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.JetBlue is known for its amazing flash sales and great in-flight service. This morning, the airline launched a flash sale with 30% off deals on all routes departing the US. Round-trip flights can be had for as little as $62, with one-way fares starting at just $31. Additionally, you can cash in some TrueBlue points for a terrific value.Be sure to book before the flash sale ends on October 19 at 11:59pm ET. This promotion is available for departures on Monday through Saturday for travel dates between October 26–November 17 and November 29–December 15. If you purchase a round-trip fare, both the outbound and the return must be within these dates, however you can always book two one-way tickets instead if you need a flight in one direction that’s just outside the promotional window.Airline: JetBlueRoute: All routes (originating in the US)Cost: $31+ one-wayDates: Book by October 19 for travel October 26–November 17 and November 29–December 15.Booking Link: JetBluePay With: The Platinum Card from American Express (5x on airfare), Chase Sapphire Reserve, American Express® Gold Card, Citi Prestige (5x on airfare) or Chase Sapphire Preferred (2x on travel)Here are a few examples of what you can book:Washington D.C. (DCA) to Charleston (CHS) for $62 round-trip:Washington DC to Charleston for $62 round-trip.Washington D.C. (DCA) to Charleston (CHS) for 3,600 points + $11.20 round-trip:Washington D.C. (DCA) to Charleston (CHS) for 3,600 points + $11.20 round-trip.Washington D.C. (DCA) to Charleston (CHS) for 1,800 points + $5.60 one-way: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.Washington D.C. (DCA) to Charleston (CHS) for 1,800 points + $5.60 one-way.Boston (BOS) to Houston (HOU) for $90 round-trip:Boston to Houston for $90 round-trip.New York City (JFK) to Salt Lake City (SLC) for $132 round-trip:New York City to Salt Lake City for $132 round-trip.New York City (JFK) to Bridgetown (BGI) for $191 round-trip:New York City to Bridgetown for $191 round-trip.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, American Express® Gold Card or Citi Prestige (5x 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!