Update: Some offers mentioned below are no longer available. View the current offers here.JetBlue is known for amazing flash sales and good customer service. While this sale doesn’t include $30 transcontinental flights, many short and medium-haul routes in its network are heavily discounted for summer and fall travel. Popular destinations like Nantucket (ACK), Martha’s Vineyard (MVY) and Nassau, Bahamas (NAS) are insanely cheap. Better yet, availability is pretty wide open on many routes and you can use True Blue points for terrific value. Be sure to book before the sale ends on June 29 at midnight ET.Score some cheap flights to popular vacation destinations with JetBlue’s two-day flash sale.A great example of this is a one way flight from Fort Lauderdale (FLL) to Nassau (NAS) which costs $38.90 one way with the sale. You can also redeem 900 points + $5.60 in taxes. When you subtract the taxes on the award ticket, ($33.30/900 points) = 3.7 cents per mile value; this is unheard of for True Blue points which TPG values at between 1 and 1.4 cents each. Most other routes available on the sale can be redeemed with points for around 2 cents per mile each, so definitely make sure to check what the point cost is as well.One way fares on JetBlue starting from $34 one-way.Airline: JetBlueCost: $34+ one-wayDates: July - October 2016Booking Link: JetBlue.comPay With: American Express Premier Rewards Gold, Citi Prestige or Chase Sapphire PreferredHere are some examples of what you can book:New York (JFK) to Bermuda (BDA) one-way for $89 or 4,600 points + $6 in taxes: New York (JFK) to Bermuda (BDA) for 4,600 points one-way.New York (JFK) to Bermuda (BDA) for $89 one-way.Fort Lauderdale (FLL) to Nassau (NAS) one-way for $39 or 900 points +$6 in taxes:Fort Lauderdale (FLL) to Nassau (NAS) for $39 one-way.Fort Lauderdale (FLL) to Nassau (NAS) for 900 points, one-way.New York (JFK) to Nantucket (ACK) for $76 round-trip or 4,200 points +$11 in taxes:New York (JFK) to Nantucket (ACK) for $76 round-trip.New York (JFK) to Nantucket (ACK) for 4,200 points round-trip.San Fransisco (SFO) to Long Beach (LGB) for $84 round-trip: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 Fransisco (SFO) to Long Beach (LGB) for $84 round-trip.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!