。
When I travel, I prefer flying.
Literal
Travel do time [topic-は] I [topic-は] airplane [possessive-の] direction [object-を] prefer.
~の方を好む (to prefer X) uses 方 (direction/side) to indicate a preference between options. 好む is more formal than 好き — it's a verb rather than an adjective. The final 好みます uses the polite ます form. 飛行機 (airplane) is standard vocabulary.