5 Important Notes When Checking In Online via the TravelDoc ADC

Vietnam Airlines’ implementation of the TravelDoc ADC (Automatic Document Check) automated entry requirement verification system on its website, mobile app, and self-service check-in channels helps passengers become more proactive before international flights. However, to ensure a smooth online check-in process, passengers should pay close attention to important information regarding passports, visas, and entry requirements for each destination.

To prepare all necessary documents in advance, passengers are encouraged to review entry requirements at https://vietnamairlines.traveldoc.aero/. Checking before departure helps passengers clearly understand passport, visa, and transit document requirements for their itinerary.

Do not overlook visa or residence permit information

The TravelDoc ADC system automatically verifies entry requirements based on nationality, itinerary, visa requirements, and supporting documents. If required visa or residence permit information is incomplete, online check-in cannot be completed.

Common issues include missing visa/residence permit details, insufficient passport validity, unmet entry or transit requirements, or missing return/onward tickets.

For itineraries where visa information has already been updated in the booking, passengers may continue the check-in process as usual. However, if the system requests additional document information, passengers must complete the required steps before receiving their boarding pass.

In some cases, the system may return a “Conditionally Accepted” result, meaning additional document verification is required before passengers are confirmed eligible to board.

Pay special attention to international connecting itineraries

For international connecting journeys, entry requirements are checked for the entire itinerary, including transit points and final destinations. Many passengers only verify entry conditions for the final destination and overlook transit country requirements. Depending on current regulations, some countries may require additional visas, permits, or onward/return tickets.

Vietnam Airlines recommends passengers review entry requirements for all countries in their itinerary before checking in online to avoid travel disruptions.

Review all information carefully before confirmation

After entering passport and entry document information, passengers should carefully review all data before completing check-in. Errors in passport, visa, or entry documents may prevent the system from verifying eligibility or completing online check-in.

If information on travel documents does not match the system data, passengers may need to undergo additional verification at the airport. For assistance, passengers may contact the Vietnam Airlines Customer Care Center at 1900 1100, via Zalo at https://zalo.me/3149253679280388721, or through the official Vietnam Airlines Facebook Fanpage.

Vietnam Airlines recommends passengers complete document checks and online check-in early, especially for international itineraries with specific entry requirements.

Not all passengers are eligible for online self-check-in

Although the automated verification system simplifies the check-in process, some passengers are still required to complete procedures directly at the airport counter for document verification and support.

These cases include passengers using special travel documents instead of ordinary passports, itineraries requiring additional verification, or cases where the system returns a “Conditionally Accepted” result.

In addition, passengers who have checked in online but need to check baggage or request airport assistance will still have their entry documents verified again by airport staff in accordance with regulations.