Which is cheaper to Kumejima: jetfoil or airplane?

The Kumejima Ocean Jet is cheaper at ¥7,800 one-way. RAC flights start from approximately ¥9,000 but can exceed ¥15,000 depending on the season and booking timing.

Which is faster to Kumejima: jetfoil or airplane?

The flight takes about 30 minutes vs approximately 82 minutes for the jetfoil. However, when including airport check-in time (60 minutes recommended), security, and boarding, total door-to-door time is often comparable.

Kumejima Ocean Jet vs Flying (RAC) | Price, Time & Comfort Compared [2026]

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Key Points

Kumejima Ocean Jet costs ¥7,800 one-way and takes approximately 82 minutes in summer (Apr–Nov) / ~101 minutes in winter (Dec–Mar) from Naha to Kumejima. RAC flights cost from ¥9,000 and take about 30 minutes. The jetfoil offers a strong balance of speed and affordability, launching May 1, 2026.

*Photos are for illustrative purposes only

With the launch of the Kumejima Ocean Jet on May 1, 2026, travelers to Kumejima Island now have a compelling alternative to flying. This guide compares the new high-speed jetfoil service with RAC (Ryukyu Air Commuter) flights across every factor that matters: cost, time, comfort, booking flexibility, and overall convenience.

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Price Comparison

The Kumejima Ocean Jet costs ¥7,800 one-way (confirmed March 2026), with a round-trip total of ¥15,600. RAC flight prices vary by season and booking timing, starting from approximately ¥9,000 for advance purchase fares and rising to ¥15,000–18,000 for standard fares. The jetfoil offers a fixed, predictable price regardless of when you book — a significant advantage for budget-conscious travelers.

Travel Time Comparison

RAC flights take approximately 30 minutes in the air. However, when accounting for the recommended 60-minute early arrival at Naha Airport, security screening, boarding, and deplaning, the total door-to-door time often exceeds 2 hours. The Kumejima Ocean Jet takes approximately 82 minutes from Tomari Port to Kanegusuku Port, with a simpler boarding process that typically requires arriving only 20–30 minutes before departure.

Comfort and Experience

The jetfoil “Tsumugi” is a Boeing 929 hydrofoil that lifts above the water surface during operation, resulting in a remarkably smooth ride with minimal wave impact. The vessel seats 230 passengers with ocean views throughout the journey. RAC operates DHC-8 turboprop aircraft seating approximately 50 passengers, offering aerial views of the Okinawan islands but with the typical noise and vibration of propeller aircraft.

Frequently Asked Questions

Q: Which is cheaper, the jetfoil or flying?
A: The jetfoil is cheaper at a fixed ¥7,800 one-way. RAC flights start from about ¥9,000 but can exceed ¥15,000 depending on the season.

Q: Which is faster, the jetfoil or flying?
A: Flight time is 30 minutes vs approximately 82 minutes for the jetfoil. However, total door-to-door time is often comparable when airport procedures are included.