Cheap flights from Chicago to Saint Louis
From 166 USD — compare hundreds of airlines
Vuelos directosMás barato: 2026-07 · 181 US$
Precios por fecha
181 US$
07-11
Aerolíneas en esta ruta
American AirlinesAlaska AirlinesEtihad AirwaysUnited AirlinesSilk AviaSouthwest Airlines
Preguntas frecuentes
What's the cheapest month to fly Chicago to Saint Louis?
Usually 2026-07, from 181 USD.
Are there direct flights from Chicago to Saint Louis?
We show both direct and connecting options — filter to compare.