United CEO Scott Kirby indicated in April that rates could have to go up 15% to 20% to cover a hike in aircraft fuel costs, Reuters reported. United has previously implemented many fare hikes, and the firm stated it has not observed a harm on demand at this stage.

Anyone who travels with Delta can benefit from having a Delta co-branded airline credit card, but Delta cards aren't the only way to earn Delta SkyMiles or access useful travel perks like lounge access.

Delta Air Lines could grab an even bigger piece of prime real estate at the world’s busiest airport through the bankruptcy of a low-cost rival. Delta has bid for and appears to be the likely winner for control of two gates,

Delta Air Lines has confirmed changes to over 30 different European destinations.