One follow up questions for the experts... My first leg is DCA-LGA // JFK-FCO. Will they check my bags in for free with the credit card for the DCA LGA flight? Then I assume, they'll charge me at JFK? The legs are on one ticket. What if I didn't get the card? Would I have to pay for 2 bag fees? Once at DCA and once at JFK? My return is straight through to JFK then to DCA.