$143+ Cheap flights from Ontario (ONT) to LaGuardia, NY (LGA)
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 5/27. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — LGA
May 29 — Jun 51
Round-trip
1 adult, Economy
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Find cheap flights from Ontario to LaGuardia 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 Ontario to LaGuardiaExplore the most affordable flight options available from Ontario to LaGuardia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 29, 2026.
Explore the most affordable flight options available from Ontario to LaGuardia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 29, 2026.
This Delta deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/2510:59 pm
ONT
- LGA
1 stop7h 46m
Delta
Sun 8/306:00 am
LGA
- ONT
1 stop8h 04m
Delta
Deal found 4/28![Delta logo]()
$281
This Delta deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/2610:00 pm
ONT
- LGA
1 stop8h 45m
Delta
Thu 5/282:46 pm
LGA
- ONT
2 stops11h 48m
Delta
Deal found 4/28![Delta logo]()
$286
This United Airlines deal was found by Cheapflights users on 4/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/55:00 am
ONT
- LGA
1 stop7h 47m
United Airlines
Mon 5/115:15 pm
LGA
- ONT
1 stop8h 20m
United Airlines
Deal found 4/25![United Airlines logo]()
$287
This Delta deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1710:59 pm
ONT
- LGA
1 stop8h 48m
Delta
Wed 9/24:00 pm
LGA
- ONT
1 stop8h 56m
Delta
Deal found 4/28![Delta logo]()
$288
This Delta deal was found by Cheapflights users on 4/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1210:00 pm
ONT
- LGA
2 stops14h 01m
Delta
Tue 5/1910:45 am
LGA
- ONT
2 stops10h 51m
Delta
Deal found 4/27![Delta logo]()
$291
This United Airlines deal was found by Cheapflights users on 4/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/46:00 am
ONT
- LGA
1 stop7h 38m
United Airlines
Mon 5/115:15 pm
LGA
- ONT
1 stop8h 20m
United Airlines
Deal found 4/26![United Airlines logo]()
$292
This Delta deal was found by Cheapflights users on 4/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/810:00 pm
ONT
- LGA
1 stop7h 10m
Delta
Tue 7/144:59 pm
LGA
- ONT
2 stops9h 49m
Delta
Deal found 4/27![Delta logo]()
$293
This Kiwi.com deal was found by Cheapflights users on 4/29. 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 5/148:06 pm
ONT
- LGA
1 stop22h 54m
Multiple Airlines
Mon 5/1810:55 pm
LGA
- ONT
2 stops19h 49m
Multiple Airlines
Deal found 4/29![Multiple Airlines logo]()
$294
This Delta deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/110:00 pm
ONT
- LGA
1 stop7h 14m
Delta
Thu 6/46:00 am
LGA
- ONT
1 stop7h 57m
Delta
Deal found 4/29![Delta logo]()
$297
This American Airlines deal was found by Cheapflights users on 4/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/2310:00 pm
ONT
- LGA
1 stop8h 00m
American Airlines
Fri 5/298:35 am
LGA
- ONT
1 stop7h 53m
American Airlines
Deal found 4/25![American Airlines logo]()
$298
This American Airlines deal was found by Cheapflights users on 4/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/1811:59 pm
ONT
- LGA
1 stop7h 31m
American Airlines
Wed 5/276:46 pm
LGA
- ONT
1 stop8h 13m
American Airlines
Deal found 4/29![American Airlines logo]()
$301
This Delta deal was found by Cheapflights users on 4/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/410:15 pm
ONT
- LGA
1 stop8h 24m
Delta
Tue 5/126:00 am
LGA
- ONT
1 stop7h 57m
Delta
Deal found 4/27![Delta logo]()
$302
Best flights from Ontario to LaGuardiaDiscover carefully curated flight deals from Ontario to LaGuardia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 29, 2026.
Discover carefully curated flight deals from Ontario to LaGuardia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 29, 2026.
