Cheap flights from Ontario (ONT) to O'Hare Intl (ORD) from $70
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 6/5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
ONT — ORD
jun. 4 — jun. 111
From?
To?
1 adult, Economy
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The best prices from Ontario to Chicago O'Hare Intl are usually found in April or May, booked 42 days in advance, depart on a Tuesday or Friday and return on a Saturday
Cheap flight deals from Ontario to O'Hare Intl
Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to O'Hare Intl (ORD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated mayo 30, 2024.
Popular in | August |
|---|---|
Cheapest in | April |
Round-trip from | $222 |
One-way from | $99 |
What is the cheapest day to fly round-trip from Ontario to Chicago O'Hare Intl Airport?
Users have found that leaving on a Monday can be a cost-effective option. It’s possible to save up to 28% on your flight compared to booking on days when demand is much higher.
How far in advance should I book a flight from Ontario to Chicago O'Hare Intl Airport?
Find a great deal and save up to 71% by booking at least 60 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Ontario to Chicago O'Hare Intl Airport within the next two weeks, with the cheapest ticket starting at $319.
What is the cheapest month to fly from Ontario to Chicago O'Hare Intl Airport?
January is one of the best times of the year to fly to Chicago O'Hare Intl Airport from Ontario. Prices for January average $313 per person but you can even find prices for as low as $135. The most expensive prices can be found in the month of March. Opting for a January flight can save you 20% on your journey compared to booking in March
What is the cheapest time of day to fly from ONT to ORD?
It’s typically best to fly out from Ontario to Chicago O'Hare Intl Airport in the afternoon. Doing so could potentially save you 17% on the flight price compared to flying in the morning, which is usually more expensive.
Cheap Delta flights from Ontario to O'Hare Intl
Explore cheap flight options specifically provided by Delta for the route between Ontario and O'Hare Intl. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated mayo 30, 2024.
Peruse some of the lowest-priced Delta flights we've found from Ontario to Chicago. It's recommended that users confirm their flight details before booking.
sáb. 8/311:21 pmONT - ORD
1 stop6h 09mDelta
mar. 9/33:50 pmORD - ONT
2 stops10h 09mDelta
Deal found 5/29$241
sáb. 8/316:00 amONT - ORD
2 stops8h 50mDelta
mié. 9/43:50 pmORD - ONT
2 stops10h 09mDelta
Deal found 5/29$246
mar. 6/41:20 pmONT - ORD
1 stop6h 12mDelta
jue. 7/412:00 pmORD - ONT
1 stop9h 44mDelta
Deal found 5/30$279
mié. 7/175:00 pmONT - ORD
2 stops12h 30mDelta
sáb. 7/207:35 amORD - ONT
1 stop6h 40mDelta
Deal found 5/29$284
mié. 7/175:00 pmONT - ORD
2 stops12h 30mDelta
mié. 7/242:00 pmORD - ONT
1 stop10h 42mDelta
Deal found 5/29$292
jue. 8/15:00 pmONT - ORD
2 stops12h 30mDelta
lun. 8/55:15 pmORD - ONT
2 stops8h 44mDelta
Deal found 5/29$297
sáb. 6/811:40 amONT - ORD
1 stop10h 18mDelta
sáb. 6/154:00 pmORD - ONT
2 stops9h 42mDelta
Deal found 5/30$352
mié. 6/52:13 pmONT - ORD
1 stop7h 53mDelta
lun. 6/103:55 pmORD - ONT
2 stops9h 47mDelta
Deal found 5/30$395
mié. 6/56:42 pmONT - ORD
2 stops11h 57mDelta
lun. 6/1012:35 pmORD - ONT
2 stops13h 07mDelta
Deal found 5/30$400
Cheap Frontier flights from Ontario to O'Hare Intl
Explore cheap flight options specifically provided by Frontier for the route between Ontario and O'Hare Intl. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated mayo 30, 2024.
Some of the lowest-priced Frontier flights we've found at this time heading from Ontario to Chicago. If these deals don't fit your criteria, make sure to check back soon as new deals are always added.
