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Cheap flights from Chicago O'Hare Intl Airport to Missouri from $46

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago O'Hare Intl Airport to Missouri departing on 9/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Chicago O'Hare Intl Airport to Missouri

Cheap round-trip flights

United Airlines Logo
12:55 pm - 2:19 pmORD-STL
1h 24mnonstop
United Airlines Logo
12:25 pm - 1:50 pmSTL-ORD
1h 25mnonstop
$91United Airlines
Find Deal
Sat, Sep 20 - Sat, Oct 4
American Airlines Logo
8:00 am - 9:26 amORD-STL
1h 26mnonstop
American Airlines Logo
7:23 am - 8:45 amSTL-ORD
1h 22mnonstop
$92American Airlines
Find Deal
Sat, Sep 20 - Sat, Sep 27
United Airlines Logo
8:00 pm - 9:42 pmORD-MCI
1h 42mnonstop
United Airlines Logo
4:48 pm - 6:35 pmMCI-ORD
1h 47mnonstop
$105United Airlines
Find Deal
Tue, Sep 2 - Tue, Sep 9
American Airlines Logo
7:30 pm - 8:50 pmORD-STL
1h 20mnonstop
American Airlines Logo
6:00 am - 7:24 amSTL-ORD
1h 24mnonstop
$116American Airlines
Find Deal
Sat, Aug 30 - Sun, Aug 31
Contour Logo
5:30 pm - 7:05 pmORD-CGI
1h 35mnonstop
Contour Logo
3:05 pm - 4:45 pmCGI-ORD
1h 40mnonstop
$121Contour
Find Deal
Thu, Aug 28 - Mon, Sep 1
Contour Logo
5:30 pm - 7:05 pmORD-CGI
1h 35mnonstop
Contour Logo
3:05 pm - 4:45 pmCGI-ORD
1h 40mnonstop
$123Contour
Find Deal
Thu, Aug 28 - Mon, Sep 1
Southwest Logo
2:55 pm - 8:30 pmORD-STL
5h 35m1 stop
Southwest Logo
3:25 pm - 10:00 pmSTL-ORD
6h 35m1 stop
$123Southwest
Find Deal
Sat, Sep 20 - Sat, Oct 4
Southwest Logo
1:50 pm - 11:25 pmORD-STL
9h 35m1 stop
Southwest Logo
6:35 am - 12:45 pmSTL-ORD
6h 10m1 stop
$128Southwest
Find Deal
Thu, Sep 18 - Sat, Sep 20
Southern / Mokulele Logo
8:15 am - 12:00 pmORD-STL
3h 45m1 stop
Southern / Mokulele Logo
5:15 pm - 8:39 pmSTL-ORD
3h 24m1 stop
$169Southern / Mokulele
Find Deal
Fri, Sep 19 - Sun, Sep 21
Southern / Mokulele Logo
8:15 am - 12:00 pmORD-STL
3h 45m1 stop
Southern / Mokulele Logo
9:20 am - 7:24 amSTL-ORD
22h 04m1 stop
$178Southern / Mokulele
Find Deal
Sun, Sep 14 - Wed, Sep 17

Southern / Mokulele flights from Chicago O'Hare Intl Airport to Missouri

Our best Southern / Mokulele deals on Chicago O'Hare Intl Airport to Missouri flight tickets
Southern / Mokulele
Sep 19
ORD8:15 amChicago O'Hare Intl
3h 45m
1 stop
STL12:00 pmLambert-St Louis
Sep 21
STL5:15 pmLambert-St Louis
3h 24m
1 stop
ORD8:39 pmChicago O'Hare Intl
$169
Find similar
Southern / Mokulele
Sep 14
ORD8:15 amChicago O'Hare Intl
3h 45m
1 stop
STL12:00 pmLambert-St Louis
Sep 17
STL9:20 amLambert-St Louis
22h 04m
1 stop
ORD7:24 amChicago O'Hare Intl
$178
Find similar
Southern / Mokulele
Oct 2
ORD1:10 pmChicago O'Hare Intl
3h 25m
1 stop
STL4:35 pmLambert-St Louis
Oct 5
STL5:15 pmLambert-St Louis
3h 24m
1 stop
ORD8:39 pmChicago O'Hare Intl
$179
Find similar

