What's the cheapest day to fly in December?

We don't have enough real fare data for December to identify a cheapest weekday.

Is December a good time to visit Chicago?

Check the real weather data above for Chicago in December — we don't have crowd or event data to add beyond that.

Should I book now or wait?

There's no reliable way to predict whether a specific fare will rise or fall. If the real December fares above already fit your budget, booking removes the risk of the price changing.

Search Paris → Chicago in December

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Flights from Paris to Chicago in December

Planning a trip from Paris to Chicago in December? Find the best flights and seasonal tips. Flight time: 8h 20m.

Flying in December

Chicago typically sees daytime highs around 3°C and overnight lows around -3°C in December, based on the last 3 years. Expect roughly 65 mm of rain across the month.