$91 Cheap flight deals from Chicago (CHI) to Adelanto (ONT)
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This Weekend's Flight Deals from Chicago to Adelanto
This weekend's flight prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.
Airfares from $91 One Way, $182 Round Trip from Chicago to Adelanto
Prices starting at $182 for return flights and $91 for one-way flights to Adelanto were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.
Adelanto economy flight packages
Everhome Suites San Bernardino - Loma Linda
Feb 8 - Feb 15
Chicago (ORD) to Ontario (ONT)
Reviewed on Nov 8, 2025
The Mission Inn Hotel & Spa
Feb 5 - Feb 8
Chicago (CHI) to Ontario (ONT)
Reviewed on Nov 9, 2025
More About Flying To Adelanto from Chicago
Route Information for Flights from Chicago to Adelanto
Origin Airport IATA Code | CHI |
|---|---|
Destination Airport IATA Code | ONT |
Distance | |
Direct Flight Airlines | |
Earliest Flight Arrival | |
Latest Flight Arrival |
Chicago to Adelanto
Orbitz is your one-stop source for great online deals on {origin.name} to Adelanto flights. With our cutting-edge mobile tools and low fares, you are never far from finding fantastic savings on flights from Chicago to Adelanto.
Unbeatable Deals for Flights From Chicago to Adelanto
If you are looking for the cheapest {origin.name} to Adelanto flights, you can save your money and your sanity by booking your air fare through Orbitz. Our low price guarantee for international and domestic flights leaves more money in your wallet to spend on activities, restaurants, attractions, and other adventures in your destination.
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Don't Miss Out on Frequent Flyer Points
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Easy Flight Cancellation
In most cases, you can cancel flights from Chicago to Adelanto online with the same ease as you booked them.
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Adelanto Airports
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Fare, taxes & fees: Fares include all taxes and fees, except baggage fees. Rates shown reflect fares found by other Orbitz users over the past 7 days. Due to rapidly changing airline prices & seat availability, these fares may no longer be available.
Refunds/changes/cancellations: Itinerary changes, if permitted for the fare, will have a $30 service fee charged by Orbitz. Additional airline charges may apply.
Other conditions: Schedules, fares and rules are subject to change without notice. Seats are limited and may not be available on all flights/dates or in all markets. Lower fares may be available. Fares will not be honored retroactively or in exchange for any wholly/partially unused ticket. Tickets are non-transferable and non-refundable. Fare rules are provided for the selected itinerary before booking.