Update: Some offers mentioned below are no longer available – View the current offers hereWant 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 American Express Platinum Card, 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.Several carriers are offering cheap fares on flights from a variety of US cities to some of Southeast Asia’s most popular destinations. Score a round-trip ticket from Los Angeles (LAX) to Singapore (SIN) for as little as $435 on Xiamen Air. Deals are also available from cities like Seattle (SEA), Washington, D.C. (IAD), Newark (EWR) and San Francisco (SFO) to other cities such as Ho Chi Minh City (SGN), Bangkok (BKK) and Hong Kong (HKG). These discounted fares are generally available from October 2017 through March 2018, but exact availability will depend on your origin and destination. We recommend doing your research through Google Flights and then booking either directly through the airlines themselves or with an OTA such as Expedia or Orbitz.Airlines: Air China, ANA, Asiana, United, XiamenRoutes: LAX/EWR/SEA/SFO/IAD to SIN/BKK/HKG/SGNCost: $435+ round-trip in economyDates: October 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 (2x on travel)Here are a few examples of what you can book:Los Angeles (LAX) to Singapore (SIN) for $435 round-trip on Xiamen Air:Newark (EWR) to Bangkok (BKK) for $469 round-trip on Air China:Seattle (SEA) to Hong Kong (HKG) for $517 round-trip on Asiana: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.San Francisco (SFO) to Ho Chi Minh City (SGN) for $530 round-trip on ANA:Washington, D.C. (IAD) to Bangkok (BKK) for $615 round-trip on ANA/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!