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CHI → STL · about 1h 12m nonstop · 258 miles · 4 airlines · fares updated September 16, 2026
Fares shown are recorded lows. An agent confirms today's live price on the call.
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Call to book from $255(708) 866-8751The lowest fares recorded on this route in recent searches. Call and an agent checks whether a similar fare is still open for your dates.
Recorded fares for CHI to STL from cached search data, not live quotes. An agent confirms availability and today's price on the call.
Chicago to St. Louis is a well-served route, with a nonstop taking about 1h 12m. Below you will find the lowest fares recorded recently, which airlines fly it, how prices move through the year, and what to know about the airports at each end. When you are ready, call (708) 866-8751 and a live agent will confirm today's price and book it.
The lowest one-way fare we have on record for this route is $255 on Southwest. Fares like that usually show up on off-peak days and for travel booked a few weeks out; an agent can check whether a similar fare is available for your dates.
Because Delta Air Lines treats St. Louis as a hub, this pairing tends to have frequent departures throughout the day. American Airlines and Southwest Airlines also compete here, which keeps fares in check.
At 258 miles, this is a short hop: gate to gate in about 1h 12m, which makes a same-day round trip realistic and puts driving and rail in competition with the fare. Early-morning departures are usually the cheapest and least likely to be delayed.
Recorded lows on CHI–STL have come from American and Southwest recently. The cheapest carrier on a given day depends on how full each flight is, so a live comparison usually beats any rule of thumb.
Lowest recorded one-way fare by departure date, next 32 days with data. Green bars are within 10% of the cheapest day.
Cheapest day in range: Wednesday, October 28 at $77. Recorded lows, not live quotes.
Wednesday departures average $142, about 9% below Friday at $156, based on recorded daily lows for the next two months.
From the Midwest, the expensive weeks cluster around Thanksgiving, Christmas, and spring break in March; May, early June, September, and October tend to price lowest.
Tuesday, Wednesday, and Saturday departures are usually the cheapest days on domestic routes; Friday and Sunday are the most expensive. Early-morning and late-evening flights are often priced below the midday departures.
For domestic travel, booking three to eight weeks ahead usually captures the best price. Inside two weeks, fares climb; more than four months out, airlines have not yet released their cheapest inventory.
Carriers most likely to serve this route, with the lowest fare recorded for each where our data names the airline. Agents compare all of them on one call.
| Airline | Recorded from | Changes on standard fares | Lowest fare brand | Call |
|---|---|---|---|---|
| Southwest Airlines | $255 | No fee, fare difference | Basic | Call(708) 866-8751 |
| American Airlines | $258 | No fee, fare difference | Basic Economy | Call(708) 866-8751 |
| Delta Air Lines | ask an agent | No fee, fare difference | Basic Economy | Call(708) 866-8751 |
| United Airlines | ask an agent | No fee, fare difference | Basic Economy | Call(708) 866-8751 |
Carriers listed are those most likely to serve the pair based on hubs and recorded fares. WarBird Flight is independent and not affiliated with any airline.
Recorded Southwest fares on CHI–STL. Southwest on this route · independent service, not affiliated with Southwest.
Recorded American fares on CHI–STL. American on this route · independent service, not affiliated with American.
Chicago has 2 airports on this route: O'Hare International Airport (ORD) and Chicago Midway International Airport (MDW). Fares can differ between them for the same day, and driving time to each is worth weighing against a lower fare. An agent will quote all 2.
You will land at St Louis Lambert International Airport (STL), a Southwest hub.
The same city pair priced from each airport combination. Differences on the same day are often larger than the drive between airports.
Fares from a neighboring airport are sometimes far lower than the drive is long. Agents quote all of these on one call.
Licensed agents at our partner agency handle these by phone, 24/7. No charge for a quote.
The lowest one-way fare we have recorded recently is $255. Fares change daily; call (708) 866-8751 for today's price.
A nonstop flight takes about 1h 12m to cover 258 miles. Connecting itineraries add two to five hours depending on the layover.
Delta Air Lines, United Airlines, American Airlines, and Southwest Airlines are the carriers most likely to serve this route. We book all of them.
From the Midwest, the expensive weeks cluster around Thanksgiving, Christmas, and spring break in March; May, early June, September, and October tend to price lowest.
Yes. Call (708) 866-8751 and a live agent will search every airline, quote today's fare, and book it for you. WarBird Flight is an independent travel booking service; calls are answered by licensed travel agents at our partner agency.
Chicago has ORD and MDW. Compare the fare from each with your travel time to the airport; an agent can quote all of them at once.
A government-issued photo ID such as a REAL ID-compliant driver's license, a passport, or a passport card. Children under 18 flying with an adult do not need ID on domestic flights. If your license is not REAL ID-compliant, bring a passport.
Yes on most carriers, with an unaccompanied-minor service fee and age limits that differ by airline. Nonstop flights are strongly preferred and some airlines require them for younger children. Agents can book the service, note the guardian details, and confirm the fee before you pay.
