Slowing down only to take off her boots to be X-rayed, Linda Summars breezed through security in Oklahoma City and right onto a Southwest Airlines plane headed to Baltimore.
The designer traveling this week from Yukon, Okla., said there was plenty of overhead bin space, which she didn't need because she carried only her laptop.
And her flight?
"They made a quick trip of it," she said. "It arrived early."
It seems there are unintended benefits from new security rules that ban liquids in carry-ons: shorter security lines, faster airplane boarding and, maybe, more on-time flights.
The number of planes pulling up to the gate on schedule at the nation's largest airports, including BWI, has inched up in the week and a half since the rules went into effect. Some aviation experts say that could be because more people are checking their bulky belongings instead of carrying them aboard -- 20 percent to 25 percent more, some airlines report.
They add that on-time arrivals are not necessarily due to less carry-on luggage in the cabin; weather and air traffic also affect arrival times. They also say 12 days is scant time to draw any long-term conclusions. And not everyone is happy to forgo drinks, hair gel and convenience to wait in extra lines to check and collect baggage -- which might be overwhelming airlines and getting lost or beat up along the way.
But, at Baltimore-Washington International Thurgood Marshall Airport this week, a different culture has emerged as a result of changes imposed Aug. 10 after the London terror plot was exposed. And passengers report some of it is kind of nice.
Fewer passengers are gumming up security lines and cabin aisles with roll-on luggage that had become so common that some carriers added extra bin space. The lines in midmornings didn't seem to ever get more than five deep.
Yesterday morning, Jill Dumas took off her flip-flops, dropped her small tan purse on the X-ray conveyor belt and walked through in about two minutes. She, like Summars, had waited in a slightly longer line to check her luggage. Both said they usually carry on their bags.
"I brought hair spray and other things, and I didn't want the drama and the hassle of figuring out what I could carry on," said Dumas, headed on vacation to Los Angeles. "It should be faster because they always want to go through my bag and want me to strip down. That won't happen."
BWI officials say security lines on Aug. 11, the day after the new rules went into effect and a normally busy Friday, averaged eight minutes. The Transportation Security Administration, which is responsible for security, said BWI lines have been virtually unchanged since the new rules. They aim to get passengers through in less than 15 minutes.
The two biggest airlines at BWI say boarding times are mixed. Southwest Airlines, with the industry's fastest airplane turn-around times, said some flights have shaved minutes and others haven't. AirTran Airways said an average of four minutes has been cut from boarding.
Both say that checked baggage is up and that poses an operational challenge at the other end. Judy Graham-Weaver, an AirTran spokeswoman, said the carrier is paying overtime and moving other workers in to help.
"Customers certainly have proven to us they adapt," said David Castelveter, spokesman for the Air Transport Association, the airlines' trade group. "We've not seen the full month, but early on we haven't seen fall-off in the number of people scheduled to fly, and we've seen smooth operations. It's anyone's guess if things will stay this way in the long term."
The airlines always want passengers to board faster. Slow turn-around times mean fewer flights can be scheduled in a day; unexpected delays are costly in worker pay, fuel and lost flights.
Carriers have experimented with a host of new methods of boarding. Some still load passengers back to front, but others load window seats first and aisles last. Some board randomly.
As passengers check more luggage, handlers work additional hours.
In major U.S. airports, guards armed with rifles stood at security checkpoints, and passengers were met by signs warning that all liquids were now banned from carry-on luggage.
Some experts say the numbers bear out the feeling of many travelers that flying has become an ordeal.
The TSA allows small bottles and tubes of liquids to be carried aboard airplanes only if they are enclosed in a quart-size, zip-top plastic bag.