A Comparison of Interisland Travel by Sea and by Air

HONOLULU (KHNL) - The Hawaii Superferry has arrived, and the company is now taking reservations.

Beginning in September, the Hawaii Superferry will offer daily service from Oahu to Maui and Kauai.

But with interisland airfares at their lowest, what's the cheapest way for you to travel?

We did an online price comparison for you.

We picked the last weekend of September for a family of four traveling to Maui.

If you're traveling by ferry, the one-way fare is $56.25 for adults and $46.25 for children 2 to 12 years old.

If you add a standard size car, that's an additional $60.94.

That's a total of almost $700 roundtrip. This includes fuel surcharges as well as advanced purchase and web booking discounts.

Terry O'Halloran, Director of Business Development for the Hawaii Superferry says "We've done similar comparisons and we've found Hawaii Superferry for a family of four with two kids is very comparable for a three, four, five day trips to other islands."

All three local airlines are promoting $39 one-way air fares. If you add a three-day car rental at $34 a day for a full-size car, the total cost of the trip by air will run you almost $490 including taxes and fees.

Super ferry versus Go, Hawaiian or Aloha; a difference of more than $200.

Even if you buy your superferry tickets 14 days in advance for off-peak travel, the cost to travel by sea is still higher than by air.

Hawaii Superferry officials say, when comparing air travel with the superferry, one of the most important factors to consider, is you get a much different travel experience by sea.