Fare Guide

Estimated lowest fares found within 7 days

Cheapest Airline American Airlines

The cheapest airline(s) flying from Saint Louis to Chicago is American Airlines.

  • American Airlines American Airlines
  • United Airlines United Airlines
  • Delta Air Lines Delta Air Lines
  • Frontier Airlines Frontier Airlines
  • Spirit Airlines Spirit Airlines
  • Alaska Airlines Alaska Airlines
Cheapest Month August

Travel Period: July 2024 - June 2025

The cheapest month(s) to fly from Saint Louis to Chicago is August.

  • Jul 2024
  • Aug 2024
  • Sep 2024
  • Oct 2024
  • Nov 2024
  • Dec 2024
  • Jan 2025
  • Feb 2025
  • Mar 2025
  • Apr 2025
  • May 2025
  • Jun 2025
Cheapest Day of the Week Tuesday

The cheapest day(s) of the week to fly from Saint Louis to Chicago is Tuesday.

  • Sun Sunday
  • Mon Monday
  • Tue Tuesday
  • Wed Wednesday
  • Thu Thursday
  • Fri Friday
  • Sat Saturday
Cheapest Time 4pm

The cheapest time of the day to fly from Saint Louis to Chicago is in the afternoon.

Early Morning 12:01am - 06:00am
Morning 6:01am - 12:00pm
Afternoon 12:01pm - 6:00pm
Evening 6:01pm to 12:00am
12am
6am
12pm
6pm

Flight Schedules

Last Updated: Sun, 2 Jun, 2024

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  • Availability
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  • 06:26 - 07:45
    STL - ORD
  • 06:26 (STL)St Louis Lambert Intl Airport
  • 07:45 (ORD)Chicago O'Hare International Airport
  • American Airlines (AA 3354)Embraer Emb 175
  • 1h 19m
  • Direct
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  • Embraer Emb 175
  • 06:45 - 08:05
    STL - ORD
  • 06:45 (STL)St Louis Lambert Intl Airport
  • 08:05 (ORD)Chicago O'Hare International Airport
  • United Airlines (UA 4428)Canadair Regional Jet 550
  • 1h 20m
  • Direct
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  • Canadair Regional Jet 550
  • 08:00 - 09:22
    STL - ORD
  • 08:00 (STL)St Louis Lambert Intl Airport
  • 09:22 (ORD)Chicago O'Hare International Airport
  • United Airlines (UA 4183)Canadair Regional Jet 550
  • 1h 22m
  • Direct
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  • Canadair Regional Jet 550
  • 09:56 - 11:15
    STL - ORD
  • 09:56 (STL)St Louis Lambert Intl Airport
  • 11:15 (ORD)Chicago O'Hare International Airport
  • American Airlines (AA 3564)Embraer Emb 175
  • 1h 19m
  • Direct
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  • Embraer Emb 175
  • 10:30 - 11:58
    STL - ORD
  • 10:30 (STL)St Louis Lambert Intl Airport
  • 11:58 (ORD)Chicago O'Hare International Airport
  • United Airlines (UA 4426)Canadair Regional Jet 550
  • 1h 28m
  • Direct
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  • Canadair Regional Jet 550
  • 11:45 - 13:12
    STL - ORD
  • 11:45 (STL)St Louis Lambert Intl Airport
  • 13:12 (ORD)Chicago O'Hare International Airport
  • United Airlines (UA 4383)Canadair Regional Jet 550
  • 1h 27m
  • Direct
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  • Canadair Regional Jet 550
  • 13:06 - 14:25
    STL - ORD
  • 13:06 (STL)St Louis Lambert Intl Airport
  • 14:25 (ORD)Chicago O'Hare International Airport
  • American Airlines (AA 3764)Embraer Emb 175
  • 1h 19m
  • Direct
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  • Embraer Emb 175
  • 13:27 - 14:55
    STL - ORD
  • 13:27 (STL)St Louis Lambert Intl Airport
  • 14:55 (ORD)Chicago O'Hare International Airport
  • United Airlines (UA 3611)Embraer 175
  • 1h 28m
  • Direct
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  • Embraer 175
  • 15:15 - 16:43
    STL - ORD
  • 15:15 (STL)St Louis Lambert Intl Airport
  • 16:43 (ORD)Chicago O'Hare International Airport
  • United Airlines (UA 3568)Embraer 175
  • 1h 28m
  • Direct
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  • Embraer 175
  • 17:18 - 18:34
    STL - ORD
  • 17:18 (STL)St Louis Lambert Intl Airport
  • 18:34 (ORD)Chicago O'Hare International Airport
  • United Airlines (UA 2144)Airbus
  • 1h 16m
  • Direct
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  • Airbus
  • 18:26 - 19:45
    STL - ORD
  • 18:26 (STL)St Louis Lambert Intl Airport
  • 19:45 (ORD)Chicago O'Hare International Airport
  • American Airlines (AA 4090)Embraer Emb 175
  • 1h 19m
  • Direct
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  • Embraer Emb 175
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What’s the fastest flight time from Saint Louis to Chicago?

The fastest flight time for direct flights from Saint Louis to Chicago is 1 hour 16 minutes. Check latest flight schedules & prices on Wego.

How far is Chicago from Saint Louis?

The flight distance between Saint Louis and Chicago is 422km. Check all available flights on Wego.

When is the earliest and latest flight of the day?

The earliest flight of the day departs at 06:26. The last flight of the day departs at 06:26. See the full list of flight times on Wego.

How many airlines offer direct flights from Saint Louis to Chicago?

There are 2 airlines that offer direct flights from Saint Louis to Chicago. Find out the list of airlines on Wego.