以下两种都是正确的：
they returned to the airport with minutes to spare
they returned to the airport with minutes left
但是用to leave是错误的,一般用leave的过去分词(left)搭配时间表示还剩下多少时间.
they returned to the airport with minutes to leave（wrong)
Hurry up! There isn't too much time left! (correct)
赶紧!我们没有时间了!