Fly to Kosrae International Airport (KSA) on the island-hopper network. United's Guam hub schedule, viewed for this research, shows UA155 serving Guam to Kosrae on Monday and Thursday and UA154 Kosrae to Guam on Tuesday and Friday; service often runs through other Pacific island stops. This differs from undated flight days and times published by the Kosrae HPO and Nautilus, so use the airline's live date-specific booking schedule rather than copying a timetable into your ticket plan. Connections are generally arranged through Guam or Honolulu. There is no verified regularly scheduled passenger sea transfer serving Kosrae as a normal visitor gateway, and local sightseeing boats are not inter-island ferries. United Airlines Guam hub schedule; Kosrae State Historic Preservation Office; .

The island's international air gateway. Airline schedules and immigration checks may change; resort pickup is worth reserving before departure. United Airlines Guam hub schedule; Kosrae Visitors Bureau accommodation directory.

The main island and Lelu visitor bases rely on local roads, rental vehicles and prearranged accommodation transfers. The Kosrae HPO lists rental contacts but its daily prices are undated; do not treat those as 2026 live rates. Visitor Bureau entries identify airport shuttles at specific hotels. Hire locally knowledgeable guides for access to private heritage sites, rainforest trails or western forest by boat. Public transport and rideshare availability have not been independently verified. Avoid driving after dark or in heavy rain when visibility and road conditions can deteriorate. Kosrae State Historic Preservation Office; Kosrae Visitors Bureau accommodation directory; Government of Canada FSM travel advice.

The FSM Embassy describes ordinary short visitor entry without a pre-arranged visa for stays up to 30 days, with valid passport, adequate funds and onward travel. FSM Tourism advises a passport with at least 120 days validity beyond entry, while the 2026 U.S. State Department advisory gives a more conservative six-month passport-validity guideline; check your nationality, carrier and immigration directly and use the stricter requirement when uncertain. Longer stays or nonvisitor purposes need an appropriate entry permit. Travelers should also verify transit rules at Guam, Honolulu or other connection points. Kosrae tourism information currently lists a USD $20 departure tax. FSM Embassy visitor information; FSM Tourism entry requirements; U.S. Department of State FSM travel advisory.

Nautilus advertises tanks, weights and lunch on two-tank trips and references onboard oxygen, but do not infer the availability of a particular cylinder valve, nitrox blend, rental size, photography equipment or rescue certification. Bring any difficult-to-replace mask, corrective lens, medication, dive computer or freedive-specific safety kit. The operator mentions snorkeling gear rental at Blue Hole; verify sizes and availability. Respect the airline's baggage limits and protect equipment against rain/salt on small boats. Nautilus Divers operating description; Kosrae Nautilus Resort activities.

USD is the currency in Kosrae. Resorts may accept major cards, but smaller services and car rentals may ask for cash. Bring usable denominations; no current card acceptance at every operator is verified. Kosrae Nautilus visitor information; FSM Tourism travel FAQ.

Nautilus describes ATMs at two bank locations on Kosrae, but cash availability, bank ownership and opening status were not independently confirmed for October 2026. Carry contingency cash before remote tours. Kosrae Nautilus visitor information.

FSM tourism and Nautilus describe U.S.-style power and outlets. Bring an adapter if needed and check that sensitive chargers accept local voltage and frequency; power interruptions can occur. FSM Tourism travel FAQ; Kosrae Nautilus visitor information.

Communications

The local country code is +691. FSM Telecom says Kosrae has mobile and internet services, but coverage varies by terrain and weather and its coverage map is not a service guarantee. Some hotels advertise Wi-Fi. Arrange the needed SIM or roaming access beforehand, share offline meeting instructions with guides, and do not rely on having data on a remote reef or trail. Kosrae uses UTC+11, unlike Yap and Chuuk (UTC+10). FSM Telecom wireless coverage; FSM Telecom internet services; Kosrae Visitors Bureau accommodation directory; FSM Tourism travel FAQ.

Language

Kosraean is the local community language, and English is widely used with visitors. Asking permission, greeting people and choosing respectful clothing are important on Kosrae. The state HPO specifically advises learning Kosraean phrases and not scheduling hiking or diving on Sunday. Kosrae State Historic Preservation Office; Kosrae Nautilus visitor information.

Insurance

Choose travel and dive insurance that explicitly covers scuba or planned freediving, medical evacuation from Kosrae, emergency transport and any specialty dive conditions. Confirm coverage of trip interruption and delayed island flights. Government travel guidance flags limited medical infrastructure and the possible cost of evacuation; an operational local recompression chamber has not been verified. Government of Canada FSM travel advice; U.S. Department of State FSM travel advisory.

Packing list

Pack modest lightweight clothing, rain shell, secure hiking shoes, sun protection and a dry bag. Divers should prioritize fit-critical gear, certification proof, log/computer and required medication. For snorkelers, a personally fitted mask and appropriate flotation matter more than trying to complete a long Blue Hole circuit. Bring cash and offline contact details, plus a reusable bottle for humid days and long boat or forest outings. ; ; .

Kosrae

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