in January, while you can score the cheapest flights to Rio de Janeiro in December. The key is booking your
April: Chicago has multiple airports to choose from, but you’ll have your pick of seats if you choose
to travel in April. While January is the cheapest month to travel almost anywhere, you
can find especially good deals on flights to Chicago in the spring.
September: August is peak vacation season in Europe, where vacation time is taken very seriously.
As a result, September is the best time for foreigners to book cheap flights.