Where is the airline that takes the shuttle train from Incheon?

pu1. If you get 100 gates, you'll get on the shuttle train

2017-10-21

OK

pu2. It's not fixed... It depends on where the gate is assigned

2017-10-21

OK

pu3. I don't know, but I think I get on a budget flight like Peach Airlines

2017-10-21

OK