Flight Deals from Chicago Executive Airport to San Francisco
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Yearly Good Deal Price
Peak prices from Chicago to San Francisco occur in late March, while the lowest prices are found in early September.
When planning your flights from Chicago to San Francisco, it's essential to consider seasonal price variations. The largest peak price occurs in late March, where fares can reach their highest around $469. In comparison, you'll find the most affordable prices around early September, with rates dropping to about $296. Typically, high season runs from mid-March to late July, averaging between $394 and $469, while low season spans from late September to early February, with prices generally under $335. Abrupt transitions into high prices start in early March, while low prices begin at the end of September.
Best Time to Book
Book your flight from Chicago to San Francisco 36 days in advance for the best prices; buy last minute and face significant increases.
When planning your trip from Chicago to San Francisco, the ideal time to buy your flight is around 36 days before departure when prices are at their lowest, typically around $220. If you purchase your ticket too early, prices can spike to about $344, a significant increase. As your departure date approaches, particularly within the last 13 days, you'll notice prices rising sharply from approximately $285 to $398. For optimal savings and peace of mind, aim to book at least 36 days ahead or between 112 to 106 days prior for favorable prices and better seat options. However, if your travel date is less than 36 days away, it's best to purchase your ticket immediately to avoid even higher prices.
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