Missing a flight is read as anxiety about a big transition slipping away. Tradition links it to self-doubt, overload, or a part of you that is not quite ready to go. Running through the airport and watching the gate close is usually read as pressure from too many demands at once. Losing your passport or ticket on the way points to feeling unprepared or unsure of who you are in the new situation. Arriving to see the plane leave without you can carry a hidden relief as well as regret. It can help to ask which departure in your waking life feels rushed.
Has this come up in your dreams before? What was going on in your life then?
My Cosmic Code has a private dream journal. Write a dream down and the app picks out the symbols in it, shows what dream books say about them and, over time, which words recur across your entries. The journal is stored on your device only.