Direct STL to ORD Flights: Quick Connections and Best Fares
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$75.4
Last updated Feb 16, 2026
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Tracking the Apr 2, 2026 departure — the cheapest date we found.
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St. Louis (STL)
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Chicago (ORD)
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Search FlightsTraveling from St. Louis Lambert International Airport (STL) to Chicago O'Hare International Airport (ORD) is one of the most popular short-haul routes in the American Midwest, connecting two major economic and cultural powerhouses. Whether you are heading to the Windy City for a critical corporate meeting at the Willis Tower or planning a weekend getaway to explore the Magnificent Mile and Navy Pier, these flights offer unparalleled convenience. This air corridor is heavily served by major legacy carriers, ensuring that passengers have a wide variety of departure times to choose from throughout the day. With a flight time typically clocking in at just over an hour, it remains the most efficient way to bypass the heavy traffic often found on Interstate 55 and get straight to the heart of Chicago.
Travel Tips
For the smoothest experience when flying from St. Louis to Chicago, we recommend checking into your flight via your airline's mobile app to receive real-time updates on gate changes, which are common at a busy hub like O'Hare. If you are looking to save money, try to book your tickets on a Tuesday or Wednesday, as mid-week flights often feature significantly lower fares than those scheduled for Monday mornings or Friday afternoons when business demand peaks. Once you arrive at ORD, the most efficient way to reach the downtown Loop area is by taking the CTA Blue Line 'L' train, which avoids the unpredictable traffic on the Kennedy Expressway. Additionally, for those traveling with only carry-on luggage, Lambert International Airport in St. Louis offers expedited security lines that can save you significant time during the early morning rush.
Airport Information
St. Louis (STL)
St. Louis Lambert International Airport (STL) is the largest and busiest airport in Missouri, located approximately 15 miles northwest of downtown St. Louis. It features two main terminals and is known for its historic arched architecture designed by Minoru Yamasaki. Travelers can enjoy local dining options like Schlafly Beer and the Pasta House while waiting for their departure, and the airport is easily accessible via the MetroLink light rail system.
Chicago (ORD)
Chicago O'Hare International Airport (ORD) is a massive global aviation hub located on the northwest side of Chicago. As a primary hub for both United and American Airlines, it offers four terminals and an extensive range of amenities including a multi-faith chapel, a yoga room, and the famous 'Sky's the Limit' neon light installation in Terminal 1. It is consistently ranked among the world's most connected airports, providing easy access to the city via rail, bus, and taxi.
Seasonal Pricing Patterns
The STL to ORD route experiences its highest fare prices during the summer months and around major holidays like Thanksgiving and Christmas when leisure travel demand is at its peak. Conversely, you will typically find the cheapest tickets during the late winter months of January and February, excluding major event weekends. Keep an eye on the Chicago sports and convention calendar, as large events like Lollapalooza or major trade shows at McCormick Place can drive up hotel and flight prices unexpectedly.
Frequently Asked Questions
How long is the actual flight time from STL to ORD?
While the scheduled block time is usually around 1 hour and 15 minutes, the actual time spent in the air is typically between 45 and 55 minutes.
Which airlines offer non-stop flights between St. Louis and Chicago O'Hare?
United Airlines and American Airlines are the primary carriers offering frequent daily non-stop service between these two airports.
Is there a train from O'Hare to the city center?
Yes, the CTA Blue Line provides 24/7 rail service from the O'Hare station directly to downtown Chicago, taking about 45 minutes.
What is the best time to arrive at STL for this flight?
It is recommended to arrive at least 90 minutes before your scheduled departure to ensure you have enough time for security and boarding.
Are there other airports in Chicago I can fly to from St. Louis?
Yes, Southwest Airlines offers direct flights from STL to Chicago Midway International Airport (MDW), which is located closer to the south side of the city.