- Be in the knowGet alerts if flight prices drop or rise*
- Book smarterSave up to 30% on select hotels after you book a flight*
$59 Cheap United flights St. Louis (STL) to Chicago (ORD)
Prices were available within the past 7 days and start at $59 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.
Origin airport | Lambert-St. Louis Intl. |
Destination airport | O'Hare Intl. |
Airlines serving | Alaska Airlines, American Airlines, Delta, Frontier Airlines, Southern Airways Express, United |
Roundtrip price | $108 |
Distance | 258 mi |
Flights from St. Louis (STL) to Chicago (ORD) with United
❓ How much is a flight ticket from St. Louis (STL) - Chicago (ORD) with United?
✔️ Prices were available within the past 7 days and start at $59 for one-way flights and for roundtrip, for the period specified. Prices and availability are subject to change. Additional terms apply.
❓ Which month is the cheapest flight ticket for St. Louis (STL) to Chicago (ORD) with United?
✔️ The airfares published on Expedia.com over the past 7 days saw the lowest prices for one-way departures in July and round-trip departures in .
❓ How can I find cheap United tickets from St. Louis STL to Chicago ORD?
✔️ Use the interactive calendar available on Expedia to see the cheapest United (St. Louis STL - Chicago ORD) ticket prices during the weeks surrounding your travel dates. Compare flight prices for similar timeframes and adjust departure and return dates to get the cheapest fare possible. The lowest-priced days are highlighted in green.
While it’s impossible to guarantee when to find the lowest prices, our data currently suggests that seems to be the cheapest month to take roundtrips and July seems to have the lowest one-way prices. Plane tickets for flight routes with one or more stops can sometimes be cheaper.
❓ When is the best time to buy flights from St. Louis to Chicago?
✔️ Three weeks out can be the best time to book flights with various airlines on diverse routes according to ARC & Expedia Group historical data. The data also suggests that if book on a Sunday, you could possibly save up to 20% on fares*.
❓ What is the cheapest day to fly from STL to ORD?
✔️ ARC & Expedia Group historical data suggests that travelers can save on diverse routes when starting their journey on a Thursday for international flights and on a Friday for domestic flights*. The cheapest day of the week to fly changes based on seasonal demand and route popularity. We recommend using the ‘Show flexible dates’ feature at the top of your search.
❓ Can I change or cancel my United flight from St. Louis to Chicago?
✔️ Airlines have different policies and fees for changes or cancellations. It’s important to review the ‘rules + restrictions’ section in your itinerary. We recommend filtering for ‘No change fees’ to see flexible plane tickets. Some airlines charge steep fees, while others are more flexible. Basic Economy or Light Fare tickets are generally non-refundable, but most airlines allow free cancellations or changes within 24 hours after booking. Find out more about changing or canceling your flight reservation by navigating to ‘My Trips’ and selecting ‘Change My Flight.’
*Data specialists from both ARC and Expedia Group analyzed ARC’s global flight data to distill actionable information to help people save money on travel. While it’s impossible to guarantee when to find the lowest prices, after examining the variables, we were able to observe trends.Best day of the week to book and travel recommendation is based on average round-trip ticket prices for January through early October, for both 2019 and 2020, sourced from ARC’s global airline sales database.
- Trending United Flights
- Trending Routes
- More Popular Airlines
- Nearby Airports
- Flights from Other Cities
- Expedia's Latest Trends
Most Popular United Routes from St. Louis
Most Popular United Routes from Chicago
- Newark to Cancun (EWR - CUN)
- Newark to Las Vegas (EWR - LAS)
- Los Angeles to San Salvador (LAX - SAL)
- Newark to Santiago (EWR - STI)
- Newark to San Juan (EWR - SJU)
- Los Angeles to Cancun (LAX - CUN)
- Newark to Fort Lauderdale (EWR - FLL)
- Newark to Orlando (EWR - MCO)
- Dallas to Cancun (DFW - CUN)
- Houston to Las Vegas (IAH - LAS)
Popular Domestic Routes in O'Hare Intl.
- Newark to Orlando (EWR - MCO)
- Dallas to San José del Cabo (DFW - SJD)
- Los Angeles to Honolulu (LAX - HNL)
- Los Angeles to San José del Cabo (LAX - SJD)
- Chicago to Cancun (ORD - CUN)
- Newark to Fort Lauderdale (EWR - FLL)
- Houston to Cancun (IAH - CUN)
- Los Angeles to Honolulu (LAX - HNL)
- Los Angeles to Cancun (LAX - CUN)
- Newark to Las Vegas (EWR - LAS)
Nearby Airports
- Spirit of St. Louis Airport (SUS)
- Abraham Lincoln Capital Airport (SPI)
- Quincy Regional-Baldwin Field Airport (UIN)
- Columbia Regional Airport (COU)
- Williamson County Regional Airport (MWA)
- Decatur Airport (DEC)
- Cape Girardeau Municipal Airport (CGI)
- St. Robert Regional Airport (TBN)
- Cairo Regional Airport (CIR)
- Roy Otten Memorial Airfield Airport (VRS)
- Flights from St. Louis
- Flights from St. Charles
- Flights from Maryland Heights
- Flights from Chesterfield
- Flights from O'Fallon
- Flights from Fairview Heights
- Flights from Collinsville
- Flights from O'Fallon
- Flights from Alton
- Flights from Wentzville
- Flights from Edwardsville
- Flights from East St. Louis