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Flights from Ontario to Chicago from $39

Discover affordable flights from Ontario to Chicago with prices starting from $269. Book your journey today!
Ontario

ONT

Chicago

MDW

12/02/202512/09/2025

Cheap flight deals from Ontario to Chicago

Average price start from:
i

$110

Round-trip flights from Ontario to Chicago starting at $110. Book now for the best deals!

One-way from:
i

$39

One-way flights from Ontario to Chicago starting at $39. Great for flexible travel!

Cheapest day:
i

Tuesday

Tuesday is the cheapest day to fly from Ontario to Chicago. Save more by booking on this day!

Cheapest In:
i

$88

Sep 2025

Sep 2025 is the cheapest month to fly from Ontario to Chicago with prices starting at $88.

Find flight deals from Ontario to Chicago

Cheapest flights from Ontario to Chicago

ONEWAY FLIGHTS

LAST MINUTE

CHEAP FLIGHTS

BEST FLIGHTS

Explore the cheapest oneway flights from Ontario to Chicago spotted daily.

ONT

Ontario

ONT - Ontario2025-12-02 • 09:00

Unknown

60 min

MDW

Unknown City

$39

Non-stop60 min

ONT

Ontario

ONT - Ontario2025-12-02 • 09:00

Unknown

60 min

ORD

Unknown City

$42

Non-stop60 min

ONT

Ontario

ONT - Ontario2025-12-02 • 09:00

Unknown

60 min

STL

Unknown City

$55

Non-stop60 min

ONT

Ontario

ONT - Ontario2025-12-02 • 09:00

Unknown

60 min

ORD

Unknown City

$105

Non-stop60 min

ONT

Ontario

ONT - Ontario2025-12-02 • 09:00

Unknown

60 min

ORD

Unknown City

$114

Non-stop60 min

ONT

Ontario

ONT - Ontario2025-12-02 • 09:00

Unknown

60 min

MDW

Unknown City

$129

Non-stop60 min

ONT

Ontario

ONT - Ontario2025-12-02 • 09:00

Unknown

60 min

ORD

Unknown City

$129

Non-stop60 min

ONT

Ontario

ONT - Ontario2025-12-02 • 09:00

Unknown

60 min

MDW

Unknown City

$134

Non-stop60 min

ONT

Ontario

ONT - Ontario2025-12-02 • 09:00

Unknown

60 min

ORD

Unknown City

$144

Non-stop60 min

ONT

Ontario

ONT - Ontario2025-12-02 • 09:00

Unknown

60 min

ORD

Unknown City

$160

Non-stop60 min

ONT

Ontario

ONT - Ontario2025-12-02 • 09:00

Unknown

60 min

STL

Unknown City

$171

Non-stop60 min

ONT

Ontario

ONT - Ontario2025-12-02 • 09:00

Unknown

60 min

ORD

Unknown City

$192

Non-stop60 min

Price Trends & Analysis

Monthly Price Trends

Lowest fares from Ontario to Chicago typically available in February.

Weather & Climate Information

Temperature

Chicago experiences a humid continental climate, with winter temperatures averaging 20°F to 30°F and summer temperatures ranging from 70°F to 90°F. The best times for comfortable travel are late spring (May to June) and early fall (September to October), when temperatures are mild and rainfall is moderate.

Rainfall

The best time to visit Chicago is during late spring (May to June) or early fall (September to October), when the weather is mild and pleasant. These months also feature vibrant local events, such as the Chicago Blues Festival and the Chicago Gourmet, making for an enjoyable experience without the summer tourist crowds.

Airlines at MDW

Experience seamless travel from Ontario to Chicago with trusted airlines like Frontier Airlines, United Airlines, Delta Air Lines, American Airlines. These carriers ensure reliable connections and flexible scheduling options for travelers. Flight duration typically ranges around 10-15 hours, with most routes including one stopover in major aviation hubs. For your trip from Ontario to Chicago, these airlines offer modern amenities and professional service to make your journey comfortable and enjoyable.

