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$49+ Cheap flights from O'Hare Intl (ORD) to Missouri

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 10/21. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — STL
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheap flight deals from O'Hare Intl to Missouri

Keep the following information in mind while searching for O'Hare Intl to Missouri flight deals. Data was last updated September 17, 2025.

Round-trip from

$97
(United Airlines)

One-way from

$49
(United Airlines)

Popular in

December

Cheapest in

October

Average price

$308

Good round-trip deal

$138 or less

Good one-way deal

$81 or less
From Chicago O'Hare Intl to Missouri
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One-way flight from Chicago O'Hare Intl to Missouri
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Highest demand for flights based on searches. 0% potential increase in price ($3 potential increase over avg. RT price).
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Cheapest flight prices on average. 0% potential price decrease ($3 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Chicago O'Hare Intl to Missouri.
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Price to beat on a one-way flight from Chicago O'Hare Intl to Missouri.
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Find flight deals from O'Hare Intl to Missouri

Cheapest flights from O'Hare Intl to Missouri
Explore the most affordable flight options available from O'Hare Intl to Missouri. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.

This United Airlines deal was found by Cheapflights users on 9/16. 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.
Tue 10/142:20 pmORD - STL
Nonstop1h 24mUnited Airlines
Tue 10/213:23 pmSTL - ORD
Nonstop1h 25mUnited Airlines
Deal found 9/16$97
This American Airlines deal was found by Cheapflights users on 9/16. 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.
Thu 10/96:53 pmORD - STL
Nonstop1h 33mAmerican Airlines
Mon 10/136:00 amSTL - ORD
Nonstop1h 23mAmerican Airlines
Deal found 9/16$98
This Southwest deal was found by Cheapflights users on 9/15. 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.
Tue 10/71:30 pmORD - STL
1 stop7h 15mSouthwest
Wed 10/222:55 pmSTL - ORD
1 stop6h 35mSouthwest
Deal found 9/15$117
This Southwest deal was found by Cheapflights users on 9/14. 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.
Sat 10/257:00 amORD - STL
1 stop5h 30mSouthwest
Sat 10/251:45 pmSTL - ORD
2 stops8h 15mSouthwest
Deal found 9/14$122
This American Airlines deal was found by Cheapflights users on 9/15. 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.
Tue 10/216:53 pmORD - STL
Nonstop1h 33mAmerican Airlines
Fri 10/247:16 amSTL - ORD
Nonstop1h 27mAmerican Airlines
Deal found 9/15$134
This Frontier deal was found by Cheapflights users on 9/16. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/315:25 amORD - STL
1 stop7h 52mFrontier
Fri 10/314:52 pmSTL - ORD
1 stop6h 47mFrontier
Deal found 9/16$139
This Priceline deal was found by Cheapflights users on 9/15. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/295:10 amORD - STL
1 stop9h 54mFrontier
Thu 10/24:00 pmSTL - ORD
1 stop7h 39mFrontier
Deal found 9/15$143
This Priceline deal was found by Cheapflights users on 9/16. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/255:10 amORD - STL
1 stop9h 54mFrontier
Mon 9/294:00 pmSTL - ORD
1 stop8h 10mFrontier
Deal found 9/16$144
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Mon 10/202:20 pmORD - STL
Nonstop1h 24mUnited Airlines
Wed 10/226:30 amSTL - ORD
Nonstop1h 30mUnited Airlines
Deal found 9/15$146
This eDestinos deal was found by Cheapflights users on 9/15. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/17:20 amORD - STL
1 stop25h 46mFrontier
Thu 10/24:00 pmSTL - ORD
1 stop7h 39mFrontier
Deal found 9/15$155
This Booking.com deal was found by Cheapflights users on 9/16. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/295:10 amORD - STL
1 stop9h 54mFrontier
Sat 10/47:55 pmSTL - ORD
1 stop13h 42mFrontier
Deal found 9/16$156
This Contour deal was found by Cheapflights users on 9/16. 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 Contour is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/84:30 pmORD - CGI
Nonstop1h 35mContour
Mon 10/139:30 amCGI - ORD
Nonstop1h 40mContour
Deal found 9/16$158

Cheapflights Fare Finder

 
Customize your flight search to find flights from O'Hare Intl 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, Cheapflights users made 2,558,603 searches. Data last updated September 17, 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

