How to say "Catch a plane" I'm interested to see if there is a translation for "catch a plane". I know that 赶不上飞机 is an expression - but could you say 

"今天我有很多事。 最要紧的是赶上飞机“
赶飞机 is ok. you can also say 赶火车(train) or 赶车(car/bus) or 赶地铁(subway)

赶上飞机 is also correct, but it's long and a little bit strange in speaking.

you can say 今天我事情很多，还要赶飞机