It is always a good idea to check the status of your flight before you leave for the airport and when you arrive. Last minute changes can happen from time to time, due to things like bad weather or mechanical issues.
You should be able to check your flight's status on the airline's main web page or the airport's website. We recommend keeping an eye on those big screens in the airport while waiting for connecting flights! Some airlines offer a flight status text alert feature which you can sign up for when managing your booking on their website.