--- title: "CA $82 Cheap Flights from St. Louis (STL) to Chicago (CHI)" description: "Cheap Flights from St. Louis (STL) to Chicago (CHI) start at CA $82 for one-way and CA $214 for round trip. Earn your airline miles on top of our rewards!" canonical: "https://www.expedia.ca/lp/flights/stl/chi/st-louis-to-chicago" language: en-CA market: CA currency: CAD prices_as_of: 2026-11-14T13:01:14Z --- # CA $82 Cheap Flights from St. Louis (STL) to Chicago (CHI) ![A river with a yellow boat, surrounded by tall buildings and a bridge.](https://images.trvl-media.com/place/178248/e6aa83ce-7ad8-43a5-9d1d-b055eefa7e78.jpg?impolicy=fcrop&w=1200&h=500&q=medium) [View CA $82 flight on Sat, Dec 5, 2026](https://www.expedia.ca/Flights-Search?leg1=from:STL,to:ORD,departure:05/12/2026TANYT&trip=oneway&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:82.00&airProductToken=AQozCjEIwYIBEgQxOTI2GPJcIK4cKMf9ngMwpP6eAzhCQABYAWoFQkFTSUNyCE9WQUlVU0JYEgoIARABGAEqAkFBGAEiBAgBEAEoAigDKAQwCw) ## Popular airlines from Lambert-St. Louis International Airport (STL) to Chicago [Delta](https://www.expedia.ca/Flights-Search?leg1=from:STL,to:CHI,departure:28/11/2026TANYT&leg2=from:CHI,to:STL,departure:05/12/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"DL"}}]) [American Airlines](https://www.expedia.ca/Flights-Search?leg1=from:STL,to:CHI,departure:28/11/2026TANYT&leg2=from:CHI,to:STL,departure:05/12/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AA"}}]) [United](https://www.expedia.ca/Flights-Search?leg1=from:STL,to:CHI,departure:28/11/2026TANYT&leg2=from:CHI,to:STL,departure:05/12/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"UA"}}]) [Southwest Airlines](https://www.expedia.ca/Flights-Search?leg1=from:STL,to:CHI,departure:28/11/2026TANYT&leg2=from:CHI,to:STL,departure:05/12/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"WN"}}]) [Frontier Airlines](https://www.expedia.ca/Flights-Search?leg1=from:STL,to:CHI,departure:28/11/2026TANYT&leg2=from:CHI,to:STL,departure:05/12/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"F9"}}]) [Alaska Airlines](https://www.expedia.ca/Flights-Search?leg1=from:STL,to:CHI,departure:28/11/2026TANYT&leg2=from:CHI,to:STL,departure:05/12/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AS"}}]) ### Be in the know Get alerts if flight prices drop or rise\* ### Book smarter Save up to 30% on select hotels after you book a flight\* ### Earn twice Earn your airline miles on top of our rewards [Sign in](https://www.expedia.ca/login) ## Cheap Flights from St. Louis to Chicago (STL-CHI) Prices were available within the past 7 days and start at CA $82 for one-way flights and CA $214 for roundtrip, for the period specified. Prices and availability are subject to change. All deals One way Roundtrip [Select American Airlines flight, departing Fri, Jan 15 from St. Louis to Chicago, returning Sat, Jan 16, priced at CA $214 Found 4 days ago](https://www.expedia.ca/Flights-Search?leg1=from:STL,to:ORD,departure:15/01/2027TANYT&leg2=from:ORD,to:STL,departure:16/01/2027TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:213.90&airProductToken=AQozCjEIwYIBEgQ0NzcyGPJcIK4cKMPMogMwos2iAzhCQABYAWoFQkFTSUNyCE9WQUlZU0JYCjMKMQjBggESBDQ4MDUYrhwg8lwojtuiAzDt26IDOEJAAFgBagVCQVNJQ3IIT1ZBSVVTQlgSCggBEAEYASoCQUEYASIECAEQASgCKAMoBDAL) Fri, Jan 15 - Sat, Jan 16 · STL · ORD · Roundtrip [Select Delta flight, departing Tue, Dec 22 from St. Louis to Chicago, returning Tue, Jan 5, priced at CA $219 Found 4 days ago](https://www.expedia.ca/Flights-Search?leg1=from:STL,to:ORD,departure:22/12/2026TANYT&leg2=from:ORD,to:STL,departure:05/01/2027TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:218.80&airProductToken=AQpGCiEIxJgBEgQ1MTc5GPJcIOO0ASikvKADMIq9oAM4RUAAWAEKIQjEmAESBDUxODcY47QBIK4cKMu-oAMwpr-gAzhFQAFYAQpECiAIxJgBEgQzNzg1GK4cIMx8KOLcoQMwzN2hAzhFQABYAQogCMSYARIENTE5MhjMfCDyXCjs3aEDMNfeoQM4RUABWAESCggBEAEYASoCREwYASIECAEQASgEMAE) Tue, Dec 