Delta Air Lines has issued a waiver code to provide customers with additional flexibility when purchasing a Delta Main Basic (formerly known as Basic Economy) fare for tickets issued before November 6, 2025*. This waiver allows customers to apply a wholly unused Delta Main Basic ticket toward the purchase of a new reservation (either another Delta Main Basic fare or a fare in Delta Main, Delta Comfort, Delta Premium Select, Delta First, or Delta One) less a cancellation charge.

To qualify, the reservation associated with the original Delta Main Basic ticket must be canceled prior to departure; failure to do so will result in forfeiture of the full value of the ticket.

*Tickets issued on/after November 6, 2025 no longer require this waiver code as fare rules have been updated to allow repricing in the GDS.

Applicability

• Applies to wholly unused tickets issued before November 6, 2025
  • Ticket validity on the original ticket must still be met
  • Please note: Delta Main Basic cancellation charge exception does not apply in all markets. Check the fare rules for details.
  • If no Delta Main Basic cancellation charge is listed in the fare rule, then no changes or cancellations are permitted to Delta Main Basic tickets in that market.
  • Applies when the Penalty rule indicates “TRAVEL AGENT REDEMPTION - REFER TO DELTA PROFESSIONAL FOR ADDITIONAL INFORMATION. WAIVER CODE REQUIRED.”

Reissue Guidelines

• The value of an unused Delta Main Basic ticket may be applied toward another Delta Main Basic fare or a fare in Delta Main, Delta Comfort, Delta Premium Select, Delta First, or Delta One less the cancellation charge.
• The cancellation charge must be collected at time of reissue and noted as a penalty in the exchange transaction
  • Please refer to the fare rule to determine the cancellation charge amount
• Add-collect any difference in fare; if the new fare is lower in value, a voucher may be issued for the residual value
  • U.S.-based travel agencies that settle through Airline Reporting Corporation (ARC) may issue a residual value MCO
  • Travel agencies that report via Billing & Settlement Plan (BSP) must contact Delta for all Residual Value Non-Refundable transactions; please contact Global Sales Solutions or Delta Reservations for assistance
• When reissuing the ticket, enter the waiver code 5AI4O in the ticket designator box on the new ticket
  • If there is an existing ticket designator, place the waiver code in the tour code box
  • If both the ticket designator and tour code boxes are being used, then place the waiver code in the first position of the endorsement box
• Failure to deduct the Cancellation Charge and/or include the waiver code on the ticket as noted above may result in a debit memo for failing to properly document the ticket
• The original non-refundable value carries over to the new ticket; note this amount in the endorsement box