Most airline tickets are confirmed instantly or within 30 minutes of purchase when booked directly through an airline's website or app. Once the payment is processed, the system generates a 13-digit ticket number and a 6-character PNR (Passenger Name Record), which are sent to your email. However, if you book through a third-party Online Travel Agency (OTA) like Expedia or Skyscanner, it can take anywhere from 2 to 24 hours for the agency to "ticket" your booking with the airline. In 2026, a "Confirmation of Booking" is not the same as a "Confirmed Ticket"; you must ensure you have received the actual ticket number. If you haven't received it within 24 hours, you should contact the provider immediately. Delays can occur if there is a mismatch in your credit card details or if the airline's "Fraud Prevention" system flags the transaction for manual review. Always check your "Spam" folder, as these automated confirmation emails are frequently filtered out by major email providers.