What’s the price of flying from Chicago O'Hare to Saint Louis?

It depends. Prices for flights from Chicago to Saint Louis fluctuate based on several factors.

The lowest fare seen in the past 15 days was $39.

Checking flights with stopovers can sometimes lead to big savings, especially on longer routes. Also, airfare often depends on availability — it’s wise to track price changes regularly.

Which airports are most convenient between Chicago and Saint Louis?

Whether it’s cost or connection time, the right airport combination can make a difference.

• Airports in Chicago: There are 3 airports in Chicago - Midway, O'Hare, Rockford.
• Airports in Saint Louis: Saint Louis - Lambert is the only functioning airport for now.

In some cases, flying into a secondary airport can also reduce transfer costs. Connections from multiple airports give you more flight options and airlines.

Adjust your flight filters for Chicago O'Hare – Saint Louis

Jetcost gives you tools to search smarter. Pick your ideal price range, airline, departure time, and flight type — then compare offers from agencies like Expedia, eDreams, and more.

Other popular destinations

Planning a trip to United States? These cities are popular too: Atlanta, Los Angeles, Miami, New York City, Orlando.

Sorting options let you see the most affordable flights first. Some results may include extra fees shown only at checkout — always read carefully to see what’s included.