Yes. SIA Vouchers can be combined in a single online transaction, provided that they are issued to the same email address.
Important requirement
The email address entered at checkout must match the email address to which the voucher was originally issued.
This is required for system verification.
What happens if vouchers are issued to different email addresses?
If the vouchers were issued to different email addresses:
The system will display an error message
The vouchers cannot be combined in the same transaction
Only vouchers linked to the same email can be used together
Using SIA Vouchers onboard
If redeeming onboard:
Present the QR code found in the PDF sent by Singapore Airlines
Show it to the cabin crew
The QR code will be scanned to complete the transaction
Key reminders
Email verification is mandatory for online redemption
The checkout email must match the voucher recipient email
Vouchers tied to different emails cannot be merged
Singapore Airlines Service Recovery Vouchers (SIA SRV) can only be redeemed on KrisShop.com and are not supported on the Kris+ app.