Can my flight booking API collect passport details when they are required for a journey?

Yes, a flight booking API can collect passport details when they are required for the journey. This may include the passenger's full name as shown on the passport, nationality, date of birth, passport number, expiry date and country of issue.

The information needed can vary by airline, route and destination. Some airlines ask for passport details during booking, while others allow them to be added later. Domestic journeys may need less information, but the passenger's name must still match the travel document they will use.

The airline or flight supplier decides which details are required and when they must be provided. The API can return these requirements during the booking process when the supplier makes them available. If required information is missing or entered incorrectly, the airline may reject the booking or ask for the details before travel documents can be completed.

You should check which passenger fields your chosen flight suppliers support, make sure your booking form asks only for the necessary details, and remind travellers to enter their information exactly as it appears on their passport.