There is no definite answer to how long you can drive with a cracked or chipped windshield. In some cases, the damage may be minor and unlikely to spread, so it's possible to drive for days, weeks, or even months without further damage. However, it is important to note that the longer you wait to repair or replace your windshield, the more dirt and dust can enter the chip or crack. This can make it difficult for the resin used to fill the chip or crack to adhere properly to the glass.
Therefore, it is best to repair or replace your windshield as soon as possible. The last thing you should know about driving with a crack or chip in your windshield is that some states require insurers to replace windshields without a deductible for cracked or chipped windshields as part of their comprehensive coverage. Leaving a chipped windshield before repairing or replacing it is not a good idea under any circumstances. The longer you leave your windshield chipped or cracked, the more damage you'll cause.
