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O'Hare Intl

$39+ Cheap flights from Missouri to O'Hare Intl (ORD)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/25. Fares are subject to change and may not be available on all flights or dates of travel.
STL — ORD
ago. 25 — sep. 11
lun. 8/25
lun. 9/1
1 adult, Economy
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Cheap flight deals from Missouri to O'Hare Intl

Keep the following information in mind while searching for Missouri to O'Hare Intl flight deals. Data was last updated agosto 20, 2025.

Round-trip from

$91
(American Airlines)

One-way from

$39
(United Airlines)

Popular in

March

Cheapest in

September

Average price

$293

Good round-trip deal

$160 or less

Good one-way deal

$160 or less
From Missouri to Chicago O'Hare Intl
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One-way flight from Missouri to Chicago O'Hare Intl
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Highest demand for flights based on searches. 7% potential increase in price ($23 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Price to beat on a round-trip flight from Missouri to Chicago O'Hare Intl.
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Price to beat on a one-way flight from Missouri to Chicago O'Hare Intl.
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Find flight deals from Missouri to O'Hare Intl

Cheapest flights from Missouri to O'Hare Intl
Explore the most affordable flight options available from Missouri to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on agosto 20, 2025.

This American Airlines deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/176:10 amSTL - ORD
Nonstop1h 20mAmerican Airlines
mié. 9/247:10 pmORD - STL
Nonstop1h 22mAmerican Airlines
Deal found 8/18$91
This American Airlines deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/106:10 amSTL - ORD
Nonstop1h 20mAmerican Airlines
mié. 9/108:31 pmORD - STL
Nonstop1h 22mAmerican Airlines
Deal found 8/19$92
This Southwest deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/98:10 amSTL - ORD
1 stop8h 35mSouthwest
mié. 9/101:50 pmORD - STL
1 stop8h 05mSouthwest
Deal found 8/20$97
This American Airlines deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 9/137:23 amSTL - ORD
Nonstop1h 22mAmerican Airlines
mar. 9/167:10 pmORD - STL
Nonstop1h 22mAmerican Airlines
Deal found 8/17$104
This American Airlines deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/158:42 amSTL - ORD
Nonstop1h 23mAmerican Airlines
jue. 10/166:53 pmORD - STL
Nonstop1h 33mAmerican Airlines
Deal found 8/18$107
This Trip.com deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 9/195:40 amUIN - ORD
Nonstop1h 44mSouthern / Mokulele
vie. 9/261:10 pmORD - UIN
Nonstop1h 44mSouthern / Mokulele
Deal found 8/20$112
This United Airlines deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 9/197:04 pmSTL - ORD
Nonstop1h 32mUnited Airlines
mar. 9/232:20 pmORD - STL
Nonstop1h 24mUnited Airlines
Deal found 8/19$114
This United Airlines deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/153:20 pmSTL - ORD
Nonstop1h 25mUnited Airlines
lun. 9/224:55 pmORD - STL
Nonstop1h 28mUnited Airlines
Deal found 8/17$117
This Southern / Mokulele deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southern / Mokulele is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/1610:35 amUIN - ORD
Nonstop1h 44mSouthern / Mokulele
mar. 9/238:15 amORD - UIN
Nonstop1h 44mSouthern / Mokulele
Deal found 8/19$118
This American Airlines deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/116:05 amSTL - ORD
Nonstop1h 20mAmerican Airlines
lun. 9/156:59 pmORD - STL
Nonstop1h 26mAmerican Airlines
Deal found 8/18$118
This Mytrip deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/13:05 pmCGI - ORD
Nonstop1h 40mContour
sáb. 10/411:50 amORD - CGI
Nonstop1h 35mContour
Deal found 8/18$120
This American Airlines deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/16:10 amSTL - ORD
Nonstop1h 20mAmerican Airlines
vie. 10/38:31 pmORD - STL
Nonstop1h 22mAmerican Airlines
Deal found 8/19$121

Cheapflights Fare Finder

 
Customize your flight search to find flights from Missouri to O'Hare Intl 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, Cheapflights users made 2,558,603 searches. Data last updated agosto 20, 2025.
Use the filters below to find and compare flights from Missouri to Chicago O'Hare Intl Airport that are best for you.

