My Dummy Ticket
A friend nearly missed her Cancún flight at Heathrow because the check-in agent wouldn't accept her Google Flights screenshot as departure proof. She had to call a travel agent from the check-in queue to get something bookable in the next ten minutes. It's a completely avoidable situation, and it happens on Mexico routes more than you'd expect.
A dummy ticket, also called an onward ticket, is a real PNR booked for border-check purposes without paying for the actual flight. Below are the questions travellers actually type into search engines before flying to Mexico.
Do I actually need an onward ticket to enter Mexico?
Probably yes, depending on how you're arriving. Mexico doesn't require a visa for most Western nationalities, but the INM (Instituto Nacional de Migración) can and does ask one-way arrivals to show a departing flight. The rule is informal in the sense that there's no single published statute saying "you must show a ticket," but the practice is consistent enough that carriers enforce it via IATA Timatic before you even board.
At MEX (Mexico City), CUN (Cancún), and GDL (Guadalajara), solo travellers on one-way fares get asked. The US State Department's Mexico travel information page confirms that travellers should have documentation of onward travel. At Heathrow, Toronto Pearson, and LAX, the check-in desks for Mexican-serving airlines query this at the counter. If you're on a round-trip with a confirmed return booking, you're fine. If you're going one-way or your plans are genuinely open, you need something.
Will a screenshot of a flight count as proof?
No. This is the one that catches people. A screenshot of a Skyscanner or Google Flights result shows you found a flight - it doesn't show you booked one. Neither do booking.com or Airbnb confirmations, which are accommodation, not departure proof.
What the check-in agent and INM officer actually verify is a PNR (passenger name record): a booking reference that returns your name and flight details when queried in an airline or GDS system. Here's what works and what doesn't:
| Document | Does it work? |
|---|---|
| Real return or onward flight with PNR | Yes |
| Dummy ticket with live PNR | Yes |
| OTA booking confirmation with verifiable PNR | Yes |
| Screenshot of a flight search | No |
| Email confirmation without a PNR | No |
| Bus or ferry booking | Usually not reliable |
What exactly is a dummy ticket, and is it legal to use one?
A dummy ticket is a genuine airline reservation booked through a GDS (Global Distribution System) that generates a real PNR, without the passenger paying the full airfare upfront. It's legal. It's the same type of booking that travel agents have used for decades to hold fares while waiting for client payment.
The key difference from a fake or fabricated document: a dummy ticket actually exists in the airline's system. An officer who queries your PNR gets back a real result: your name, the route, the departure date, and the booking status. Nobody's been deported for presenting a dummy ticket. People have been refused entry for presenting a screenshot and calling it a ticket.
I've used a dummy ticket for a Mexico entry when I was mid-trip and hadn't finalised my exit route yet. It took about two minutes to set up and I was through the check-in queue without drama. Services like My Dummy Ticket keep these PNRs live for a defined window so the booking is still active when you need it. Get yours here before you fly.
How long before my Mexico trip should I book the dummy ticket?
Book it close to your travel date, not weeks out. Most economy-class reservations held without full payment expire within 24 to 72 hours in major GDS systems. If you book a dummy ticket three weeks before your flight and forget about it, the PNR will almost certainly have cancelled by the time you reach check-in.
The practical approach:
- Check in for your inbound flight? Book the dummy ticket 12-24 hours before.
- Applying for a Mexico visa? Book it 2-3 days before your consulate appointment and confirm the PNR is still live the morning of.
- Re-entering Mexico after a visa run? Book fresh each time.
Read the how long does a dummy ticket last guide for exact expiry windows by carrier type and GDS.
Can I use a bus ticket to Guatemala or Belize as my Mexico exit proof?
It depends on the officer, which means it's unreliable. An overland departure (bus to Chetumal then onward to Belize City, or a coach to the Guatemala border) is technically a form of onward travel, and some travellers have reported INM officers accepting it without question. Others haven't.
The problem is consistency. An air ticket out of MEX, CUN, or GDL is unambiguous - it's in a GDS, it has a PNR, the officer can verify it. A bus ticket from a Mexican coach company is a paper or PDF confirmation with no standardised verification method. If the officer decides they want something more solid, you're in secondary inspection.
The safest approach is an air-based dummy ticket. It's what airline check-in agents expect, it's what satisfies IATA Timatic, and it's what INM officers in busy airports treat as the standard document. Check whether airlines verify dummy tickets at check-in if you want to understand exactly what the desk agent is looking at when they check your PNR.
Frequently asked questions
Does Mexico check onward tickets at land border crossings?
Less consistently than at airports. Crossings from the US into Tijuana, Ciudad Juárez, or Nuevo Laredo are primarily focused on vehicle and document checks. That said, INM officers at some crossings do ask about departure plans, and travellers arriving for extended stays get more scrutiny. An onward flight booking is still useful to have.
What if my plans change after I book the dummy ticket?
That's kind of the point. A dummy ticket is for situations where your departure route isn't fixed. You use it to get in, then book your actual onward travel once you're settled. Most travellers on open itineraries find their next move within the first few days in-country anyway.
Do children need a separate onward ticket for Mexico?
Children on a family booking with return tickets don't need anything separate. The family's confirmed return booking covers the group. If you're travelling with children on a one-way ticket, the INM officer will apply the same departure-proof expectation to the whole travel party.
Is it worth buying a cheap refundable fare instead of a dummy ticket?
You can, but a same-day refundable fare on Aeromexico or any other carrier from MEX is usually expensive and the booking process adds friction. A purpose-built dummy ticket from a service like My Dummy Ticket is faster, cheaper, and already structured for this exact use case.