Tonga requires visitors from most countries to obtain a visa on arrival at Fua'amotu International Airport. Citizens of most Commonwealth countries, the United States, and European Union nations receive 31 days on arrival without fee. The official immigration website is https://immigration.gov.to where current requirements are published. Passports must be valid for six months beyond intended departure date. Visitors must show proof of onward travel and sufficient funds, though the monetary threshold is not consistently enforced. Extensions beyond 31 days require application at the Immigration Office on Vava'u Road in Nuku'alofa at least one week before expiration. Maximum total stay is six months in any twelve-month period.
Tonga uses the Tongan Pa'anga, written as TOP or T$. As of standard exchange rates, one pa'anga equals approximately 100 seniti. The pa'anga floats against a basket of currencies weighted toward the Australian dollar and New Zealand dollar. ATMs exist in Nuku'alofa at ANZ Bank, Tonga Development Bank, and MBf Bank locations, dispensing pa'anga only. Vava'u has two ATMs in Neiafu. Ha'apai and outer islands have no ATM infrastructure. Credit cards are accepted at major hotels and some restaurants in Nuku'alofa and Neiafu only. Visa and Mastercard function; American Express does not. Cash remains necessary for markets, small guesthouses, domestic flights, and all transactions on smaller islands. Banks open Monday to Friday 0900-1600, closed weekends and public holidays.
Telecommunications in Tonga are provided by Tonga Communications Corporation, a state enterprise operating as TCC. Mobile coverage on Tongatapu reaches approximately 95 percent of the island. Vava'u has coverage in Neiafu and main settlements. Ha'apai coverage is limited to Pangai and immediate vicinity. Outer islands have minimal or no coverage. TCC sells prepaid SIM cards at the airport and at its Salote Road office in Nuku'alofa for T$10, requiring passport for registration. Data packages cost T$5 for 500MB to T$50 for 10GB with 30-day validity. Digicel entered the market in 2013 providing competing service. Internet speeds average 5-10 Mbps in Nuku'alofa, slower elsewhere. The submarine Tonga Cable, completed in 2013 and running to Fiji, replaced satellite-only connectivity. WiFi exists in mid-range and upper-tier accommodations in Nuku'alofa and Neiafu but not reliably in budget guesthouses.
Medical facilities are concentrated at Vaiola Hospital in Nuku'alofa, a 120-bed government facility on Salote Road. Vava'u Hospital in Neiafu has 30 beds. Ha'apai has a clinic in Pangai with limited capacity. Serious medical emergencies require evacuation to Fiji or New Zealand, which several operators provide at costs exceeding USD 10,000. Dengue fever is endemic with periodic outbreaks; the most recent significant outbreak occurred in 2023 with over 3,000 reported cases. No malaria exists in Tonga. Zika virus has been detected sporadically since 2016. Tap water in Nuku'alofa and Neiafu is chlorinated but travelers commonly experience gastrointestinal adjustment regardless. Rainwater collection is standard on outer islands. Pharmacies operate in Nuku'alofa on Taufa'ahau Road and in Neiafu. Prescription medications should be brought from origin countries as availability is inconsistent.
Domestic air service is provided by Real Tonga, which operates scheduled flights from Fua'amotu to Vava'u, Ha'apai, 'Eua, and Niuatoputapu using two Harbin Y-12 aircraft. Fua'amotu to Vava'u operates daily, flight time 65 minutes, fares T$250-300 one-way. Ha'apai receives three flights weekly. 'Eua receives two flights weekly, flight time 12 minutes. Weight limits of 15kg checked baggage are strictly enforced due to aircraft size. Ferry service operates from Queen Salote Wharf in Nuku'alofa to Vava'u and Ha'apai via MV 'Otuanga'ofa and MV Pulupaki, journey time 24-36 hours depending on route and weather. Fares range T$60-150 depending on accommodation class. Schedules change monthly and delays of several days occur frequently. No ferry operates to 'Eua; small boats cross the 40-kilometer gap irregularly. The Niuas in the far north receive monthly ferry service when weather permits, journey time exceeding three days.