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.Several airlines including Delta, JetBlue and United are offering great deals on transcontinental flights beginning this fall. Fly from NYC to many destinations on the West Coast including Seattle (SEA), Las Vegas (LAS), San Diego (SAN) and Phoenix (PHX) from just $238 round-trip. Generally, we’re seeing availability from September 2017 through April 2018, though exact availability will depend on your destination and when you’re able to travel. As always, use Google Flights to begin planning your trip, and then complete booking directly through the airlines.Airlines: Delta, JetBlue, UnitedRoutes: JFK/EWR to LAS/SAN/SEA/PHXCost: $238+ round-trip in economyDates: September 2017 - April 2018Booking Link: Orbitz or ExpediaPay With: The Platinum Card from American Express (5x on airfare), Chase Sapphire Reserve, 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 Las Vegas (LAS) for $238 round-trip on Delta:New York (JFK) to Seattle (SEA) for $256 round-trip on Delta:New York (JFK) to Seattle (SEA) for $256 round-trip on JetBlue: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 Diego (SAN) for $260 round-trip on JetBlue:Newark (EWR) to Phoenix (PHX) for $264 round-trip on United:Newark (EWR) to Las Vegas (LAS) for $282 round-trip on United: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 (3x on airfare) or the Chase Sapphire Preferred (2x on all travel purchases). Check out 5 Things to Keep in Mind When You See an Insane Flight Deal, and 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!