http://releases.ubuntu.com/19.04/
Download Ubuntu 19.04
Images can be downloaded from a location near you.
You can download ISOs and flashable images from:
http://releases.ubuntu.com/19.04/ (Ubuntu Desktop and Server)
http://cdimage.ubuntu.com/ubuntu/releases/19.04/release/ (Less Popular Ubuntu Images)
http://cloud-images.ubuntu.com/daily/server/disco/current/ (Ubuntu Cloud Images)
http://cdimage.ubuntu.com/netboot/19.04/ (Ubuntu Netboot)
http://cdimage.ubuntu.com/kubuntu/releases/19.04/release/ (Kubuntu)
http://cdimage.ubuntu.com/lubuntu/releases/19.04/release/ (Lubuntu)
http://cdimage.ubuntu.com/ubuntu-budgie/releases/19.04/release/ (Ubuntu Budgie)
http://cdimage.ubuntu.com/ubuntukylin/releases/19.04/release/ (Ubuntu Kylin)
http://cdimage.ubuntu.com/ubuntu-mate/releases/19.04/release/ (Ubuntu MATE)
http://cdimage.ubuntu.com/ubuntustudio/releases/19.04/release/ (Ubuntu Studio)
http://cdimage.ubuntu.com/xubuntu/releases/19.04/release/ (Xubuntu)