If you opt-in to flight updates (learn more here), your flights will update with key information - including scheduling changes, gates, etc.
We check upcoming flights for schedule changes once a week, and will update the flights on your itinerary accordingly. Within 24 hours of the departure, we will update any changes as they are updated from the airlines right away.
Please note, if you have added a flight to an itinerary before Nov 13, 2017, the flight will only be updated within 24-hours of the departure date. To ensure that your flights update before the 24-hour departure, you can remove the flights from the itinerary and re-add them.