请在美国国内飞行的问题我订了三程联程飞行,行程如下: Washington (DCA) to Newark (EWR)12/25/11 2 PM - 4 PM UNITED 4908 Operated By: COLGAN AIR DBA CO CONNECTION Newark (EWR) to San Francisco (SFO)12/25/11 6 PM - 10 PM UNITED 921 San Francisco (SFO) to Ontario (ONT)12/25/1110 PM - 11 PM UNITED 5348 Operate...