Five major US airlines are increasing checked bag fees, as jet fuel costs have jumped since the start of the war in Iran.
Key US airlines have issued travel waivers ahead of what's forecast to be a brutal "bomb cyclone" of wintry weather in the Midwest and other regions later this week.
Under federal law, airlines that cancel flights are required to give cash payouts to customers if they decide not to travel, experts say.
The DOT is also issuing $7.25 million in fines against six airlines for the "extreme delays in providing those refunds to passengers," Transportation Secretary Pete Buttigieg said on a call with reporters.
Travel is booming, and Delta Air Lines boosted ticket prices. That helped the company weather higher fuel costs in the first quarter, and Delta believes it can turn a profit in the second quarter.
Over the weekend, United Airlines announced it will be dropping its change fees for good, putting pressure on other major airlines.