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, which allows you to cancel flights without penalty by 11pm Eastern Time within one day of booking. Remember: Fares may disappear quickly, so book right away and take advantage of Orbitz’s courtesy cancellation if you’re unable to travel. Additionally, keep in mind that discounted partner fares may not earn miles with US-based carriers.Flying short-haul in the US can often be very expensive in terms of cost per mile. But right now, American, Delta and United are all discounting fares from New York, Washington, D.C., Philadelphia and Boston to Chicago and Dallas. The cheapest flights depart on Tuesdays, Wednesdays, and Saturdays. You can use Google Flights to search for the flights you want and then complete the booking directly with the airlines or on Priceline. These discounted domestic fares are available for departures from now through next summer.Airline: American, Delta and UnitedRoute: East Coast cities to ORD and DFW.Cost: $76+ round-trip in economyDates: August 2016 - May 2017Booking Link: PricelinePay With: American Express Premier Rewards Gold, Citi Prestige or Chase Sapphire PreferredHere are some examples of what you can book:Boston (BOS) to Chicago (ORD) for $76 round-trip on United in September:Boston (BOS) to Chicago (ORD) for $76 round-trip on United.Baltimore (BWI) to Chicago (ORD) for $76 round-trip on United in September:Baltimore (BWI) to Chicago (ORD) for $76 round-trip on United.New York (LGA) to Chicago (ORD) for $76 round-trip on United 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 (LGA) to Chicago (ORD) for $76 round-trip on United.Philadelphia (PHL) to Chicago (ORD) for $96 round-trip on American in September:Philadelphia (PHL) to Chicago (ORD) for $96 round-trip on American.New York (LGA) to Dallas (DFW) for $96 round-trip on Delta in November:New York (LGA) to Dallas (DFW) for $96 round-trip on Delta.Boston (BOS) to Dallas (DFW) for $80 round-trip on American in November:Boston (BOS) to Dallas (DFW) for $80 round-trip on American.Chicago (ORD) to Dallas (DFW) for $76 round-trip on American in October:Chicago (ORD) to Dallas (DFW) for $76 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 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!H/T: The Flight Deal