Flight Deals from Chicago to Serbia from $726

Flying from Chicago to Belgrade is most expensive in late June and cheapest in early January.

If you're planning to fly from Chicago to Belgrade, you'll find that prices vary significantly throughout the year. The highest prices occur during the peak summer season, particularly around late June when fares approach their maximum. A notable low price period is seen in early January, where ticket prices drop considerably. The high season lasts from mid-June to late August, with prices frequently exceeding the high range, while the low season spans early January through early March, with average fares substantially lower. Observing these trends can help you find the best times to book your flights.

Best to buy flights from Chicago to Belgrade 45-58 days before departure to avoid higher prices.

To secure the best fares from Chicago to Belgrade, aim to buy your tickets between 45 to 58 days before departure, when prices hover around $827. The cost tends to rise significantly if you book earlier, with prices reaching $1,033. Although prices can remain low until about 40 days prior to your departure, waiting too long is risky as fares generally spike and exceed $994 closer to departure. Booking well in advance, around 180 to 171 days, can also yield favorable prices and better seat selection. Avoid purchasing if the trip is within 40 days to avoid higher prices.