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.Air France and KLM are offering cheap business-class fares on flights from Europe to the US operated by partner Delta Air Lines. You can fly round-trip from Berlin (TXL) to New York (JFK) for $1,130 round-trip nonstop in business class with Delta on its Boeing 767 aircraft.There’s wide open availability throughout July and August — including on the 4th of July. In order to get the lowest fares, you must book with KLM or Air France. Keep in mind that these fares are for round-trip travel from Europe to New York. They don’t work in the opposite direction.To search, head to Google Flights and enter your origin and destination cities. Scroll through the calendar function to find dates and prices that work for you. Finally, click through to book directly with KLM or Air France.Airlines: DeltaRoutes: TXL to JFKCost: $1,130+ round-trip nonstop in business classTravel Dates: July-AugustPay With: The Platinum Card® from American Express (5x on airfare booked directly with the airline), Citi Prestige Card (5x on airfare), Citi Premier® Card, Chase Sapphire Reserve, American Express® Gold Card (3x on airfare) or Chase Sapphire Preferred Card (2x on travel)Here are a few examples of what you can book:Berlin (TXL) to New York (JFK) for $1,130 round-trip nonstop with Delta via KLM: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.Berlin (TXL) to New York (JFK) for $1,130 round-trip nonstop with Delta via KLM:Berlin (TXL) to New York (JFK) for $1,130 round-trip nonstop with Delta via Air France: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), Citi Prestige® Card (5x on airfare), 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.H/T: Secret Flying