More than likely that person's account is set to u0022Private.u0022 If that's the case it should give you a message stating only those who are friends with that person can see the content.u003cbru003eu003cbru003eIf you're not seeing the airplane icon we've discussed check that your Instagram app has the latest updates. As mentioned above, some users didn't get the option to repost stories when others did. Updating your app may allow you to repost.u003cbru003eu003cbru003eAnother reason you may not be able to repost someone else's story is that Instagram is preventing you from doing so. Whether you've violated community guidelines or for some other reason, you may want to reach out to Instagram support if you aren't able to repost stories when you know you should.