Two years ago, when he was vying for the Republican nomination for president he flew on a campaign plane with a staff of aides. Now he walks through the airport rolling his own suitcase, fumbling for his ticket like any other passenger.
"It's just the way normal life is," Romney said.
You might call it the new normal. This year, Romney will have traveled to 25 states in two months, flying coach by the way, despite his fortune of several hundred million dollars.
When asked about his choice to fly coach, Romney said he didn't see a reason to fly first class "unless you are going a long distance or there is a real reason for it, like if I have [my wife] Anne with me."
Romney has flown coach since his days as a young employee at Bain Consulting; it was part of the corporate culture there. The retired corporate titan will accept a free upgrade if he qualifies.
For this trip, it's just Romney by himself, and he's on a mission. Romney said that he is working for a historic victory by the Republican Party.
"There are a lot of races that are very, very close and, you know, I think we peaked very early in this season," Romney said. "I want to make sure that the energy that you saw in September continues to November.
"My hope is to bring a little local media to the campaign, to raise some money, for folks that perhaps haven't given money yet and just to bring a little more enthusiasm and say thank-you to the volunteers that make the calls and get people out to vote," Romney said.
Romney doesn't stop campaigning, even when resting in the airport lounge.
"You are going to vote for John McCain I hope," he tells one potential voter.
He stays on message, even at a McDonald's in Illinois.
"Mark Kirk, I need his help," he told a woman.
Even the air train provides a moment to help his fellow Republicans. Bracing himself on a pole as the train speeds to the next airport terminal, he talks to a couple on their way to California.
"I hope you will vote for my friend Meg Whitman when you are out there -- think about it," Romney told them.
There is no question Romney wants to help elect Republicans this year.
"Some were thinking the GOP was an endangered species, and look where we are right now," Romney said. "Now we are wondering how big will our victory be?"
A visit from Romney helps raise money and generate press coverage, but there is, no doubt, more to this. When ABC News asked Romney what he gets out of those thousands of miles of campaigning, his response is "good friends."