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 that 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 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.Last week, JetBlue was offering fantastic prices on transcontinental flights from New York (JFK) to Los Angeles (LAX) and San Francisco (SFO). Now, other airlines are getting in on this low-fare fun, offering round-trip tickets from just $216 round-trip. If you’re looking to do an end-of-year mileage run to push yourself over the threshold for a certain elite status, this is definitely a no-brainer! However, these fares seem to only be available on certain days in early December, so you’ll have to have some flexibility in order to take advantage of this deal.Airline: American, Delta, JetBlue, United and Virgin AmericaRoute: JFK — LAX, SFOCost: $216+ round-tripDates: December 2016Booking Link: Orbitz or Expedia Pay With: American Express Platinum Card (5x on airfare), Chase Sapphire Reserve, American Express Premier Rewards Gold, Citi Prestige (3x on airfare) or Chase Sapphire Preferred (2x on travel)Here are a few examples of what you can book:New York (JFK) to San Francisco (SFO) for $216 round-trip on JetBlue:Newark (EWR) to San Francisco (SFO) for $216 round-trip on United:Newark (EWR) to San Francisco (SFO) for $216 round-trip on Virgin America: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 San Francisco (SFO) for $223 round-trip on American:New York (JFK) to Los Angeles (LAX) for $236 round-trip on Delta:New York (JFK) to Los Angeles (LAX) for $236 round-trip on JetBlue:Newark (EWR) to Los Angeles (LAX) for $236 round-trip on United:New York (JFK) to Los Angeles (LAX) for $256 round-trip on Virgin America:New York (JFK) to Los Angeles (LAX) for $266 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 Platinum Card (5x on flights booked directly with airlines or American Express Travel), Chase Sapphire Reserve, 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!