lun. 9/212:49 amONT - ORD
1 stop17h 32mFrontier
mar. 9/107:30 pmORD - ONT
1 stop24h 39mFrontier
Deal found 5/30$136
mar. 8/2712:49 amONT - ORD
1 stop22h 14mFrontier
mié. 9/47:30 pmORD - ONT
1 stop13h 38mFrontier
Deal found 5/30$137
lun. 6/1012:55 pmONT - ORD
1 stop14h 30mFrontier
jue. 6/138:23 pmORD - ONT
1 stop18h 56mFrontier
Deal found 5/29$138
mar. 8/2012:49 amONT - ORD
1 stop22h 14mFrontier
lun. 8/267:30 pmORD - ONT
1 stop24h 39mFrontier
Deal found 5/29$139
lun. 6/105:41 pmONT - ORD
1 stop9h 44mFrontier
sáb. 6/158:35 pmORD - ONT
1 stop12h 28mFrontier
Deal found 5/29$140
vie. 6/712:48 amONT - ORD
1 stop18h 18mFrontier
mié. 6/129:53 pmORD - ONT
1 stop28h 06mFrontier
Deal found 5/29$141
vie. 6/712:48 amONT - ORD
1 stop18h 18mFrontier
mar. 6/118:23 pmORD - ONT
1 stop23h 25mFrontier
Deal found 5/30$142
mar. 6/1110:31 pmONT - ORD
1 stop28h 54mFrontier
sáb. 6/158:35 pmORD - ONT
1 stop12h 28mFrontier
Deal found 5/30$143
lun. 6/1012:59 amONT - ORD
1 stop21h 41mFrontier
mié. 6/128:23 pmORD - ONT
1 stop12h 40mFrontier
Deal found 5/29$144
Cheap Ontario to O'Hare Intl flights in May & June 2024
Find cheap flight options from Ontario to O'Hare Intl specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,784,634 searches. Prices were last updated on mayo 30, 2024.
Check out some of the best flight deals from Ontario to Chicago in 2024. Check back soon for alternative fares.
vie. 6/712:48 amONT - ORD
1 stop18h 18mFrontier
jue. 6/138:23 pmORD - ONT
1 stop23h 05mFrontier
Deal found 5/29$138
mié. 6/512:49 amONT - ORD
1 stop21h 51mFrontier
mar. 6/118:23 pmORD - ONT
1 stop23h 25mFrontier
Deal found 5/28$139
vie. 6/712:48 amONT - ORD
1 stop18h 18mFrontier
sáb. 6/158:35 pmORD - ONT
1 stop12h 28mFrontier
Deal found 5/29$140
vie. 6/712:48 amONT - ORD
1 stop18h 18mFrontier
mié. 6/129:53 pmORD - ONT
1 stop28h 06mFrontier
Deal found 5/29$141
lun. 6/1012:55 pmONT - ORD
1 stop14h 30mFrontier
jue. 6/138:23 pmORD - ONT
1 stop23h 05mFrontier
Deal found 5/30$142
mar. 6/1110:31 pmONT - ORD
1 stop28h 54mFrontier
sáb. 6/158:35 pmORD - ONT
1 stop12h 28mFrontier
Deal found 5/30$143
lun. 6/1012:59 amONT - ORD
1 stop21h 41mFrontier
mié. 6/128:23 pmORD - ONT
1 stop12h 40mFrontier
Deal found 5/29$144
mié. 6/58:55 pmONT - ORD
1 stop6h 28mFrontier
mié. 6/128:23 pmORD - ONT
1 stop12h 40mFrontier
Deal found 5/29$150
mié. 6/56:06 pmONT - ORD
1 stop9h 17mFrontier
mar. 6/188:23 pmORD - ONT
1 stop14h 41mFrontier
Deal found 5/30$168
Ontario to O'Hare Intl 2024 flight deals
Discover exclusive flight deals for travel between Ontario and O'Hare Intl in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated mayo 30, 2024.
Check out some of the best flight deals from Ontario to Chicago in 2024. Check back soon for alternative fares.
lun. 9/212:49 amONT - ORD
1 stop17h 32mFrontier
mar. 9/107:30 pmORD - ONT
1 stop24h 39mFrontier
Deal found 5/30$136
mar. 8/2712:49 amONT - ORD
1 stop22h 14mFrontier
mié. 9/47:30 pmORD - ONT
1 stop13h 38mFrontier
Deal found 5/30$137
vie. 6/712:48 amONT - ORD
1 stop18h 18mFrontier
jue. 6/138:23 pmORD - ONT
1 stop23h 05mFrontier
Deal found 5/29$138
mié. 6/512:49 amONT - ORD
1 stop21h 51mFrontier
mar. 6/118:23 pmORD - ONT
1 stop23h 25mFrontier
Deal found 5/28$139
vie. 6/712:48 amONT - ORD
1 stop18h 18mFrontier
sáb. 6/158:35 pmORD - ONT
1 stop12h 28mFrontier
Deal found 5/29$140
vie. 6/712:48 amONT - ORD
1 stop18h 18mFrontier
mié. 6/129:53 pmORD - ONT
1 stop28h 06mFrontier
Deal found 5/29$141
lun. 6/1012:55 pmONT - ORD
1 stop14h 30mFrontier
jue. 6/138:23 pmORD - ONT
1 stop23h 05mFrontier
Deal found 5/30$142
mar. 6/1110:31 pmONT - ORD
1 stop28h 54mFrontier
sáb. 6/158:35 pmORD - ONT
1 stop12h 28mFrontier
Deal found 5/30$143
lun. 6/1012:59 amONT - ORD
1 stop21h 41mFrontier
mié. 6/128:23 pmORD - ONT
1 stop12h 40mFrontier
Deal found 5/29$144
Ontario to O'Hare Intl flights leaving soon
Find last-minute flight options from Ontario to O'Hare Intl for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated mayo 30, 2024.
