No one wants to see that happen, but in case it does, travelers who have a contingency plan ready to put into action will have the best chance of getting where they need to go. Don't wait to make changes at the airport. Before booking a future flight, find out which airlines fly to your destination, and consider choosing an airline that isn't facing a potential strike. Non-striking carriers usually will try to accommodate you, but will give preference to their own ticket holders first. If your airline strikes and you can't make alternate arrangements, you can notify your credit card company to credit your account for the fare.
Most tickets are good for one year from date of issue.