Thank you for that table. My ticket seems to say something else for the bit on IcelandAir (DEN-BOS is JetBlue):
Denver - Boston
2
Carry-on Bag
Carry-on Bag, 2 Included
First bag SMALL PERSONAL ITEM OR CARRY ON UP TO 45 LI 22X14X9
Most Significant Carrier is B6 (JetBlue Airways)
Second bag
Most Significant Carrier is B6 (JetBlue Airways)
Boston - Reykjavik
1
Carry-on Bag
Carry-on Bag, 1 Included
CARRY10KG 22LBUPTO 45LI 115LCM
Most Significant Carrier is FI (Icelandair)