Fly from

Missouri

Fly to

O'Hare Intl

Route

Depart

Return

Price

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

mié. 9/17

6:10 am-7:30 am

Nonstop1h 20m

Chicago O'Hare Intl

mié. 9/24

7:10 pm-8:32 pm

Nonstop1h 22m

$91

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

mié. 9/10

6:10 am-7:30 am

Nonstop1h 20m

Chicago O'Hare Intl

mié. 9/10

8:31 pm-9:53 pm

Nonstop1h 22m

$91

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

mié. 10/22

8:42 am-10:05 am

Nonstop1h 23m

Chicago O'Hare Intl

sáb. 10/25

8:40 pm-10:06 pm

Nonstop1h 26m

$91

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

sáb. 11/8

6:00 am-7:30 am

Nonstop1h 30m

Chicago O'Hare Intl

mar. 11/11

3:23 pm-4:47 pm

Nonstop1h 24m

$91

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

mié. 10/1

7:23 am-8:45 am

Nonstop1h 22m

Chicago O'Hare Intl

mié. 10/8

10:34 pm-11:54 pm

Nonstop1h 20m

$91

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

mar. 9/16

6:10 am-7:30 am

Nonstop1h 20m

Chicago O'Hare Intl

mar. 9/23

8:31 pm-9:53 pm

Nonstop1h 22m

$91

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

mar. 9/9

6:10 am-7:30 am

Nonstop1h 20m

Chicago O'Hare Intl

mié. 9/10

8:31 pm-9:53 pm

Nonstop1h 22m

$91

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

sáb. 10/4

6:10 am-7:30 am

Nonstop1h 20m

Chicago O'Hare Intl

mar. 10/7

10:34 pm-11:54 pm

Nonstop1h 20m

$91

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

sáb. 10/4

6:10 am-7:30 am

Nonstop1h 20m

Chicago O'Hare Intl

jue. 10/30

6:53 pm-8:26 pm

Nonstop1h 33m

$91

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

jue. 9/18

7:23 am-8:45 am

Nonstop1h 22m

Chicago O'Hare Intl

mar. 9/23

8:31 pm-9:53 pm

Nonstop1h 22m

$91

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/20

Showing 1-10 of 60 results
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Best time to book a flight from Missouri to O'Hare Intl

Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from Missouri with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Missouri to Chicago O'Hare Intl Airport

What is the cheapest month to book a flight from Missouri to Chicago O'Hare Intl Airport?

Currently, August is the cheapest month in which you can book a flight from Missouri to Chicago O'Hare Intl Airport (average of $245). Flying from Missouri to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $321). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from MO to ORD?

Find hourly flight availability from Missouri to O'Hare Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated agosto 20, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Missouri to Chicago O'Hare Intl Airport as you normally would.

Weekly flight availability from Missouri to Chicago O'Hare Intl Airport

Explore weekly flight availability from Missouri to O'Hare Intl. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated agosto 20, 2025.

The most flights from USMO to ORD are scheduled on a Monday (65 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (43 on average).

Related info for your journey

Find useful and relevant information for your journey from Missouri to O'Hare Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Missouri to Chicago O'Hare Intl Airport?

    Departing from Missouri to Chicago O'Hare Intl Airport will take you 1h 20m. The distance between Missouri and Chicago O'Hare Intl Airport is about 258 mi. Most flights are nonstop.

  • What are the most popular routes from Missouri to Chicago O'Hare Intl Airport?

    The most popular route from Missouri to Chicago O'Hare Intl Airport is Kansas City - Chicago O'Hare Intl. You may also consider Springfield-Branson - Chicago O'Hare Intl or Lambert-St Louis - Chicago O'Hare Intl.

  • What are the most reliable airlines from Missouri to Chicago O'Hare Intl Airport?

    No one likes to see their flight delayed. When booking a flight from Missouri to Chicago O'Hare Intl Airport consider choosing Avianca (75%), Royal Jordanian (75%) or Japan Airlines (74%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Missouri to Chicago O'Hare Intl Airport?

    Looking at all options, your cheapest flight can be booked for $112. While the most popular route (Kansas City - Chicago O'Hare Intl) can be booked for $197 on average our data indicates $1,127 when flying from Missouri to Chicago O'Hare Intl Airport.

  • Can I find deals for flights from Missouri to O'Hare Intl that include hotel bookings?

    Yes. In addition to deals on Missouri to O'Hare Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Missouri to O'Hare Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Missouri to O'Hare Intl.

  • Can I find deals for business class flights from Missouri to O'Hare Intl?

    Yes. Cheapflights offers flight deals from Missouri to O'Hare Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Missouri to Chicago O'Hare Intl Airport?

    Currently, August is the cheapest month in which you can book a flight from Missouri to Chicago O'Hare Intl Airport (average of $245). Flying from Missouri to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $321). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Chicago O'Hare Intl Airport?

Book flights to Chicago O'Hare Intl Airport if you plan to visit one of these locations
Schaumburg
Rosemont
Hoffman Estates
Beloit
Skokie
Des Plaines
Elgin
Gurnee
Arlington Heights
Racine
Rockford
Great Lakes
Orland Park
Naperville
Merrillville
Elk Grove Village
Downers Grove
Evanston
Lake Geneva
Joliet

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Alternative routes for Missouri to O'Hare Intl

See prices for flight routes from nearby airports that may be better suited for you.
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Baltimore to Midway flights
Los Angeles to Midway flights
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San Francisco to Midway flights
LaGuardia to Midway flights
Hobby to O'Hare Intl flights
Fort Lauderdale to O'Hare Intl flights
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Philadelphia to Midway flights
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Minneapolis to O'Hare Intl flights
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Reagan-National to Midway flights
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Austin to Midway flights
Love Field to O'Hare Intl flights

Top 4 airlines flying from Missouri to O'Hare Intl

Discover the top 4 airlines that operate flights from Missouri to O'Hare Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated agosto 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
ContourCheapest$106Average$162FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$115Average$310FlexibilityNo cancel feeOn-time71%
Southern / MokuleleCheapest$125Average$204FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$151Average$323FlexibilityNo cancel feeOn-time69%

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