Airline choice flying into Jackson Hole airport?

My family and I (4 adults, 1 teen) are planning our first trip from Pennsylvania to Jackon/Grand Tetons/Yellowstone this June. We are flying, probably out of the Baltimore airport.

Normally, we fly Southwest, but we want to fly into Jackson Hole and that isn't an option with them. I'm not too familiar with other airlines anymore.

Our other options are American, United, and Delta.

We don't need an upscale flight or anything. The costs are pretty comparable, but right now American is our best deal, followed closely by United. Delta, though possible, gives a return flight time we think would be too brutal to manage.

So between American and United, for low-to-mid tier seats....is there really much of a difference? We are all short, so we don't need the extra legroom. I usually just book the level that allows at least an airfare refund that can be used within a year, just in case anything does cause us to cancel/reschedule.

I tend to overthink things like this, but right now it's almost a flip of a coin.

I don't know if it helps in term of flight delays - we will be flying out and back starting pretty early in the morning for both directions.

Thanks!