The two types of transit
When you’re connecting through a country without entering it, you might still need a visa. There are two flavors:
1. Airport Transit Visa (ATV)
You stay inside the international zone of the airport. You don’t pass through immigration. You’re in a sealed transit area between flights.
For most passports through most airports, no visa is needed for this. But some country/passport combinations require an ATV — even though you never set foot on the country’s actual soil.
2. Transit Visa (regular)
You leave the airport (because your layover is overnight, or you’re switching airports, or you’re picking up checked luggage at a country that requires you to clear customs even when transiting).
This is essentially a short-stay visa with a transit purpose. Application is similar to a tourist visa but with a different category.
The trap: when the airport transit zone isn’t enough
Most countries let everyone transit through their international zone visa-free. Exceptions to know:
| Country | Airside transit visa required? | Notes |
|---|---|---|
| United States | Yes | No international zone — every connecting passenger clears immigration |
| Canada | Usually yes | Limited exceptions via China Transit Program / Transit Without Visa Program |
| United Kingdom | Depends | DATV required for some passports even when staying airside |
| Australia | Yes if layover >8h | Transit visa required for most passports, especially longer connections |
| Schengen | No for most | ATV-required nationality list applies (see Annex IV of the Visa Code) |
| Singapore | No | Free airside transit at Changi for most travelers |
| Dubai / UAE | No for most | Airside transit visa-free; landside stays need a tourist visa |
| Hong Kong | No | Visa-free airside transit for most nationalities |
- United States: there is no “international zone” at US airports. Every connecting passenger goes through immigration and customs. You need a US visa or ESTA to connect through any US airport, even for a 90-minute layover. This catches a lot of people.
- Canada: similar in most cases. You typically need an eTA or visa to transit, with limited exceptions for certain routes/passports (the “China Transit Program” and “Transit Without Visa Program”).
- UK: you may need a Direct Airside Transit Visa (DATV) depending on your nationality, even if you stay airside.
- Australia: transit visa required for most passports, including airside transit if your layover is over 8 hours.
For Europe, most Schengen airports allow airside transit visa-free for most passports — but a list of “ATV-required” nationalities exists, including (varies by country): Afghanistan, Bangladesh, Congo, Eritrea, Ethiopia, Ghana, Iran, Iraq, Nigeria, Pakistan, Somalia, Sri Lanka. Check the specific Schengen state.
How to check if you need one
When you check visa requirements on Mayivisit, the answer covers entering the country. Transit may be different. Always:
- Check the embassy site of every country you transit through
- If your itinerary involves the US, Canada, UK, or Australia, assume you need transit authorization unless explicitly told otherwise
- Don’t trust airline ticketing systems alone — they don’t always flag transit visa requirements
Practical tips
- Same airport, single airline ticket: usually the simplest. Your bags are tagged through and you stay airside.
- Switching airlines, same airport: depends on the airport. Some have “international transit” desks; others require you to clear immigration to recheck bags.
- Switching airports (e.g., Heathrow to Gatwick): you’ve left the international zone. Transit visa rules apply just like tourist entry — carry the standard supporting documents.
- Overnight layover: if you want to stay at a hotel landside, you’ve entered the country. Tourist or transit visa applies.
The “I’ll just stay at the airport” plan
It works in many places — international airports often have rest areas, sleeping pods, paid lounges. But:
- US, Canada, Australia: doesn’t work, you must enter the country anyway
- Some airports actively close their international zone overnight (forcing you out)
- Hong Kong, Singapore, Doha, Dubai, Frankfurt: airside is comfortable, you can sleep
- Smaller airports: might not have anywhere to sit after midnight
If your layover is over 12 hours, plan to enter properly with a transit or short-stay visa, even if it costs extra.
Common surprises
- Booking through Skyscanner/Google Flights: the cheapest itinerary often routes you through a country requiring a transit visa you don’t have. Always verify before purchasing.
- Transit through a third country to reach your destination: even if your final destination accepts you visa-free, your transit country might not.
- Onward ticket requirements: even airside transit sometimes requires showing onward boarding pass at check-in.
- Visa-on-arrival not always available for transit: some countries offer VoA for tourists but not for transit-only passengers.
When in doubt, fly direct. The extra cost beats getting denied boarding because of a transit visa issue you didn’t know about.
Frequently asked questions
- Do I need a transit visa for a US layover?
- Yes for almost every passport. The United States has no international transit zone — every connecting passenger clears immigration, so you need a valid US visa or ESTA even for a 90-minute layover.
- Do I need a transit visa for a Schengen layover?
- Most passports can transit airside through Schengen airports visa-free. A specific list of nationalities (including Afghanistan, Bangladesh, Eritrea, Ethiopia, Iran, Iraq, Nigeria, Pakistan, Somalia, Sri Lanka) requires an Airport Transit Visa even when staying in the international zone.
- What is the difference between an Airport Transit Visa and a transit visa?
- An Airport Transit Visa (ATV) lets you stay inside the sealed international zone between flights. A regular transit visa lets you leave the airport — required if you change airports, collect checked baggage at customs, or have an overnight layover at a hotel.
- Do I need a transit visa for a UK layover?
- Possibly. The UK requires a Direct Airside Transit Visa (DATV) for several nationalities even when staying airside, and a Visitor in Transit visa if you pass through UK border control. Check the UK government's transit visa checker before booking.