• Travel agencies will have the option to sell Ancillaries SKY (seats, cabin baggage and hold) through their GDS, both Sabre and Amadeus, only for initial sale (IS), within the same day of ticket issuance, and post-issuance (MMB), as of the day after the ticket is issued. The option is waived during the check-in process (72 hours prior to flight departure), which must be done directly with SKY. 
• The time limit for EMD issuance is 12 hours. If the EMD is not issued within this time limit, the service will be automatically cancelled.
• The sale of these products must be reflected through an EMD-A and under the same plate as the original ticket (605). 
• Agencies using Amadeus GDS will be able to sell ‘carry-on’ through the “Travel Services” item in their GDS. 
• The sale of ancillaries on itineraries operated by H8 (LIMMIALIM route) cannot be booked through GDS and can only be done directly with SKY until further notice. 
• The sale of ancillaries must be made by OD (origin/destination), with the exception of seats, which must be sold by segment. 
• The values of each ancillary will be published dynamically in the GDS. The Ancillaries do not allow returns.
  • Exceptions: involuntary changes, name change, route change and retraction, depending on the process of each scenario, where a new EMD-A will be generated.

For the rest of the Special Services (UMNR, AVIH, PETC, etc.) that have a cost associated with them, the travel agent must request it through Agency Support or the passenger may request it through SKY's direct service channels.

The travel agent must request the appropriate WCH service (WCHR, WCHS, or WCHC) through an SSR, including an informative message of the reason for requesting the service. The request must be made up to 48 hours before the departure of the flight. Confirmation will be automatic.

If you are a non-IATA agency, you can request a wheelchair using the form: https://mmb.skyairline.com/en/unitedstates/contact-form, select the option Subject: Additional Products and Services - Specification: Wheelchair.