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Cheap flights from Chicago-O'Hare Intl to St Louis (ORD - STL)

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The best prices from Chicago-O'Hare Intl to St Louis are usually found in July or August, booked 60 days in advance, depart on a Tuesday or Saturday and return on a Monday

How to find the cheapest flight from
Chicago-O'Hare Intl (ORD) to St Louis (STL)

ORD - STL
Price
$106 - $284
STL
Temperature
44.6 - 89.6 °F
STL
Rainfall
2.2 - 5.1 inches

Popular in

September

High demand for flights, 21% potential price rise

Cheapest in

July

Best time to find cheap flights, 53% potential price drop

Round-trip from

$106

From Chicago-O'Hare Intl to St Louis

One-way from

$77

One-way flight from Chicago-O'Hare Intl to St Louis

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest day to fly round-trip from Chicago-O'Hare Intl to St Louis?

Users have found that flying from Chicago-O'Hare Intl to St Louis on a Sunday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

How far in advance should I book a flight from Chicago-O'Hare Intl to St Louis?

Users have found that booking a flight from Chicago-O'Hare Intl to St Louis at least 31 days early can save you up to 96% on average compared to booking a flight this week. If booking 31 days before your flight isn’t an option for you, users have found flights from Chicago-O'Hare Intl to St Louis for as little as $374 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $553 for flights departing within the next 3 days.

What is the cheapest month to fly from Chicago-O'Hare Intl to St Louis?

Due to multiple factors, expect to potentially pay more when booking in December. For low rates, August can be a great choice for travel to St Louis. Flights to St Louis from Chicago-O'Hare Intl in August are about $266 on average during August, but can be found for as low as $158.

When is the cheapest time to fly from Chicago-O'Hare Intl to St Louis (ORD - STL)?

It’s optimal to fly from Chicago-O'Hare Intl to St Louis at noon. By choosing this option you can save up to 9% on the cost of your flight, compared to a flight in the afternoon.

Cheap flights from Chicago-O'Hare Intl to St Louis in November, December 2020

The best prices found for ORD to STL flights for November, December
5 Dec - 10 Jan
$120pp
ORD
Chicago O'Hare Intl
Frontier
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
Frontier
 
1 STOP
ORD
Chicago O'Hare Intl
3 Dec - 5 Dec
$135pp
ORD
Chicago O'Hare Intl
Multiple Airlines
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
Multiple Airlines
 
1 STOP
ORD
Chicago O'Hare Intl
23 Dec - 26 Dec
$137pp
ORD
Chicago O'Hare Intl
American Airlines
Non-Stop
STL
Lambert-St Louis
STL
Lambert-St Louis
American Airlines
Non-Stop
ORD
Chicago O'Hare Intl

Chicago-O'Hare Intl to St Louis 2021 flight deals

Cheap flights to St Louis from Chicago-O'Hare Intl found for next year
5 Dec - 10 Jan
$120pp
ORD
Chicago O'Hare Intl
Frontier
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
Frontier
 
1 STOP
ORD
Chicago O'Hare Intl
3 Dec - 5 Dec
$135pp
ORD
Chicago O'Hare Intl
Multiple Airlines
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
Multiple Airlines
 
1 STOP
ORD
Chicago O'Hare Intl
23 Dec - 26 Dec
$137pp
ORD
Chicago O'Hare Intl
American Airlines
Non-Stop
STL
Lambert-St Louis
STL
Lambert-St Louis
American Airlines
Non-Stop
ORD
Chicago O'Hare Intl

Non-stop flights to St Louis from Chicago-O'Hare Intl

Save time with Chicago-O'Hare Intl to St Louis direct flight deals
23 Dec - 26 Dec
$137pp
ORD
Chicago O'Hare Intl
American Airlines
Non-Stop
STL
Lambert-St Louis
STL
Lambert-St Louis
American Airlines
Non-Stop
ORD
Chicago O'Hare Intl
13 Dec - 28 Dec
$152pp
ORD
Chicago O'Hare Intl
United Airlines
Non-Stop
STL
Lambert-St Louis
STL
Lambert-St Louis
United Airlines
Non-Stop
ORD
Chicago O'Hare Intl
29 Dec - 29 Dec
$161pp
ORD
Chicago O'Hare Intl
American Airlines
Non-Stop
STL
Lambert-St Louis
STL
Lambert-St Louis
American Airlines
Non-Stop
ORD
Chicago O'Hare Intl

Last minute flights from Chicago-O'Hare Intl to St Louis

Late deals on round-trip flights to St Louis from Chicago-O'Hare Intl, departing today and this week
5 Dec - 10 Jan
$120pp
ORD
Chicago O'Hare Intl
Frontier
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
Frontier
 
1 STOP
ORD
Chicago O'Hare Intl
4 Dec - 6 Dec
$145pp
ORD
Chicago O'Hare Intl
Multiple Airlines
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
Frontier
 
1 STOP
ORD
Chicago O'Hare Intl
9 Dec - 12 Dec
$148pp
ORD
Chicago O'Hare Intl
Multiple Airlines
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
Air Choice One
 
1 STOP
ORD
Chicago O'Hare Intl

One-way flights to St Louis from Chicago-O'Hare Intl

The cheapest one-way flights from Chicago-O'Hare Intl to St Louis
1:00 pm - 10:10 am
Air Choice One
1 Stop
21h 10m
ORD - STL
Air Choice One
$77
Kiwi.com
9:07 am - 4:48 pm
American Airlines
1 Stop
7h 41m
ORD - STL
American Airlines
2:00 am - 11:50 am
Delta
2 Stops
9h 50m
ORD - STL
Delta
$98
Delta

Related info for your journey

Useful info, stats and facts about Chicago-O'Hare Intl to St Louis flights.

