
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $185 (Gotogate) |
One-way from | $59 (Trip.com) |
Popular in | December |
Cheapest in | June |
Average price | $328 |
Good round-trip deal | $467 or less |
Good one-way deal | $164 or less |
Fly from
Fly to
Route
Depart
Return
ChicagoOntario
ORD - ONT
ORDONT
Chicago O'Hare Intl
Wed 5/27
5:44 pm-11:58 pm
1 stop8h 14m
Ontario
Thu 5/28
12:04 pm-11:59 pm
1 stop9h 55m
ChicagoOntario
ORD - ONT
ORDONT
Chicago O'Hare Intl
Thu 5/28
6:00 am-12:47 pm
1 stop8h 47m
Ontario
Sat 5/30
6:30 am-12:45 pm
Nonstop4h 15m
ChicagoOntario
ORD - ONT
ORDONT
Chicago O'Hare Intl
Thu 7/23
8:18 pm-10:51 pm
Nonstop4h 33m
Ontario
Tue 7/28
6:10 am-12:25 pm
Nonstop4h 15m
ChicagoOntario
ORD - ONT
ORDONT
Chicago O'Hare Intl
Wed 6/10
8:18 pm-10:51 pm
Nonstop4h 33m
Ontario
Wed 6/17
1:50 pm-12:59 am
1 stop9h 09m
ChicagoOntario
ORD - ONT
ORDONT
Chicago O'Hare Intl
Sat 8/1
8:18 pm-10:51 pm
Nonstop4h 33m
Ontario
Sat 8/15
7:00 am-1:15 pm
Nonstop4h 15m
ChicagoOntario
ORD - ONT
ORDONT
Chicago O'Hare Intl
Wed 6/3
7:05 am-12:47 pm
1 stop7h 42m
Ontario
Sun 6/7
6:05 am-12:20 pm
Nonstop4h 15m
ChicagoOntario
ORD - ONT
ORDONT
Chicago O'Hare Intl
Mon 6/1
6:00 am-3:09 pm
1 stop11h 09m
Ontario
Thu 6/4
7:41 pm-6:20 am
1 stop8h 39m
ChicagoOntario
ORD - ONT
ORDONT
Chicago O'Hare Intl
Sat 10/24
3:09 pm-10:39 pm
1 stop9h 30m
Ontario
Fri 10/30
6:00 am-5:01 pm
1 stop9h 01m
ChicagoOntario
ORD - ONT
ORDONT
Chicago O'Hare Intl
Fri 7/24
5:54 pm-11:48 pm
2 stops7h 54m
Ontario
Mon 7/27
9:40 am-9:52 pm
2 stops10h 12m
ChicagoOntario
ORD - ONT
ORDONT
Chicago O'Hare Intl
Tue 7/28
8:18 pm-10:51 pm
Nonstop4h 33m
Ontario
Sat 8/1
1:18 pm-9:39 pm
1 stop6h 21m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
The price you pay for your flight from Chicago O'Hare Intl Airport to Ontario may vary depending on when you book. For the best chance of a lower fare, look to book 59 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
Currently, June is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Ontario (average of $317). Flying from Chicago O'Hare Intl Airport to Ontario in December is currently the most expensive (average of $537). 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.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Chicago O'Hare Intl Airport to Ontario as you normally would.
Phoenix (PHX) – chosen by Cheapflights users on 67% of 1-stop itineraries from Chicago O'Hare Intl Airport to Ontario on Cheapflights.
Denver (DEN) is the most affordable 1-stop option, with an average round-trip price of $183.
Flights via Phoenix (PHX) have the shortest average one-way travel time for 1-stop routes: 6h 23m.
Flights via Phoenix (PHX) offer the fastest connection on this route, with an average layover time of 1h 01m.
Entertainment
Comfort
Overall
Boarding
Crew
Food
Reviews
Dominic,Mar 2026
MCO - SMF
Entertainment
Comfort
Overall
Boarding
Crew
Food
Reviews
Dominic,Mar 2026
MCO - SMF
Entertainment
Comfort
Overall
Boarding
Crew
Food
Reviews
Dominic,Mar 2026
MCO - SMF
Entertainment
Comfort
Overall
Boarding
Crew
Food
Reviews
Dominic,Mar 2026
MCO - SMF
Entertainment
Comfort
Overall
Boarding
Crew
Food
Reviews
Dominic,Mar 2026
MCO - SMF
Entertainment
Comfort
Overall
Boarding
Crew
Food
Reviews
Dominic,Mar 2026
MCO - SMF
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$127 | Average$259 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$218 | Average$533 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$256 | Average$359 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$272 | Average$518 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$306 | Average$524 | FlexibilityNo cancel fee | On-time71% |