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 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.Low-cost carrier WOW Air is offering great fares to a couple of Europe’s (and the world’s) most popular cities — London and Paris. You can score tickets from just $300 round-trip, but be aware that the airline will charge you for just about everything. These discounted fares are generally available from November 2017 through March 2018 but exact availability will depend on your origin and destination. We recommend doing your research through Google Flights and then booking either directly through the airlines themselves or with an OTA such as Expedia or Orbitz.Airlines: WOW AirRoutes: BOS/PIT/LAX/SFO/ORD/BWI to LGW/CDGCost: $300+ round-trip in economyDates: November 2017 — March 2018Booking Link: Orbitz or ExpediaPay With: The Platinum Card from American Express (5x on airfare), Chase Sapphire Reserve, Citi Prestige (5x on airfare) or Chase Sapphire Preferred Card (2x on travel)Here are a few examples of what you can book:Boston (BOS) to Paris (CDG) for $300 round-trip:Pittsburgh (PIT) to Paris (CDG) for $300 round-trip:Los Angeles (LAX) to London (LGW) for $320 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.San Francisco (SFO) to London (LGW) for $330 round-trip:Chicago (ORD) to Paris (CDG) for $340 round-trip:Baltimore (BWI) to Paris (CDG) for $380 round-trip: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!