Update: Some offers mentioned below are no longer available – View the current offers hereWant 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 that 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.Get your fill of Spain’s famous tapas this fall or winter by booking these great round-trip flights to Madrid (MAD). Flights are available from East Coast cities including Miami (MIA), Boston (BOS) and Newark (EWR) on TAP Portugal for departures between November 2017 and January 2018. We’re seeing fares starting at just $331 — a steal for transatlantic flight. Find dates that work for you on Google Flights and then head on over to Orbitz or TAP to book your ticket.Airlines: TAP PortugalRoute: BOS/EWR/MIA to MADCost: $331+ round-trip in economyDates: November 2017 - January 2018Booking Link: TAP, ExpediaPay With: The Platinum Card from American Express (5x on airfare), Chase Sapphire Reserve, Citi Prestige (5x on airfare) or Chase Sapphire Preferred (2x on travel)Here are a few examples of what you can book:Boston (BOS) to Madrid (MAD) for $331 round-trip:Miami (MIA) to Madrid (MAD) for $347 round-trip:Newark (EWR) to Madrid (MAD) for $351 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.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, 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.If you’re able to score one of these tickets, please share the good news in the comments below!