https://www.rallypoint.com/answers/what-pet-carriers-fit-under-the-seat-on-patriot-express <div class="images-v2-count-0"></div>They have to be 8.5 inches tall maximum, leak proof, abs soft sided. I have not been able to find any that fit. Thu, 05 Apr 2018 13:18:58 -0400 https://www.rallypoint.com/answers/what-pet-carriers-fit-under-the-seat-on-patriot-express <div class="images-v2-count-0"></div>They have to be 8.5 inches tall maximum, leak proof, abs soft sided. I have not been able to find any that fit. CPT Private RallyPoint Member Thu, 05 Apr 2018 13:18:58 -0400 2018-04-05T13:18:58-04:00 https://www.rallypoint.com/answers/what-pet-carriers-fit-under-the-seat-on-patriot-express?n=3515038&urlhash=3515038 <div class="images-v2-count-0"></div>I was traveling with my cat one time and TSA made me take my cat OUT of the carrier so they could put it through the xray and I had to try to carry the damn cat through the line in Atlanta with all that noise and hundreds of people around. It was a good time. I think I might still have holes in me from his claws. SSG Private RallyPoint Member Thu, 05 Apr 2018 13:37:29 -0400 2018-04-05T13:37:29-04:00 2018-04-05T13:18:58-04:00