Looking for any feedback on how difficult the commute will be between IAH and IAD (DCA as backup). It looks like UAL has around 4/5 R/T to IAD daily on NBs and about 5/6 daily to DCA on a mix of NBs and RJs.

Are most pilots making this commute finding it hard to find a seat in the back on United flights and having to use the JS or another carrier? Will only do it for about a year... so Any info or opinions appreciated.