Short answer: a void cancels a ticket shortly after issue as if it never existed; a refund returns money for an unused or partly used ticket according to its fare rules; a reissue exchanges the ticket for new travel, collecting any fare difference and change penalty. Which options exist, and what they cost, is written in the fare rules attached to the fare at booking time, unless the airline caused the disruption, in which case the passenger's rights improve sharply.
Void, refund, reissue: three different things
Agents and customers often say "cancel" for all three, but the mechanics, costs and deadlines are entirely different:
| Action | What happens | Typical cost to passenger | Time frame |
|---|---|---|---|
| Void | The ticket is cancelled within the settlement system's void window, usually same day or the next reporting day, and is treated as never issued. | Usually nothing, though some markets and carriers apply conditions. | Very short: hours, not days. Check your BSP or ARC reporting calendar. |
| Refund | The unused value of the ticket is returned via the original form of payment, minus any cancellation penalty and non-refundable amounts. | Whatever the fare rules say: from zero on flexible fares to fully non-refundable, with taxes often refundable separately. | Processed any time before the ticket expires, commonly within one year of issue; money takes days to weeks to land. |
| Reissue / exchange | The ticket is exchanged for new flights. The agent collects fare difference plus any change fee, or holds residual value per the rules. | Change penalty plus fare difference, or nothing on flexible fares. | Before or sometimes after no-show, per the fare rules; no-show usually makes everything worse. |
The void window is the cheapest mistake-eraser in air ticketing: catch a wrong name or date on the day of issue and it costs nothing; catch it tomorrow and it may be a penalty-bearing reissue. Well-run agencies build a same-day QC check on every issued PNR precisely because of this window.
Fare rules decide everything voluntary
When the passenger initiates a change or cancellation, the contract that governs it is the fare rules of the specific fare purchased, not airline policy in general. Two passengers on the same flight can have completely different rights because they bought different fare classes. The rules are filed with the fare and specify, among other things, whether cancellation is permitted and at what penalty, whether changes are permitted, at what fee, before or after departure, whether a no-show forfeits value, and which parts (base fare versus carrier surcharges versus taxes) are refundable.
Agents read these in the GDS fare rules display (the penalties and voluntary-changes categories) or, increasingly, receive them as structured data in NDC and API responses. Two practical habits prevent most losses: quote the penalty from the rules at the moment the customer asks, not from memory of similar fares, and re-price the exchange in the system's repricing tool rather than by hand, because reissue arithmetic (fare difference, penalty, residual value, tax adjustments) is exactly the kind of calculation that generates airline debit memos when done manually. If you are unfamiliar with debit memos, read our guide to what an ADM is; incorrect refunds and exchanges are among the most common causes.
Involuntary changes: when the airline moves first
Everything changes when the disruption comes from the airline: a cancellation, a significant schedule change or retiming, a route withdrawal. Passengers are then generally entitled to rebooking or a refund without penalty, under the airline's own involuntary policies and, in many markets, under consumer protection law. Two named regimes worth knowing:
- United States. The US Department of Transportation's 2024 refunds rule requires airlines and ticket agents to provide prompt, automatic refunds to the original form of payment when a flight is cancelled or significantly changed and the passenger does not accept the alternative offered, with defined processing timelines (DOT names seven business days for credit card payments). DOT has continued rulemaking in this area since, so check the current text on transportation.gov when handling US sales.
- European Union. Regulation EC 261/2004 covers denied boarding, cancellations and long delays, with rebooking, refund and, in defined cases, compensation obligations on the operating carrier.
- India. DGCA's Civil Aviation Requirements set out refund obligations and timelines for Indian carriers, including refund of statutory taxes even on non-refundable fares.
For the agency, the operational rule of thumb is: never charge your own change fee on an involuntary case without a clear, disclosed policy, and always process the involuntary exchange or refund under the airline's involuntary procedure (waiver codes, schedule change policies) so the penalty logic is switched off. Applying a voluntary exchange to an involuntary situation overcharges the customer and invites both complaints and memos.
How agents process each case
The flow below is what actually happens inside an agency, whether the tickets were issued in-house or through a partner:
Mechanically: IATA agents process refunds through the GDS's refund transaction or through BSPlink refund applications, and the amounts wash through the next settlement cycle; ARC handles the equivalent in the US market. Reissues are done in the GDS exchange workflow, which reprices the new itinerary against the old ticket and produces a new ticket number linked to the original. NDC orders follow the airline's order-change flow through the same API integration that made the sale.
Working through consolidators and APIs
Agencies without their own IATA plate sell through consolidators, and that inserts one more hop into every service action: you raise the void, refund or reissue request with the consolidator, on their deadlines, and they execute it on the airline side. Three consequences matter. Deadlines shrink, because the consolidator needs working-time to act before the airline's own cut-off. Fees stack, because the consolidator's service fee sits on top of the airline penalty, and your own fee sits on top of that; all three must be disclosed to the customer. And speed depends on integration: portals where refund and reissue quotes come back through the consolidator's API, into the same booking engine that made the sale, resolve cases in minutes, while email-based service queues take days. When evaluating any supplier, ask to see the cancellation and reissue flow before you admire the search speed.
Where the money and the risk sit
Post-ticketing is where agency accounting gets tested. A refund reverses money that has already been split across supplier, taxes and your margin; commission on refunded tickets is typically recalled; penalties are collected by the airline through settlement; and mistakes surface later as debit memos. Refund timing is also asymmetric: the customer wants money back immediately, while the airline refund arrives through the settlement cycle. Agencies that front refunds from working capital are extending credit and should do so as a deliberate policy, not by accident. Every action should land against the original booking in your books, a discipline covered in travel agency accounting basics.
Customer communication that prevents disputes
- Quote the exact penalty, fare difference and your own fee in writing before acting, and get written confirmation
- State the expected refund timeline honestly, including that airline refunds flow through settlement cycles
- On involuntary changes, tell the customer their options (rebooking or refund) neutrally and record their choice
- Confirm every completed action with the new ticket number or refund reference
- Keep fare-rule screenshots or structured rule data with the booking record for the inevitable "but I was told" moment
- Publish your own service-fee schedule for changes and refunds on your website, and keep it in sync with what agents charge
Documented, rule-based answers turn refund conversations from arguments into process. They are also your defence in card chargebacks, where the winning evidence is the fare rules disclosed at purchase and the customer's acknowledgement.
This article is general information about travel technology and online marketing. It is not legal, tax or financial advice, and advertising platform policies change often. Check the current policy documents and take professional advice for your own situation.