Refund Request & Timing

You can submit a refund request via Email
If you fail to fly (no-show) or request the refund on or after the flight date, a no-show fee may apply.
If your booking was made through a travel agency, you often must request the refund through that agency.

Fare Class & Ticket Conditions

Some tickets (especially discounted, promotional, or non-refundable fares) may not allow refunds at all (or only allow partial refunds after penalty deductions).
The terms and penalties (cancellation fees, percentage deducted, etc.) depend on your fare class / ticket conditions.
For instance, promotions or "lowest fares" are commonly non-refundable in many airlines, and Ethiopian likely has similar fare-based rules.

Schedule Changes & Airline-initiated Cancellations

If the airline changes your schedule or cancels your flight, you are often entitled to a refund (or re-routing / alternative) rather than you having to use your ticket.
Also, extra services (seat selection, baggage, WiFi, etc.) you purchased may be refundable if the service is impacted.

Processing Time & Irrevocability

Once you submit a refund request, the process is irreversible. Be sure to check details before submitting.
The time taken to process a refund may vary (some sources say 7–10 business days, but in practice delays can occur).

Special 24-Hour Rule (if applicable)

Some sources state that if you cancel within 24 hours of booking (especially via online channels), you may be able to get a full refund (depending on route and ticketing rules).
However, this is not always guaranteed, and depends on the fare rules (not all tickets are covered). Always check your ticket's specific policy.