St Louis to Chicago (STL–ORD) — Airlines, Schedules & Connections
No flights match your filters.
No scheduled airline flights on this route — it's flown by charter / private operators (). No nonstop flights on this route. connecting options below.
Most recently operated nonstop flights — the month shown is when each was last scheduled. Most destinations remain reachable with a connection.
No discontinued nonstop flights on record for this route.
STL–ORD is served by 11 airlines with nonstop service. United Airlines, American Airlines and GoJet Airlines lead the route. The flight covers 258 miles in approximately 1h 34m. Beyond nonstop, 1-stop connecting options are also available.
Airline Landscape
| Airline | Freq/wk | Aircraft | Duration | Dep OTP | Alliance | Codeshares |
|---|---|---|---|---|---|---|
| UA United Airlines Also: AC, AV, CM, NH, NZ, OS, TK | 111 | 319, 320, 738, 73G, CR5, CR7, E75L, E7W | 1h30-1h36 | Star Alliance | AC, AV, CM, NH, NZ, OS, TK | |
| AA American Airlines Also: AS, AY, BA, CX, EI, GF, IB, JL, QR, RJ | 56 | 319, CR7, E70, E75 | 1h28-1h55 | Oneworld | AS, AY, BA, CX, EI, GF, IB, JL, QR, RJ | |
| G7 GoJet Airlines | 7 | CR5 | 1h36 | – | – | |
| DL Delta Air Lines | 1 | – | – | SkyTeam | – | |
| F9 Frontier | 1 | – | – | – | – | |
| OO SkyWest Airlines | 1 | – | – | – | – | |
| VB Viva | 1 | – | – | – | – | |
| AM Aeromexico | 0 | – | – | SkyTeam | – | |
| LH Lufthansa | 0 | – | – | – | – | |
| NK Spirit Airlines | 0 | – | – | – | – | |
| WN Southwest Airlines | 0 | – | – | – | – |
Weekly Schedule Pattern
Connection Landscape
On-Time Performance
Other ways to reach Chicago from St Louis
| Metric | STL→ORD | SPI→ORD | UIN→ORD |
|---|---|---|---|
| Distance from STL | – | 84 mi | 94 mi |
| Nonstop airlines | 11 | 3 | 1 |
| Weekly flights | 451 | 21 | 7 |
| Flight time | 1h 34m | 1h 18m | 1h 45m |
| Departure OTP | 100% | – | – |
Travel Essentials
STL: CDT · ORD: CDT
When it's 6:00 PM in St Louis, it's 6:00 PM in Chicago.
CTA Blue Line runs 24/7 from O'Hare to downtown Chicago (45 min, $5). Taxis use a flat-rate zone system; downtown is around $40–45 plus tip. Ride-shares are typically $30–50.The Airport Transit System (ATS) connects all terminals and parking. Metra commuter rail does not serve O'Hare directly; transfer downtown via Blue Line.
Continental climate with four distinct seasons. Summers are warm and humid (25–32°C) with afternoon thunderstorms. Winters are cold (−10 to −2°C) with heavy snowfall that regularly delays flights December through March.
Spring and fall are mild but unpredictable. Pack layers. Lake Michigan moderates temperatures near the lakefront, but O'Hare sits inland and runs colder.
STL–ORD Quick Facts
Frequently Asked Questions
St. Louis to Chicago O'Hare
STL–ORD spans 260 miles across the Midwest, making it one of the shorter commercial jet routes in the US. Six carriers provide service at roughly 283 weekly frequencies, with United Express accounting for a significant share given O'Hare's hub role. The route competes directly with Amtrak's downtown-to-downtown Lincoln Service, giving travelers a genuine multimodal choice.
Winter Disruption and Hub Context
Both St. Louis Lambert and O'Hare face serious winter weather exposure, and the combination of ice storms at STL and lake-effect disruptions at ORD creates one of the more reliably disrupted domestic corridors from November through March. O'Hare ground stops cascade delays backward to STL departures, making early-morning flights a practical hedge. The route primarily serves as an ORD feed for connecting passengers rather than a large standalone origin-destination market.