22 - Tue, Jan 5 · STL · ORD · Roundtrip [Select American Airlines flight, departing Fri, Dec 11 from St. Louis to Chicago, returning Wed, Jan 6, priced at CA $236 Found 2 days ago](https://www.expedia.ca/Flights-Search?leg1=from:STL,to:ORD,departure:11/12/2026TANYT&leg2=from:ORD,to:STL,departure:06/01/2027TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:236.00&airProductToken=AQozCjEIwYIBEgQzNzQxGPJcIK4cKLLAnwMwjMGfAzhCQABYAWoFQkFTSUNyCE9WQUlZU0JYEgoIARABGAEqAkFBGAEiBAgBEAEoAigDKAQwCw) Fri, Dec 11 - Wed, Jan 6 · STL · ORD · Roundtrip [Select American Airlines flight, departing Fri, Dec 11 from St. Louis to Chicago, returning Wed, Jan 6, priced at CA $238 Found 2 days ago](https://www.expedia.ca/Flights-Search?leg1=from:STL,to:ORD,departure:11/12/2026TANYT&leg2=from:ORD,to:STL,departure:06/01/2027TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:237.10&airProductToken=AQozCjEIwYIBEgQxOTI2GPJcIK4cKIfBnwMw5MGfAzhCQABYAWoFQkFTSUNyCE9WQUlZU0JYCjMKMQjBggESBDQ3NzEYrhwg8lwo0-ahAzCy56EDOEJAAFgBagVCQVNJQ3IIT1ZBSVVTQlgSCggBEAEYASoCQUEYASIECAEQASgCKAMoBDAL) Fri, Dec 11 - Wed, Jan 6 · STL · ORD · Roundtrip [Select Delta flight, departing Tue, Dec 22 from St. Louis to Chicago, returning Thu, Dec 31, priced at CA $242 Found 4 days ago](https://www.expedia.ca/Flights-Search?leg1=from:STL,to:ORD,departure:22/12/2026TANYT&leg2=from:ORD,to:STL,departure:31/12/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:241.30&airProductToken=AQpGCiEIxJgBEgQ1MTc5GPJcIOO0ASikvKADMIq9oAM4RUAAWAEKIQjEmAESBDUxODcY47QBIK4cKMu-oAMwpr-gAzhFQAFYAQpGCiEIxJgBEgQyMDM5GK4cIOO0ASjsoaEDMMmioQM4RUAAWAEKIQjEmAESBDM5MTIY47QBIPJcKIyjoQMw%5F6OhAzhFQAFYARIKCAEQARgBKgJETBgBIgQIARABKAQwAQ) Tue, Dec 22 - Thu, Dec 31 · STL · ORD · Roundtrip [Select Delta flight, departing Tue, Dec 15 from St. Louis to Chicago, returning Thu, Dec 31, priced at CA $243 Found 4 days ago](https://www.expedia.ca/Flights-Search?leg1=from:STL,to:ORD,departure:15/12/2026TANYT&leg2=from:ORD,to:STL,departure:31/12/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:242.40&airProductToken=AQpGCiEIxJgBEgQyODY4GPJcIOO0ASiu758DMIrwnwM4RUAAWAEKIQjEmAESBDE3MTYY47QBIK4cKLjwnwMwjPGfAzhFQAFYAQpGCiEIxJgBEgQyMDM5GK4cIOO0ASjsoaEDMMmioQM4RUAAWAEKIQjEmAESBDM5MTIY47QBIPJcKIyjoQMw%5F6OhAzhFQAFYARIKCAEQARgBKgJETBgBIgQIARABKAQwAQ) Tue, Dec 15 - Thu, Dec 31 · STL · ORD · Roundtrip [Select Southwest Airlines flight, departing Wed, Dec 16 from St. Louis to Chicago, returning Mon, Jan 11, priced at CA $244 Found 3 days ago](https://www.expedia.ca/Flights-Search?leg1=from:STL,to:MDW,departure:16/12/2026TANYT&leg2=from:MDW,to:STL,departure:11/01/2027TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:243.50&airProductToken=AQoxCi8I15wBEgQ0MTczGPJcIOywASjk-J8DMKX5nwM4VkAAWAFqA1dHQXIHVkROVk4yRRIKCAIQARgCKgJIUhgBIgQIARABKAIoAygEMAE) Wed, Dec 16 - Mon, Jan 11 · STL · MDW · Roundtrip [Select Southwest Airlines flight, departing Wed, Dec 16 from St. Louis to Chicago, returning Mon, Jan 11, priced at CA $244 Found 3 days ago](https://www.expedia.ca/Flights-Search?leg1=from:STL,to:MDW,departure:16/12/2026TANYT&leg2=from:MDW,to:STL,departure:11/01/2027TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:243.60&airProductToken=AQowCi4I15wBEgMyODcY8lwg7LABKPf6nwMwvfufAzhWQABYAWoDV0dBcgdWRE5WTjJFCjEKLwjXnAESBDI3NjkY7LABIPJcKMSjogMwlKSiAzhEQABYAWoDV0dBcgdEWk5WUzJFEgoIAhABGAIqAkhSGAEiBAgBEAEoAigDKAQwAQ) Wed, Dec 16 - Mon, Jan 11 · STL · MDW · Roundtrip [Select Frontier Airlines flight, departing Fri, Dec 11 from St. Louis to Chicago, returning Wed, Jan 6, priced at CA $268 Found 2 days