Denshi Jisho — Online Japanese dictionary

片道 かたみち one-way (trip)
Common word, Noun, No-adjective 
片道切符 かたみちきっぷ one-way ticket
Noun 
片道料金 かたみちりょうきん one-way fare
Noun 
片道航空券 かたみちこうくうけん one-way airline ticket; one-way plane ticket
Noun 

You can also

Look up kanji details for 片道.

Try a Yahoo Jisho search for 片道 .
Try a Goo Jisho search for 片道 .
Try a Google search for 片道 .