Have a look at some of the last-minute flights available departing from Ontario to Chicago. Users should be sure to double check the price, date, and time of their last-minute flight.
vie. 6/712:48 amONT - ORD
1 stop18h 18mFrontier
jue. 6/138:23 pmORD - ONT
1 stop23h 05mFrontier
Deal found 5/29$138
mié. 6/512:49 amONT - ORD
1 stop21h 51mFrontier
mar. 6/118:23 pmORD - ONT
1 stop23h 25mFrontier
Deal found 5/28$139
vie. 6/712:48 amONT - ORD
1 stop18h 18mFrontier
sáb. 6/158:35 pmORD - ONT
1 stop12h 28mFrontier
Deal found 5/29$140
vie. 6/712:48 amONT - ORD
1 stop18h 18mFrontier
mié. 6/129:53 pmORD - ONT
1 stop28h 06mFrontier
Deal found 5/29$141
vie. 6/712:48 amONT - ORD
1 stop18h 18mFrontier
mar. 6/118:23 pmORD - ONT
1 stop23h 25mFrontier
Deal found 5/30$142
mié. 6/52:39 pmONT - ORD
1 stop12h 44mFrontier
jue. 6/68:23 pmORD - ONT
1 stop18h 51mFrontier
Deal found 5/29$144
mié. 6/58:55 pmONT - ORD
1 stop6h 28mFrontier
mié. 6/128:23 pmORD - ONT
1 stop12h 40mFrontier
Deal found 5/29$150
mié. 6/56:06 pmONT - ORD
1 stop9h 17mFrontier
mar. 6/188:23 pmORD - ONT
1 stop14h 41mFrontier
Deal found 5/30$168
vie. 6/78:50 pmONT - ORD
1 stop6h 35mFrontier
mié. 6/128:23 pmORD - ONT
1 stop12h 40mFrontier
Deal found 5/30$169
One-way flights to O'Hare Intl from Ontario
Search for one-way flight options from Ontario to O'Hare Intl. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated mayo 30, 2024.
Users traveling one-way from Ontario to Chicago can select one of these great deals. Users in need of a round-trip flight from Ontario to Chicago instead should update the search form at the top of page.
mié. 6/58:55 pmONT - ORD
1 stop6h 28mFrontier
Deal found 5/29$70
mar. 6/2512:59 amONT - ORD
1 stop17h 49mFrontier
Deal found 5/30$74
jue. 6/139:40 pmONT - ORD
1 stop6h 02mFrontier
Deal found 5/29$75
sáb. 6/159:44 amONT - ORD
1 stop9h 22mFrontier
Deal found 5/30$76
mar. 8/138:35 pmONT - ORD
1 stop6h 12mFrontier
Deal found 5/29$78
mar. 8/2712:49 amONT - ORD
1 stop22h 14mFrontier
Deal found 5/29$80
mié. 6/1212:49 amONT - ORD
1 stop21h 51mFrontier
Deal found 5/29$81
mié. 8/148:35 pmONT - ORD
1 stop6h 12mFrontier
Deal found 5/30$82
sáb. 6/159:44 amONT - ORD
1 stop9h 22mFrontier
Deal found 5/29$84
Find flights from Ontario to O'Hare Intl within your budget
Customize your flight search to find flights from Ontario to O'Hare Intl 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 2,784,634 searches. Data last updated mayo 30, 2024.
Fly from
Any airport
Fly to
Any airport
Budget
$136 - $268
Route
Depart
Return
Price
OntarioChicago O'Hare Intl
ONT - ORD
ONTORD
Ontario
lun. 9/2
1 stop17h 32m
Chicago O'Hare Intl
mar. 9/10
1 stop24h 39m
$136
OntarioChicago O'Hare Intl
ONT - ORD
ONTORD
Ontario
mar. 8/27
1 stop22h 14m
Chicago O'Hare Intl
mié. 9/4
1 stop13h 38m
$137
OntarioChicago O'Hare Intl
ONT - ORD
ONTORD
Ontario
lun. 6/10
1 stop14h 30m
Chicago O'Hare Intl
jue. 6/13
1 stop18h 56m
$138
OntarioChicago O'Hare Intl
ONT - ORD
ONTORD
Ontario
mar. 8/20
1 stop22h 14m
Chicago O'Hare Intl
lun. 8/26
1 stop24h 39m
$139
OntarioChicago O'Hare Intl
ONT - ORD
ONTORD
Ontario
lun. 6/10
1 stop9h 44m
Chicago O'Hare Intl
sáb. 6/15
1 stop12h 28m
$140
OntarioChicago O'Hare Intl
ONT - ORD
ONTORD
Ontario
lun. 6/10
1 stop14h 30m
Chicago O'Hare Intl
sáb. 6/15
1 stop12h 28m
$141
OntarioChicago O'Hare Intl
ONT - ORD
ONTORD
Ontario
lun. 6/10
1 stop14h 30m
Chicago O'Hare Intl
jue. 6/13
1 stop23h 05m
$142
OntarioChicago O'Hare Intl
ONT - ORD
ONTORD
Ontario
sáb. 8/31
1 stop6h 09m
Chicago O'Hare Intl
mar. 9/3
2 stops10h 09m
$241
OntarioChicago O'Hare Intl
ONT - ORD
ONTORD
Ontario
sáb. 6/15
1 stop7h 58m
Chicago O'Hare Intl
lun. 6/24
1 stop5h 42m
$268
How far ahead should I book a flight from Ontario to Chicago O'Hare Intl Airport?