Places to Visit in Chicago

Chicago, the Windy City, enthralls visitors with its stunning skyline and vibrant cultural tapestry. Stroll along the iconic Magnificent Mile, indulge in deep-dish pizza, and immerse yourself in the rich history of jazz and blues at legendary venues. With world-class museums like the Art Institute and the historic architecture of the Loop, Chicago promises an unforgettable experience that blends urban sophistication with a warm Midwestern spirit, inviting travelers to explore its diverse neighborhoods and dynamic arts scene.

About Chicago

Travel to Chicago from Ontario for an unforgettable experience. This vibrant destination offers a perfect blend of culture, history, and modern attractions. The best time to visit is during off-peak seasons for better deals and fewer crowds.

Airlines Flying from Ontario to Chicago

Experience seamless travel from Ontario to Chicago with trusted airlines like Frontier Airlines, United Airlines, Delta Air Lines, American Airlines. These carriers ensure reliable connections and flexible scheduling options for travelers. Flight duration typically ranges around 10-15 hours, with most routes including one stopover in major aviation hubs. For your trip from Ontario to Chicago, these airlines offer modern amenities and professional service to make your journey comfortable and enjoyable.

Hotels in Chicago

If you're traveling to Chicago and need convenient accommodations near MDW Airport, several excellent hotel options are available. These hotels near Chicago airport not only provide easy access for travelers but also ensure a comfortable experience. When planning your trip, be sure to check for shuttle services and book in advance for the best rates.
Hotel

Hotel

Category: Standard

Comfortable accommodations with modern amenities.

Location: Near airport

Hotel ID:

About Chicago

Travel to Chicago from Ontario for an unforgettable experience. This vibrant destination offers a perfect blend of culture, history, and modern attractions. The best time to visit is during off-peak seasons for better deals and fewer crowds.

Places to Visit in Chicago

Chicago, the Windy City, enthralls visitors with its stunning skyline and vibrant cultural tapestry. Stroll along the iconic Magnificent Mile, indulge in deep-dish pizza, and immerse yourself in the rich history of jazz and blues at legendary venues. With world-class museums like the Art Institute and the historic architecture of the Loop, Chicago promises an unforgettable experience that blends urban sophistication with a warm Midwestern spirit, inviting travelers to explore its diverse neighborhoods and dynamic arts scene.

Hotels in Chicago

If you're traveling to Chicago and need convenient accommodations near MDW Airport, several excellent hotel options are available. These hotels near Chicago airport not only provide easy access for travelers but also ensure a comfortable experience. When planning your trip, be sure to check for shuttle services and book in advance for the best rates.
Hotel

Hotel

Category: Standard

Comfortable accommodations with modern amenities.

Location: Near airport

Hotel ID:

Airlines Flying from Ontario to Chicago

Experience seamless travel from Ontario to Chicago with trusted airlines like Frontier Airlines, United Airlines, Delta Air Lines, American Airlines. These carriers ensure reliable connections and flexible scheduling options for travelers. Flight duration typically ranges around 10-15 hours, with most routes including one stopover in major aviation hubs. For your trip from Ontario to Chicago, these airlines offer modern amenities and professional service to make your journey comfortable and enjoyable.

Frequently Asked Questions

What's the lowest price for flights from Ontario to Chicago?

You can find flights starting from $39. For better deals, book during February and choose Tuesday departures.

How long is the journey from Ontario to Chicago?

The average flight time is about 10-15 hours, with most routes including one stopover for better pricing and comfort.

What airlines operate flights on this route?

Several airlines serve this route including Frontier Airlines, United Airlines, Delta Air Lines. Research current schedules and compare prices for the best deal.

How far in advance should I book?

For the best prices, book 2-3 months ahead and consider traveling during February when prices are typically lower.

What accommodation options are near MDW Airport?

MDW Airport has several nearby hotels with shuttle services, making it convenient for travelers with early or late flights.

What attractions can I visit in Chicago?

Chicago features a wonderful combination of historical sites and modern attractions. The best time to visit is during pleasant weather months for optimal sightseeing.

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