I travel a lot...as in 35,000 miles for the first six weeks of the year..
For the short, carry on only trips, I use the Storsven solution. Bring a travel Boar brush and a stick of Tabac but use a Cart (Mach 3). I find that with the Wet shaving habits, a good soap and stretching I can hang on to as many parts of Wet/Straight shaving as I can.
Checking a bag? - I have dropped my old system (2-3 razors, travel strop) in favor of either the Feather SS (fixed or folding) or a CJB clone of the Feather and 1-2 spare blades.
The Kit is smaller
If it gets lost or stolen it can be replaced with the exact same thing.
A pack of 20 blades (or 3 in the holder) takes up the same room as a pack of chewing gum - less if you tape a blade to a card.
Maintenance (pre and post shave) is minimal.
A perfect new edge is only seconds away...
Once you find the "Holder" (DX, RG, SS, Kai, CJB, Fixed, Folding) and blade (Feather Pro, Super, Guard, Light - Kai Mild, Mild Guard or Dorco to name the bigs) this is a great system. (Give it a week)
And if my travel has me going to the same place for short (carry on) trips I leave a Feather/Clone/Blades on site in a safe & secure spot.
This works so well that I often use the Feather SS for a work-day shave, great results in short order.
And I have to admit that I resisted trying the Feather because of the "slash and gash" rep that it had.
This was a mistake on my part. IMHO the SS is a good system even for starters (Pro Guard Blade) and anyone who is comfortable with a SR could master the light touch required in short order.
And of course...YMMV...