So I am going to be traveling with a suit soon. Is it still OK to bring a suit (in one of those bags) on board a plane?
Will you be doing a lot of "suit travel"? If so, invest in a suit that is good for travel. I am thinking of a fabric that is made of 'high twist' threads (tightly wound) that are woven together in a looser fabric. These can be both hard-wearing, and resiliant to creases.
Whether you wear the suit for travel or put it in a garment bag, creases are likely.
By 'one of those bags' I assume that you mean some sort of garment bag that carries the suit folded in half, and the bag zips together like some sort of suitcase? I see no problem for carry-on if it meets the size restrictions, and for checked luggage the main concern would be to make sure that there's enough other stuff in the bag for padding so the hanger doesn't get broken.
why not read the recent thread about the sorry decline in airport attire, and then wear your suit for travel? Once you arrive, you can have it pressed at any good hotel you stay at, or run the hot water shower and hang the suit in the bathroom and let the steam go to work for 10 minutes or so. (Same advice goes for when you haul the suit out of the suitcase.)
Once you arrive, you can have it pressed at any good hotel you stay at, or run the hot water shower and hang the suit in the bathroom and let the steam go to work for 10 minutes or so. (Same advice goes for when you haul the suit out of the suitcase.)
Many planes don't have hanging closets anymore, or they are reserved for the crew. Expect to have to put it in the overhead.