
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $297 (American Airlines) |
One-way from | $125 (Frontier) |
Popular in | January |
Cheapest in | September |
Average price | $375 |
Good round-trip deal | $297 or less |
Good one-way deal | $188 or less |
Fly from
Fly to
Route
Depart
Return
NewarkOntario
EWR - ONT
EWRONT
Newark
Fri 6/5
4:29 pm-9:48 pm
1 stop8h 19m
Ontario
Mon 6/8
10:00 pm-9:26 am
1 stop8h 26m
New YorkOntario
LGA - ONT
LGAONT
New York LaGuardia
Thu 7/9
9:35 am-3:25 pm
1 stop8h 50m
Ontario
Tue 7/14
5:30 am-4:50 pm
2 stops8h 20m
New YorkOntario
JFK - ONT
JFKONT
New York John F Kennedy Intl
Wed 8/12
7:30 pm-10:35 pm
Nonstop6h 05m
Ontario
Sat 8/15
11:24 pm-7:45 am
Nonstop5h 21m
New YorkOntario
JFK - ONT
JFKONT
New York John F Kennedy Intl
Fri 6/5
5:30 pm-8:47 pm
Nonstop6h 17m
Ontario
Mon 6/8
10:41 pm-7:10 am
Nonstop5h 29m
New YorkOntario
JFK - ONT
JFKONT
New York John F Kennedy Intl
Mon 6/15
7:37 pm-10:43 pm
Nonstop6h 06m
Ontario
Wed 7/22
11:50 pm-8:11 am
Nonstop5h 21m
New YorkOntario
LGA - ONT
LGAONT
New York LaGuardia
Fri 6/5
6:00 am-10:57 am
1 stop7h 57m
Ontario
Mon 6/8
10:00 pm-8:11 am
1 stop7h 11m
New YorkOntario
JFK - ONT
JFKONT
New York John F Kennedy Intl
Sat 6/6
6:06 am-12:19 pm
1 stop9h 13m
Ontario
Tue 6/9
1:00 pm-11:52 pm
1 stop7h 52m
New YorkOntario
LGA - ONT
LGAONT
New York LaGuardia
Tue 6/2
5:25 pm-10:51 pm
1 stop8h 26m
Ontario
Wed 6/10
5:00 am-5:24 pm
1 stop9h 24m
NewarkOntario
EWR - ONT
EWRONT
Newark
Fri 5/29
7:30 am-3:09 pm
1 stop10h 39m
Ontario
Tue 6/2
7:41 pm-4:56 pm
1 stop18h 15m
New YorkOntario
LGA - ONT
LGAONT
New York LaGuardia
Thu 5/28
6:00 am-10:57 am
1 stop7h 57m
Ontario
Wed 6/3
12:07 pm-11:18 pm
1 stop8h 11m
| 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 Accuracy2 stars | Trust Score*1 star |
The best time to book flights from New York to Ontario is 36 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Currently, May is the cheapest month in which you can book a flight from New York to Ontario (average of $70). Flying from New York to Ontario in February is currently the most expensive (average of $189). 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.
Phoenix (PHX) – chosen by Cheapflights users on 40% of 1-stop itineraries from New York to Ontario on Cheapflights.
Seattle (SEA) is the most affordable 1-stop option, with an average round-trip price of $272.
Flights via Phoenix (PHX) have the shortest average one-way travel time for 1-stop routes: 8h 01m.
Flights via Portland (PDX) offer the fastest connection on this route, with an average layover time of 0h 40m.
Crew
Boarding
Entertainment
Food
Comfort
Overall
Reviews
Dominic,Mar 2026
MCO - SMF
Crew
Boarding
Entertainment
Food
Comfort
Overall
Reviews
Dominic,Mar 2026
MCO - SMF
Crew
Boarding
Entertainment
Food
Comfort
Overall
Reviews
Dominic,Mar 2026
MCO - SMF
Crew
Boarding
Entertainment
Food
Comfort
Overall
Reviews
Dominic,Mar 2026
MCO - SMF
Crew
Boarding
Entertainment
Food
Comfort
Overall
Reviews
Dominic,Mar 2026
MCO - SMF
Crew
Boarding
Entertainment
Food
Comfort
Overall
Reviews
Dominic,Mar 2026
MCO - SMF
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$132 | Average$299 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$148 | Average$387 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$180 | Average$432 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$192 | Average$447 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$227 | Average$472 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$252 | Average$336 | FlexibilityNo cancel fee | On-time62% |