Flights from Chicago to St Louis

Did you mean Flights from St Louis to Chicago?

Chicago

United States

ORD

Chicago O'Hare International Airport

St Louis

United States

STL

Lambert St Louis International Airport

Distance: 258 miles

Observed award fares

A sample of one-way prices for one traveler from Roame’s fare cache. Points, fees, and seats describe the same observation. Availability can change; confirm with the loyalty program before transferring points.

Lowest price in this limited sample: 4,500 points + $25.00 for ORD → STL, Economy, on 2026-10-21, booked with Alaska Atmos Rewards. This is an observed fare, not a guaranteed price or the lowest price across all dates and programs.

Departure window: 2026-10-10 through 2026-11-08.

Recently observed award prices by route, flight, departure date, cabin, and booking program
Route / flight	Departure	Cabin	Book with	Points	Fees (USD)	Seats seen	Observed (UTC)
ORD → STL AA6468	2026-10-21	Economy	Alaska Atmos Rewards	4,500	$25.00	1	2026-10-09 21:11
ORD → STL AA3069	2026-10-21	Economy	Alaska Atmos Rewards	4,500	$25.00	9	2026-10-09 21:11
ORD → STL AA2208	2026-10-24	Economy	Alaska Atmos Rewards	4,500	$25.00	9	2026-10-10 10:04
ORD → STL AA6468	2026-10-24	Economy	Alaska Atmos Rewards	4,500	$25.00	8	2026-10-10 10:04
ORD → STL AA6468	2026-10-27	Economy	Alaska Atmos Rewards	4,500	$25.00	9	2026-10-09 23:23
ORD → STL AA3292	2026-11-01	Economy	Alaska Atmos Rewards	4,500	$25.00	9	2026-10-08 20:26
ORD → STL AA3111	2026-11-01	Economy	Alaska Atmos Rewards	4,500	$25.00	6	2026-10-08 20:26
ORD → STL AA3292	2026-11-04	Economy	Alaska Atmos Rewards	4,500	$25.00	9	2026-10-09 13:14
ORD → STL AA3111	2026-11-04	Economy	Alaska Atmos Rewards	4,500	$25.00	9	2026-10-09 13:14
ORD → STL AA772	2026-11-04	Economy	Alaska Atmos Rewards	4,500	$25.00	9	2026-10-09 13:14
ORD → STL AA3292	2026-11-05	Economy	Alaska Atmos Rewards	4,500	$25.00	9	2026-10-09 17:03
ORD → STL AA772	2026-11-06	Economy	Alaska Atmos Rewards	4,500	$25.00	9	2026-10-10 03:00

Chicago to St Louis route overview

Chicago O'Hare International Airport (ORD) serves Chicago; Lambert St Louis International Airport (STL) serves St Louis.

The airports are 258 miles apart by great-circle distance.

Frequently asked questions

Which airports serve the Chicago to St Louis route?

Chicago O'Hare International Airport (ORD) is the origin airport and Lambert St Louis International Airport (STL) is the destination airport.

How far is St Louis from Chicago?

ORD and STL are approximately 258 miles apart by great-circle distance.

More routes from Chicago

Published schedules are temporarily unavailable for ORD. Airport facts and route navigation remain available.