Update: Some offers mentioned below are no longer available. View the current offers here.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.You can once again book $80 flights between New York (LGA) and Chicago (ORD) for travel dates this spring. The three major US airlines — American, Delta and United — all have discounted fares for nonstop travel originating in both cities, although Delta and United seem to have the best availability. Travel dates are available between February and May, although you’ll find the best availability on Tuesdays and Wednesdays. Note that Delta flights book into the E fare class, which doesn’t permit seat assignments before check-in, complimentary upgrades and other perks.Airlines: American, Delta and UnitedRoutes: New York to Chicago (and vice-versa)Cost: $80+ round-trip in economyDates: March 2016 through May 2016Elite Mileage Earning: At least 1,466 elite-qualifying milesFare Class: O (AA), E (DL), N (UA)Booking Link: OrbitzPay With: American Express Premier Rewards Gold, Citi Prestige or Chase Sapphire Preferred CardSearch for your flight here:Here are a few examples of what you can book:New York (LGA) to Chicago (ORD) for $80 on American (earns 1,467 EQMs):New York (LGA) to Chicago (ORD) for $80 on American.New York (LGA) to Chicago (ORD) for $80 on Delta (earns 1,466 MQMs):New York (LGA) to Chicago (ORD) for $80 on Delta.New York (LGA) to Chicago (ORD) for $80 on United (earns 1,466 PQMs):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 $80 on United.Chicago (ORD) to New York (LGA) for $80 on American (earns 1,467 EQMs):Chicago (ORD) to New York (LGA) for $80 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!