Proof of onward travel

Visa requirements for Cambodia can vary based on entry method and nationality. Historically, land border crossings incurred a visa fee, while air arrivals often had a free visa process. Current regulations should be verified, as procedures may have changed. Visa on arrival is generally available. Travelers may be asked to present a return ticket, and its absence could lead to denial of entry or additional fees. It is advisable to carry new US dollar bills, as older currency may not be accepted.

Travelers may opt not to purchase return tickets to Russia immediately. Consult the airline for specific policies regarding return tickets or flexible booking options (e.g., refundable or date-changeable tickets) to maintain travel flexibility.

Entry requirements for Vietnam include a visa or e-visa (45-day visa-free for some countries). Proof of onward travel (return ticket) is legally required; enforcement depends on the airline. E-visa validity dates must match the arrival date.

For entry into Vietnam, proof of onward travel is sometimes checked, depending on airline requirements and border officer discretion. A flight out of the country (not necessarily back to the country of citizenship) is often sufficient. Valid, temporary flight reservations can be generated via specialized services or purchased and then cancelled if flexible.

When traveling from Vietnam to South Korea, especially with budget airlines like VietJet Air, expect specific procedures. Passengers may be asked for a printed K-ETA, questioned about their purpose of visit, and have their onward travel tickets verified. The airline's service can be basic with limited amenities and strict payment policies. At Incheon Airport immigration, having a local contact or clear explanation for your visit can facilitate a smoother process, even if officers appear strict initially. Ensure all your travel documents, including K-ETA and return tickets, are in order.