JetBlue has round-trip flights from Dallas (DFW) to Boston (BOS) for $160, NONSTOP. Flights January 9th to March 28. Promo is for Nonstop flights only, connecting flights aren’t eligible. Use code: “NEWYEAR”. Cheapest departures are on Monday, Tuesday, Wednesday, Thursday, and Saturday. Extended weekends available. Origin/Destination reversible.
This deal makes use of a -$50 off promo (minimum spend, $100) for NONSTOP flights.
Booking and More details are on the JetBlue Promotional Page.