Booking with British Airways 21 days in advance of your planned departure date is, on average, the best time to get cheap flights from Johannesburg OR Tambo Airport to Chicago. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Currently, the most affordable month to book a British Airways flight from Johannesburg OR Tambo Airport to Chicago in February, with an average price of R15 592. Conversely, traveling with British Airways from Johannesburg OR Tambo Airport to Chicago in July will be the most expensive, with an average cost of R16 512. Various factors influence flight prices, so comparing airlines, departure airports, and times can help reduce costs.
In terms of precipitation, rainfall in Chicago ranges from 43.0 - 125.0 inches per month. August is typically the wettest month, when rainfall can reach 125.0 mm. January is typically the driest time to visit Chicago when rainfall is around 43.0 mm.
If weather is an important factor for your trip to Chicago, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -5.0 C).
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