When you want to book the tickets for cheap flights. You start looking for them. However, you can certainly keep an eye on them every day. So, why don’t you let Google flights do it for you? When you enable it while searching for the trip. It begins to send you alerts regarding the fares everyday or when there is a change in the price. The only condition is you need a Gmail account for getting the alert.
Date Grid - So, the date Grid is similar to a calendar. However, in the date grid, you can see all the fares for various dates at once. You can change the departure and return, both at the same time. The average prices are in black, Cheap ticket is in Green color, and the higher prices are in red. The benefits of this feature are to compare all the fare with multiple dates at once.