Here's another round of those wonderful unadvertised sales to Hawaii that have been showing up by surprise every now and again. This time around it is from United Airlines (with a couple of fares from American), who are offering discount deals to four different Hawaiian Islands. These deals are available from August 28 through December 25, with departures needing to take place by early December. In most cases, these fares are available daily, but certain routes may require a long layover. You can click on the fares below for specific details on each route. All these fares book into regular economy, so you will be allowed your regular sized carry-on to take onboard.

Since this sale is unadvertised, it may disappear at any moment. If any of these routes catch your eye, we recommend booking ASAP. United Airlines will allow you to cancel free within 24 hours or put an itinerary on hold for an extended period for a small fee with its FareLock feature. If you are on the fence about booking, it's better to reserve something now and think it over.

United sale fares include:

Philadelphia to Honolulu $534 round-trip

Philadelphia to Maui $534 round-trip

Philadelphia to Kona $534 round-trip

Philadelphia to Kauai $534 round-trip

Miami to Honolulu $534 round-trip

Miami to Maui $534 round-trip

Miami to Kauai $592 round-trip

Charlotte to Honolulu $534 round-trip

Charlotte to Maui $533 round-trip

Charlotte to Kona $533 round-trip

Charlotte to Kauai $533 round-trip

Dallas DFW to Honolulu $484 round-trip

Dallas DFW to Maui $484 round-trip

Dallas DFW to Kona $484 round-trip

Dallas DFW to Kauai $484 round-trip

American fares include:

Newark to Honolulu $534 round-trip

Cleveland to Maui $494 round-trip

Cleveland to Honolulu $434 round-trip

While this particular sale is only limited to a few airports there are some other great prices to Hawaii out there today. Have a look at our full list of departures from the mainland to Honolulu HNLMaui OGGKauai LIH, and Kona KOA to see what is available from your closest airport. Mahalo!

For all late-breaking fare deals and sales make sure to follow us on Twitter @Airfarewatchdog.

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