Update: Some offers mentioned below are no longer available. View the current offers here.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, which allows you to cancel flights without penalty by 11pm Eastern Time within one day of booking. Remember: Fares may disappear quickly, so book right away and take advantage of Orbitz’s courtesy cancellation if you’re unable to travel. Additionally, keep in mind that discounted partner fares may not earn miles with US-based carriers.It seems like discounted round-trip flights to Europe are the norm recently, and this week is no different. Many airlines are offering heavily discounted fares to European cities such as Amsterdam (AMS), Istanbul (IST), Paris (CDG), Dublin (DUB), Frankfurt (FRA), Barcelona (BCN), Rome (FCO) and more right now, valid for departures from August 2016 all the way through May 2017. We’re seeing fares as low as $425 round-trip from San Francisco (SFO) to Istanbul (IST) this fall. Since these deals are so widespread, it’s best to use Google Flights to find your desired route and secure the best price.Airline: ManyRoute: US cities to EuropeCost: $425+ round-trip in economyDates: August 2016 - May 2017Booking Link: OrbitzPay With: American Express Premier Rewards Gold, Citi Prestige or Chase Sapphire PreferredHere are some examples of what you can book:San Fransisco (SFO) to Istanbul (IST) for $425 round-trip on Air Canada in November:San Francisco (SFO) to Istanbul (IST) for $425 round-trip on Air Canada.New York (JFK) to Amsterdam (AMS) for $532 round-trip on Delta in November:New York (JFK) to Amsterdam (AMS) for $532 round-trip on Delta.Chicago (ORD) to Amsterdam (AMS) for $467 round-trip on United in October:Chicago (ORD) to Amsterdam (AMS) for $467 round-trip on United.Salt Lake City (SLC) to Dublin (DUB) for $529 round-trip on American in August: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.Salt Lake City (SLC) to Dublin (AMS) for $529 round-trip on American.Maximize Your PurchaseDon’t forget to use a credit card that earns additional points on airfare purchases, such as the American Express Premier Rewards Gold or Citi Prestige (3x 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!H/T: The Flight Deal