2023’s Top US Domestic Megahub: Chicago O’Hare Airport

Chicago O'Hare International Airport is one of the great mega hubs of the United States and is one of the busiest airports in the world. In 2023, O'Hare served almost 74 million passengers in 2023 (still down from the pre-pandemic high of 84 million). Add in nearby Chicago–Midway International Airport and the two Chicago airports served almost 100 million passengers in 2023. OAG Megahubs named O'Hare the Top US Domestic Airport Megahub in 2023, and it boasts routes to almost every corner of the United States.