So here's a thing about the airline business: it's expensive to fly planes, especially when jet fuel costs keep climbing. And when things get expensive, companies start thinking about getting together to save money. That's where Transportation Secretary Sean Duffy comes in—he's basically the guy who gets to say whether airlines can merge or not. And in a recent interview, he gave a pretty clear signal: the Trump administration might be open to it.

Duffy was talking to CNBC on Tuesday when someone asked him what the administration thinks about possible airline mergers. His answer was classic bureaucratic hedging, but with a twist. "That's going to come through us [Department of Transportation], but also President Trump," Duffy said. Then he added the kicker: Trump "loves to see big deals happen."

Think about that for a second. The Transportation Secretary is basically saying the president is a fan of big, splashy corporate marriages. It's not a green light—Duffy was careful to say he's "not gonna pre-commit to anything" and that any deal would need to be reviewed for how it affects competition and what it means for your ticket prices. But he also said there's "room for some mergers in the aviation industry" in the U.S., and that there's already "a lot of chatter" about it.

Oh, and if airlines do try to merge, they might have to "peel off some of their larger assets." That's regulator-speak for "sell some stuff so you don't get too big." It's like if two neighbors combine their yards but have to give up a swimming pool to keep the block from becoming a monopoly on backyard space.

This isn't just theoretical. There's been buzz lately about JetBlue potentially looking for a buyer or a merger partner. Reports say the airline has been talking to advisers and testing the waters with regulators about how a deal with someone like United, Alaska Air, or Southwest might go over. You know, the usual "what if we held hands and shared a frequent flier program" conversations that happen when antitrust lawyers are in the room.

But Duffy wasn't just talking mergers. He also chatted about the Federal Aviation Administration, which is the agency that makes sure planes don't bump into each other. Apparently, they're trying to hire over 2,300 new air traffic controllers. Why? Because last year's government shutdown left them short-staffed, and having enough people to guide planes is kind of important.

Then there's the equipment. Duffy mentioned the need for modernized air traffic control gear, partly in response to a recent Air Canada crash at New York's LaGuardia Airport. The Department of Transportation wants an extra $19 billion on top of an already-approved $12.5 billion package to upgrade the system. That's a lot of money, but then again, so is rebuilding an airport after a crash.

So to sum up: The guy in charge of transportation says the president likes big deals, airlines might be thinking about merging, the FAA is hiring, and everyone wants newer gadgets to keep planes safe. It's a busy time in the skies.