This Delta deal was found by Cheapflights users on 4/26. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/712:00 pm
ONT
- LGA
1 stop7h 42m
Delta
Wed 10/143:00 pm
LGA
- ONT
2 stops11h 48m
Delta
Deal found 4/26![Delta logo]()
$324
This Southwest deal was found by Cheapflights users on 4/27. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/912:50 pm
ONT
- LGA
1 stop7h 05m
Southwest
Tue 7/141:25 pm
LGA
- ONT
1 stop12h 10m
Southwest
Deal found 4/27![Southwest logo]()
$326
This United Airlines deal was found by Cheapflights users on 4/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/156:30 am
ONT
- LGA
1 stop9h 52m
United Airlines
Wed 7/225:25 pm
LGA
- ONT
1 stop8h 26m
United Airlines
Deal found 4/24![United Airlines logo]()
$347
This Delta deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/245:10 pm
ONT
- LGA
2 stops12h 37m
Delta
Wed 7/296:00 am
LGA
- ONT
1 stop7h 38m
Delta
Deal found 4/29![Delta logo]()
$343
This Delta deal was found by Cheapflights users on 4/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/1110:00 pm
ONT
- LGA
1 stop7h 14m
Delta
Tue 5/124:00 pm
LGA
- ONT
1 stop8h 48m
Delta
Deal found 4/27![Delta logo]()
$359
This United Airlines deal was found by Cheapflights users on 4/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/95:00 am
ONT
- LGA
1 stop7h 47m
United Airlines
Mon 5/113:20 pm
LGA
- ONT
1 stop10h 15m
United Airlines
Deal found 4/26![United Airlines logo]()
$397
This United Airlines deal was found by Cheapflights users on 4/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/105:45 am
ONT
- LGA
1 stop10h 19m
United Airlines
Mon 8/172:00 pm
LGA
- ONT
1 stop10h 59m
United Airlines
Deal found 4/24![United Airlines logo]()
$398
This Southwest deal was found by Cheapflights users on 4/25. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/1211:55 pm
ONT
- LGA
1 stop8h 25m
Southwest
Thu 7/161:25 pm
LGA
- ONT
2 stops11h 45m
Southwest
Deal found 4/25![Southwest logo]()
$438
This Delta deal was found by Cheapflights users on 4/26. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1812:00 pm
ONT
- LGA
1 stop7h 50m
Delta
Mon 8/244:00 pm
LGA
- ONT
1 stop8h 56m
Delta
Deal found 4/26![Delta logo]()
$388
This Delta deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/55:05 pm
ONT
- LGA
2 stops14h 42m
Delta
Sat 9/126:00 am
LGA
- ONT
1 stop8h 04m
Delta
Deal found 4/28![Delta logo]()
$393
This Delta deal was found by Cheapflights users on 4/26. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/2410:00 pm
ONT
- LGA
1 stop9h 41m
Delta
Tue 8/46:00 am
LGA
- ONT
1 stop7h 38m
Delta
Deal found 4/26![Delta logo]()
$398
This Delta deal was found by Cheapflights users on 4/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/1210:00 pm
ONT
- LGA
1 stop7h 10m
Delta
Thu 7/161:59 pm
LGA
- ONT
1 stop10h 51m
Delta
Deal found 4/25![Delta logo]()
$399
Last-minute flights from Ontario to LaGuardiaDiscover last-minute flight deals from Ontario to LaGuardia. Data last updated April 29, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to LaGuardia. Data last updated April 29, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 4/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/46:00 am
ONT
- LGA
1 stop7h 38m
United Airlines
Mon 5/115:15 pm
LGA
- ONT
1 stop8h 20m
United Airlines
Deal found 4/26![United Airlines logo]()
$292
