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 11 p.m. 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.Cheap flights are available from the US to Dublin, Ireland beginning this fall through early next year. One-stop flights start at $312 round-trip while nonstop flights are available from just $336 round-trip. Most cities with cheap flights are on the east coast, however, there are cities such as Chicago available. All flights are booked into economy class with some restrictions, however, carry-on luggage is not restricted.Most flights are available in November and December, which means hotels and activities could be significantly less expensive than in the summer months. In December, Dublin also boasts a festive atmosphere to celebrate the Christmas holiday.If you’re in Dublin on Christmas Day, consider visiting the Dublin International Airport (DUB), which sees around two flights that day as the passenger terminal is completely closed. It is quite an eerie scene.To search, head to Priceline or Expedia.Airline: Aer Lingus, Air Canada, British Airways, TAP Portugal, Virgin AtlanticRoutes: BDL/BOS/JFK/MCO/MIA/ORD/PHL/WAS to DUBCost: $312+ 1-stop or $336+ nonstop round-trip in economyDates: select dates in October 2019 — January 2020Pay With: The Platinum Card® from American Express (5x on airfare booked directly with the airline), Citi Prestige Card (5x on airfare plus excellent trip delay insurance), Citi Premier® Card, Chase Sapphire Reserve, 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.Boston (BOS) to Dublin (DUB) for $312 round-trip on TAP Portugal via CheapOair:Boston (BOS) to Dublin (DUB) for $346 nonstop + round-trip on Aer Lingus:Philadelphia (PHL) to Dublin (DUB) for $327 round-trip on Air Canada via United:Washington DC (IAD) to Dublin (DUB) for $336 nonstop + round-trip on Aer Lingus:New York (JFK) to Dublin (DUB) for $346 nonstop + round-trip on Aer Lingus:Chicago (ORD) to Dublin (DUB) for $376 nonstop + round-trip on Aer Lingus:Orlando (MCO) to Dublin (DUB) for $388 round-trip on Virgin Atlantic, Aer Lingus via Expedia: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 on plus excellent trip delay insurance), Chase Sapphire Reserve, 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//