Flight FAQs

From Chicago-O'Hare Intl to St Louis

Are flight prices decreasing from Chicago-O'Hare Intl to St Louis due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both Chicago-O'Hare Intl and St Louis for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

Which airlines flying from Chicago O'Hare Intl to Lambert-St Louis have flexible cancellations due to COVID-19?

Some of the carriers operating flights from Chicago O'Hare Intl to Lambert-St Louis that may be offering flexible cancellation policies are American Airlines, United Airlines, and Cape Air. Our site will let you filter for all airlines offering greater flexibility due to COVID-19.

Can I find flights from Chicago-O'Hare Intl to St Louis for under $200 on Cheapflights?

Yes, there are multiple flights from Chicago-O'Hare Intl to St Louis for under $200. The cheapest flight booked recently is on Frontier for just $120, but on average you can expect to pay $145.

Are there nonstop flights from Chicago-O'Hare Intl to St Louis for under $200 on Cheapflights?

Cheapflights has at least 10 direct flights from Chicago-O'Hare Intl to St Louis under $200. A good price for a nonstop flight from Chicago-O'Hare Intl to St Louis is less than $200.

Are there last-minute flights available from Chicago-O'Hare Intl to St Louis for under $200?

There are currently 20+ open flights from Chicago-O'Hare Intl to St Louis within the next 7 days for less than $200.

What days are nonstop flights available from Chicago-O'Hare Intl to St Louis?

Days when nonstop flights are available for this flight are: Sunday, Monday.

How many flights depart from Chicago-O'Hare Intl to St Louis on average per day?

On average, you can expect to see 8 flights from Chicago O'Hare Intl to Lambert-St Louis a day.
Afternoon (Noon - 6pm) - 38% of flight departures
Evening (6pm - Midnight) - 63% of flight departures

Does it rain more in Chicago-O'Hare Intl or St Louis?

Expected rainfall in Chicago-O'Hare Intl is more than in St Louis. You can expect this to be the case over the next 15 days.

Is Chicago-O'Hare Intl weather warmer or cooler than St Louis?

With an average temperature of 90 °F, peak weather can be found in July. As a traveler, expect to see changes in flight prices during that period. The temperatures in St Louis are hotter than in Chicago-O'Hare Intl.

How long is the flight from Chicago-O'Hare Intl to St Louis?

Departing from Chicago-O'Hare Intl to St Louis will take you 1h 17m. The distance between Chicago-O'Hare Intl and St Louis is about 259 mi. Generally, flights for this route are nonstop.

What are the cheapest airlines flying from Chicago-O'Hare Intl to St Louis round-trip?

Cheapflights users have booked flights from Chicago-O'Hare Intl to St Louis round-trip from $120. Other airlines that can offer you cheap pricing are American Airlines, from $137, and Delta, from $146. These flights start at 46% lower than the current average price 3 months from now.

What are the cheapest airlines to fly from Chicago-O'Hare Intl to St Louis one-way?

The cheapest airlines for a one-way flight from Chicago-O'Hare Intl to St Louis are Frontier ($53), American Airlines ($69), and Air Choice One ($71).

Alternative routes for Chicago-O'Hare Intl to St Louis

Destination information for St Louis

Things to know before you go. Useful info for your trip from Chicago-O'Hare Intl to St Louis
Flight duration
1h 23m
Average temperature for November in St Louis
57.2 °F
Avg rainfall for November in St Louis
3.4 ″

Airports servicing Chicago

Airports servicing St. Louis

Top 3 airlines from Chicago-O'Hare Intl to St Louis

The chart below displays the airlines Cheapflights users traveling from Chicago-O'Hare Intl to St Louis choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.

Airline Cheapest Average Flexibility On-time COVID-19 safety
Cape Air
$78 $154 No cancel fee 63%

We couldn't confirm the COVID-19 safety measures taken by Cape Air. Please check directly on their website for additional information.

American Airlines
$145 $329 No cancel fee 71%
United Airlines
$145 $371 No cancel fee 69%

Hourly flight availability from Chicago-O'Hare Intl to St Louis

Afternoon Noon to 6 PM 67% of ORD to STL departures
Morning 6 AM to noon 23% of ORD to STL departures
Evening 6 PM to midnight 9% of ORD to STL departures
Early morning Midnight to 6 AM 1% of ORD to STL departures
Midnight
6 AM
Noon
6 PM
Weekly flight availability
from Chicago-O'Hare Intl to St Louis
Sunday
34 daily flights
Monday
32 daily flights
Tuesday
11 daily flights
Wednesday
19 daily flights
Thursday
8 daily flights
Friday
18 daily flights
Saturday
29 daily flights
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