This Delta deal was found by Cheapflights users on 4/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/410:15 pm
ONT
- LGA
1 stop9h 27m
Delta
Mon 5/1111:00 am
LGA
- ONT
1 stop10h 36m
Delta
Deal found 4/27![Delta logo]()
$302
This United Airlines deal was found by Cheapflights users on 4/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/55:00 am
ONT
- LGA
1 stop7h 47m
United Airlines
Mon 5/115:15 pm
LGA
- ONT
1 stop8h 20m
United Airlines
Deal found 4/25![United Airlines logo]()
$287
This Delta deal was found by Cheapflights users on 4/26. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/1010:00 pm
ONT
- LGA
1 stop7h 14m
Delta
Tue 5/126:00 am
LGA
- ONT
1 stop7h 57m
Delta
Deal found 4/26![Delta logo]()
$288
This Delta deal was found by Cheapflights users on 4/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/1110:00 pm
ONT
- LGA
1 stop7h 14m
Delta
Tue 5/121:55 pm
LGA
- ONT
2 stops12h 39m
Delta
Deal found 4/27![Delta logo]()
$293
This Delta deal was found by Cheapflights users on 4/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1210:00 pm
ONT
- LGA
2 stops14h 01m
Delta
Tue 5/1910:45 am
LGA
- ONT
2 stops10h 51m
Delta
Deal found 4/27![Delta logo]()
$291
This Kiwi.com deal was found by Cheapflights users on 4/29. 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 5/148:06 pm
ONT
- LGA
1 stop22h 54m
Multiple Airlines
Mon 5/1810:55 pm
LGA
- ONT
2 stops19h 49m
Multiple Airlines
Deal found 4/29![Multiple Airlines logo]()
$294
This American Airlines deal was found by Cheapflights users on 4/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/1811:59 pm
ONT
- LGA
1 stop7h 31m
American Airlines
Wed 5/276:46 pm
LGA
- ONT
1 stop8h 13m
American Airlines
Deal found 4/29![American Airlines logo]()
$301
This American Airlines deal was found by Cheapflights users on 4/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/2310:00 pm
ONT
- LGA
1 stop8h 00m
American Airlines
Fri 5/298:35 am
LGA
- ONT
1 stop7h 53m
American Airlines
Deal found 4/25![American Airlines logo]()
$298
This Delta deal was found by Cheapflights users on 4/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/2610:00 pm
ONT
- LGA
1 stop8h 45m
Delta
Tue 6/22:59 pm
LGA
- ONT
1 stop9h 49m
Delta
Deal found 4/25![Delta logo]()
$281
This Delta deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/2610:00 pm
ONT
- LGA
1 stop8h 45m
Delta
Thu 5/282:46 pm
LGA
- ONT
2 stops11h 48m
Delta
Deal found 4/28![Delta logo]()
$286
One-way flights from Ontario to LaGuardiaSearch for one-way flight options from Ontario to LaGuardia. Find affordable one-way fares based on user searches. Data last updated April 29, 2026.
Search for one-way flight options from Ontario to LaGuardia. Find affordable one-way fares based on user searches. Data last updated April 29, 2026.
This Super.com deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/278:30 am
ONT
- LGA
1 stop10h 30m
Frontier
Deal found 4/29![Frontier logo]()
$143
This Super.com deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/58:30 am
ONT
- LGA
1 stop10h 30m
Frontier
Deal found 4/29![Frontier logo]()
$144
This Frontier deal was found by Cheapflights users on 4/28. 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 5/268:30 am
ONT
- LGA
1 stop10h 30m
Frontier
Deal found 4/28![Frontier logo]()
$145
This Kiwi.com deal was found by Cheapflights users on 4/26. 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.
