be aware of holidays

When traveling in Hawaii, be aware of any holidays or special events that may fall on your travel dates or during your stay. Things like the Ironman Triathlon or the Honolulu Marathon can completely shut down entire routes to the airport - you don't want to miss your plane because of this! Also remember, if you are here over, say, the thanksgiving holiday, the day after will be the busiest shopping day of the year just like anywhere else in the country - so you probably would want to stay off the roads and maybe just hang out at the hotel pool or beach on that day.
Hawaii Events Calendar