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 American Express Platinum Card, you’ll need to book directly with the airline or through 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.Flights from the East Coast to Europe are on sale, and you can fly from Boston (BOS), Miami (MIA) and New York City (JFK) to Barcelona (BCN), Brussels (BRU), Madrid (MAD) and Paris (ORY) starting at $348 round-trip from October 2017 through March 2018.Most flights are operated by TAP Portugal with the New York to Brussels route being serviced by Oneworld carriers like American Airlines, British Airways, Finnair and Iberia. Plug your ideal departure city and destination into Google Flights to find your preferred dates, then book directly with the carrier or through Orbitz or Expedia to get in on these great flight specials.Airlines: British Airways, Finnair, Iberia and TAP PortugalRoutes: BOS/JFK/MIA to BCN/BRU/ORY/MADCost: $348+ round-trip in economyDates: October 2017 - March 2018Booking Link: Orbitz or ExpediaPay With: The Platinum Card from American Express (5x on airfare), Chase Sapphire Reserve, American Express® Gold Card, Citi Prestige (3x on airfare) or Chase Sapphire Preferred (2x on travel)Here are a few examples of what you can book:New York City (JFK) to Barcelona (BCN) for $348 round-trip on TAP:New York City (JFK) to Madrid (MAD) for $349 round-trip on TAP: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 City (JFK) to Paris (ORY) for $367 round-trip on TAP:Boston (BOS) to Barcelona (BCN) for $395 round-trip:New York City (JFK) to Brussels (BRU) for $381 round-trip on British Airways/Iberia:Miami (MIA) to Madrid (MAD) for $410 round-trip on TAP:Maximize Your PurchaseDon’t forget to use a credit card that earns additional points on airfare purchases, such as the American Express Platinum Card (5x on flights booked directly with airlines or American Express Travel), Chase Sapphire Reserve, American Express® Gold Card or Citi Prestige (3x on airfare) or the Chase Sapphire Preferred (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!