Update: Some offers mentioned below are no longer available. View the current offers here.Want to see the latest flight deals as soon as they’re published? Follow The Points Guy on Facebook and Twitter, and subscribe to text message alerts from our deals feed, @tpg_alerts.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. Additionally, keep in mind that discounted partner fares may not earn miles with US-based carriers.Trying to escape the upcoming blizzards in Boston this winter? We’ve come across an amazing fare from Boston (BOS) to Buenos Aires (EZE) for $349 round-trip on Aeromexico in economy. The prices appears to be for dates from September through March 2017. Buenos Aires has become a premier destination recently thanks to the incredible food options, new hotel openings and rich culture.This fantastic deal could be a mistake fare, so you should hop on it before it disappears. Be sure to wait a few days (or weeks) before booking nonrefundable hotels, as Aeromexico may opt to cancel your ticket.Airline: AeromexicoRoute: BOS to EZECost: $349+ round-trip in economyDates: September to March 2017Booking Link: ExpediaPay With: Chase Sapphire Reserve, Premier Rewards Gold Card from American Express, Citi Prestige Card or Chase Sapphire PreferredHere are a few examples of what you can book:Boston (BOS) to Buenos Aires (EZE) for $349 round-trip in October:Boston (BOS) to Buenos Aires (EZE) for $349 round-trip in October.Boston (BOS) to Buenos Aires (EZE) for $349 round-trip in March: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.Boston (BOS) to Buenos Aires (EZE) for $349 round-trip in March.Maximize Your PurchaseDon’t forget to use a credit card that earns additional points on airfare purchases, such as the Chase Sapphire Reserve, 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.Featured Image courtesy of Shutterstock.H/T: Scott’s Cheap FlightsIf you’re able to score one of these tickets, please share the good news in the comments below!