Vietnam issues e-visas to travellers from dozens of countries and lets several more in visa-exempt for short stays, but neither route removes the question an airline agent asks at your home airport: proof you're not staying forever. 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 Vietnam is one of the routes where it genuinely matters before you've even boarded.

Step 1: Work out which entry route you're using

Vietnam's rules split into three lanes: visa-exempt for a short list of nationalities, e-visa for most others, and visa-on-arrival letters that are largely obsolete now the e-visa system covers the same ground. Each lane has a different paper trail, but all three share one detail the UK Foreign, Commonwealth & Development Office flags for Vietnam entry: travellers should be ready to show evidence of onward or return travel, alongside their visa or exemption documents.

Step 2: Understand that the airline checks before Vietnam does

Here's the part that catches people out. Your passport gets scrutinised at Vietnamese immigration, sure, but the first checkpoint is your departure airport check-in desk. Airlines carry the financial liability if they fly you somewhere you can't legally enter, so gate agents run your details through IATA's Timatic system, which flags missing onward proof before you're anywhere near a Vietnamese official. Get rejected there and the immigration rules never come into play at all.

Step 3: Book something that actually exists in the airline's system

A dummy ticket only works if it's a live PNR, not a PDF someone typed up in an afternoon. Gate staff running a Timatic check are pulling live booking data, not eyeballing a screenshot. A dummy or onward ticket needs a real record locator on a real reservation, even if you never intend to fly that route.

Step 4: Verify the PNR before you're standing at the counter

Don't assume a booking confirmation email means the reservation will still scan when you check in. PNRs can drop for nonpayment, schedule changes, or simple system quirks. Pull up the airline's manage-booking page a day or two before departure and confirm the reservation still shows as active. It's a five-minute check that saves a very bad morning.

Step 5: Carry the same proof for Vietnamese immigration

Airline check-in isn't the only place this comes up. Vietnamese immigration officers can and do ask about onward travel during landing card review, particularly on e-visa entries where the visa itself doesn't specify an exit date. Keep a printed or downloaded copy of your onward booking alongside your accommodation details, since a dead phone battery shouldn't be the reason you can't answer a routine question.

Step 6: Know what to do if nobody asks

Plenty of travellers fly the whole route and never get asked for a thing. That doesn't mean the requirement wasn't real, it means enforcement is inconsistent, which is worse in a way. You can't predict which agent will ask, so the ticket needs to exist and be verifiable every time, not just on the trips where you get flagged.

Entry route Visa needed Onward ticket usually checked by
Visa-exempt short stay No Airline check-in desk
E-visa Yes, online application Airline check-in desk, sometimes immigration
Land border from Cambodia or Laos Depends on nationality Land-border immigration post

None of this is unique to Vietnam. It's the same onward-ticket logic used across most of Southeast Asia, and it's worth reading in full if Thailand is also on your route, since the airline-versus-immigration split works the same way there.

If you're still fuzzy on the difference between a paid return flight and a booked-but-unpaid onward reservation, the full explainer on dummy and onward tickets covers the mechanics in more depth than a country guide can.

Sources: gov.uk Foreign travel advice for Vietnam and IATA Timatic for how airlines verify travel documents before departure.

Frequently asked questions

Does the e-visa itself count as proof of onward travel?

No. The e-visa confirms you're allowed to enter Vietnam; it says nothing about how or when you're leaving, which is exactly why airlines and immigration ask for a separate onward ticket.

Can I use a flight I'm not planning to take?

Yes, that's the entire point of a dummy ticket: a real, verifiable reservation you don't intend to fly, held only long enough to clear check-in and immigration.

What if I'm travelling overland into Cambodia afterward?

Land-border crossings still expect some onward proof, though enforcement varies by post. A booked bus or flight ticket out of Cambodia is usually enough to satisfy the question if you're asked.

Will a screenshot of a booking work if the airline's system is down?

It can get you through in a pinch, but a live, verifiable PNR is always the safer bet since staff would rather check the system than take your word for it.

Does the visa-on-arrival letter still matter now the e-visa exists?

For most nationalities, the e-visa has effectively replaced the older pre-approval letter process, since it covers the same entry categories through a single online application. Either way, neither document removes the separate onward-ticket question at check-in.

Ready to book a verifiable onward ticket before your Vietnam trip? Get one through the booking page.