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.Cheap flights to Hawaii continue to amaze! American Airlines, Alaska, Hawaiian and United are currently offering flights from tons of cities including Denver (DEN), Newark (EWR), Houston (IAH), Oakland (OAK), Portland (PDX), San Diego (SAN), Seattle (SEA), San Jose (SJC), Los Angeles (LAX) and San Francisco (SFO) to Honolulu (HNL), Kona (KOA), Lihue (LIH) and Maui (OGG) from $353 round-trip. Most flights are available in the fall and winter months. Although limited, there are scattered dates in September and October 2018 and late January 2019 for discounted fares from Newark to Honolulu and Maui from $365 round-trip.To book, head to Google Flights and plug in your desired departure city. After finding the dates that work best for you, book with with an OTA such as Expedia or Priceline or directly with the airline.Airlines: American, Alaska, Hawaiian, UnitedRoutes: DEN/EWR/IAH/LAX/OAK/PDX/SAN/SEA/SFO/SJC to HNL/KOA/LIH/OGGCost: $353+ round-trip in economyDates: September 2018 – February 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)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.Here are a few examples of what you can book:San Francisco (SFO) to Kona (KOA) in December for $353 round-trip on Hawaiian:Houston (IAH) to Honolulu (HNL) in September for $354 round-trip on American:Oakland (OAK) to Lihue (LIH) in February 2019 for $357 round-trip on Hawaiian:Seattle (SEA) to Honolulu (HNL) in October for $363 round-trip on Hawaiian:Newark (EWR) to Maui (OGG) in October for $365 round-trip on United:Newark (EWR) to Honolulu (HNL) in September for $384 round-trip on American: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), 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.Featured image by Rob DeCamp Photography / Getty Images.