Deal found 8/26![Multiple Airlines logo]()
$778
This KAYAK deal was found by Cheapflights users on 8/26. 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.
Tue 1/55:50 am -
1 stop11h 20m
Deal found 8/26![Multiple Airlines logo]()
$914
This KAYAK deal was found by Cheapflights users on 8/26. 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 1/46:00 am -
1 stop17h 55m
Deal found 8/26![Multiple Airlines logo]()
$938
This KAYAK deal was found by Cheapflights users on 8/26. 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 1/26:20 pm -
1 stop29h 35m
Deal found 8/26![Multiple Airlines logo]()
$1,389
Find flight deals from Islip to Ontario
Keep the following information in mind while searching for Islip to Ontario flight deals. Data was last updated August 27, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $393 (Kiwi.com) |
One-way from | $214 (Kiwi.com) |
Popular in | November |
Cheapest in | April |
Average price | $340 |
Cheapflights Fare Finder
Customize your flight search to find flights from Islip to Ontario 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 27, 2026.
Use the filters below to find and compare flights from Islip to Ontario that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
IslipToronto
ISP Islip Long Island - YYZ Toronto Pearson Intl
ISPYYZ
Islip Long Island
Sat 9/26
5:43 pm-11:35 pm
1 stop29h 52m
Toronto Pearson Intl
Wed 9/30
7:45 am-4:58 pm
1 stop9h 13m
$425
IslipToronto
ISP Islip Long Island - YYZ Toronto Pearson Intl
ISPYYZ
Islip Long Island
Wed 9/23
5:43 pm-4:40 pm
1 stop22h 57m
Toronto Pearson Intl
Wed 9/30
7:45 am-4:58 pm
1 stop9h 13m
$428
IslipToronto
ISP Islip Long Island - YYZ Toronto Pearson Intl
ISPYYZ
Islip Long Island
Sat 10/10
6:25 pm-1:45 pm
1 stop19h 20m
Toronto Pearson Intl
Sat 10/17
4:50 pm-5:30 pm
1 stop24h 40m
$457
IslipToronto
ISP Islip Long Island - YYZ Toronto Pearson Intl
ISPYYZ
Islip Long Island
Thu 10/8
6:25 pm-8:05 pm
1 stop25h 40m
Toronto Pearson Intl
Thu 10/15
7:45 am-5:30 pm
1 stop9h 45m
$493
IslipToronto
ISP Islip Long Island - YYZ Toronto Pearson Intl
ISPYYZ
Islip Long Island
Wed 10/7
5:43 pm-4:45 pm
1 stop23h 02m
Toronto Pearson Intl
Wed 10/14
7:45 am-10:17 am
2 stops26h 32m
$529
IslipToronto
ISP Islip Long Island - YYZ Toronto Pearson Intl
ISPYYZ
Islip Long Island
Mon 10/5
5:43 pm-4:45 pm
1 stop23h 02m
Toronto Pearson Intl
Mon 10/12
2:20 pm-11:20 am
2 stops45h 00m
$575
IslipToronto
ISP Islip Long Island - YYZ Toronto Pearson Intl
ISPYYZ
Islip Long Island
Fri 10/9
6:55 pm-11:35 pm
1 stop28h 40m
Toronto Pearson Intl
Fri 10/16
8:10 am-11:20 am
2 stops27h 10m
$590
IslipToronto
ISP Islip Long Island - YYZ Toronto Pearson Intl
ISPYYZ
Islip Long Island
Fri 10/9
6:55 pm-1:45 pm
1 stop18h 50m
Toronto Pearson Intl
Sun 10/11
9:50 am-5:30 pm
1 stop7h 40m
$653
IslipMontreal
ISP Islip Long Island - YUL Montreal Pierre Elliott Trudeau Intl
ISPYUL
Islip Long Island
Thu 10/8
6:00 am-7:32 pm
2 stops13h 32m
Montreal Pierre Elliott Trudeau Intl
Thu 10/15
6:45 am-9:35 pm
2 stops14h 50m
$1,002
IslipMontreal
ISP Islip Long Island - YUL Montreal Pierre Elliott Trudeau Intl
ISPYUL
Islip Long Island
Sun 11/15
7:30 am-10:10 pm
2 stops14h 40m
Montreal Pierre Elliott Trudeau Intl
Sun 11/22
9:45 am-8:01 pm
2 stops10h 16m
$1,018
Showing 1-10 of 22 resultsSorted by cheapest first
Best time to book a flight from Islip to Ontario
Have a flexible travel schedule? Discover the best time to fly to Ontario from Islip with our price prediction graph.
ISP-YYZ
ISP-YUL
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 Ontario
ISP-CAON
ISP-YYZ
ISP-YUL
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 Islip to Ontario. 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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