The big airlines have this dirty little secret. Oh, it might be in very fine print somewhere, but who reads all the fine print? If you have a several connections/flights, and you miss the first connection, they will cancel all your other flights, even though you've paid for them in full and could still catch them. Almost immediate cancelations with no refund nor partial refund.
My wife and I were to fly to Osaka, Japan. We missed the first flight, it was no big deal, we could just book another flight for cheap to get to Osaka, and then catch the connecting flight there, 3 days later. On the phone with AA, I told them NOT to cancel our other flights as we would be there. Their so called customer service gal, was very rude and arrogant. She said, 'buddy, you sure made a big big mistake there.' She was in Texas at their headquarters. I said goodbye and called my booking company, CheapOAir to see if they could help me. The sure tried. They called AA and tried to save all my other flights while trying to book me a cheap flight to Osaka. CheapOAir then called me back 30 mins later and told me AA had canceled all my connecting flights. Evidently their customer service gal, as soon as we'd hung up, she immediately cancelled my flight. This way they can sell my seats and make double on them.
They were my seats; I had paid for them and could still use them. Didn't matter to American Airlines. They just screwed me royally. I was out $1400 to get back to the USA. I'll never fly them again and if you have a choice, you'll want to do the same.
We DID make the flight over there with them and they had all American stewardesses - which are quite rude and arrogant and sloppy. One must have weighed in at 300 lbs and would walk down the aisle, not trying to avoid bumping customers, as she would pound into you every time. Another skipped serving my wife and as she walked on by, I quickly touched her arm to get her attention. She turned and snapped at me, "don't touch me!!"
Attendants in China and Korea are so, so much nicer, more polite and attentive.