British Airways, Finnair, Iberia, American Airlines and various other airlines have round-trip flights from Houston (IAH) to Paris (CDG) for $622-$628 with a connection. Flights April, May, August, September, October, and November. Departures on Monday, Tuesday, Wednesday, and Sunday. 7-day minimum stay required. No Thanksgiving dates.
A Carry-on bag and also a personal item is allowed for free on American. You can avoid paying for seat selection by accepting the randomly assigned seat at the gate.