“Mistake” airfares (whether they’re actual mistakes or just unpublicized), can end up saving you hundreds of dollars on trips to dream destinations.

If you’re free at the beginning of March (the 1st or 3rd), you can take advantage of “mistake airfares” filed by both United and American Airlines for travel from Dallas-Ft. Worth to Hawaii for under $200. As a point of reference, American Airline’s current Hawaii airfare sale, which has some great deals, offers airline tickets from DFW to Honolulu for $609.

These airfares can disappear in a flash, so you have to know about them as soon as possible. Fortunately, FareCompare users who are signed up for our free airfare alerts were notified and knew about these ridiculously cheap flights before most people caught wind of it. These airfares are known to pop up from departure cities all over the country to destinations all over the world, so keep reading to learn how you can capitalize on them…