Thu 5/144:04 pm
ONT
- LGA
2 stops22h 44m
Frontier
Deal found 4/26![Frontier logo]()
$146
This Trip.com deal was found by Cheapflights users on 4/25. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/169:15 am
ONT
- LGA
1 stop9h 45m
Frontier
Deal found 4/25![Frontier logo]()
$147
This Kiwi.com deal was found by Cheapflights users on 4/28. 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 5/1910:50 am
ONT
- LGA
3 stops26h 08m
Multiple Airlines
Deal found 4/28![Multiple Airlines logo]()
$148
This Delta deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/110:00 pm
ONT
- LGA
1 stop7h 14m
Delta
Deal found 4/28![Delta logo]()
$149
This CheapOair deal was found by Cheapflights users on 4/28. 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 6/48:03 am
ONT
- LGA
1 stop10h 57m
Frontier
Deal found 4/28![Frontier logo]()
$151
This Kiwi.com deal was found by Cheapflights users on 4/24. 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.
Sun 5/104:04 pm
ONT
- LGA
2 stops50h 56m
Frontier
Deal found 4/24![Frontier logo]()
$153
This Delta deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/206:00 am
ONT
- LGA
2 stops10h 31m
Delta
Deal found 4/29![Delta logo]()
$154
Find flight deals from Ontario to LaGuardia
Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to LaGuardia (LGA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated April 29, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $281 (Delta) |
One-way from | $143 (Super.com) |
Popular in | June |
Cheapest in | January |
Average price | $335 |
Cheapflights Fare Finder
Customize your flight search to find flights from Ontario to LaGuardia 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 April 29, 2026.
Use the filters below to find and compare flights from Ontario to New York LaGuardia Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
OntarioNew York
ONT - LGA
ONTLGA
Ontario
Wed 10/7
12:00 pm-10:42 pm
1 stop7h 42m
New York LaGuardia
Wed 10/14
3:00 pm-11:48 pm
2 stops11h 48m
$324
OntarioNew York
ONT - LGA
ONTLGA
Ontario
Thu 7/9
12:50 pm-10:55 pm
1 stop7h 05m
New York LaGuardia
Tue 7/14
1:25 pm-10:35 pm
1 stop12h 10m
$326
OntarioNew York
ONT - LGA
ONTLGA
Ontario
Fri 7/24
5:10 pm-8:47 am
2 stops12h 37m
New York LaGuardia
Wed 7/29
6:00 am-10:38 am
1 stop7h 38m
$343
OntarioNew York
ONT - LGA
ONTLGA
Ontario
Wed 7/15
6:30 am-7:22 pm
1 stop9h 52m
New York LaGuardia
Wed 7/22
5:25 pm-10:51 pm
1 stop8h 26m
$347
Quickest round-trip
OntarioNew York
ONT - LGA
ONTLGA
Ontario
Mon 5/11
10:00 pm-8:14 am
1 stop7h 14m
New York LaGuardia
Tue 5/12
4:00 pm-9:48 pm
1 stop8h 48m
$359
OntarioNew York
ONT - LGA
ONTLGA
Ontario
Tue 8/18
12:00 pm-10:50 pm
1 stop7h 50m
New York LaGuardia
Mon 8/24
4:00 pm-9:56 pm
1 stop8h 56m
$388
OntarioNew York
ONT - LGA
ONTLGA
Ontario
Sat 9/5
5:05 pm-10:47 am
2 stops14h 42m
New York LaGuardia
Sat 9/12
6:00 am-11:04 am
1 stop8h 04m
$393
OntarioNew York
ONT - LGA
ONTLGA
Ontario
Sat 5/9
5:00 am-3:47 pm
1 stop7h 47m
New York LaGuardia
Mon 5/11
3:20 pm-10:35 pm
1 stop10h 15m
$397
OntarioNew York
ONT - LGA
ONTLGA
Ontario
Mon 8/10
5:45 am-7:04 pm
1 stop10h 19m
New York LaGuardia
Mon 8/17
2:00 pm-9:59 pm
1 stop10h 59m
$398
OntarioNew York
ONT - LGA
ONTLGA
Ontario
Fri 7/24
10:00 pm-10:41 am
1 stop9h 41m
New York LaGuardia
Tue 8/4
6:00 am-10:38 am
1 stop7h 38m
$398
Showing 1-10 of 24 resultsSorted by cheapest first
Compare providers for flights from Ontario to LaGuardia
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to LaGuardia in April.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Ontario-New York LaGuardia Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-New York LaGuardia Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-New York LaGuardia Airport flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Ontario-New York LaGuardia Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-New York LaGuardia Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Ontario to LaGuardia
Have a flexible travel schedule? Discover the best time to fly to LaGuardia from Ontario with our price prediction graph.
