The Physics of Flight
Helicopters don’t fly on “spirit”; they fly on Center of Gravity (CG) calculations. Every passenger’s weight impacts exactly where the helicopter balances in the air. For small aircraft like the Robinson R44 or the Hughes 500, a 20lb difference can be critical.
The Surcharge Thresholds
Most Kauai operators enforce a “Comfort Seat” policy for passengers exceeding a specific weight. This is not about judgment; it is about seating geometry and aircraft performance.
| Operator | Individual Limit | Couple/Group Limit | Surcharge Policy |
|---|---|---|---|
| Blue Hawaiian | 240 lbs | 470 lbs (Front Row) | Purchase extra seat at 50-100% cost. |
| Jack Harter | 250 lbs | 400 lbs (Combined) | Purchase extra seat. |
| Island Helicopters | 240 lbs | 420 lbs (Combined) | Purchase extra seat. |
| Mauna Loa (R44) | 275 lbs (Hard Limit) | 620 lbs (Hard Limit) | Cannot Fly if over limit. |
The “Check-In” Weighing

You will be weighed at the helipad. This is a non-negotiable step required by the FAA for manifest accuracy.
Warning: The Denial Zone
If you underestimate your weight on the booking form and show up significantly heavier, the operator has the right to deny you boarding. In many cases, this results in a **100% cancellation fee.**Tips for Heavier Travelers
- Book the Extra Seat Early: If you know you are over the limit, booking the “Comfort Seat” in advance is cheaper and easier than trying to solve it at the counter.
- Opt for the Eco-Star: The Airbus EC130 has a wider cabin and 23% more interior space than the AS350 “A-Star”. It is much more comfortable for larger passengers.
- The Private R44 Loophole: If you are a couple and one person is heavy (but under 275 lbs), booking a private R44 charter (like at Mauna Loa) is often cheaper than buying three seats on a turbine helicopter.