"ticket" translates to, "billete" in Spanish. Another way to say it is "boleto".
One-way means a ticket to your destination, but without a return ticket. It will get you to, say, Phoenix, but if you wish to come back from Phoenix, you'll need to purchase another ticket, in contrast to a round-trip ticket, which provides for flight to and then back from a destination.
taquilla
el viaje
¡Buen viaje! (Have a nice trip!)
buen viaje
Hin-und Rückfahrt
Mi viaje a España
su viaje a España
mi viaje a Michigan
yo mamma that's it
Tenga un buen viaje de regreso is have a safe trip home in spanish.