$157+ Cheap flights from Ontario (ONT) to LaGuardia, NY (LGA)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/4. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — LGA
Nov 19 — Nov 261
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
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 Ontario to LaGuardia
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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 October 20, 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 October 20, 2026.
This Delta deal was found by Cheapflights users on 10/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/412:16 pm -
1 stop7h 25m
Fri 11/135:00 pm -
1 stop7h 57m
Deal found 10/19![Delta logo]()
$317
This United Airlines deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/31:29 pm -
1 stop6h 46m
Wed 11/113:29 pm -
1 stop8h 22m
Deal found 10/14![United Airlines logo]()
$318
This Southwest deal was found by Cheapflights users on 10/15. 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.
Tue 12/81:55 pm -
1 stop6h 30m
Fri 12/118:30 am -
1 stop7h 35m
Deal found 10/15![Southwest logo]()
$322
This Southwest deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/111:55 pm -
1 stop6h 30m
Sat 11/148:45 am -
1 stop8h 25m
Deal found 10/18![Southwest logo]()
$323
This Delta deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/412:16 pm -
1 stop7h 25m
Tue 11/101:59 pm -
1 stop9h 55m
Deal found 10/14![Delta logo]()
$327
This United Airlines deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/111:29 pm -
1 stop6h 46m
Wed 11/189:05 am -
2 stops11h 56m
Deal found 10/14![United Airlines logo]()
$328
This United Airlines deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/121:29 pm -
1 stop6h 46m
Thu 11/192:00 pm -
1 stop10h 40m
Deal found 10/14![United Airlines logo]()
$332
This Delta deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/17:07 am -
1 stop9h 05m
Sat 11/146:00 am -
1 stop8h 03m
Deal found 10/14![Delta logo]()
$337
This Southwest deal was found by Cheapflights users on 10/15. 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.
Mon 11/28:45 pm -
2 stops9h 25m
Thu 11/52:00 pm -
1 stop11h 15m
Deal found 10/15![Southwest logo]()
$338
This United Airlines deal was found by Cheapflights users on 10/16. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/111:29 pm -
1 stop6h 46m
Tue 11/177:23 am -
1 stop8h 10m
Deal found 10/16![United Airlines logo]()
$342
This Frontier deal was found by Cheapflights users on 10/14. 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.
Wed 11/46:30 am -
2 stops11h 29m
Tue 11/108:30 pm -
2 stops16h 10m
Deal found 10/14![Frontier logo]()
$343
This Delta deal was found by Cheapflights users on 10/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/911:10 pm -
1 stop9h 33m
Wed 11/186:00 am -
1 stop8h 03m
Deal found 10/18![Delta logo]()
$347
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 October 20, 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 October 20, 2026.
This Delta deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/17:07 am -
1 stop9h 05m
Sat 11/146:00 am -
1 stop8h 03m
Deal found 10/14![Delta logo]()
$337
This Southwest deal was found by Cheapflights users on 10/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/61:50 pm -
1 stop6h 35m
Sun 1/106:30 am -
1 stop9h 40m
Deal found 10/17![Southwest logo]()
$347
This United Airlines deal was found by Cheapflights users on 10/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/35:00 am -
2 stops10h 11m
Wed 3/317:00 am -
1 stop8h 33m
Deal found 10/19![United Airlines logo]()
$352
This Delta deal was found by Cheapflights users on 10/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/3012:00 pm -
1 stop8h 41m
Tue 2/26:00 am -
1 stop8h 27m
Deal found 10/16![Delta logo]()
$347
This Delta deal was found by Cheapflights users on 10/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/47:00 am -
1 stop7h 42m
Mon 1/115:00 pm -
1 stop8h 14m
Deal found 10/18![Delta logo]()
$402
This Southwest deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/185:55 am -
2 stops9h 00m
Sat 11/217:25 am -
2 stops16h 40m
Deal found 10/18![Southwest logo]()
$458
This United Airlines deal was found by Cheapflights users on 10/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/145:00 am -
2 stops9h 15m
Mon 1/186:00 am -
2 stops14h 35m
Deal found 10/19![United Airlines logo]()
$487
This United Airlines deal was found by Cheapflights users on 10/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/105:00 am -
2 stops12h 19m
Wed 11/119:05 am -
2 stops11h 56m
Deal found 10/17![United Airlines logo]()
$487
This Southwest deal was found by Cheapflights users on 10/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/111:20 pm -
1 stop6h 35m
Mon 12/148:30 am -
2 stops10h 40m
Deal found 10/17![Southwest logo]()