O'Hare Intl

Fly to

Missouri

Route

Depart

Return

Price

ChicagoSt. Louis

ORD - STL

ORDSTL

Chicago O'Hare Intl

Wed 10/22

9:25 am-10:49 am

Nonstop1h 24m

Lambert-St Louis

Thu 10/23

5:00 am-6:30 am

Nonstop1h 30m

$97

ChicagoSt. Louis

ORD - STL

ORDSTL

Chicago O'Hare Intl

Tue 10/14

2:20 pm-3:44 pm

Nonstop1h 24m

Lambert-St Louis

Tue 10/21

3:23 pm-4:48 pm

Nonstop1h 25m

$97

ChicagoSt. Louis

ORD - STL

ORDSTL

Chicago O'Hare Intl

Tue 10/28

3:10 pm-10:05 pm

1 stop6h 55m

Lambert-St Louis

Thu 10/30

5:00 am-10:45 am

1 stop5h 45m

$117

ChicagoSt. Louis

ORD - STL

ORDSTL

Chicago O'Hare Intl

Tue 10/7

3:10 pm-10:05 pm

1 stop6h 55m

Lambert-St Louis

Wed 10/22

2:55 pm-9:30 pm

1 stop6h 35m

$117

ChicagoSt. Louis

ORD - STL

ORDSTL

Chicago O'Hare Intl

Wed 10/15

3:10 pm-10:05 pm

1 stop6h 55m

Lambert-St Louis

Wed 10/22

7:45 am-2:00 pm

1 stop6h 15m

$117

ChicagoSt. Louis

ORD - STL

ORDSTL

Chicago O'Hare Intl

Tue 10/14

3:10 pm-10:05 pm

1 stop6h 55m

Lambert-St Louis

Tue 10/21

6:55 am-12:45 pm

1 stop5h 50m

$117

ChicagoSt. Louis

ORD - STL

ORDSTL

Chicago O'Hare Intl

Wed 10/22

6:45 am-8:09 am

Nonstop1h 24m

Lambert-St Louis

Fri 10/24

6:00 am-7:23 am

Nonstop1h 23m

$134

ChicagoSt. Louis

ORD - STL

ORDSTL

Chicago O'Hare Intl

Mon 10/20

2:20 pm-3:44 pm

Nonstop1h 24m

Lambert-St Louis

Wed 10/22

6:30 am-8:00 am

Nonstop1h 30m

$146

ChicagoSt. Louis

ORD - STL

ORDSTL

Chicago O'Hare Intl

Thu 10/16

1:03 pm-2:27 pm

Nonstop1h 24m

Lambert-St Louis

Sat 10/18

6:30 am-8:00 am

Nonstop1h 30m

$157

ChicagoCape Girardeau

ORD - CGI

ORDCGI

Chicago O'Hare Intl

Wed 10/8

4:30 pm-6:05 pm

Nonstop1h 35m

Cape Girardeau

Mon 10/13

9:30 am-11:10 am

Nonstop1h 40m

$158

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

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

Have a flexible travel schedule? Discover the best time to fly to Missouri from O'Hare Intl 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 Chicago O'Hare Intl Airport to Missouri

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

Currently, August is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Missouri (average of $311). Flying from Chicago O'Hare Intl Airport to Missouri in March is currently the most expensive (average of $356). 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 ORD to MO?

Find hourly flight availability from O'Hare Intl to Missouri. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 17, 2025.

When flying from Chicago O'Hare Intl Airport to Missouri, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

Explore weekly flight availability from O'Hare Intl to Missouri. 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 September 17, 2025.

The most flights from ORD to USMO are scheduled on a Monday (71 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (46 on average).

Reviews of airlines servicing Missouri

Get insights into the airlines that provide service to Missouri. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Missouri. Reviews last updated September 17, 2025.
Peruse reviews from past customers who have flown with United Airlines, American Airlines, and Contour from Chicago O'Hare Intl Airport to Missouri to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,926 reviews

Entertainment

7.1

Comfort

7.3

Overall

7.4

Crew

8.1

Boarding

7.7

Food

6.6

Reviews

1 / 20
10.0
Excellent

Julia,Sep 2025

BUF - DEN

The staff were amazing, from check in to boarding and on the flight. The range of entertainment options were really good as well.
United Airlines
7.4
Good
8,926 reviews
United Airlines
7.4
Good
8,926 reviews

Entertainment

7.1

Comfort

7.3

Overall

7.4

Crew

8.1

Boarding

7.7

Food

6.6

Reviews

1 / 20
10.0
Excellent

Julia,Sep 2025

BUF - DEN

The staff were amazing, from check in to boarding and on the flight. The range of entertainment options were really good as well.
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,926 reviews

Entertainment

7.1

Comfort

7.3

Overall

7.4

Crew

8.1

Boarding

7.7

Food

6.6

Reviews

1 / 20
10.0
Excellent

Julia,Sep 2025

BUF - DEN

The staff were amazing, from check in to boarding and on the flight. The range of entertainment options were really good as well.
Contour
7.2
Good
36 reviews
United Airlines
7.4
Good
8,926 reviews

Entertainment

7.1

Comfort

7.3

Overall

7.4

Crew

8.1

Boarding

7.7

Food

6.6

Reviews

1 / 20
10.0
Excellent

Julia,Sep 2025

BUF - DEN

The staff were amazing, from check in to boarding and on the flight. The range of entertainment options were really good as well.

Related info for your journey

Find useful and relevant information for your journey from O'Hare Intl to Missouri. 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 Chicago O'Hare Intl Airport to Missouri?

    Airlines like United Airlines, Southwest, and Contour fly from Chicago O'Hare Intl Airport to Missouri in about 1h 24m. The time it takes to get you to your destination can typically vary by up to 5h 31m. Chicago O'Hare Intl Airport and Missouri are separated by a distance of 258 mi. This flight may include one or multiple stops.

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

    The most popular flight routes from Chicago O'Hare Intl Airport to Missouri are Chicago O'Hare Intl - Kansas City, Chicago O'Hare Intl - Lambert-St Louis and Chicago O'Hare Intl - Springfield-Branson.

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Chicago O'Hare Intl Airport to Missouri on time: SkyWest Airlines (81%), ANA (76%), Envoy Air (73%).

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

    Looking at all options, your cheapest flight can be booked for $48. While the most popular route (Chicago O'Hare Intl - Kansas City) can be booked for $154 on average, our data indicates $279 when flying from Chicago O'Hare Intl Airport to Missouri.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from O'Hare Intl to Missouri 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 Chicago O'Hare Intl Airport to Missouri?

    Currently, August is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Missouri (average of $311). Flying from Chicago O'Hare Intl Airport to Missouri in March is currently the most expensive (average of $356). 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

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Alternative routes for O'Hare Intl to Missouri

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from O'Hare Intl to Missouri

Discover the top 4 airlines that operate flights from O'Hare Intl to Missouri. 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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
ContourCheapest$114Average$184FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$116Average$333FlexibilityNo cancel feeOn-time71%
Southern / MokuleleCheapest$118Average$221FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$152Average$338FlexibilityNo cancel feeOn-time69%

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