Southwest has round-trip flights from Dallas (DAL) to New York (LGA) for $108-$132, NONSTOP . About $54-$66 each-way. Flights August to November. No Fridays. Origin/Destination reversible.
Carry-on and checked bag are allowed for free. Southwest doesn’t charge change fees.
Additional Savings: Sam’s Club is selling $500 Southwest gift cards for $449 [linked]. You can save an additional $50 on Southwest flights if you travel often enough or with a big enough group to burn through the gift card credit.
Use the fare calendar links to pull up the fares.
Read More Nonstop Flights: Dallas to/from New York $108-$132 r/t [August-November] – Southwest