PHP 3,084 Cheap Flights from Chicago to Ontario
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Flights from Chicago to Ontario
Cheap flight deals from Chicago to Ontario
We've found these cheap flights for you. You can book one-way or round-trip flight tickets.
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Round-trip
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One way
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Cheapest nonstop
ORD 7:55 PM4h 31mNonstopONT 10:26 PMChicago - Ontario | Fri, May 23 | United Airlines
SIN 4:46 PM4h 19mNonstopORD 11:05 PMOntario - Chicago | Sat, May 24 | Frontier AirlinesPHP 11,429 PHP 14,78323% OFF23% OFFPHP 14,783 PHP 11,429 -
ORD 7:55 PM4h 31mNonstopONT 10:26 PMChicago - Ontario | Sat, May 24 | United Airlines
SIN 4:46 PM4h 19mNonstopORD 11:05 PMOntario - Chicago | Wed, May 28 | Frontier AirlinesPHP 11,827 PHP 14,78320% OFF20% OFFPHP 14,783 PHP 11,827
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ORD 6:45 AM19h 14m1 stopsONT 11:59 PMChicago - Ontario | Tue, Apr 15 | Frontier Airlines
SIN 3:17 PM7h 4m1 stopsMDW 12:21 AMOntario - Chicago | Wed, Apr 16 | Frontier AirlinesPHP 4,949 PHP 14,78367% OFF67% OFFPHP 14,783 PHP 4,949 -
ORD 6:30 AM9h 42m1 stopsONT 2:12 PMChicago - Ontario | Thu, Apr 10 | Frontier Airlines
SIN 8:46 AM9h 36m1 stopsMDW 8:22 PMOntario - Chicago | Wed, Apr 16 | Frontier AirlinesPHP 5,88660% OFFPHP 14,783 PHP 5,886
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MDW 6:45 AM6h 35m1 stopsONT 11:20 AMChicago - Ontario | Tue, Apr 22 | Frontier Airlines
SIN 11:05 PM9h1 stopsMDW 10:05 AMOntario - Chicago | Thu, Apr 24 | Frontier AirlinesPHP 6,25357% OFFPHP 14,783 PHP 6,253
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MDW 6:00 AM9h 42m1 stopsONT 1:42 PMChicago - Ontario | Mon, Apr 14 | Frontier Airlines
SIN 9:09 PM6h 14m1 stopsMDW 5:23 AMOntario - Chicago | Wed, Apr 16 | Frontier AirlinesPHP 6,26957% OFFPHP 14,783 PHP 6,269
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ORD 6:45 AM28h 37m1 stopsONT 9:22 AMChicago - Ontario | Sat, Apr 12 | Frontier Airlines
SIN 2:35 PM7h 46m1 stopsMDW 12:21 AMOntario - Chicago | Tue, Apr 15 | Frontier AirlinesPHP 6,53456% OFFPHP 14,783 PHP 6,534
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MDW 6:00 AM9h 40m1 stopsONT 1:40 PMChicago - Ontario | Wed, Apr 16 | Frontier Airlines
SIN 8:45 PM16h 6m1 stopsMDW 2:51 PMOntario - Chicago | Thu, Apr 24 | Frontier AirlinesPHP 6,62055% OFFPHP 14,783 PHP 6,620
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MDW 6:15 AM9h 1m1 stopsONT 1:16 PMChicago - Ontario | Mon, May 5 | Frontier Airlines
SIN 6:35 PM8h 35m1 stopsORD 5:10 AMOntario - Chicago | Thu, May 8 | Frontier AirlinesPHP 6,70655% OFFPHP 14,783 PHP 6,706
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ORD 6:30 AM9h 27m1 stopsONT 1:57 PMChicago - Ontario | Sun, Apr 13 | Frontier Airlines
SIN 3:17 PM7h 4m1 stopsMDW 12:21 AMOntario - Chicago | Wed, Apr 16 | Frontier AirlinesPHP 6,70655% OFFPHP 14,783 PHP 6,706
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ORD 5:01 AM13h 50m1 stopsONT 4:51 PMChicago - Ontario | Fri, Apr 11 | Frontier Airlines
SIN 12:59 AM21h 16m1 stopsORD 12:15 AMOntario - Chicago | Tue, Apr 15 | Frontier AirlinesPHP 6,90153% OFFPHP 14,783 PHP 6,901
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ORD 12:40 PM27h 5m1 stopsONT 1:45 PMChicago - Ontario | Thu, May 1 | Frontier Airlines
SIN 12:59 AM16h 9m1 stopsMDW 7:08 PMOntario - Chicago | Mon, May 5 | Frontier AirlinesPHP 7,09652% OFFPHP 14,783 PHP 7,096
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CHI 1:00 PM17h 25m1 stopsONT Invalid DateChicago - Ontario | Sat, Apr 12 | Normal Airline
ONT 3:00 PM6hNonstopCHI 4:00 PMOntario - Chicago | Mon, Apr 14 | Normal AirlineFind More FlightsFind More Flights
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Cheapest nonstop
