Sobre la marcha

on the fly; **on the fly**; **on the go**; **as you go**; **along the way**; **without stopping**

Sobre la marcha means on the go, as you go, on the fly or along the way.

It refers to doing, deciding or changing something while the activity is already taking place, without prior preparation.

• improvises a solution
• learns while doing something
• changes plans during an activity
• makes decisions without stopping
• adapts to unexpected circumstances

The expression comes from the literal idea of continuing to move while performing another action.

Instead of stopping to think, organise or prepare, the person acts during the march itself.

Over time, the military and physical image broadened into a general metaphor for improvisation and adaptation.

Spanish speakers often use the expression positively.

It may suggest:

• flexibility,
• practical intelligence,
• adaptability,
• and the ability to react quickly.

Unlike English to wing it, sobre la marcha does not necessarily imply poor preparation.

It often simply means adapting efficiently to changing circumstances.

Spanish has several expressions related to improvisation:

• Sobre la marcha → on the fly.
• Improvisar → to improvise.
• Salir del paso → to manage somehow.
• Resolver sobre la marcha → to solve something as you go.

Among them, sobre la marcha is the most versatile because it can describe planning, learning, solving problems or changing decisions while an activity is already in progress.

Do not translate the expression word for word.

The most natural English equivalents include:

• on the fly
• as we go
• on the go
• along the way

Choose the version that best matches the context.