We have a 5 hour stopover at Barajas Airport, and plan on spending some time at the Prado. Although our larger luggage will be checked through to our final destination, I would prefer not to shlep our small carryons into the city. Does anyone know of storage lockers at the airport? Alternately, I have lounge access for the One World Iberia lounge. Does anyone know if I can keep my bags there? I have never inquired about that while there.
Are you flying back to the U.S. from Madrid, or flying to another European destination?
Keep in mind that you may not actually have "5 hours" at the Madrid Barajas Airport.
it takes time to deplane, (possibly) go through passport control, time to travel to city, and back
Here's the information for Left Luggage at Madrid Barajas Airport
Do give yourselves plenty of time to return to the airport in order to retrieve your luggage, and then go through security.
Enjoy your trip!
Good points, Priscilla. Thanks for your reply.