I'm not sure how to do the calculations on distance between the two, but I'd estimate this binary is well under 1,000 light years from Tabby's star given the constellation, RA, declination and distance are all close.
Edit: Added a zero as I'm not sure of the error margines on distance measurements.
Here's Tabby's star: https://en.wikipedia.org/wiki/KIC_8462852
I'm not sure how to do the calculations on distance between the two, but I'd estimate this binary is well under 1,000 light years from Tabby's star given the constellation, RA, declination and distance are all close.
Edit: Added a zero as I'm not sure of the error margines on distance measurements.