Update: Some offers mentioned below are no longer available. View the current offers here.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.Last week, we shared an excellent Delta fare from Los Angeles (and other US cities) to Tokyo, priced at just $391 round-trip. Believe it or not, that fare is still available, and now United’s joining the cheap-NRT party with its own fantastic sale. The cheapest flights are on United and ANA’s nonstops from Chicago, priced at just $435 round-trip, but you can also fly from many other US cities for $100-200 more.Airline: UnitedRoute: BOS, DFW, ORD, PHL and more to NRTCost: $435+ round-trip in economyDates: February 2016 through May 2016Booking Link: OrbitzPay With: American Express Premier Rewards Gold, Citi Prestige or Chase Sapphire PreferredSearch for your flight here:Here are a few examples of what you can book:Chicago (ORD) to Tokyo (NRT) for $435 on United (earns 12,548 PQMs):Chicago (ORD) to Tokyo (NRT) for $435 on United.Boston (BOS) to Tokyo (NRT) for $575 on United (earns 14,282 PQMs):Boston (BOS) to Tokyo (NRT) for $575 on United.Philadelphia (PHL) to Tokyo (NRT) for $599 on United (earns 13,904 PQMs):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.Philadelphia (PHL) to Tokyo (NRT) for $599 on United.Dallas (DFW) to Tokyo (NRT) for $650 on United (earns 13,178 PQMs):Dallas (DFW) to Tokyo (NRT) for $650 on United.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.H/T: The Flight DealIf you’re able to score one of these tickets, please share the good news in the comments below!