You're at the check-in desk, ETA approved on your phone, and the agent asks for proof you'll leave Australia. This trips people up because an approved Electronic Travel Authority doesn't include a return flight, and airlines check onward travel separately, often against IATA's Timatic database before they let you board. A dummy ticket, also called an onward ticket, is a real PNR booked for visa or border-check purposes without paying for the flight, and if the term is new to you the dummy ticket explainer covers it in full. If you don't have one and your flight closes in under an hour, here's what actually works.

If you're at the check-in desk right now

Don't argue policy with the agent. Open a flight-search or dummy-ticket site, book a refundable or free-hold onward flight in your name, and have the PDF or booking reference ready within 10 minutes. Airlines enforce onward-travel checks because they, not the government, get fined for carrying someone who can't leave. Show a confirmed booking with a real record locator and the agent moves on. This usually takes 15 to 20 minutes start to finish, including the time it takes their system to re-scan your documents.

If you're checking in online and the field won't clear

Some airline websites ask for your onward flight details before they'll issue a boarding pass, even when your ETA is fine. If the field rejects a placeholder or blank entry, book a real onward PNR first (it has to exist and be checkable), then paste that flight number and date into the form. Give yourself 30 to 45 minutes for this if you're also trying to select seats or add bags, since the site may re-validate everything after you edit one field.

If you have 24 hours and no return ticket yet

You have more room to plan. Decide whether you actually intend to leave Australia by the date your accommodation or itinerary implies, and book accordingly. A one-way dummy ticket costs a small booking fee rather than the full fare, and it holds a real seat you can let lapse if your plans change. Confirm the PNR shows up when you search it on the airline's own site before you close the laptop. That single check catches most booking errors early, while you still have time to fix them.

If your plans are still open-ended

Some travelers genuinely don't know their exit date, especially if the Australia leg is part of a longer regional trip. That's fine, but "I'll figure it out" doesn't work at a check-in desk. Book a fully refundable onward flight, or one with a free cancellation window, dated to whenever your current plan realistically ends. Set a reminder to revisit it a week out. Airlines don't care whether you actually board that flight later; they care that a real, checkable one exists on the day you fly to Australia.

What actually counts as proof

Not every document satisfies the same person. A check-in agent, a Border Force officer at the airport, and the online ETA system itself are checking for different things, and conflating them is where most people lose time.

Who's asking What they're checking What satisfies them
Airline check-in agent Can this passenger legally leave Australia later, so the airline avoids a carrier fine A confirmed onward or return PNR in your name, checkable on the airline's system
Australian Border Force officer Whether you match your visa conditions on arrival Your approved ETA plus, occasionally, evidence of your travel plans if questioned
ETA application system Passport and eligibility details at the time you apply Passport data only; it does not ask for or store your flight details

Because the ETA system itself never sees your flight, an approved ETA and a working onward ticket are two separate problems. Fixing one doesn't fix the other. The distinction is the same one that trips people up applying for a Canada eTA: the electronic authorization and the onward-travel check run on different systems, checked by different people, at different points in the trip.

If you're transiting through Australia rather than stopping

Transit passengers get asked for onward proof more often, not less, because the whole point of a transit stop is that you're not staying. If your layover in Sydney, Melbourne, or Brisbane connects to a further international flight, that connecting ticket usually is your onward proof, so you may not need a separate booking. Check with the airline you're flying if your transit is under 8 hours and you're not clearing full immigration, since document checks can differ from a standard arrival. These checks exist because airlines and border agencies both work from the same underlying identity and travel-document standards that ICAO's TRIP programme sets globally, which is why the same onward-ticket logic shows up at check-in desks on nearly every route.

Frequently asked questions

Does my ETA get canceled if I don't have a return flight yet?

No. The ETA is tied to your passport and eligibility, not your itinerary, so a missing return ticket won't affect its approval. It can still stop you from checking in for the flight, though, which is a separate airline requirement.

Can I use a one-way ticket if I'm a citizen of a visa-exempt country?

Being visa-exempt for entry doesn't remove the airline's own onward-travel check. Some travelers get through on a one-way ticket without being asked; you shouldn't count on it, especially at busier check-in counters.

What if I genuinely don't know my exit date yet?

Book a refundable or low-cost onward flight for your best-guess date and change or cancel it later. It's a placeholder for the airline's records, not a promise you can't adjust.

Will immigration in Australia ask for my return ticket on arrival?

It's possible but not routine for most visitors. Airlines are the more consistent checkpoint since they carry the liability if you can't leave.

Does a dummy ticket work the same way for a partner or family visa application as it does for the ETA?

The purpose is similar, showing intent to leave, but the audience is different. A visa officer reviewing an application has more time to scrutinize a booking than a check-in agent does, so keep the PNR consistent with the dates on the rest of your paperwork.

Book a real, checkable onward ticket through Get Dummy Ticket before your check-in window opens.