Meanwhile back here in the states:

U.S. Excise Tax (aka U.S. Domestic Transportation Tax; U.S. Ticket Tax)
Percentage of fare; applies to flights within the continental United States or Canada/Mexico 225-mile buffer zones
U.S. Domestic & International
US
7.5%
Travel Facilities Tax
(aka Alaska/Hawaii Ticket Tax)
Applies to certain flight segments to or from Alaska or Hawaii
U.S. Domestic & International
US
$8.40
U.S. Federal Segment Fee
Per-segment inflation-adjusted fee applicable to flights within the continental United States
U.S. Domestic & International
ZP
$3.80
Passenger Facility Charge (PFC)
A maximum of 4 charges per itinerary applies to PFC-approved airports for facilities improvement
U.S. Domestic & International
XF
up to $4.50
September 11th Security Fee (aka U.S. Passenger Civil Aviation Security Fee)
U.S. government-assessed fee of $2.50 per U.S. enplanement per ticketed journey for security costs not to exceed $5.00 one-way or $10.00 round-trip (fees accrue incrementally with multi-segment travel itineraries)
U.S. Domestic & International
AY
$2.50 per U.S. enplanement
U.S. International Transportation (Arrival/Departure) Tax
Applies to all flights arriving in or departing from the United States, Puerto Rico, or the U.S. Virgin Islands
International
US
$16.70
U.S. Animal and Plant Health Inspection Service (APHIS) Fee
Applies to all flights originating abroad and landing in the United States, Puerto Rico, or the U.S. Virgin Islands
International
XA
$5.00
U.S. Immigration and Naturalization Fee
Applies to international arrivals to the United States, Puerto Rico, or the U.S. Virgin Islands