Flights from Chicago to Ontario
CHI
Chicago
23h 20m avg
ONT
Ontario
Flights from
$186
Compare 1 options across 1 airline
Updated 2 months ago
$186
Cheapest Flight
$186
Average Price
0
Direct Flights
1
Airlines
Compare All CHI to ONT Flights
Prices are per person for one-way travel. Click “Book” to complete your reservation on the partner site.
1 of 1 flight
| Airline | Schedule | Stops | Duration | Price | |
|---|---|---|---|---|---|
F9
F9 · 1483
|
21:37
CHI
20:57
ONT
|
0 stop(s) | 23h 20m | $186 Best | Book → |
No flights match the current filters. Try clearing them.
Airport Information
Key details about departure and arrival airports for this route
ONT
Ontario International Airport
City: Ontario
Country: US
Type: Large Airport
Elevation: 944 ft
ONT Airport Guide →
Country: US
Type: Large Airport
Elevation: 944 ft
Tips for Chicago to Ontario Flights
Save money and travel smarter with these route-specific tips
When to Book
Book CHI–ONT flights 6–8 weeks in advance for the best prices. Last-minute fares are typically 40–60% more expensive on this route.
Price Trends
The average fare is $186, but prices as low as $186 are available.
Direct vs Connecting
No direct flights currently listed. Consider flexible dates or nearby airports for better connections.
Flexible Dates
Flying midweek (Tuesday–Thursday) on CHI–ONT is typically 15–30% cheaper. Use our price comparison to spot the best day to fly.
Frequently Asked Questions
Everything you need to know about flying CHI to ONT
What is the cheapest flight from Chicago to Ontario?
The cheapest flight from Chicago (CHI) to Ontario (ONT) currently starts at $186 with F9. Prices are updated regularly and may vary by date and availability.
How many airlines fly from CHI to ONT?
We found 1 airline(s) operating on the CHI–ONT route, including F9.
Are there direct flights from Chicago to Ontario?
No direct flights are currently listed on this route. All available options involve at least one stop. Consider flexible dates or nearby airports for better connection options.
What is the average flight price on this route?
The average flight price from Chicago to Ontario is approximately $186. Prices range from $186 to $186 depending on airline, time, and class.
How long is the flight from CHI to ONT?
The average flight duration from Chicago to Ontario is approximately 23 hours 20 minutes. Direct flights are typically shorter than connecting options.
What is the baggage allowance on CHI–ONT flights?
Baggage allowance varies by airline and fare class. Most economy fares on this route include 1 carry-on (7–8 kg) and 1 checked bag (20–23 kg). Always confirm baggage rules on the airline's site at booking — low-cost carriers may charge for checked bags.
From
$186
Book Cheapest →
Other Flights from Chicago
Explore more destinations departing from CHI