How long can US citizens stay in Asia and the Pacific without a visa?
The short answer
It depends on the country. US citizens can stay up to 90 days visa-free in Taiwan and Hong Kong, under 90 days in Mongolia and up to 30 days in Thailand (cut from 60 on 15 September 2026). Vietnam, Cambodia, India, Sri Lanka and New Zealand need an eVisa, visa or ETA first. Stay limits and entry rules change, so check the official page for your destination before you travel.
East Asia
Taiwan and Hong Kong let US citizens in without a visa for up to 90 days. China covers US citizens in its 240-hour visa-free transit rule. For ordinary tourism, check the Chinese embassy page for the current rules. Mongolia allows US citizens to stay without a visa for less than 90 days.
- Taiwan: up to 90 days visa-free, no pre-travel authorisation named on the page read. A general rule of six months' passport validity at entry applies, but for US nationals the page says the passport must be valid for the intended period of stay (Taiwan Bureau of Consular Affairs).
- Hong Kong: up to 90 days visa-free for US passports other than diplomatic passports, no pre-authorisation. The page does not state a passport validity rule (Hong Kong Immigration Department).
- China (transit): US citizens are on the list for 240-hour (10 day) visa-free transit. You need an onward ticket to a third country or region with confirmed dates, a travel document valid for at least 3 months, and an arrival card, and you must enter through one of 65 designated ports (China National Immigration Administration; Embassy of China country list).
- Mongolia: US citizens can travel without a visa if the stay is less than 90 days. Anyone staying more than 30 days must register with the Immigration Authority within 7 days. The page does not state a passport validity rule (Embassy of Mongolia in the US).
Southeast Asia
Thailand cut its visa-free stay for US citizens to 30 days from 15 September 2026, so older guides that say 60 days are out of date. Vietnam and Cambodia need a visa or eVisa, and Singapore needs no visa but sets your stay at the checkpoint.
- Singapore: no visa for business or social visits. ICA says your period of stay is set by the electronic visit pass issued at the checkpoint, so there is no fixed number on its page. You must submit the SG Arrival Card within 3 days before arrival (Singapore ICA; Singapore MFA Washington).
- Thailand: visa exemption for tourism for up to 30 days from 15 September 2026, with the United States on the list. Land-border entries under this exemption are generally limited to two a year. All non-Thai nationals must submit the Thailand Digital Arrival Card within 3 days before arrival. The pages read do not state a passport validity rule (Tourism Authority of Thailand; TDAC official FAQ).
- Vietnam: the United States is not on the visa-exempt lists, so US citizens need an eVisa. The eVisa costs 25 USD single entry or 50 USD multiple entry and is valid for up to 90 days. The passport must be valid for at least six months beyond the date of entry (Vietnam National Authority of Tourism).
- Indonesia: the United States is on the e-VOA (electronic visa on arrival) country list. The B1 visa on arrival costs IDR 500,000 for 30 days and can be extended once for another 30 days. The pages read do not state a passport validity rule (Indonesia Directorate General of Immigration, B1 page and FAQ).
- Cambodia: US citizens need a visa. The tourist visa costs 30 USD and allows 30 days, and can be obtained online or on arrival. The passport must be valid for at least six months, and the e-Arrival Card is submitted within 7 days before arrival. The page read is an older Ministry of Tourism page, so check the fee on the official eVisa site (Cambodia Ministry of Tourism).
South Asia
Both countries here need an advance visa or e-Visa or ETA for US citizens, so neither offers a simple visa-free stay.
- India: US citizens are on the e-Visa eligibility list. The e-Tourist visa comes as 30 days (multiple entry, non-extendable), 1 year or 5 years, with a maximum of 180 days in a calendar year on the longer visas. The passport must have at least six months' validity when you apply and two blank pages. The fee is country-specific and not shown on the page read (India e-Visa portal).
- Sri Lanka: US citizens cannot enter visa-free and must hold an ETA before arrival. The ETA is free for US nationals from 25 May 2026, valid for 30 days with double entry. The page does not state a passport validity rule (Sri Lanka official ETA site).
Oceania
New Zealand needs an NZeTA before you fly, while Fiji is visa-exempt for US citizens.
