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

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The best prices from St Louis to Chicago-O'Hare Intl are usually found in February or May, booked 54 days in advance, depart on a Monday or Saturday and return on a Tuesday

Home North America USA Illinois Chicago Chicago-O'Hare Intl Cheap flights from St Louis to Chicago-O'Hare Intl

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

STL - ORD
Price
$201 - $295
ORD
Temperature
35.6 - 86 °F
ORD
Rainfall
1.5 - 4.8 inches
Popular in August High demand for flights, 15% potential price rise
Cheapest in February Best time to find cheap flights, 20% potential price drop
Round-trip from €201 From St Louis to Chicago-O'Hare Intl
One-way from €86 One-way flight from St Louis to Chicago-O'Hare Intl
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 St Louis to Chicago-O'Hare Intl?

It’s generally more expensive to depart on a Sunday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.

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

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 37 days in advance, which can save you up to 10% on flights from St Louis to Chicago-O'Hare Intl compared to booking the week you need them. Waiting 37 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $177. For sooner than that we have options available in the next 3 days from $177.

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

One of the essential ways to save on airfare from St Louis to Chicago-O'Hare Intl is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight at noon could potentially save you up to 8% on airfare.

Cheap flights from St Louis to Chicago-O'Hare Intl in September, October 2020

The best prices found for STL to ORD flights for September, October
15 Oct - 20 Oct
$77pp
STL
Lambert-St Louis
Multiple Airlines
Non-Stop
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
American Airlines
Non-Stop
STL
Lambert-St Louis
18 Oct - 21 Oct
$87pp
STL
Lambert-St Louis
Multiple Airlines
Non-Stop
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
United Airlines
Non-Stop
STL
Lambert-St Louis
15 Oct - 20 Oct
$90pp
STL
Lambert-St Louis
Multiple Airlines
 
1 STOP
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
United Airlines
Non-Stop
STL
Lambert-St Louis

St Louis to Chicago-O'Hare Intl 2020 flight deals

Cheap flights to Chicago-O'Hare Intl from St Louis found for this year
15 Oct - 20 Oct
$77pp
STL
Lambert-St Louis
Multiple Airlines
Non-Stop
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
American Airlines
Non-Stop
STL
Lambert-St Louis
18 Oct - 21 Oct
$87pp
STL
Lambert-St Louis
Multiple Airlines
Non-Stop
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
United Airlines
Non-Stop
STL
Lambert-St Louis
15 Oct - 20 Oct
$90pp
STL
Lambert-St Louis
Multiple Airlines
 
1 STOP
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
United Airlines
Non-Stop
STL
Lambert-St Louis

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

Save time with St Louis to Chicago-O'Hare Intl direct flight deals
15 Oct - 20 Oct
$77pp
STL
Lambert-St Louis
Multiple Airlines
Non-Stop
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
American Airlines
Non-Stop
STL
Lambert-St Louis
1 Oct - 17 Oct
$87pp
STL
Lambert-St Louis
Multiple Airlines
Non-Stop
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
American Airlines
Non-Stop
STL
Lambert-St Louis
14 Jan - 18 Jan
$97pp
STL
Lambert-St Louis
Multiple Airlines
Non-Stop
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
United Airlines
Non-Stop
STL
Lambert-St Louis

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

Late deals on round-trip flights to Chicago-O'Hare Intl from St Louis, departing today and this week
25 Sep - 27 Sep
$166pp
STL
Lambert-St Louis
Air Choice One
 
1 STOP
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Air Choice One
 
1 STOP
STL
Lambert-St Louis
23 Sep - 28 Sep
$168pp
STL
Lambert-St Louis
Multiple Airlines
 
1 STOP
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Frontier
 
1 STOP
STL
Lambert-St Louis
24 Sep - 28 Sep
$177pp
STL
Lambert-St Louis
Multiple Airlines
Non-Stop
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
United Airlines
Non-Stop
STL
Lambert-St Louis

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

The cheapest one-way flights from St Louis to Chicago-O'Hare Intl
8:30 am - 11:40 am
Air Choice One
1 Stop
27h 10m
STL - ORD
Air Choice One
$86
Kiwi.com
2:45 pm - 12:11 pm
Cape Air
1 Stop
21h 26m
STL - ORD
Cape Air
$148
8:40 am - 3:57 pm
Delta
1 Stop
7h 17m
STL - ORD
Delta
$280
Delta

Related info for your journey

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

Flight FAQs

From St Louis to Chicago-O'Hare Intl

Are flight prices decreasing from St Louis to Chicago-O'Hare Intl 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 St Louis and Chicago-O'Hare Intl 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.

Can I find flights from St Louis to Chicago-O'Hare Intl for under $100 on Cheapflights?

Yes, there are multiple flights from St Louis to Chicago-O'Hare Intl for under $100. The cheapest flight booked recently is on Multiple Airlines for just $77, but on average you can expect to pay $127.

Are there nonstop flights from St Louis to Chicago-O'Hare Intl for under $100 on Cheapflights?

Cheapflights has at least 20 direct flights from St Louis to Chicago-O'Hare Intl under $100. A good price for a nonstop flight from St Louis to Chicago-O'Hare Intl is less than $180.

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

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

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

The rainfall in St Louis is generally same as the rainfall in Chicago-O'Hare Intl. This will continue over the next 10 days.

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

Expect the weather to be around 90 °F on average in July. As the temperature peaks, try to get your plans done early, as flight price and availability will have an impact on your travels. The climate in Chicago-O'Hare Intl is generally colder than in St Louis.

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

Departing from St Louis to Chicago-O'Hare Intl will take you 1h 12m. Both multi-stop and nonstop flights can be found to your destination and back.

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

Currently priced at $118, Delta will fly you from St Louis to Chicago-O'Hare Intl and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Major Airline and Air Choice One - these airlines can fly you to your destination from $139 and $159, respectively. Delta is currently priced 52% below the average price you’ll pay for this route.

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

The cheapest airlines for a one-way flight from St Louis to Chicago-O'Hare Intl are Delta ($59), Air Choice One ($79), and Cape Air ($108).

Related searches

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

St Louis to Chicago from $128 pp
Kansas City to Chicago from $132 pp
Columbia to Chicago from $136 pp
Cape Girardeau to Chicago from $176 pp
Joplin to Chicago from $177 pp
Springfield to Chicago from $216 pp

Destination information for Chicago-O'Hare Intl

Things to know before you go. Useful info for your trip from St Louis to Chicago-O'Hare Intl
Flight duration
1h 18m
Average temperature for September in Chicago-O'Hare Intl
77.0 °F
Avg rainfall for September in Chicago-O'Hare Intl
3.4 ″

Airports servicing St. Louis

St Louis (STL)

Airports servicing Chicago

Chicago-O'Hare Intl (ORD)

Popular flight searches

Check out other popular destinations found by fellow travelers

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

Morning 6 AM to noon 63% of STL to ORD departures
Afternoon Noon to 6 PM 27% of STL to ORD departures
Early morning Midnight to 6 AM 10% of STL to ORD departures
Evening 6 PM to midnight 0% of STL to ORD departures
Midnight
6 AM
Noon
6 PM
Weekly flight availability
from St Louis to Chicago-O'Hare Intl
Sunday
31 daily flights
Monday
32 daily flights
Tuesday
29 daily flights
Wednesday
32 daily flights
Thursday
30 daily flights
Friday
36 daily flights
Saturday
30 daily flights
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