U.S. Transportation Secretary Sean Duffy and and the CEOs of United and Delta see room for more airline consolidation.

JetBlue is hiking its baggage fees to counter higher fuel costs sparked by the Iran war – potentially a taste of things to come from major US airlines as the cost of oil soars above $100 a barrel.

Delta Air Lines became the latest major carrier to announce increases, but the move follows similar changes by others.

Airfare has climbed for routes around the world, driven by higher fuel prices since the U.S. and Israel attacked Iran.