
Most accurate provider | eDreams 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $158 (Kiwi.com) |
One-way from | $69 (Trip.com) |
Popular in | January |
Cheapest in | April |
Average price | $514 |
Good round-trip deal | $418 or less |
Good one-way deal | $196 or less |
Fly from
Fly to
Route
Depart
Return
Price
OntarioChicago
ONT - ORD
ONTORD
Ontario
Mon 4/6
6:00 am-12:12 am
1 stop16h 12m
Chicago O'Hare Intl
Mon 4/13
7:15 am-9:17 pm
1 stop16h 02m
OntarioChicago
ONT - ORD
ONTORD
Ontario
Sat 1/10
3:21 pm-7:54 pm
1 stop26h 33m
Chicago O'Hare Intl
Sun 1/11
10:07 pm-11:56 pm
1 stop27h 49m
OntarioChicago
ONT - ORD
ONTORD
Ontario
Wed 1/28
7:30 am-9:52 pm
2 stops12h 22m
Chicago O'Hare Intl
Sat 1/31
7:30 am-1:56 pm
1 stop8h 26m
OntarioChicago
ONT - ORD
ONTORD
Ontario
Wed 1/28
5:59 pm-5:10 pm
2 stops21h 11m
Chicago O'Hare Intl
Sat 1/31
8:00 am-5:03 pm
2 stops11h 03m
OntarioChicago
ONT - ORD
ONTORD
Ontario
Sat 3/21
4:49 pm-6:08 am
1 stop11h 19m
Chicago O'Hare Intl
Wed 3/25
12:35 pm-9:03 pm
1 stop10h 28m
OntarioChicago
ONT - ORD
ONTORD
Ontario
Tue 3/24
4:49 pm-6:08 am
1 stop11h 19m
Chicago O'Hare Intl
Fri 3/27
6:30 pm-12:01 am
1 stop7h 31m
OntarioChicago
ONT - ORD
ONTORD
Ontario
Sat 1/17
7:56 pm-2:38 pm
2 stops16h 42m
Chicago O'Hare Intl
Thu 1/22
3:35 pm-10:59 am
1 stop21h 24m
OntarioChicago
ONT - ORD
ONTORD
Ontario
Mon 2/9
6:00 am-11:50 pm
1 stop15h 50m
Chicago O'Hare Intl
Tue 2/10
8:00 am-3:08 pm
1 stop9h 08m
OntarioChicago
ONT - ORD
ONTORD
Ontario
Wed 1/28
4:03 pm-5:10 pm
1 stop23h 07m
Chicago O'Hare Intl
Mon 2/2
8:00 am-3:08 pm
1 stop9h 08m
OntarioChicago
ONT - ORD
ONTORD
Ontario
Sat 1/17
4:03 pm-2:38 pm
1 stop20h 35m
Chicago O'Hare Intl
Tue 1/20
8:00 am-8:36 pm
1 stop14h 36m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*2 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy- | Trust Score*1 star |
The price you pay for your flight from Ontario to Chicago O'Hare Intl Airport may vary depending on when you book. For the best chance of a lower fare, look to book 51 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
Currently, March is the cheapest month in which you can book a flight from Ontario to Chicago O'Hare Intl Airport (average of $77). Flying from Ontario to Chicago O'Hare Intl Airport in October is currently the most expensive (average of $147). 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.
It’s typically best to fly out from Ontario to Chicago O'Hare Intl Airport in the afternoon. Doing so could potentially save you 48% on the flight price compared to flying in the evening, which is usually more expensive.
Travelers seeking maximum savings on their Ontario to Chicago O'Hare Intl Airport flight should consider departing on Saturday afternoons when fares are most often at their lowest. Wednesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
Entertainment
Food
Boarding
Comfort
Crew
Overall
Reviews
William Drew,Nov 2025
SJC - HNL
Entertainment
Food
Boarding
Comfort
Crew
Overall
Reviews
William Drew,Nov 2025
SJC - HNL
Entertainment
Food
Boarding
Comfort
Crew
Overall
Reviews
William Drew,Nov 2025
SJC - HNL
Entertainment
Food
Boarding
Comfort
Crew
Overall
Reviews
William Drew,Nov 2025
SJC - HNL
Entertainment
Food
Boarding
Comfort
Crew
Overall
Reviews
William Drew,Nov 2025
SJC - HNL
Entertainment
Food
Boarding
Comfort
Crew
Overall
Reviews
William Drew,Nov 2025
SJC - HNL
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$110 | Average$217 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$227 | Average$398 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$246 | Average$428 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$246 | Average$438 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$256 | Average$355 | FlexibilityNo cancel fee | On-timeN/A |