Southwest flights from Chicago O'Hare Intl Airport to Missouri

Our best Southwest deals on Chicago O'Hare Intl Airport to Missouri flight tickets
Southwest
Sep 20
ORD2:55 pmChicago O'Hare Intl
5h 35m
1 stop
STL8:30 pmLambert-St Louis
Oct 4
STL3:25 pmLambert-St Louis
6h 35m
1 stop
ORD10:00 pmChicago O'Hare Intl
$123
Find similar
Southwest
Sep 18
ORD1:50 pmChicago O'Hare Intl
9h 35m
1 stop
STL11:25 pmLambert-St Louis
Sep 20
STL6:35 amLambert-St Louis
6h 10m
1 stop
ORD12:45 pmChicago O'Hare Intl
$128
Find similar
Southwest
Sep 16
ORD7:30 amChicago O'Hare Intl
7h 00m
1 stop
STL2:30 pmLambert-St Louis
Oct 14
STL6:55 amLambert-St Louis
5h 50m
1 stop
ORD12:45 pmChicago O'Hare Intl
$141
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Chicago O'Hare Intl Airport to Missouri that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated August 7, 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Missouri that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoSt. Louis

ORD - STL

ORDSTL

Chicago O'Hare Intl

Sat 9/20

12:55 pm-2:19 pm

Nonstop1h 24m

Lambert-St Louis

Sat 10/4

12:25 pm-1:50 pm

Nonstop1h 25m

$91

ChicagoSt. Louis

ORD - STL

ORDSTL

Chicago O'Hare Intl

Sat 9/20

8:00 am-9:26 am

Nonstop1h 26m

Lambert-St Louis

Sat 9/27

7:23 am-8:45 am

Nonstop1h 22m

$92

ChicagoKansas City

ORD - MCI

ORDMCI

Chicago O'Hare Intl

Tue 9/2

8:00 pm-9:42 pm

Nonstop1h 42m

Kansas City

Tue 9/9

4:48 pm-6:35 pm

Nonstop1h 47m

$105

ChicagoSt. Louis

ORD - STL

ORDSTL

Chicago O'Hare Intl

Sat 8/30

7:30 pm-8:50 pm

Nonstop1h 20m

Lambert-St Louis

Sun 8/31

6:00 am-7:24 am

Nonstop1h 24m

$116

ChicagoCape Girardeau

ORD - CGI

ORDCGI

Chicago O'Hare Intl

Thu 8/28

5:30 pm-7:05 pm

Nonstop1h 35m

Cape Girardeau

Mon 9/1

3:05 pm-4:45 pm

Nonstop1h 40m

$121

ChicagoCape Girardeau

ORD - CGI

ORDCGI

Chicago O'Hare Intl

Thu 8/28

5:30 pm-7:05 pm

Nonstop1h 35m

Cape Girardeau

Mon 9/1

3:05 pm-4:45 pm

Nonstop1h 40m

$123

ChicagoSt. Louis

ORD - STL

ORDSTL

Chicago O'Hare Intl

Sat 9/20

2:55 pm-8:30 pm

1 stop5h 35m

Lambert-St Louis

Sat 10/4

3:25 pm-10:00 pm

1 stop6h 35m

$123

ChicagoSt. Louis

ORD - STL

ORDSTL

Chicago O'Hare Intl

Thu 9/18

1:50 pm-11:25 pm

1 stop9h 35m

Lambert-St Louis

Sat 9/20

6:35 am-12:45 pm

1 stop6h 10m

$128

ChicagoSt. Louis

ORD - STL

ORDSTL

Chicago O'Hare Intl

Fri 9/19

8:15 am-12:00 pm

1 stop3h 45m

Lambert-St Louis

Sun 9/21

5:15 pm-8:39 pm

1 stop3h 24m

$169

ChicagoSt. Louis

ORD - STL

ORDSTL

Chicago O'Hare Intl

Sun 9/14

8:15 am-12:00 pm

1 stop3h 45m

Lambert-St Louis

Wed 9/17

9:20 am-7:24 am

1 stop22h 04m

$178

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Missouri from

How to get the cheapest flight ticket from Chicago O'Hare Intl Airport to Missouri

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Missouri?

