Cheap flights from Chicago O'Hare Intl Airport to Ontario from C$ 140
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/6. Fares are subject to change and may not be available on all flights or dates of travel.
Cheap flight deals from O'Hare Intl to Ontario
Keep the following information in mind while searching for O'Hare Intl to Ontario flight deals. Data was last updated 29 April 2025.
Find flight deals from O'Hare Intl to Ontario
Cheapest flights from O'Hare Intl to OntarioExplore the most affordable flight options available from O'Hare Intl to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 April 2025.
Explore the most affordable flight options available from O'Hare Intl to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 April 2025.
Cheapflights Fare Finder
Customize your flight search to find flights from O'Hare Intl to Ontario 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 629,999 searches. Data last updated 29 April 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Ontario that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
ChicagoToronto
ORD - YYZ
ORDYYZ
Chicago O'Hare Intl
Tue 1/7
8:50 a.m.-11:49 a.m.
Nonstop1h 59m
Toronto Pearson Intl
Tue 1/7
2:00 p.m.-6:53 p.m.
1 stop5h 53m
ChicagoToronto
ORD - YTZ
ORDYTZ
Chicago O'Hare Intl
Sun 8/6
2:07 p.m.-9:35 p.m.
1 stop6h 28m
Toronto Island
Sun 15/6
7:25 a.m.-11:24 a.m.
1 stop4h 59m
ChicagoToronto
ORD - YYZ
ORDYYZ
Chicago O'Hare Intl
Thu 26/6
4:43 p.m.-7:37 p.m.
Nonstop1h 54m
Toronto Pearson Intl
Sat 12/7
2:10 p.m.-3:04 p.m.
Nonstop1h 54m
ChicagoMontreal
ORD - YUL
ORDYUL
Chicago O'Hare Intl
Thu 29/5
2:16 p.m.-9:41 p.m.
1 stop6h 25m
Montreal Pierre Elliott Trudeau Intl
Sun 1/6
8:20 a.m.-9:52 a.m.
Nonstop2h 32m
ChicagoMontreal
ORD - YUL
ORDYUL
Chicago O'Hare Intl
Wed 4/6
12:41 p.m.-12:37 a.m.
2 stops10h 56m
Montreal Pierre Elliott Trudeau Intl
Wed 11/6
8:20 a.m.-9:52 a.m.
Nonstop2h 32m
ChicagoToronto
ORD - YTZ
ORDYTZ
Chicago O'Hare Intl
Sat 24/5
7:47 a.m.-6:55 p.m.
2 stops10h 08m
Toronto Island
Sun 25/5
8:50 a.m.-11:56 a.m.
1 stop4h 06m
ChicagoToronto
ORD - YYZ
ORDYYZ
Chicago O'Hare Intl
Wed 4/6
1:04 p.m.-7:05 p.m.
1 stop5h 01m
Toronto Pearson Intl
Sun 8/6
7:00 a.m.-7:59 a.m.
Nonstop1h 59m
ChicagoMontreal
ORD - YUL
ORDYUL
Chicago O'Hare Intl
Thu 29/5
2:07 p.m.-5:26 p.m.
Nonstop2h 19m
Montreal Pierre Elliott Trudeau Intl
Sun 1/6
8:20 a.m.-9:52 a.m.
Nonstop2h 32m
ChicagoMontreal
ORD - YUL
ORDYUL
Chicago O'Hare Intl
Sun 15/6
7:19 a.m.-10:40 a.m.
Nonstop2h 21m
Montreal Pierre Elliott Trudeau Intl
Tue 24/6
6:15 a.m.-7:59 a.m.
Nonstop2h 44m
ChicagoToronto
ORD - YYZ
ORDYYZ
Chicago O'Hare Intl
Thu 26/6
8:29 a.m.-6:34 p.m.
1 stop9h 05m
Toronto Pearson Intl
Mon 30/6
6:30 a.m.-10:03 a.m.
1 stop4h 33m
Best time to book a flight from O'Hare Intl to Ontario
Have a flexible travel schedule? Discover the best time to fly to Ontario from O'Hare Intl with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Chicago O'Hare Intl Airport to Ontario
What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to Region of Ontario?
Currently, January is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Region of Ontario (average of C$ 167). Flying from Chicago O'Hare Intl Airport to Region of Ontario in July is currently the most expensive (average of C$ 258). 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 ORD to ON?
Find hourly flight availability from O'Hare Intl to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 29 April 2025.
When flying from Chicago O'Hare Intl Airport to Region of Ontario, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Weekly flight availability from Chicago O'Hare Intl Airport to Region of Ontario
Explore weekly flight availability from O'Hare Intl to Ontario. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 29 April 2025.
The most flights from ORD to CAON are scheduled on a Monday (57 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (47 on average).
Rainfall in Ontario by month
Plan your trip to Ontario by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Region of Ontario ranges from 51.0 - 83.0 mm per month. June is typically the wettest month, when rainfall can reach 83.0 mm. February is typically the driest time to visit Region of Ontario when rainfall is around 51.0 mm.
Temperature in Ontario by month
Plan your trip to Ontario by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Region of Ontario, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 21.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -6.0 C).
Reviews of airlines servicing Ontario
Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated 29 April 2025.
See what other customers who have flown with Delta, United Airlines and American Airlines from Chicago to Ontario have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
Boarding
Comfort
Entertainment
Food
Overall
Reviews
Aaron,Oct 2024
LAX - LHR
Crew
Boarding
Comfort
Entertainment
Food
Overall
Reviews
Aaron,Oct 2024
LAX - LHR
Crew
Boarding
Comfort
Entertainment
Food
Overall
Reviews
Aaron,Oct 2024
LAX - LHR
Crew
Boarding
Comfort
Entertainment
Food
Overall
Reviews
Aaron,Oct 2024
LAX - LHR
Crew
Boarding
Comfort
Entertainment
Food
Overall
Reviews
Aaron,Oct 2024
LAX - LHR
Crew
Boarding
Comfort
Entertainment
Food
Overall
Reviews
Aaron,Oct 2024
LAX - LHR
Related info for your journey
Find useful and relevant information for your journey from O'Hare Intl to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for O'Hare Intl to Ontario
See prices for flight routes from nearby airports that may be better suited for you.
Top 2 airlines flying from O'Hare Intl to Ontario
Discover the top 2 airlines that operate flights from O'Hare Intl to Ontario. 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 629,999 searches. Data last updated 29 April 2025.
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