$517
This United Airlines deal was found by Cheapflights users on 10/16. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/65:00 am -
1 stop9h 27m
Thu 11/127:23 am -
1 stop8h 10m
Deal found 10/16![United Airlines logo]()
$522
This United Airlines deal was found by Cheapflights users on 10/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/315:00 am -
1 stop7h 47m
Fri 11/62:00 pm -
1 stop10h 40m
Deal found 10/17![United Airlines logo]()
$527
Last-minute flights from Ontario to LaGuardiaDiscover last-minute flight deals from Ontario to LaGuardia. Data last updated October 20, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to LaGuardia. Data last updated October 20, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 10/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/315:00 am -
1 stop7h 47m
Tue 11/31:05 pm -
2 stops10h 46m
Deal found 10/17![United Airlines logo]()
$348
This Delta deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/17:07 am -
1 stop9h 05m
Sat 11/146:00 am -
1 stop8h 03m
Deal found 10/14![Delta logo]()
$337
This Southwest deal was found by Cheapflights users on 10/15. 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.
Mon 11/28:45 pm -
2 stops9h 25m
Thu 11/52:00 pm -
1 stop11h 15m
Deal found 10/15![Southwest logo]()
$338
This United Airlines deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/31:29 pm -
1 stop6h 46m
Wed 11/113:29 pm -
1 stop8h 22m
Deal found 10/14![United Airlines logo]()
$318
This Delta deal was found by Cheapflights users on 10/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/412:16 pm -
1 stop7h 25m
Fri 11/135:00 pm -
1 stop7h 57m
Deal found 10/19![Delta logo]()
$317
This Delta deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/412:16 pm -
1 stop7h 25m
Tue 11/101:59 pm -
1 stop9h 55m
Deal found 10/14![Delta logo]()
$327
This Frontier deal was found by Cheapflights users on 10/14. 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.
Wed 11/46:30 am -
2 stops11h 29m
Tue 11/108:30 pm -
2 stops16h 10m
Deal found 10/14![Frontier logo]()
$343
This Delta deal was found by Cheapflights users on 10/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/911:10 pm -
1 stop7h 27m
Fri 11/136:00 am -
1 stop8h 03m
Deal found 10/18![Delta logo]()
$347
This Southwest deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/111:55 pm -
1 stop6h 30m
Sat 11/148:45 am -
1 stop8h 25m
Deal found 10/18![Southwest logo]()
$323
This United Airlines deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/111:29 pm -
1 stop6h 46m
Wed 11/189:05 am -
2 stops11h 56m
Deal found 10/14![United Airlines logo]()
$328
This United Airlines deal was found by Cheapflights users on 10/16. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/111:29 pm -
1 stop6h 46m
Tue 11/177:23 am -
1 stop8h 10m
Deal found 10/16![United Airlines logo]()
$342
This United Airlines deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/121:29 pm -
1 stop6h 46m
Thu 11/192:00 pm -
1 stop10h 40m
Deal found 10/14![United Airlines logo]()
$332
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 October 20, 2026.
Search for one-way flight options from Ontario to LaGuardia. Find affordable one-way fares based on user searches. Data last updated October 20, 2026.
This Frontier deal was found by Cheapflights users on 10/14. 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.
Wed 11/46:30 am -
2 stops11h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/14![Frontier logo]()
$157
This Delta deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/412:16 pm -
1 stop7h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/14![Delta logo]()
$164
This United Airlines deal was found by Cheapflights users on 10/18. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/121:29 pm -
1 stop6h 46m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/18![United Airlines logo]()
$169
This Trip.com deal was found by Cheapflights users on 10/16. 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.
Tue 11/175:07 pm -
2 stops12h 27m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/16![Frontier logo]()
$173
This Delta deal was found by Cheapflights users on 10/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/17:07 am -
1 stop9h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/16![Delta logo]()
$174
This Frontier deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/96:30 am -
2 stops11h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/14![Frontier logo]()
$175
This Delta deal was found by Cheapflights users on 10/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/911:10 pm -
1 stop7h 27m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/17![Delta logo]()
$177
This Southwest deal was found by Cheapflights users on 10/15. 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.
