$132 Cheap United flights from New York to Ontario (LGA to ONT)

Find The Best Day To Fly from New York to Ontario

Amazing United LGA to ONT Flight Deals

The cheapest flights to Los Angeles - Ontario Intl. found within the past 7 days were $252 round trip and $132 one way. Prices and availability subject to change. Additional terms may apply.

Thu, Nov 13 - Tue, Nov 18
LGA
New York
ONT
Ontario
$252 Roundtrip, found 2 days ago
$252
Roundtrip
found 2 days ago
Select United flight, departing Thu, Nov 13 from New York to Ontario, returning Tue, Nov 18, priced at $252 found 2 days ago
Wed, Mar 25 - Thu, Apr 2
LGA
New York
ONT
Ontario
$268 Roundtrip, found 2 hours ago
$268
Roundtrip
found 2 hours ago
Select United flight, departing Wed, Mar 25 from New York to Ontario, returning Thu, Apr 2, priced at $268 found 2 hours ago
Sat, Nov 8 - Fri, Nov 14
LGA
New York
ONT
Ontario
$277 Roundtrip, found 6 days ago
$277
Roundtrip
found 6 days ago
Select United flight, departing Sat, Nov 8 from New York to Ontario, returning Fri, Nov 14, priced at $277 found 6 days ago
Wed, Mar 25 - Thu, Apr 2
LGA
New York
ONT
Ontario
$299 Roundtrip, found 2 hours ago
$299
Roundtrip
found 2 hours ago
Select United flight, departing Wed, Mar 25 from New York to Ontario, returning Thu, Apr 2, priced at $299 found 2 hours ago

ONT From LGA Economy Coach Packages on Similar Airlines

Price found within the past 48 hours. Click for updated prices.
Vista Motel - Riverside

Vista Motel - Riverside

2.5 out of 5
Price was $511, price is now $410 per person
$410
per person
Nov 5 - Nov 11
found 9 hours ago
Roundtrip flight included
New York (JFK) to Ontario (ONT)
Yaamava’ Resort & Casino at San Manuel

Yaamava’ Resort & Casino at San Manuel

5 out of 5
Save 100% on your flight
Price was $1,684, price is now $1,128 per person
$1,128
per person
Nov 16 - Nov 20
found 1 day ago
Roundtrip flight included
New York (NYC) to Ontario (ONT)
Dynasty Suites Redlands

Dynasty Suites Redlands

3 out of 5
Save 100% on your flight
Price was $663, price is now $453 per person
$453
per person
Oct 22 - Oct 28
found 1 day ago
Roundtrip flight included
New York (NYC) to Ontario (ONT)
Don't see what you're looking for?
See all available trips from LaGuardia to Los Angeles - Ontario Intl.
View all trips

Frequently asked questions

Can I catch a flight from LaGuardia Airport to Ontario Airport right now?
Be sure to check out the Covid-19 Travel Advisor to learn if there are any current quarantine requirements and travel advice reports in effect in Ontario Airport when jet-setting from LaGuardia Airport (LGA).
What terminal is United Airlines at LGA?
Once you receive the boarding pass for your United Airlines flight from LaGuardia Airport to Ontario Airport, you should be able to see which terminals you'll be flying in and out of. Your airline will be able to help if those details are missing from your ticket.
Are there United Airlines non-stop flights from LGA to ONT?
You won't find any nonstop flights with United Airlines from LaGuardia Airport (LGA) to ONT. But think of it this way — you can make the most of this time to go for a stroll and stretch out those legs before boarding your next flight.
How long is a United Airlines flight from LGA to ONT?
Indulge in some in-flight shut-eye and touch down at your destination well-rested. You'll have enough time to do so when traveling with United Airlines between LGA and Los Angeles - Ontario Intl. Airport (ONT), with the average flight lasting 6 hours and 57 minutes.
How many direct and indirect flights does United Airlines fly from LGA to ONT?
You'll have a lot of options if you're considering flying with United Airlines from LGA to ONT. Currently, it offers 2 flights each day.
If I am not able to travel due to COVID-19, can I change my booking to a later date?
For more info about changing your flight to Los Angeles - Ontario Intl. Airport (ONT), please visit our Customer Service Portal.
What is the best day to buy a plane ticket?
This just in! Airfares offered on Thursdays tend to be the cheapest, according to flight demand on Travelocity in 2021. Tuesday and Wednesday prices are also good, but you may want to prepare your budget if booking during the weekend, as data shows that is when prices are generally at their highest.
What are the cheapest days to fly?
Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2021, flights departing on a Monday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.
How far in advance can you book a flight?
Trying to figure out how early you should book your flight? It's possible to start comparing international airfares on Travelocity up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 0-2 weeks prior to their travel dates.*According to flight demand on Travelocity.com from January to December 2021. Savings are subject to change based on departure location, date and destination.

