STL → ORDSt Louis to Chicago

live

Direct flights from St Louis (STL) to Chicago (ORD): 21 nonstop departures observed each week across 3 airlines. 93% of the last 29 operated flights arrived within 15 minutes of schedule. The median arrival is 10 minutes early. No cancellations were recorded across the 29 tracked flights. The nonstop covers 415 km, an estimated 1 hour 2 minutes in the air. Measured by Pro Flight Search from live flight boards at St Louis and Chicago. Updated 13 September 2026 at 03:18 UTC.

STL St Louis busy · +16
ORD Chicago smooth · +0
415 km · ~1h 02m est.
dep bank 05:00–20:0721x weekly
Runs reliable · 3 airlines · 21x weekly · nonstop
93% on time

of the last 29 operated STL → ORD flights arrived within 15 minutes

Median arrival delay is −10 min. 0 of 29 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →

Median arrival−10 minacross the last 29 operated legs
Flight time~1h 02mestimated from route distance
Weekly departures21x3 direct airlines on the leg
Cancelled0.0%recent route rate · 0 of 29

The week

scheduled departures · origin local time
06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
American AirlinesEnvoy AirUnited Airlines

Each mark is a scheduled departure at its origin-local time, observed operating in the last 7 days. Today is highlighted.

Who flies it

observed on the boards · 7 days
American AirlinesAA100% on time

Flights AA1926 varies daily · AA1997 varies We Th Fr Sa · AA3568 09:32 daily · AA2818 11:01 We Th Fr Sa

Envoy AirMQ

Flights MQ4259 varies daily

United AirlinesUA89% on time

Flights UA4423 06:00 Mo We Th Fr Sa Su · UA4570 07:25 daily · UA2749 08:00 Tu We Th Fr Sa · UA567 08:00 daily

History

operated legs · board outcomes
09-12AA1926arrived−20
09-12AA1997arrived+1
09-12AA2818arrived−19
09-12AA4645dep +7 → arr−43
09-12AA6355arrived+3
09-12UA2749arrived+2
09-12UA2779arrived+29
09-12UA4395arrived−6
09-12UA4423arrived−19
09-12UA4500dep +7 → arr+4
09-12UA4517arrived−10
09-12UA4601arrived−24
09-12UA4616dep +25 → arr+13
09-12UA541dep +2 → arr−14
09-11AA1926arrived−41
09-11AA1997arrived−13
09-11AA2818arrived+14
09-11AA4645arrived−31
09-11AA6355arrived−43
09-11UA2749arrived−14
09-11UA2779arrived+15
09-11UA4395arrived+66
09-11UA4423arrived+5
09-11UA4500arrived−1
09-11UA4517arrived−4
09-11UA4601arrived+3
09-11UA4616arrived−12
09-11UA541arrived−12
09-10UA3750arrived−95

Actual board outcomes rather than schedules, paired departure and arrival per flight and day.

Full board history, day by day →

Airports right now

live boards
STLSt Louis +16 min busy 🌤 few clouds · NNW 3 kt Full STL delay board →
ORDChicago +0 min smooth 🌤 few clouds · NNW 8 kt Full ORD delay board →

Weather lens

Current conditions put the pressure at STL and ORD: 44% odds of a 15+ minute delay and around +13 min expected when it bites, measured from this route's own weather-matched delay history. See live delays → · Weather risk by airport →

How the St Louis to Chicago route actually runs

Pro Flight Search records official board updates for nonstop STL to ORD flights through the day: schedules, estimates, gate pushes and actual departures. The verdict above comes from operated flights, so it reflects what this route does rather than what the timetable promises.

Planning around a delay? Live airport delays · Weather delay risk map · Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure

Cite this data

Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.

Suggested citation

Pro Flight Search — St Louis (STL) to Chicago (ORD) route reliability, measured from operated flights on official airport boards.

Canonical URL
https://proflightsearch.com/search-flights/STL-ORD
How we measure this →

STL to ORD questions

Is STL–ORD running on time right now?

Smooth skies ahead. The departure side at STL is the weaker end, route health score 89/100. The airports section above carries the live status and delay window at both ends.

Morning or evening flight on STL–ORD?

Operators schedule morning departures around 06:00 and evening departures around 17:18 from STL. Earlier flights typically land before destination-airport delays accumulate later in the day; check the ORD delay card to confirm conditions when you'd arrive.

How long is the flight from STL to ORD?

Great-circle distance is 415 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 59–66 min gate-to-gate on this route.

How often does STL–ORD fly?

3 carriers operate this route, around 135 flights a week between them. Compare carrier days and times in the airline list above.