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Cheapest time to fly from Chicago to St Louis, MO

If you’re planning to fly this route soon, keep in mind that the lowest fares are usually available at the beginning of December. Take advantage of this period to save on your flight tickets and make the most of your trip. Please note that prices may change after your search.

Filter by

week: Dec 7 - Dec 13

Flights from just €84

€192

€182

€84

NovemberDecember

Distance: 413 km

Chicago airports

O'hare International Airport (ORD)How far from city centre: 22 km

St Louis, MO airports

Book your flight from Chicago to St Louis, MO

Find direct and indirect flights from Chicago to St Louis, MO (United States) with eDreams. Once you have your results, sort them by schedule or price and book the option that best suits your plans.

The lowest fare booked on this route in recent days was €53, though the price you see will depend on your travel dates and departure times.

A direct flight from Chicago to St Louis, MO takes around 1 h and 39 m, while indirect flights will take longer.

Airports and airlines connecting Chicago and St Louis, MO

Knowing where you set off from and where you arrive helps you organise your journey better. Consider the available airports and compare the different airlines operating on this route.

Departure airport: O'hare International Airport (ORD)

Weather in St Louis, MO

The best time to visit may depend on your preferred climate. In St Louis, MO, the average temperature floats around 31ºC in the warmest months and -3ºC in the coldest ones. Keep this in mind when packing and planning any outdoor activities.

Highs: up to 32ºC
Lows: down to -5ºC
Hottest month: July
Coldest month: January
Driest month: February
Wettest month: May

How to save when flying from Chicago to St Louis, MO

A few tips for finding cheaper flights from Chicago to St Louis, MO:

Flexible dates: compare fares for two or three different departure days. Leaving a day earlier or later can make a noticeable difference to the price.
Baggage allowance: check what each fare includes before you book, so you aren't caught out by extra charges at the airport.
Airports on your route: confirm which airports you depart from and land at, especially if the city has more than one. This will help you plan your transfer and work out the total cost of getting around.

Looking for a bigger saving? Book a Flight + Hotel package to combine both in one booking and unlock exclusive discounts on your stay in St Louis, MO. You can also save on a hire car by including it with your booking.

Frequently asked questions about flights from Chicago to St Louis, MO

On average, what is the price of a Chicago to St Louis, MO flight?

When flying from Chicago to St Louis, MO the average price will be €175. However, this price is dependant on several other factors like seasonality or the time in advance taken when booking the route.

For flights from Chicago to St Louis, MO, how can I find the cheapest price?

On eDreams we use machine learning to find the most economical flight between Chicago and St Louis, MO. By taking into account the combinations of airlines, stopovers, direct flights as well as the various criteria for the journeys, our search engine allows us to offer our customers the best price under the best conditions.

When booking, when is the best time to do so in order to get the best prices for Chicago to St Louis, MO flights?

The most popular month for flights from Chicago to St Louis, MO are: July, February and June.

When is the best time to travel from Chicago to St Louis, MO?

A good period of the year to visit St Louis, MO from Chicago really depends on lots of personal preferences, price being one of the main criteria When it comes to popularity, June is the best month to fly to St Louis, MO from Chicago, basedd on searches from our customers, followed by October and January. If you prefer to avoid the busy season and get away from the crowds May, February and April are the months with fewer searches for the route Chicago - St Louis, MO.

What is the duration of a flight from Chicago to St Louis, MO?

Flight time, on average, from Chicago to St Louis, MO is usually 1 h and 23 m on average, at an average distance of 413.4 km, for flights for the route (which may have 1 or more stops in other cities in between).

What is the weather like in St Louis, MO compared to Chicago?

The average temperature in Chicago is 22º degrees in summer. St Louis, MO reaches 26º during the hot season. In winter, however, temperatures are around 1º degrees in St Louis, MO, compared to the -3º average degrees in Chicago.

What airlines fly from Chicago to St Louis, MO?

Airlines that have direct flight routes from Chicago to St Louis, MO are:

American Airlines.

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