Are you a MAC user? If so you can try to leverage iCloud/Photostream. Once you import to your ipad from your camera, it will then upload the files to your iCloud via Photostream then download to your MAC at home. 2 requirements for that.... Wifi Access & Your home MAC needs to be on and the photo app. Not sure how this would work with Windows..
I use my ipad for all my editing so this solution works great for me cause i never have to worry about syncing or backing up to my macbookpro at home. But again I am usually in a place that has wifi...
I am sure there are hotels you can just borrow
the wifi from to transfer your pics.
I have also seen stand alone hard drives that have SD card readers and you can dump your pics onto the hard drive. So maybe import first to the ipad, review and edit and then also upload to the hard drive as a backup. Something like this -
Portable Data Storage | B&H Photo Video
Anyhow.. safe travels!