Thursday flights are generally found to be more expensive for flights from Chicago-O'Hare Intl to Fortaleza. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Fortaleza.
It’s typically best to fly out from Chicago-O'Hare Intl to Fortaleza in the afternoon. Doing so could potentially save you 57% on the flight price compared to flying in the morning, which is usually more expensive.