In 2026, you generally do not need to check in for your flight twice, but there are specific scenarios where a "secondary" check is required. If you have a connecting flight booked on a single ticket, your initial check-in usually covers all segments, and you will receive all your boarding passes at once. However, if you are traveling on separate tickets (self-transfer), you must exit the secure area, collect any bags, and check in again with the second airline. Additionally, for international travel, even if you have a digital boarding pass, you may be required to visit a "Document Verification" desk at the airport so an agent can physically inspect your passport and visa. If you have a long layover (typically over 24 hours), some airline systems will treat the second leg as a new flight, requiring a fresh check-in. Always check your airline app's "Manage Booking" section 24 hours before each departure to ensure your status is confirmed for every leg of the journey.