In general, August is the cheapest month to fly from Chicago O'Hare Intl Airport to Missouri. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $211. If you aren’t able to travel to Missouri during the month of August, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $212.

What is the cheapest day to depart on your flight to Missouri?

The cheapest day to depart from Chicago O'Hare Intl Airport to Missouri is on a Friday when prices can be found for as low as $270. Flights from Chicago O'Hare Intl Airport to Missouri on a Monday will generally be more expensive and average around $440. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Missouri?

According to our data, the cheapest time of day to fly to Missouri is in the evening. momondo users have found flights departing from Chicago O'Hare Intl Airport to Missouri in the evening for as low as $290. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Missouri are more costly in the morning, with an average ticket price of $334. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Chicago O'Hare Intl to Missouri flight route?

Fly from Chicago O'Hare Intl to Lambert-St Louis for the best Chicago O'Hare Intl - Missouri flight prices

How far in advance should I book a flight to Missouri?

You are more likely to see cheaper flights to Missouri from Chicago O'Hare Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Missouri for around $270 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Missouri from Chicago O'Hare Intl Airport for as low as $118 on momondo.

What cabin class options are available on Chicago O'Hare Intl to Missouri flights?

There are 4 cabin classes available to choose from on Chicago O'Hare Intl to Missouri flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap Chicago O'Hare Intl Airport to Missouri flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago O'Hare Intl Airport to Missouri

Best Price Found

$46

Fastest flight time

1h 17m

Direct flights

Every day

Airports in Missouri

4 airports
The best one-way flight to Missouri from Chicago O'Hare Intl Airport in the past 72 hours is $46. The best round-trip flight deal from Chicago O'Hare Intl Airport to Missouri found on momondo in the last 72 hours is $91.
The fastest flight from Chicago O'Hare Intl Airport to Missouri takes 1h 17m
Direct flights go from Chicago O'Hare Intl Airport to Missouri every day.
There are 4 airports near Missouri: Kansas City (MCI), Cape Girardeau (CGI), Columbia Regional (COU), Lambert-St Louis (STL)
Search flight deals

  • When did momondo last update prices for flights from Chicago O'Hare Intl Airport to Missouri?

    Prices for flights from Chicago O'Hare Intl Airport to Missouri are updated daily.

  • How many operators does momondo search for flights from Chicago O'Hare Intl Airport to Missouri?

  • How old do you have to be to fly from Chicago O'Hare Intl Airport to Missouri?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Chicago O'Hare Intl Airport to Missouri.

  • What documentation or ID do you need to fly to Missouri?

    The travel and health documents you'll need for your trip to Missouri may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Missouri. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Chicago O'Hare Intl Airport to Missouri?

Best airlines flying from Chicago O'Hare Intl Airport to Missouri

Compare and see reviews for airlines that fly from Chicago O'Hare Intl Airport to Missouri with momondo
Airline
Rating
Free Cancellation
Price
ContourPriceFrom $88Free CancellationRating
7.1
32 reviews
Search Contour flights
American AirlinesPriceFrom $115Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
Southern / MokulelePriceFrom $118Free CancellationRating
6.4
26 reviews
Search Southern / Mokulele flights
United AirlinesPriceFrom $153Free CancellationRating
7.4
8,917 reviews
Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Chicago to Missouri?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Chicago to Missouri. momondo saves you time and could save you money on your trip.

Can I find flights from Chicago to Missouri with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Chicago to Missouri flights to just show those with flexible booking policies.

How can momondo help me find flights from Chicago to Missouri?

momondo helps you find the best flight between Chicago and Missouri by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Chicago to Missouri right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Chicago to Missouri flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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