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.We’re always looking for flight deals no matter the carrier or whether we can score premium economy and right now we’re seeing deals for nonstop flights from New York City to various European cities for less than $400 on the low-cost carrier, Norwegian Air.These cheap tickets are available from November through January, although you’ll see the most discounted prices earlier in the year. Even though Norwegian is a budget airline that charges for things like seat selection, checked bags and meals, nonstop flights to major European cities for less than $400 are hard to pass up.Use Google Flights to search for your preferred departure and destination and then book directly through Norwegian, so you can choose any add-ons.Airline: Norwegian AirRoutes: EWR/JFK to LGW/NYO/MAD/CPHCost: $340+ round-tripDates: November 2018 – January 2019Booking 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)New York (JFK) to London (LGW) nonstop for $385 round-trip on Norwegian:New York (JFK) to Stockholm (NYO) nonstop for $346 round-trip on Norwegian: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 Madrid (MAD) nonstop for $380 round-trip on Norwegian:New York (JFK) to Copenhagen (CPH) nonstop for $340 round-trip on Norwegian: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.