Thanks for the quick responses. I am traveling with my wife, but the baby doesn't have a seat. So it'll be the two of us with baby in lap (alternating between mine and hers).
Any idea if US Air has bassinet service internationally? That's certainly a more important flight segment since it's longer.
Other stuff to know:
"Lap Children
On domestic flights, one lap child will be accepted without charge when traveling with a paying ticketed passenger age 18 or older. On international flights, lap children may require a paper ticket, may have to pay 10 percent of the published available adult fare and are subject to international taxes and any surcharges. Taxes and surcharges are not discounted." This is standard on international flights.
I have never seen a bassinet on a US flight annd there is no reference on the website; maybe someone else knows the answer.