ORD 7:55 PM4h 31mNonstopONT 10:26 PMChicago - Ontario | Sat, Jun 7 | United AirlinesPHP 7,955 PHP 10,13922% OFF22% OFFPHP 10,139 PHP 7,955
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ORD 7:55 PM4h 31mNonstopONT 10:26 PMChicago - Ontario | Sat, May 24 | United AirlinesPHP 8,111 PHP 10,13920% OFF20% OFFPHP 10,139 PHP 8,111
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MDW 8:03 PM17h 23m1 stopsONT 11:26 AMChicago - Ontario | Mon, May 5 | Frontier AirlinesPHP 3,084 PHP 10,13970% OFF70% OFFPHP 10,139 PHP 3,084
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ORD 6:30 AM9h 42m1 stopsONT 2:12 PMChicago - Ontario | Thu, Apr 10 | Frontier AirlinesPHP 3,09170% OFFPHP 10,139 PHP 3,091
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ORD 9:55 AM10h 1m1 stopsONT 5:56 PMChicago - Ontario | Tue, Apr 15 | Frontier AirlinesPHP 3,12369% OFFPHP 10,139 PHP 3,123
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MDW 6:00 AM9h 42m1 stopsONT 1:42 PMChicago - Ontario | Mon, Apr 14 | Frontier AirlinesPHP 3,19369% OFFPHP 10,139 PHP 3,193
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MDW 6:15 AM8h 59m1 stopsONT 1:14 PMChicago - Ontario | Mon, Apr 28 | Frontier AirlinesPHP 3,22468% OFFPHP 10,139 PHP 3,224
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MDW 6:00 AM9h 40m1 stopsONT 1:40 PMChicago - Ontario | Wed, Apr 16 | Frontier AirlinesPHP 3,25568% OFFPHP 10,139 PHP 3,255
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ORD 7:46 PM13h 39m1 stopsONT 7:25 AMChicago - Ontario | Sat, Apr 19 | Frontier AirlinesPHP 3,33367% OFFPHP 10,139 PHP 3,333
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MDW 6:45 AM13h 12m1 stopsONT 5:57 PMChicago - Ontario | Sat, Apr 12 | Frontier AirlinesPHP 3,50565% OFFPHP 10,139 PHP 3,505
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ORD 7:44 PM13h 41m1 stopsONT 7:25 AMChicago - Ontario | Thu, Apr 17 | Frontier AirlinesPHP 3,54465% OFFPHP 10,139 PHP 3,544
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ORD 8:30 AM12h 10m1 stopsONT 6:40 PMChicago - Ontario | Thu, Apr 24 | Frontier AirlinesPHP 3,54465% OFFPHP 10,139 PHP 3,544
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CHI 1:00 PM17h 25m1 stopsONT Invalid DateChicago - Ontario | Sat, Apr 12 | Normal AirlineFind More FlightsFind More Flights
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Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.
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Frequently Asked Questions
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When are flight tickets from Chicago (CHI) to Ontario (ONT) the cheapest?
Airlines adjust prices for flights from Chicago to Ontario based on the departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays. -
How much do flights from Chicago (CHI) to Ontario (ONT) cost?
According to Trip.com's data, the lowest price is around PHP 14,855.
How to find a cheap flight from Chicago to Ontario
Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Chicago to Ontario. Book your flights at the right time and save more.
Book Early
Once prices are gone, they're gone. Lock in deals while you can!
Compare Flight Prices
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Look Out for Deals
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Check One-way Fares
Buying two cheap one-way flights can sometimes be a better deal than a round-trip.
Try Different Dates
Flying during the week, early in the morning, or late at night can help save money.
Use the Trip.com App
Save up to £10 per person when booking your flights on Trip.com
Flight Info | Chicago to Ontario
| Cheapest one-way flight price | PHP 3,083 |
|---|---|
| Cheapest round-trip ticket price | PHP 8,594 |
| Off-season for travel | September |
| Peak season for travel | November |
| Flight distance | 9,812.12 km |
| Popular airline | Frontier Airlines |
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