In 2022, 298 guns were found in travelers' carry-on luggage at Bush Intercontinental Airport.
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At Hobby Airport, there were 125, totaling 423 confiscated guns at both Houston airports last year.
In 2021, 245 were found at Bush and 80 at Hobby.
RELATED: TSA finds a loaded 9mm gun at Bush Intercontinental Airport in a carry-on bag
Loaded gun found in TSA check at IAH
Overall, TSA said officers found 6,542 firearms at 262 airports across the country, with 88% reportedly loaded.
The five airports with the most guns found are Hartsfield-Jackson in Atlanta, Dallas-Fort Worth International Airport, Bush, Nashville, and Phoenix Sky Harbor.
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Bush had the third-greatest number of guns found nationwide.
SEE ALSO: TSA finds apparent anti-tank weapon in checked luggage at San Antonio International Airport
According to TSA, every gun found was discovered during the X-ray screening routine of carry-on property at security checkpoints.
Travelers who bring guns to TSA checkpoints could face up to a $15,000 fine.
You can visit the TSA website to check what you can pack in your carry-on and checked baggage.