US citizens are generally not covered by Vietnam's visa-exemption list, meaning some form of visa arranged in advance is typically required. The e-visa system is the most straightforward route for most US travellers, applied for entirely online.

The e-visa process, broadly

Vietnam's official e-visa portal allows US citizens to apply online, upload a passport photo and passport scan, pay the fee, and receive an approval letter or e-visa by email, typically within a few business days, sometimes longer during busy periods. Print or save a digital copy to show on arrival.

Always double-check officially: Visa fees, exact validity periods and entry requirements are updated periodically. Apply directly through Vietnam's official government e-visa website (not a third-party agency site, which may charge extra fees for the same service) and check the current requirements close to your travel date.

What you'll need

A US passport valid for at least six months beyond your intended stay, a digital passport-style photo, and your travel dates. Applying at least a week or two before departure gives comfortable buffer time for processing.

At the airport

Have your approval documentation (digital or printed, per current requirements) and passport ready for immigration at Tan Son Nhat Airport. See our airport guide for what to expect after landing.

Common mistakes to avoid

The most frequent issues that delay a US e-visa application are minor but avoidable: a passport photo that doesn't meet the size or background requirements, a passport scan that's blurry or cuts off a corner, and applying through a third-party site that charges a service fee well above the official government rate without making that clearly obvious upfront. Double-checking that any site you're using ends in Vietnam's official government domain before entering payment details is a simple, worthwhile precaution.

Double-entry trips: If your itinerary includes leaving Vietnam and returning (for example, a side trip to Cambodia or Laos), confirm whether your e-visa is single-entry or multiple-entry before you book that leg — a single-entry visa won't let you back in without reapplying.
Typical routeOfficial e-visa, applied for online in advance
ApplyAt least 1–2 weeks before travel
Always verifyVietnam's official government e-visa website