Update: Some offers mentioned below are no longer available. View the current offers here.Airfare deals are typically only available on limited dates. We recommend that you use Google Flights to find dates to fly, then book through an online travel agency, such as Orbitz, which allows you to cancel flights without penalty by 11pm Eastern Time within one day of booking. Remember: Fares may disappear quickly, so book right away and take advantage of Orbitz’s courtesy cancellation if you’re unable to travel.We found some more fantastic fares to Miami, with deals available on American and US Airways, as well as Delta. Last week we wrote about the $106 fares from Chicago and Dallas for the upcoming fall and early winter, and this week you still have time to grab a flight for a beach-weekend this fall.You’ll find even lower fares from Atlanta, Dallas and other cities that are closer to Florida, but if you’re looking to travel from the Northeast, the best available fare is $126 from Baltimore (BWI) on American. There are also some good deals available from Boston (starting at $151 on American) and New York - LGA (starting at $166 on Delta). If you’re traveling from New York, you’ll find the best availability on Delta, with low fares available between September and December.Airline(s): American/US Airways, DeltaRoute(s): ATL, BOS, BWI, DFW, LGA, ORD and more to MIACost: $97-$166 round-trip in economyDates: September 2015 through December 2015Elite Mileage Earning: At least 1,891 elite-qualifying miles or 2,180 medallion-qualifying milesFare Class: O (AA) or V (DA)Booking Link: OrbitzPay With: American Express Premier Rewards Gold, Citi Prestige or Chase Sapphire Preferred CardHere are a few examples of what you can book:Baltimore (BWI) to Miami (MIA) for $126 in September on American (earns 1,891 EQMs):Baltimore (BWI) to Miami (MIA) for $126 in September on American.Boston (BOS) to Miami (MIA) for $151 in September on American (earns 2,516 EQMs):Boston (BOS) to Miami (MIA) for $151 in September on American.New York (LGA) to Miami (MIA) for $166 in September on Delta (earns 2,180 MQMs):Sign up for our daily newsletterEmail addressSign upI would like to subscribe to The Points Guy newsletters and special email promotions. The Points Guy will not share or sell your email. See privacy policy.New York (LGA) to Miami (MIA) for $166 in September on Delta.Maximize Your PurchaseDon’t forget to use a credit card that earns additional points on airfare purchases, such as the American Express Premier Rewards Gold or Citi Prestige (3x on airfare) or the Chase Sapphire Preferred Card (2x on all travel purchases). Check out this post for more on maximizing airfare purchases.If you’re able to score one of these tickets, please share the good news in the comments below!