ago](https://www.expedia.ca/Flights-Search?leg1=from:STL,to:ORD,departure:11/12/2026TANYT&leg2=from:ORD,to:STL,departure:06/01/2027TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:267.26&airProductToken=AQpgCi4IxnISBDQ0NzQY8lwg4FwomsOfAzCCxJ8DOEVAAFgBagRQQ18xcgdSMjFHWFAyCi4IxnISBDMzOTcY4Fwgrhwo0MafAzDRx58DOEVAAVgBagRQQ18xcgdSMjFHWFAyEgoIARABGAEqAkY5GAEiBAgBEAEoAigDKAQwDQ) Fri, Dec 11 - Wed, Jan 6 · STL · ORD · Roundtrip [Select United flight, departing Tue, Jan 12 from St. Louis to Chicago, returning Sat, Jan 16, priced at CA $290 Found 4 days ago](https://www.expedia.ca/Flights-Search?leg1=from:STL,to:ORD,departure:12/01/2027TANYT&leg2=from:ORD,to:STL,departure:16/01/2027TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:289.20&airProductToken=AQoiCiAI1YIBEgQxODM0GPJcIK4cKImpogMw5KmiAzhHQABYAQohCh8I1YIBEgM0NTMYrhwg8lwogtyiAzDZ3KIDOEdAAFgBEgoIARABGAEqAlVBGAEiBAgBEAEoBDAB) Tue, Jan 12 - Sat, Jan 16 · STL · ORD · Roundtrip ## Alternative airports near Chicago Prices were available within the past 7 days. Prices and availability are subject to change. [Select flight to O'Hare Intl. ORD. Cheapest option available. Average driving time to city centre is 23 minutes. Flights from CA $585](https://www.expedia.ca/Flights-Search?leg1=from:STL,to:ORD,departure:28/11/2026TANYT&leg2=from:ORD,to:STL,departure:01/12/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) 23 min ## Book with confidence ### St. Louis to Chicago Flights #### The easy way to book your flights from St. Louis to Chicago With Expedia, it’s simple to find and book flights to Chicago from St. Louis whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 5 airlines that cover this route. There are nonstop flights to CHI-All Airports, too. Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from St. Louis to Chicago today, tomorrow, or this week. #### Save dollars with cheap flights from Lambert-St. Louis Intl., STL to CHI-All Airports, CHI Sort your search results by price to find great deals on your flight from St. Louis to Chicago—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Chicago from St. Louis currently is just CA $214 rising to CA $290\. Here are more money-saving tips: - Fly in January when flight prices are normally at their lowest - Book about a month to 6 weeks before you travel for the best prices to Chicago - Avoid peak season and weekends when flights can cost more - Early morning and late-night flights are sometimes cheaper, so try varying your travel times - One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! #### Reasons to choose Expedia for your flight to Chicago from St. Louis Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Chicago with Expedia today. ## Frequently Asked Questions ### How much is a flight from St. Louis Lambert International Airport to Chicago, IL (CHI-All Airports)? The lowest price advertised for a round-trip journey from Lambert Field to Chicago, IL (CHI-All Airports) is CA $214\. But you better act soon. This figure is based on fares listed within the last 7 days on Expedia for flights departing within the next year. Prices and availability are subject to change. Additional terms apply. ### Do I need to pay a cancellation fee if I cancel my flight from Lambert Field to Chicago, IL (CHI-All Airports)? The majority of flights can be canceled online, but each air carrier has different terms and conditions. If you do have to cancel your flight, visit our [Customer Service Portal](https://www.expedia.ca/service/?langid=1033) and follow the instructions. ### How do I find cheap flights from STL to Chicago, IL (CHI-All Airports) that have flexible change policies? Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Lambert-St. Louis Intl. Airport (STL) to Chicago, IL (CHI-All Airports) flights, you'll see a "no change fees" filter for you to select. ### How far is the flight from STL to Chicago, IL (CHI-All Airports)? With a flight distance of 400 kilometers, it's only a hop from Lambert Field to Chicago, IL (CHI-All Airports). It might be a quick journey, but it's still worth packing something to keep you entertained on board. ### Which airlines fly direct from Lambert Field to Chicago, IL (CHI-All Airports)? Southwest Airlines (WN) is one of the top choices for travelers jetting between STL and Chicago, IL (CHI-All Airports). Choose from the 208 flights it offers on this route each month. United Airlines (UA) is another popular choice. It operates 208 flights per month. Between these two airlines, you'll be able to find a good deal from St. Louis to Illinois. ### Are STL to Chicago, IL (CHI-All Airports) flight tickets cheaper when they're purchased at the last minute? Last-minute planners can occasionally score a bargain, with some super cheap fares from Lambert Field to Chicago, IL (CHI-All Airports) popping up a few weeks prior to the departure date. If you'd rather book ahead, Expedia compares and updates all the best flight deals frequently — as early as a year in advance in some cases. It does depend on the carrier though, as not all airlines advertise prices so far in advance. ## Travel information | Origin airport | Lambert-St. Louis International Airport | | ------------------- | --------------------------------------- | | Destination airport | Chicago, IL | | Distance | 429 km away | | Roundtrip price | CA $214 | ## Explore a world of travel with Expedia - [Flights](?equalTargetTab=tab-0) - [Flights from Cleveland (CLE) to Chicago (CHI)](https://www.expedia.ca/lp/flights/cle/chi/cleveland-to-chicago) - [Flights from Minneapolis (MSP) to Chicago (CHI)](https://www.expedia.ca/lp/flights/msp/chi/minneapolis-to-chicago) - [Flights from Windsor (YQG) to Chicago (CHI)](https://www.expedia.ca/lp/flights/yqg/chi/windsor-to-chicago) - [Flights from Halifax (YHZ) to Chicago (CHI)](https://www.expedia.ca/lp/flights/yhz/chi/halifax-to-chicago) - [Flights from Myrtle Beach (MYR) to Chicago (CHI)](https://www.expedia.ca/lp/flights/myr/chi/myrtle-beach-to-chicago) - [Flights from Winnipeg (YWG) to Chicago (ORD)](https://www.expedia.ca/lp/flights/ywg/ord/winnipeg-to-chicago) - 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[Flights from Cambridge (CGE) to Chicago (CHI)](https://www.expedia.ca/lp/flights/cge/chi/cambridge-to-chicago) \*Available to Expedia members. ## Other language versions ```yaml hreflang: x-default: https://www.expedia.com/lp/flights/stl/chi/st-louis-to-chicago sv-SE: https://www.expedia.se/lp/flyg/stl/chi/st-louis-till-chicago en-PH: https://www.expedia.com.ph/lp/flights/stl/chi/st-louis-to-chicago en-CA: https://www.expedia.ca/lp/flights/stl/chi/st-louis-to-chicago en-IE: https://www.expedia.ie/lp/flights/stl/chi/st-louis-to-chicago de-DE: https://www.expedia.de/lp/fluge/stl/chi/st-louis-nach-chicago es: https://www.expedia.com/es/lp/vuelos/stl/chi/st-louis-a-todos-los-aeropuertos-de-chicago en-KR: https://www.expedia.co.kr/en/lp/flights/stl/chi/st-louis-to-chicago nl-NL: https://www.expedia.nl/lp/vluchten/stl/chi/st-louis-naar-chicago en-US: https://www.expedia.com/lp/flights/stl/chi/st-louis-to-chicago en-TH: https://www.expedia.co.th/en/lp/flights/stl/chi/st-louis-to-chicago en-TW: https://www.expedia.com.tw/en/lp/flights/stl/chi/st-louis-to-chicago en-GB: https://www.expedia.co.uk/lp/flights/stl/chi/st-louis-to-chicago zh-CN: https://www.expedia.com/cn/lp/flights/stl/chi/st-louis-to-chicago fr-CA: https://www.expedia.ca/fr/lp/vols/stl/chi/st-louis-a-chicago ar: https://www.expedia.sa/lp/flights/stl/chi/st-louis-to-chicago ```