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 the 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.JetBlue is running a great flash sale with flights from numerous cities on both coasts starting at just $20 or 400 JetBlue TrueBlue points plus fees one-way.Flights are available from cities such as New York (JFK), Boston (BOS), Ft. Lauderdale (FLL) and Washington DC (DCA). You can even fly to some international destinations like Bermuda (BDA) and Grand Cayman (GCM) one-way for at reduced prices. Departure dates and times are very specific with this sale and travel dates are Sept. 1 - Nov. 1. Keep in mind that all tickets are in JetBlue’s Blue class, which means you won’t get an included checked bag and you’ll have to pay extra to change your ticket unless you have elite status or an eligible JetBlue credit card.To search, head to JetBlue’s flash fares page and filter the list by your departure city.This is a good opportunity to use your TrueBlue points since award redemptions are tied to the cost of the ticket. You can transfer points from Citi ThankYou, Amex Membership Rewards and Chase Ultimate Rewards to JetBlue.Airlines: JetBlueRoutes: Domestic and international routesCost: $20+ one-way or 400+ points plus feesTravel Dates: Sept. 1 – Nov. 1Book By: Tonight (July 9) by 11:59pm ESTPay With: The Platinum Card® from American Express (5x on airfare booked directly with the airline), Citi Prestige Card (5x on airfare ), JetBlue Plus Card (6x on JetBlue purchases), Citi Premier® Card, Chase Sapphire Reserve (3x on airfare), American Express® Gold Card, (3x on airfare booked directly with the airline or via amextravel.com) or Chase Sapphire Preferred Card (2x on travel)Here are a few examples of what you can book: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.Boston (BOS) to Charleston (CHS) for 400 points + $5.60 one-way:New York (JFK) to Portland (PWM) for $20 one-way:Boston (BOS) to Martha’s Vineyard for $20 one-way:Albany (ALB) to Ft. Lauderdale (FLL) for $30 one-way:New York (JFK) to Bermuda (BDA) for 2,400 points + $5.60 one-way:Westchester County (HPN) to Orlando (MCO) for 2,700 points + $5.60 one-way:,Boston (BOS) to Mexico City (MEX) for 1,800 points + $32 one-way:Maximize Your PurchaseIf you decide to pay using JetBlue and have a card such as the JetBlue Plus Card, you’ll get 10% of your redeemed points back making these even sweeter deals. Having this card also means a free checked bag for the cardholder and up to three others on the reservation, even when booking the least expensive Blue fares.If you pay with cash instead of points, don’t forget to use a credit card that earns additional points on airfare purchases, such as The Platinum Card® from American Express (5x on flights booked directly with airlines or American Express Travel), Citi Prestige Card (5x on airfare), JetBlue Plus Card (6x on JetBlue purchases), Chase Sapphire Reserve, American Express® Gold Card, Citi Premier® Card (3x on airfare) or the Chase Sapphire Preferred Card (2x on all travel purchases). Check out this post for more on maximizing airfare purchases.