Originally Posted by
plazc
I've figured out how to exclude ET from the United search tool by excluding ADD, so at least that's helpful, if I am correct.
Yes, but it filters out the ADD / ET options
after it caps the search at 200. So if 125 of the initial include ADD, you'll only see 75 options after you filter.
If you aren't already, I strongly recommend you search one-way there and then one-way back rather than the r/t search, as you get many more options.
Your tactic of searching different gateway cities is an excellent one.