
$30 Cheap flight deals from Philadelphia (ILG) to Oak Brook (CHI)
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This Weekend's Flight Deals from Philadelphia to Oak Brook
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 $30 One Way, $67 Round Trip from Philadelphia to Oak Brook
Prices starting at $67 for return flights and $30 for one-way flights to Oak Brook were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.
Oak Brook economy flight packages

Pendry Chicago
Jan 24 - Jan 26
Philadelphia (PHL) to Chicago (ORD)
Chicago (ORD) to Philadelphia (PHL)
Reviewed on Jul 5, 2024

The Royal Sonesta Chicago Downtown
Jan 24 - Jan 27
Philadelphia (PHL) to Chicago (ORD)
Chicago (ORD) to Philadelphia (PHL)
Reviewed on Dec 22, 2025

Chicago Athletic Association, a Hyatt Hotel
Feb 2 - Feb 5
Philadelphia (PHL) to Chicago (ORD)
Reviewed on Aug 14, 2025
More About Flying To Oak Brook from Philadelphia
Route Information for Flights from Philadelphia to Oak Brook
Origin Airport IATA Code | ILG |
|---|---|
Destination Airport IATA Code | CHI |
Distance | |
Direct Flight Airlines | |
Earliest Flight Arrival | |
Latest Flight Arrival |
Philadelphia to Oak Brook
When you’re searching for Philadelphia to Oak Brook flights for your family vacation, check out the guaranteed low prices at Orbitz. If you are looking for the best prices on hotels too, you’ll be sure to find great deals to suit your budget. You’ll also benefit from the following features:
Suitable Schedules
Orbitz simplifies the process of finding and booking budget flights from Philadelphia to Oak Brook. Since we monitor hundreds of flight fares, you can compare several flights from a range of different airlines to find the best fares and most suitable departure and arrival times. Mix and match your departure and return flight for even more discounts and travel flexibility.
Mobile Apps
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Flight Alerts
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Miles and Points
If you travel regularly, you can still earn miles and points when you book qualifying Philadelphia to Oak Brook flights. Enter your frequent flyer number with your reservation to see the miles rack up.
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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.



