An open airline ticket (or "open-ended ticket") is a travel document that allows you to fly between two specific destinations without a fixed departure date or time. These tickets are typically valid for a set period, often up to 12 months from the date of purchase. They are highly valued by long-term backpackers or business travelers who need maximum flexibility and do not want to be tied to a strict itinerary. To use an open ticket, you must contact the airline or travel agent to "book" your seat once you have decided on a travel date, subject to availability. Because they offer such high flexibility, open tickets are significantly more expensive than standard "restricted" tickets. In 2026, they are less common than they were in the past, as many travelers now prefer to buy "flexible" or "changeable" fares, but they still exist as a niche product for specific round-the-world itineraries or luxury corporate travel.