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.Budget carrier Icelandair is running a sale to a slew of European destinations including Amsterdam (AMS), Stockholm (ARN), Paris (CDG), Copenhagen (CPG), London (LHR/LGW), Oslo (OSL) and Zurich (ZRH). You can find flights from as little as $306 roundtrip with US departure cities including Boston (BOS), Denver (DEN), Washington DC (IAD), New York (JFK), Chicago (ORD) and Philadelphia (PHL). We recommend using Google Flights to find your desired departure city, destination and dates.We’ve reviewed Icelandair economy in the past, and it’s received solid marks. Just keep in mind that Icelandair has transformed itself to a budget carrier, so you’ll have to pay for a checked bag. These fares still include a carry-on bag, seat selection and non-alcoholic drinks. Competitor and ultra low-cost carrier WOW Air charges for all of the former items. Icelandair is partner with Alaska Airlines, so you could even earn some Alaska miles on this cheap European journey.Airline: IcelandairRoutes: BOS/DEN/IAD/JFK/ORD/PHL to AMS/ARN/CDG/CPH/LHR/LGW/OSL/CDG/ZRHCost: $306+ round-trip in economyDates: September 2018 to December 2019Booking Link: Orbitz, Expedia or directly with the airlinePay With: The Platinum Card® from American Express (5x on airfare), Chase Sapphire Reserve, Citi Prestige (5x on airfare plus excellent trip delay insurance) or Chase Sapphire Preferred Card (2x on travel)Washington (IAD) to Copenhagen (CPH) for $306 round-trip in October:Boston (BOS) to Copenhagen (CPH) for $306 round-trip in October:New York (JFK) to Amsterdam (AMS) for $320 round-trip in September: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 London (LGW) for $373 round-trip in September:Chicago (ORD) to Oslo (OSL) for $409 round-trip in October:Philadelphia (PHL) to Copenhagen (CPH) for $416 round-trip in November:Denver (DEN) to Paris (CDG) for $420 round-trip in October: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.