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SATA: New Flight Schedule Change Notifications (UN/TK)

May 19, 2026
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Dear Travel Agent,

In accordance with the new USDOT (United States Department of Transportation) regulations, SATA will implement, starting Tuesday, May 19, 2026, a new model for flight schedule change notifications (UN/TK), offering different response options to passengers.

 

As a result, new information will appear in bookings depending on the customer’s selected option.

 

Please find below the essential framework for your reference:

 

Available Options and Impact on Bookings:

 

◼ Accepted (all routes)

 

The passenger/agent/contact listed in the booking accepts the proposed change.
→ A remark (RM) will be automatically inserted into the booking, as in the example:
SCHEDULE CHANGE ACCEPTED ON 13 MAY 2026

 

Expected action:

  • Changes made within 15 days BD (before departure): the system will automatically revalidate the ticket;
  • Changes made between 15- and 30-days BD: SATA support teams will process ticket updates;
  • Changes made more than 30 days BD: ticket updates are pending your contact with the usual support channels.


Note: Reissuance under involuntary conditions is still permitted in cases involving Interline flight segments because of information synchronization constraints, as per the previously established procedures.


 

◼ Refund Accepted (only for bookings with flights to/from the USA

The passenger/agent/contact listed in the booking chooses a refund.
→ A Special Service Request (SSR) will be automatically inserted into the booking, as in the example:
SCHG REJECTED S4280 RFND RQST ON 13 MAY 2026

 

Expected action:

  • The agency must proceed with the refund (INVOL) and cancel the segments according to the procedures already defined and available at sata4agents.pt;
  • Compliance with USDOT deadlines for flights to/from the USA:
    - 7 business days for tickets paid by credit card;
    - 20 calendar days for other forms of payment.

 

◼ ALT Request (USA routes only)

 

The passenger requests an alternative.
→ A Special Service Request (SSR) will be automatically inserted into the booking, as in the example:
SCHG REJECTED S4280 ON 13 MAY 2026 PAX RQST NEW OPTION

 

Expected action:

  • The agent must check alternatives together with the customer;
  • Contact the usual support channels for ticket updates.

 

Important Notes

  • In cases of Refund and ALT Request, the passenger will be informed that they must contact their issuing agent;
  • Additional communication may be sent to the agency by SATA to ensure compliance with applicable deadlines;
  • We recommend regularly checking your queues to identify these situations and act accordingly.

 

For any further clarification, we remain at your disposal.