- New Zealand: US citizens are on the visa waiver list, so no visa but an NZeTA is required before travel. You can visit for less than 3 months at a time, with no more than 6 months in any 12-month period. The NZeTA is valid for 2 years and costs from NZD 17. The passport must be valid for at least 3 months after you plan to leave (Immigration New Zealand).
- Fiji: the United States is on the visa-exempt list, though you still need the visitor permit for your purpose of travel. The permit period varies from several days up to a maximum of four months. The pages read do not state a passport validity rule (Fiji Ministry of Immigration).
Destinations not covered on this page
Japan, South Korea, Nepal, Laos, the Philippines, Malaysia, Australia and the Maldives are not listed here because we could not confirm the full details from an official page we could read. Check each country's own immigration or foreign ministry site before you book.
Sources: Taiwan Bureau of Consular Affairs: foreign nationals eligible for visa-exempt entry, Hong Kong Immigration Department: visit visa and entry permit requirements, Singapore ICA: visa requirements, Singapore MFA, Embassy in Washington: visa and entry requirements, Tourism Authority of Thailand: new 30-day and 15-day visa exemption rules from 15 September, Thailand Digital Arrival Card (TDAC) official FAQ, Vietnam National Authority of Tourism: visa requirements, Indonesia Directorate General of Immigration: B1 visa on arrival, Indonesia Directorate General of Immigration: visa FAQ and e-VOA country list, Cambodia Ministry of Tourism: visa and passport information, Sri Lanka official ETA site, India e-Visa official portal: e-Tourist visa, Embassy of China in the US: visa-free entry FAQ, China National Immigration Administration: 240-hour visa-free transit, Embassy of China: countries eligible for 240-hour transit, Immigration New Zealand: visa waiver countries and territories, Immigration New Zealand: NZeTA, Fiji Ministry of Immigration: visa exempted countries, Fiji Ministry of Immigration: visitors permit, Embassy of Mongolia in the US: visa information for US citizens. Read 5 November 2026. Rules and fees change, so check the official page before you travel.
Frequently asked questions
Which Asia-Pacific countries let US citizens in with no visa at all?
Among the destinations we could confirm, Taiwan and Hong Kong allow up to 90 days, Mongolia allows stays of less than 90 days, Thailand allows up to 30 days for tourism, and Fiji is visa-exempt with a visitor permit of up to four months. Singapore needs no visa but sets your stay at the checkpoint.
Do US citizens still get 60 days visa-free in Thailand?
No. The Tourism Authority of Thailand says the visa-free stay is 30 days from 15 September 2026, with the United States on the 30-day list. A 30-day stay can be extended at an immigration office at the officer's discretion. Check the current rules before you travel.
Which countries need an eVisa or ETA before US citizens fly?
Vietnam (eVisa), Cambodia (visa, online or on arrival), India (e-Visa), Sri Lanka (ETA) and New Zealand (NZeTA) all need authorisation or a visa. Indonesia offers a visa on arrival for US citizens.
Can US citizens visit China without a visa?
For ordinary tourism, the United States is not on China's 30-day visa-free list, so a visa is generally needed. US citizens are covered by the 240-hour transit rule if they hold an onward ticket to a third country or region and enter through a designated port.
How long must my passport be valid for Asia-Pacific trips?
It varies. Vietnam, Cambodia and India say at least six months, New Zealand says three months after departure, and Taiwan asks US nationals for validity covering the intended stay. Several official pages we read give no figure, so check each country page.
Do I need an arrival card even if I do not need a visa?
Often yes. Singapore requires the SG Arrival Card within 3 days before arrival, Thailand requires the Thailand Digital Arrival Card, and Cambodia asks for its e-Arrival Card within 7 days before arrival.
Can I extend my stay if I am visa-free?
Sometimes. Indonesia allows one 30-day extension of the visa on arrival. Other countries set their own limits, so check the official page before relying on an extension.
How often do these rules change?
Often. Thailand changed its limit in September 2026 and Sri Lanka made its ETA free for US nationals in May 2026. Stay limits and entry rules change, so always check the official page linked in the sources before you travel.