Discover our best United flight from New York LGA to Ontario ONT 

To find the best deals on flights to New York from Ontario with United, just enter your travel dates, filter by United, and hit search. You’ll find flights to choose from and can sort by price, flight duration, and arrival or departure time.  

 

Return flights from New York LGA to Ontario ONT with United 

If you’re planning a round trip, booking return flights with United is usually the most cost-effective option. With airfares ranging from $252 to $299, it’s easy to find a flight that suits your budget. Prices and availability subject to change. Additional terms may apply. 

 

Book one-way United flights from New York LGA to Ontario ONT 

A one-way ticket gives you much greater flexibility—allowing you to choose your return date, destination, and time whenever you’re ready. By booking in advance you can find great deals on one-way tickets too. Right now, a one-way United flight from New York to Ontario costs from $132. Prices and availability subject to change. Additional terms may apply. 

 

The easy way to find cheap flights to Ontario ONT from  New York LGA with United 

To find a cheap United flight from New York LGA to Ontario ONT, sort your search results by price or filter by budget. Thanks to Travelocity’s Price Match Promise, if you find a better airfare deal anywhere else within 24 hours, we’ll credit or refund the difference. 

 

How to find our best airfare deals on United flights from New York LGA to Ontario ONT 

If you’re looking for cheap flights, it helps to be flexible when it comes to your travel dates. You’ll usually find lower cost tickets when you travel during quieter months such as November, or if you book a flight with a stopover. 

 

Find nonstop flights from New York LGA to Ontario ONT with United 

If you’re keen to be on Ontario soil fast, don’t waste time with a stopover—filter your search results to show direct United flights only. The journey takes around hour(s) min(s) – so you’ll be there before you know it. 

 

Flexible airline tickets for United flights from New York LGA to Ontario ONT 

Make sure you’re not out of pocket if plans change by choosing a flexible ticket with penalty-free amendment and cancellation options. Use our ‘no change fee’ filter to see which flights have this option.  

 

There are a lot of reasons to book your flights to Ontario ONT from  New York LGA with United on Travelocity 

At Travelocity our vast and up-to-the-minute inventory puts all of our best flight deals in one place. So, whether you’re traveling on business or jetting off with friends and family, you can trust Travelocity to get you there.

United Airports
Hop on a(n) United flight today by flying to many destinations out of these domestic and international airports:
Airport code
Country
Airport name
Number of flights
ORDUSAO'Hare Intl.227
DENUSADenver Intl.226
IAHUSAGeorge Bush Intercontinental136
IADUSAWashington Dulles Intl.100
SFOUSASan Francisco Intl.64
LAXUSALos Angeles Intl.23
EWRUSALiberty Intl.20
FRADEUFrankfurt Intl.19
NRTJPNNarita Intl.19
PEKCHNCapital Intl.16

Travelers ❤️ these 🏨 after their flight to Ontario

DoubleTree by Hilton Ontario Airport

DoubleTree by Hilton Ontario Airport

4 out of 5
222 N Vineyard Ave, Ontario, CA
This smoke-free hotel features a nightclub and 2 restaurants. Traveling on business? Take advantage of the 24-hour business center, free WiFi in public areas, ...
8/10 Very Good! (1,009 reviews)
"Staff was very friendly and knowledgeable."

Reviewed on Sep 19, 2025

DoubleTree by Hilton Ontario Airport
Ontario Airport Hotel & Conference Center

Ontario Airport Hotel & Conference Center

3.5 out of 5
700 N Haven Ave, Ontario, CA
This hotel features an outdoor pool, a 24-hour gym, and a restaurant. Traveling on business? Take advantage of the 24-hour business center and free WiFi in public ...
8.6/10 Excellent! (2,924 reviews)
"Nice place"

Reviewed on Sep 19, 2025

Ontario Airport Hotel & Conference Center
Extended Studio Hotel Ontario

Extended Studio Hotel Ontario

2.5 out of 5
1818 E Holt Blvd, Ontario, CA
This hotel doesn't skimp on freebies - guests receive free WiFi and free self parking. Business travelers can take advantage of the business center. A terrace, ...
9/10 Wonderful! (730 reviews)
"I like staff"

Reviewed on Sep 25, 2025

Extended Studio Hotel Ontario
Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.
*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.