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.TAP Portugal is running a sale pricing flights to Barcelona (BCN) and Madrid (MAD) for cheap. We’re seeing flights from New York (JFK), Newark (EWR) Boston (BOS), Miami (MIA), Philadelphia (PHL), Los Angeles (LAX), Chicago (ORD) and Washington DC (IAD) with prices starting at just $270 round-trip. And if you’re wanting to travel to these popular destinations during peak summer dates when prices are usually north of $800, you can find tickets for around $450.American and Iberia have a handful of cheap flights, too. All three carriers are selling tickets in basic economy, so you’ll have to pay extra if you want to check a bag or select a seat.For more on Barcelona and Madrid, check out our guides:Every Tourist in Madrid, Spain Makes the Same 12 MistakesYour Points and Miles Guide to Madrid8 Things to Know Before You Go to Barcelona, SpainYour Points and Miles Guide to BarcelonaTo 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 the airline or through an OTA like Priceline or Expedia.Airline: TAP Portugal, Iberia, AmericanRoutes: JFK/EWR/BOS/MIA/LAX/PHL/ORD/IAD to BCN/MADCost: $270+ round-trip in economyDates: March-NovemberPay 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 Card, 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: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) for $270 round-trip on TAP Portugal via Priceline:New York (JFK) to Barcelona (BCN) for $329 round-trip on TAP Portugal via Priceline:Miami (MIA) to Barcelona (BCN) for $339 round-trip on TAP Portugal via Priceline:Los Angeles (LAX) to Barcelona (BCN) for $360 round-trip on Iberia:Boston (BOS) to Barcelona (BCN) for $385 round-trip on TAP Portugal via Priceline:Chicago (ORD) to Barcelona (BCN) for $389 round-trip on American/Iberia:Philadelphia (PHL) to Barcelona (BCN) for $402 round-trip on Iberia/American :Washington DC (IAD) to Barcelona (BCN) for $407 round-trip on TAP Portugal via Priceline:Miami (MIA) to Barcelona (BCN) for $446 round-trip on TAP Portugal during peak summer: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 Card, 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.For more TPG news delivered each morning to your inbox, sign up for our daily newsletter here: https://thepointsguy.com/mailing-list//