I love the Kayak Buzz, a nifty feature that automatically ships via email you a range of prices broken down by month for any city you want to track. I've started tracking flights from top mainland cities with links to Hawaii.

Here's the first post. Let me know if these are useful. This was from a Kayak Buzz email dated 5/13/2007. Caveat usual, your mileage may vary. Etc Etc. Quick insight. The holiday penalty seems particularly small as fares are only roughly 33% higher going into the high season. The roundtrip price is hovering around $300 which is dang cheap, historically speaking. Check it out below.

San Francisco (SFO) to Honolulu (HNL)

Best Fare Month of Travel Travel Dates

$328+ Upcoming Weekends 14 - 17 Jun
$307+ May 2007 31 May - 5 Jun
$302+ Jun 2007 11 - 21 Jun
$307+ Jul 2007 23 Jul - 6 Aug
$302+ Aug 2007 22 - 29 Aug
$302+ Sep 2007 4 - 11 Sep
$302+ Oct 2007 10 - 25 Oct
$365+ Nov 2007 7 - 12 Nov
$410+ Dec 2007 6 - 11 Dec
$365+ Jan 2008 17 - 22 Jan
$395+ Feb 2008 3 - 11 Feb
$406+ Mar 2008 6 - 12 Mar

—Alex, 05/16/07