Use this chart to determine the optimal time to book a round-trip flight from Ontario to O'Hare Intl. Price data was last updated on May 24, 2024.
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 42 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest day to fly from Ontario to Chicago O'Hare Intl Airport?
Use this chart to determine the cheapest time to fly round-trip from Ontario to O'Hare Intl. Price data was last updated on May 26, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Ontario to Chicago O'Hare Intl Airport flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Best time to book a flight from Ontario to O'Hare Intl
Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from Ontario with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Temperature and rainfall in O'Hare Intl by month
Plan your trip to O'Hare Intl by taking into account the average temperature and rainfall totals by month.
CHI Temperature | 23 - 73.4 °F |
|---|
Reviews of airlines servicing O'Hare Intl
Get insights into the airlines that provide service to O'Hare Intl. 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 O'Hare Intl. Reviews last updated mayo 30, 2024.
Read through reviews of airlines operating flights from Ontario to Chicago, such as Delta, Frontier and American Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
9,192 reviews
Boarding
8.2
Entertainment
7.3
Food
7.3
Overall
8.1
Crew
8.6
Comfort
7.9
Reviews
1 / 10
Paid a lot for our exit row seats and they weren’t that roomy.
9,192 reviews
9,192 reviews
Boarding
8.2
Entertainment
7.3
Food
7.3
Overall
8.1
Crew
8.6
Comfort
7.9
Reviews
1 / 10
Paid a lot for our exit row seats and they weren’t that roomy.
10,457 reviews
9,192 reviews
Boarding
8.2
Entertainment
7.3
Food
7.3
Overall
8.1
Crew
8.6
Comfort
7.9
Reviews
1 / 10
Paid a lot for our exit row seats and they weren’t that roomy.
10,777 reviews
9,192 reviews
Boarding
8.2
Entertainment
7.3
Food
7.3
Overall
8.1
Crew
8.6
Comfort
7.9
Reviews
1 / 10
Paid a lot for our exit row seats and they weren’t that roomy.
14,284 reviews
9,192 reviews
Boarding
8.2
Entertainment
7.3
Food
7.3
Overall
8.1
Crew
8.6
Comfort
7.9
Reviews
1 / 10
Paid a lot for our exit row seats and they weren’t that roomy.
1,476 reviews
9,192 reviews
Boarding
8.2
Entertainment
7.3
Food
7.3
Overall
8.1
Crew
8.6
Comfort
7.9
Reviews
1 / 10
Paid a lot for our exit row seats and they weren’t that roomy.
Related info for your journey
Find useful and relevant information for your journey from Ontario to O'Hare Intl. 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 Ontario to O'Hare IntlSee prices for flight routes from nearby airports that may be better suited for you.
See prices for flight routes from nearby airports that may be better suited for you.
Top 5 airlines flying from Ontario to O'Hare Intl
Discover the top 5 airlines that operate flights from Ontario to O'Hare Intl. 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 2,784,634 searches. Data last updated mayo 30, 2024.
Search flights from Ontario to O'Hare Intl by cabin class
Find flights from Ontario to O'Hare Intl, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Hourly flight availability from Ontario to O'Hare Intl
Find hourly flight availability from Ontario to O'Hare Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated mayo 30, 2024.
| 0%of flight departures | Early morningMidnight to 6 am |
|---|---|
| 0%of flight departures | Morning6 am to noon |
| 100%of flight departures | AfternoonNoon to 6 pm |
| 0%of flight departures | Evening6 pm to midnight |
Midnight
6 AM
Noon
6 PM
Book a flight to one of these trending destinations
User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations
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Can Cheapflights notify me if prices for flights from Ontario to O'Hare Intl become cheaper?
Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to O'Hare Intl from Ontario today and book when prices fit your budget.