ONT-LGA
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 Ontario to New York LaGuardia Airport
Prices
More
How far ahead should I book a flight from Ontario to New York LaGuardia Airport?
To ensure you get the cheapest price possible for a flight from Ontario to New York LaGuardia Airport, you should look to book at least 51 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest month to book a flight from Ontario to New York LaGuardia Airport?
Currently, January is the cheapest month in which you can book a flight from Ontario to New York LaGuardia Airport (average of $279). Flying from Ontario to New York LaGuardia Airport in June is currently the most expensive (average of $491). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How much does it cost to fly round-trip from Ontario to New York LaGuardia Airport?
What’s the top layover airport for flights from Ontario to New York LaGuardia Airport?
Share of 1-stop round-trip flights from Ontario to New York LaGuardia Airport chosen by Cheapflights users in the past 12 months, using the same layover each way.
Dallas (DFW) – chosen by Cheapflights users on 50% of 1-stop itineraries from Ontario to New York LaGuardia Airport on Cheapflights.
What’s the cheapest layover airport for flights from Ontario to New York LaGuardia Airport?
Average round-trip fare for 1-stop flights from Ontario to New York LaGuardia Airport, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Dallas (DFW) is the most affordable 1-stop option, with an average round-trip price of $189.
What’s the fastest layover option from Ontario to New York LaGuardia Airport?
Shortest average travel time for 1-stop one-way flights from Ontario to New York LaGuardia Airport, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Denver (DEN) have the shortest average one-way travel time for 1-stop routes: 8h 28m.
Which airport typically offers the quickest layover for flights from Ontario to New York LaGuardia Airport?
Average layover duration for 1-stop one-way flights from Ontario to New York LaGuardia Airport, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Denver (DEN) offer the fastest connection on this route, with an average layover time of 3h 33m.
Reviews of airlines servicing LaGuardia
Get insights into the airlines that provide service to LaGuardia. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to LaGuardia. Reviews last updated April 29, 2026.
See what other customers who have flown with Southwest,Delta, andUnited Airlines from Ontario to New York LaGuardia Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Overall
8.0
Food
7.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Overall
8.0
Food
7.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Overall
8.0
Food
7.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Overall
8.0
Food
7.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Overall
8.0
Food
7.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Related info for your journey
Find useful and relevant information for your journey from Ontario to LaGuardia. 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 New York LaGuardia Airport?
Book flights to New York LaGuardia Airport if you plan to visit one of these locationsQueens
Bronx
Mahwah
East Rutherford
Yonkers
Secaucus
Mount Laurel
North Bergen
Elizabeth
Irvington
Seaside Heights
Absecon
Parsippany
Edgewater
Carle Place
Staten Island
Tannersville
Carteret
Stamford
New Brunswick
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Other flights to LaGuardia
Explore flights to LaGuardia departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on April 29, 2026.
Ontario and LaGuardia flights
Browse other Ontario and LaGuardia flight options. Last updated on April 29, 2026.
Other flights from Ontario
Browse through other flights departing from Ontario. Flights are based on user searches made on Cheapflights and were last updated on April 29, 2026.
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Top 4 airlines flying from Ontario to LaGuardia
Discover the top 4 airlines that operate flights from Ontario to LaGuardia. 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 April 29, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$192 | Average$349 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$193 | Average$329 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$197 | Average$338 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$257 | Average$382 | FlexibilityNo cancel fee | On-timeN/A |