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Friday may be for the 45th man in the White House. But Saturday is for the women.

The Women's March on Washington, which begins at 10 a.m. on Saturday, is gearing up to be a huge protest, with hundreds of thousands of people expected in the capital and sister marches taking place in all 50 states as well as in cities around the world.

Today, those women are on the move.

Surprised, delighted, and inspired Twitter users have been posting photos of D.C.-bound planes almost entirely filled with female passengers. In the photos, many women wear bright pink hats, some are dressed in protest Ts, and most are sporting big, eager smiles. One Southwest flight even turned the cabin lights pink in honor of the march. Here is just a sampling of all the planes packed with women. Lauren Hansen