The best time to book a flight to Chicago O'Hare Intl Airport with American Airlines is 42 days before departure. On average, fares are higher if you book 9 days before departure.
For Economy class flights, the cheapest month to fly this route is February. The most expensive months are November and March.
In terms of precipitation, rainfall in Chicago O'Hare Intl Airport 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 O'Hare Intl Airport when rainfall is around 43.0 mm.
If weather is an important factor for your trip to Chicago O'Hare Intl Airport, 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).
Boarding
Comfort
Food
Entertainment
Crew