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.Summer weather is upon us… sometimes with a vengeance. With this JetBlue fare sale, you can get away from the unbearable heat of the Concrete Jungle or escape Beantown for the beautiful island of Nantucket, starting at $134 round-trip. These fares are specific, but may provide the perfect weekend or weekday escape when you just need a break from it all.Airline: JetBlueRoutes: BOS/JFK to ACKCost: $134+ round-tripDates: August–October 2018Booking Link: Orbitz, Expedia or directly with the airlinePay With: The American Express Platinum Card (5x on airfare), Chase Sapphire Reserve, Citi Prestige (5x on airfare plus excellent trip delay insurance) or Chase Sapphire Preferred Card (2x on travel)Boston (BOS) to Nantucket (ACK) in August for $134 nonstop round-trip on JetBlue: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.New York (JFK) to Nantucket (ACK) in September for $154 nonstop round-trip on JetBlue:New York (JFK) to Nantucket (ACK) in October for $154 nonstop round-trip on JetBlue:Maximize Your PurchaseDon’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), Chase Sapphire Reserve, 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.