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Flight Deals from Trenton Mercer Airport to Chicago Executive Airport

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Yearly Good Deal Price

Expect higher flight prices from Philadelphia to Chicago in early March and late May, while mid-August offers the best deals.

When planning your flights from Philadelphia to Chicago, consider that the most expensive times tend to be in early March and late May, with prices peaking around early March at the highest point of the year. Conversely, the low price region occurs in mid-August, where fares drop significantly, and prices remain lower through early October. Expect an abrupt transition into high prices starting from mid-March and tapering off by late May. Overall, the high season can see prices ranging from mid to high 300s, while low season fares remain under 284, providing substantial savings.

Best Time to Book

Book flights from Philadelphia to Chicago 37 days in advance for the best prices; avoid waiting to reduce costs.

When traveling from Philadelphia to Chicago, the best time to buy your flight is approximately 37 days before departure, when prices are around $158. If you wait longer, especially past 13 days before departure, prices jump significantly, potentially reaching $289 or more. Booking earlier, around 98 to 80 days before departure, can also yield competitive prices, but be mindful that purchasing too close to your departure can lead to prices skyrocketing by as much as 62%. Therefore, if your trip is less than 37 days away, it’s advisable to book immediately to avoid these escalating costs.

Flights to Chicago Executive Airport

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