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 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.Hong Kong is typically an expensive destination to fly to, but several airlines are offering great fares from select US cities. You can fly for as little as $427 round-trip from Seattle (SEA) but discounted tickets are also available from Los Angeles (LAX), Detroit (DTW) and Newark (EWR) There’s plenty of availability between November 2017 and March 2018. Your best bet is to search using the calendar function on Google Flights and then clicking through to book directly with the airlines or through an OTA like Expedia or Orbitz.Airlines: Air Canada, American, UnitedRoutes: DTW/EWR/LAX/SEA to HKGCost: $427+ round-trip in economyDates: November 2017 — March 2018Booking Link: Orbitz or ExpediaPay With: The Platinum Card from American Express (5x on airfare), Chase Sapphire Reserve, Citi Prestige (5x on airfare) or Chase Sapphire Preferred Card (2x on travel)Here are a few examples of what you can book:Seattle (SEA) to Hong Kong (HKG) for $427 round-trip on Air Canada:Los Angeles (LAX) to Hong Kong (HKG) for $432 round-trip on American:Detroit (DTW) to Hong Kong (HKG) for $469 round-trip on United: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.Newark (EWR) to Hong Kong (HKG) for $563 round-trip on United:Maximize Your PurchaseDon’t forget to use a credit card that earns additional points on airfare purchases, such as the American Express Platinum Card (5x on flights booked directly with airlines or American Express Travel), Chase Sapphire Reserve, or Citi Prestige (5x on airfare) or the Chase Sapphire Preferred (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!H/T: Scott’s Cheap Flights