St. Louis (STL) → Chicago (ORD)

415 km
1h 1m flight
From $100
Chicago destination photo

About St. Louis to Chicago Flights

Discover the best flights from St. Louis to Chicago, covering 415 km in approximately 1h 1m. St. Louis (STL) to Chicago (ORD) is one of the busy short-haul routes within United States. With 4 major airlines operating this route including direct flights, travelers have plenty of options to choose from. Whether you're traveling for business or leisure, our comprehensive guide helps you find the best deals, understand seasonal price variations, and choose the right airline for your journey from St. Louis to Chicago.

12-Month Price History

Flight prices from St. Louis to Chicago vary significantly throughout the year. February typically offers the best deals with average prices around $137, while July sees the highest prices, averaging $229. Savvy travelers can save up to 40% by choosing their travel dates wisely.

Best Time to Fly

Cheapest Month

February

Save up to 40% on average

Most Expensive

July

Peak season pricing

Book in Advance

64 days

For best prices

Booking Tips

For the best prices on St. Louis to Chicago flights, we recommend booking 81 days in advance. Domestic flights typically see price increases as the departure date approaches, so early booking is advisable. Tuesday and Wednesday departures often offer the lowest fares, while Friday and Sunday flights tend to be more expensive due to business and leisure travel demand. Consider flying early morning or late evening for additional savings, as these off-peak times usually have lower demand.

Airlines Serving This Route

SkyWest Airlines

OO

Economy

$200

Business

$860

First

$1340

Kalitta Air

K4

Economy

$220

Business

$840

First

$1080

American Airlines

AA

Economy

$240

Business

$840

First

$1060

United Airlines

UA

Economy

$250

Business

$780

First

$1290

Prices shown are estimates based on historical data. Actual prices may vary based on dates, availability, and current promotions.

Alternative Flight Options

Milwaukee destination photo

St. LouisMilwaukee

St. Louis Lambert International (STL) to Milwaukee Mitchell International (MKE)

Distance: 511 km

Average price: $177

View this route →
Chicago destination photo

St. LouisChicago

St. Louis Lambert International (STL) to Chicago Midway International (MDW)

Distance: 404 km

Average price: $161

View this route →

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Frequently Asked Questions

How long is the flight from St. Louis to Chicago?

The flight time from St. Louis (STL) to Chicago (ORD) is approximately 1 hours and 1 minutes. This duration is for direct flights and may vary depending on aircraft type, weather conditions, and air traffic.

What is the distance between St. Louis and Chicago?

The aerial distance between St. Louis and Chicago is 415 kilometers (258 miles). This is the straight-line distance, which is used to calculate flight times.

Which airlines fly from St. Louis to Chicago?

Several airlines operate flights between St. Louis and Chicago, including American Airlines, United Airlines, SkyWest Airlines and 1 more airlines. Direct flights are available on this route.

What is the cheapest month to fly from St. Louis to Chicago?

Based on historical data, February typically offers the lowest airfares for flights from St. Louis to Chicago. However, prices can vary based on holidays, events, and airline promotions. We recommend checking our price calendar for the most up-to-date information.

How far in advance should I book my flight to Chicago?

For the best prices on St. Louis to Chicago flights, we recommend booking 37 days in advance. Domestic flights can sometimes offer good last-minute deals, but advance booking is usually cheaper.

Do I need a visa to travel from St. Louis to Chicago?

Visa requirements depend on your nationality and the purpose of your visit. Since this is a domestic flight, no visa is required for citizens.

What is the time difference between St. Louis and Chicago?

St. Louis operates on America/Chicago time zone, while Chicago is in the America/Chicago time zone. For current time differences and to plan your schedule, visit our partner site timezig.com for accurate timezone conversions.