I just bought some tickets xICN

KRW 5692500
YQ 557200
US 90400
XT 254700
KRW 6594800

What are the taxes on this ticket? What are the rest of the numbers?

Are these taxes unusually high or low?

Thanks!

YQ is fuel surcharges. Varies depending on the airline you ticket with and your itinerary.
US & XT are your real taxes. Hard to comment without a routing. Could be right, or low, or high. In the past 6 months my taxes on RTW bookings have varied from about USD200 to well over USD1000.

With the on-line booking tool you can click on the "taxes" line in the fare summary and bring up a complete listing of the relevant taxes and surcharges. This is a tremendous improvement over the past.

I've tried a couple of dummy DONE4 bookings online using the same overall itinerary but with different start points (e.g. ICN-NRT-JFK-LHR-JNB-HKG-ICN and JFK-LHR-JNB-HKG-ICN-NRT-JFK) and have found there to be some variance in overall taxes and fees (+/- 20%) even after currency adjustments. In other words, trips originating with ICN-NRT and ticketed by QF on behalf of JL, have taxes up to 20% different from those starting with JFK-LHR and issued by AA. Note this is 20% variance in the amount of taxes, not 20% of the base fare, so e.g. one itinerary after currency adjustments comes in at, say, USD500 for taxes and fees, while another comes in at USD400. I think some synchronizing by OW is going to be needed in this regard.

Putting your ticket number - PNR in LAN e-ticket sometimes bring up a list of these charges and what they mean.

Below are two links for PDF's on the Qantas agents' site re Country taxes. They are nearly a year old but they should give a guide: