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.Air China is offering a flash sale from the US cities including New York, San Francisco (SFO) and San Jose (SJC) to major Asian gateways including Tokyo (NRT), Seoul (ICN) and Hong Kong (HKG). While we have seen sales to Hong Kong and Seoul recently, Tokyo has been left out — until today. A sub-$400 flight from New York to the Japanese capital is quite a deal, even though it will require a stop in Beijing (PEK) in each direction. In order to score this deal, you must book by July 24 and travel between October 16, 2016 and March 31, 2017. To book, go directly to Air China’s website and view the promotion.Airline: Air ChinaRoute: US Cities to Asia Cost: $387+ round-trip in economyDates: October 2016 - March 2017Booking Link: OrbitzPay With: American Express Premier Rewards Gold, Citi Prestige or Chase Sapphire PreferredHere are some examples of what you can book:New York to Tokyo for $399 round-trip on Air China:New York to Tokyo for $399 round-trip.San Fransisco (SFO) to Tokyo for $387 round-trip on Air China:San Fransisco (SFO) to Tokyo (HND) for $387 round-trip.Newark (EWR) to Seoul (ICN) for $399 round-trip on Air China: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 (EWR) to Seoul (ICN) for $399 round-trip in October.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!H/T: The Flight Deal]