How would you get out of a work trip in over a months time with everything booked by employer

Have an out of state work trip soon and didn’t have the balls to say no at the time to employer therefore accommodation and travel has been booked for me. Really don’t want to go and I’m in the final recruitment stages for new jobs so will leave the second I possibly get an offer. Any help appreciated, ik I shouldn’t of said yes first but was easier said then done