JetBlue's one-day Boston sale doesn't mean it's only available for people who live in the Boston area. It's a great way for those to visit the Massachusetts capital for cheap too. You probably won't see much snow in Texas this winter, so if you want a nice snippet of snowy weather why not fly up from Dallas-DFW to Boston for $157 roundtrip.
This fare follows the same rules as the listed sale. Flights are available on Tuesdays and Wednesdays from January 15 through March 27, 2019. Tickets must be purchased by midnight tonight January 7, 2019, so get a move on.
As an example below, I found seats departing DFW on Wednesday, February 20 and returning from BOS on Tuesday, February 26, 2019.
Looking for a place to stay close to all the action? Hotelwatchdog has a long list of available accommodation for the mentioned dates for you to choose from.