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 you use Google Flights to find dates to fly, then book through an online travel agency such as Orbitz or Expedia, which allows you to cancel flights without penalty by 11pm Eastern Time within one day of booking. However, if you’re using The Platinum Card® from American Express, you’ll need to book directly with the airline or through the Amex Travel portal to get 5x MR points. Remember: Fares may disappear quickly, so book right away and take advantage of Orbitz or Expedia’s courtesy cancellation if you’re unable to get the time away from work or family.If you were looking to head to South Korea, now’s the time to book. There are super low fares starting at $434 round–trip from a handful of major U.S. cities. These fares can regularly go for more than $1,000 so this is a great way to head to Asia and save some serious cash.To search, head to Google Flights and enter your origin and destination cities. Scroll through the calendar function to find dates and prices that work for you. Finally, click through to book directly with the airline or through an OTA like Priceline or Expedia. For some routes to get the absolute best price, you can search on SkyScanner or Momondo and book through an OTA. Just note that it may be harder to deal with some of the smaller OTA’s customer service if you want to change your flight or if something goes wrong.Airline: China Eastern, EVA Air, Hong Kong AirlinesRoutes: JFK/LAX/SFO/ORD/SEA to ICNCost: $433+ round-trip in economyDates: September – March 2020Pay With: The Platinum Card® from American Express (5x on airfare booked directly with the airline), Citi Prestige Card (5x on airfare), Citi Premier® Card, Chase Sapphire Reserve, American Express® Gold Card (3x on airfare) or Chase Sapphire Preferred Card (2x on travel)Here are a few examples of what you can book:Los Angeles (LAX) to Seoul (ICN) for $434 round-trip on Hong Kong Airlines via ExploreTripSan Francisco (SFO) to Seoul (ICN) for $461 round-trip on Hong Kong Airlines via ExploreTripSign 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.Chicago (ORD) to Seoul (ICN) for $514 round-trip on China Eastern Airlines via ExploreTripNew York (JFK) to Seoul (ICN) for $520 round-trip on China Eastern Airlines via ExploreTripMaximize Your PurchaseDon’t forget to use a credit card that earns additional points on airfare purchases, such as The Platinum Card® from American Express (5x on flights booked directly with airlines or American Express Travel), Citi Prestige Card (5x on airfare), Chase Sapphire Reserve, American Express® Gold Card, Citi Premier® Card (3x on airfare) or the Chase Sapphire Preferred Card (2x on all travel purchases). Check out this post for more on maximizing airfare purchases.H/T: Scott’s Cheap FlightsFor more TPG news delivered each morning to your inbox, sign up for our daily newsletter here: https://thepointsguy.com/mailing-list//Featured Photo by Alex Barlow/Getty Images.