Mon 11/28:45 pm -
2 stops9h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/15![Southwest logo]()
$179
This Southwest deal was found by Cheapflights users on 10/15. 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.
Mon 1/46:50 pm -
2 stops13h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/15![Southwest logo]()
$185
This KAYAK deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/237:06 am -
1 stop8h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/18![Delta logo]()
$186
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 October 20, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $317 (Delta) |
One-way from | $157 (Frontier) |
Popular in | March |
Cheapest in | February |
Average price | $421 |
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 7,457,451 searches. Data last updated October 20, 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 Ontario - LGA New York LaGuardia
ONTLGA
Ontario
Wed 11/4
12:16 pm-10:41 pm
1 stop7h 25m
New York LaGuardia
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$164
OntarioNew York
ONT Ontario - LGA New York LaGuardia
ONTLGA
Ontario
Mon 12/14
11:08 pm-11:43 am
1 stop9h 35m
New York LaGuardia
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$174
OntarioNew York
ONT Ontario - LGA New York LaGuardia
ONTLGA
Ontario
Tue 11/3
12:16 pm-10:41 pm
1 stop7h 25m
New York LaGuardia
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$220
OntarioNew York
ONT Ontario - LGA New York LaGuardia
ONTLGA
Ontario
Sun 12/6
11:08 pm-9:44 am
1 stop7h 36m
New York LaGuardia
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$230
Quickest round-trip
OntarioNew York
ONT Ontario - LGA New York LaGuardia
ONTLGA
Ontario
Sat 11/14
1:29 pm-11:15 pm
1 stop6h 46m
New York LaGuardia
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$234
OntarioNew York
ONT Ontario - LGA New York LaGuardia
ONTLGA
Ontario
Wed 12/16
5:00 am-3:54 pm
1 stop7h 54m
New York LaGuardia
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$234
OntarioNew York
ONT Ontario - LGA New York LaGuardia
ONTLGA
Ontario
Fri 10/30
10:10 pm-9:00 am
1 stop7h 50m
New York LaGuardia
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$239
OntarioNew York
ONT Ontario - LGA New York LaGuardia
ONTLGA
Ontario
Sun 1/3
11:52 pm-10:11 am
1 stop7h 19m
New York LaGuardia
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$239
OntarioNew York
ONT Ontario - LGA New York LaGuardia
ONTLGA
Ontario
Sun 12/20
11:52 pm-11:15 am
1 stop8h 23m
New York LaGuardia
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$239
OntarioNew York
ONT Ontario - LGA New York LaGuardia
ONTLGA
Ontario
Fri 1/8
6:00 am-9:26 pm
2 stops12h 26m
New York LaGuardia
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$244
Showing 1-10 of 23 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 October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| 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
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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, February 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 March is currently the most expensive (average of $581). 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.
What is the cheapest time of day to fly from ONT to LGA?
Find hourly flight availability from Ontario to LaGuardia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 20, 2026.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ontario to New York LaGuardia Airport as you normally would.
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 75% 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 $299.
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: 7h 30m.
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 Dallas (DFW) offer the fastest connection on this route, with an average layover time of 1h 36m.
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 October 20, 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.
Comfort
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Overall
7.9
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Comfort
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Overall
7.9
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Comfort
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Overall
7.9
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Comfort
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Overall
7.9
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Comfort
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Overall
7.9
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
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
Elizabeth
Bronx
East Rutherford
Staten Island
Mahwah
Mount Laurel
Yonkers
Irvington
Secaucus
Tannersville
North Bergen
Carle Place
Fort Lee
Clinton
Absecon
Carteret
Seaside Heights
Goshen
Avenel
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Alternative routes for Ontario to LaGuardia
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Complete your trip
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Search flights from Ontario to LaGuardia by cabin class
Find flights from Ontario to LaGuardia, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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 October 20, 2026.
Ontario and LaGuardia flights
Browse other Ontario and LaGuardia flight options. Last updated on October 20, 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 October 20, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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 7,457,451 searches. Data last updated October 20, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$192 | Average$394 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$193 | Average$371 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$257 | Average$372 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$268 | Average$426 | FlexibilityNo cancel fee | On-time69% |