If you hold a US passport, there is no visa-free stamp waiting for you in Vietnam — you need a 90-day e-visa approved before you fly. It costs $25 for single entry or $50 for multiple, clears in three to five working days through the official portal at evisa.gov.vn, and covers a stay of up to 90 days. Americans rarely trip over the payment (US cards work fine); they trip over the timing and the entry-point trap. Here’s how to get it right the first time.

Why Americans don’t get the visa-free stamp

Vietnam handed 45 days of visa-free entry to twelve countries in March 2025 — the UK, Germany, France, South Korea, Japan and a handful more. The United States isn’t on that list. So while a British traveler can walk up to the counter with just a passport, an American cannot. On a US passport the airline will check for an approved e-visa at check-in — Los Angeles, San Francisco, wherever you depart — and without it you don’t board. This isn’t a gray area you can talk your way past at the gate.

There is exactly one carve-out worth knowing: Phu Quoc island. Fly or sail directly to Phu Quoc, stay only on the island, and you get 30 days visa-free with no application at all. The moment you want the mainland — Da Nang, Hoi An, Hanoi — that exemption ends and the e-visa rule applies.

Security checkpoint signage at a US airport departure terminal
US airlines check for an approved Vietnam e-visa right here, before you ever reach the gate

Single or multiple entry — which one you actually need

The $25 single-entry visa covers one arrival and closes the moment you leave the country. That’s the right call for a straight two- or three-week trip with no side hops. The $50 multiple-entry version earns its extra $25 the second you plan a detour — a weekend in Bangkok, a few days in Siem Reap, then back into Vietnam. Both run up to 90 days. If you’re basing yourself in Vietnam for a couple of months and expect to leave and return, pay for multiple entry up front. Reapplying mid-trip because you booked single is the most common self-inflicted headache I see from American travelers.

Security checkpoint signage at a US airport departure terminal
US airlines check for an approved Vietnam e-visa right here, before you ever reach the gate

The application, step by step

  1. Go straight to evisa.gov.vn. The top Google results are often agencies that charge a markup over the same $25 government fee — skip them.
  2. Upload a clean scan of your passport photo page plus a separate headshot: face forward, white background, no glasses, no hat.
  3. Enter your name and passport number letter for letter, exactly as printed. A single mismatched character is the number-one rejection cause, and the fee is not refunded.
  4. Pick your entry checkpoint and arrival date. You cannot change the checkpoint later — if your e-visa says Tan Son Nhat (Ho Chi Minh City) and you land in Da Nang, you get turned around.
  5. Pay $25 or $50 with a Visa or Mastercard and save the registration code.
  6. After three to five working days, return to the portal and download the PDF. Print it — some border officers still won’t accept a phone screen.
Aerial view of the coastal road and beach along Da Nang’s coastline
Da Nang's coastline is one of five airports where a US e-visa clears immigration

Where the e-visa is valid — and the timing trap

A US e-visa only works at the checkpoint you selected, and Vietnam accepts it at all major international airports — Da Nang, Noi Bai (Hanoi), Tan Son Nhat (Ho Chi Minh City), Cam Ranh (Nha Trang), Phu Quoc — plus land crossings like Lao Bao, Moc Bai and Ha Tien if you’re arriving overland or planning a visa run from Da Nang.

Noi Bai International Terminal building in Hanoi with a Vietnam Airlines plane at the gate
Noi Bai in Hanoi is one of the checkpoints where a US e-visa clears on arrival

The real risk for Americans isn’t the card or the checkpoint — it’s cutting the timeline too close. “Three to five working days” excludes weekends and Vietnamese public holidays, and a rejection over a typo eats your entire lead time. If you’re flying inside a week, the margin is thin. For exactly what to expect day by day, read the Vietnam e-visa processing time guide, or see what a filed-for-you application covers on the Vietnam e-visa 90 days page.

If your departure is close and you don’t want to gamble the trip on a government portal, this is usually where I step in. Best Bus files the whole thing for $45 — we check every field before submitting, handle the payment, and send the approved PDF straight to your Telegram, typically within 24 hours. Flying in the next few hours, or mid-visa-run at the border and need a fresh one fast? We can turn a clean application around in about 3. When a rejection would mean rebooking a $900 flight, paying us to get it right the first time is cheap insurance. Message me on Telegram with a photo of your passport page and your travel dates and I’ll tell you exactly what it needs.

What gets US applications rejected

Nine times out of ten, the rejection traces back to one of a handful of avoidable mistakes. The ones I see most often from American applicants:

  • A name entered with a nickname or middle initial that doesn’t match the passport exactly
  • A passport number mistyped by a single digit or letter
  • An arrival date that doesn’t match the actual flight booking
  • A passport with under six months of validity left at entry — refused at the gate even with an approved e-visa
  • A blurry or cropped photo upload that an officer can’t match to your face
Close-up of a businessman reviewing paperwork with a pen at a desk
A single mismatched letter on the form is the most common reason a US e-visa application gets bounced

None of these get the $25 or $50 refunded — the fee is gone whether the visa is approved or not. And you can’t fix an overstay from inside Vietnam either: if your 90 days run out, the fix is a border run with a fresh visa, not an in-country renewal.

For shorter stays, see how the visa-on-arrival route compares, and if you’re weighing a longer base in Vietnam, the 2026 visa run guide lays out every reset option.

Flying soon and want a human to check the form before you pay the $25 and hope? Send me your passport page and dates on Telegram @learnx1000 — or WhatsApp if that’s easier — and I’ll either flag what’s wrong or file the whole thing for you through danangvisarun.com.