Buzz
Medical advice commonly advises against flying after 36 weeks of pregnancy. Despite this, every now and then, a baby might make an unanticipated appearance, adding an extra passenger to the flight roster. The stress of giving birth at 40,000 feet is only heightened when landing, as the child’s citizenship could become a complicated issue depending on the circumstances of the birth.
There is no single, global approach to determining a newborn’s citizenship. Some nations adhere strictly to the jus sanguinis (right of blood) principle, where a child’s nationality follows that of the parents. Others apply both jus sanguinis and jus soli (right of soil), granting citizenship to babies born on their land, no matter the parents' nationality. These laws are particularly common in the Americas, including the United States and Canada. With the rise of air travel, these laws now extend to the sky as well.
If a baby is born in U.S. airspace, the jus soli principle dictates that the baby will automatically receive U.S. citizenship, as confirmed by the Department of State Foreign Affairs Manual. Depending on various factors, the baby might even be eligible for dual citizenship if the parents are from a country that follows blood-based nationality rules, although this would depend on the specific countries involved.
This simplicity does not apply to a jus sanguinis nation, however. For instance, an American parent cannot secure French citizenship for their child merely because the baby was born over French airspace. The child would inherit U.S. citizenship, as the United States also typically follows jus sanguinis for children born to American citizens abroad. Since jus sanguinis is the more widely practiced principle globally, most babies born during flights over international waters or foreign airspace will likely acquire the nationality of their parents.
In situations where a child might become stateless—such as if the mother has no official nationality and the birth occurs in international airspace—the child would probably receive the nationality of the country where the plane is registered, as outlined by the United Nations’s Convention on the Reduction of Statelessness.
Despite the complexity of these laws, births during flights are exceptionally uncommon—so rare that most airlines don’t even record how many babies are born in the air. Furthermore, expecting parents are unlikely to board a flight at all, as many airlines have policies that prevent passengers from flying after reaching a certain stage in their pregnancy.
