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O'Hare Intl

$49+ 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
oct. 17 — oct. 241
vie. 10/17
vie. 10/24
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 septiembre 17, 2025.

Round-trip from

$97
(United Airlines)

One-way from

$49
(United Airlines)

Popular in

March

Cheapest in

September

Average price

$254

Good round-trip deal

$138 or less

Good one-way deal

$61 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. 2% potential price decrease ($6 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 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 septiembre 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.
mié. 10/155:00 amSTL - ORD
Nonstop1h 30mUnited Airlines
mié. 10/229:25 amORD - STL
Nonstop1h 24mUnited Airlines
Deal found 9/16$97
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.
jue. 10/237:16 amSTL - ORD
Nonstop1h 27mAmerican Airlines
lun. 10/2710:34 pmORD - STL
Nonstop1h 20mAmerican Airlines
Deal found 9/15$98
This Southern / Mokulele 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 Southern / Mokulele is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/305:40 amUIN - ORD
Nonstop1h 44mSouthern / Mokulele
sáb. 10/41:10 pmORD - UIN
Nonstop1h 44mSouthern / Mokulele
Deal found 9/15$108
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.
jue. 10/165:00 amSTL - ORD
Nonstop1h 30mUnited Airlines
mar. 11/112:21 pmORD - STL
Nonstop1h 26mUnited Airlines
Deal found 9/16$114
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/156:55 amSTL - ORD
1 stop5h 50mSouthwest
mié. 10/227:30 amORD - STL
1 stop7h 15mSouthwest
Deal found 9/16$117
This Southern / Mokulele 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 Southern / Mokulele is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/172:35 pmUIN - ORD
Nonstop1h 44mSouthern / Mokulele
dom. 10/198:15 amORD - UIN
Nonstop1h 44mSouthern / Mokulele
Deal found 9/16$118
This Southwest deal was found by Cheapflights users on 9/17. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/141:30 pmSTL - ORD
1 stop9h 35mSouthwest
mar. 10/211:30 pmORD - STL
1 stop7h 15mSouthwest
Deal found 9/17$122
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.
vie. 10/2412:25 pmSTL - ORD
Nonstop1h 25mUnited Airlines
sáb. 11/81:00 pmORD - STL
Nonstop1h 25mUnited Airlines
Deal found 9/16$134
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.
lun. 9/294:00 pmSTL - ORD
1 stop8h 10mFrontier
jue. 10/25:10 amORD - STL
1 stop9h 54mFrontier
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.
jue. 9/254:00 pmSTL - ORD
1 stop8h 10mFrontier
lun. 9/295:10 amORD - STL
1 stop9h 54mFrontier
Deal found 9/16$144
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/231:41 pmSTL - ORD
1 stop17h 53mFrontier
lun. 10/2710:51 amORD - STL
1 stop22h 16mFrontier
Deal found 9/15$145
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.
lun. 10/135:28 pmSTL - ORD
Nonstop1h 25mUnited Airlines
lun. 10/202:20 pmORD - STL
Nonstop1h 24mUnited Airlines
Deal found 9/15$146

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 septiembre 17, 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. 10/15

5:00 am-6:30 am

Nonstop1h 30m

Chicago O'Hare Intl

mié. 10/22

9:25 am-10:49 am

Nonstop1h 24m

$97

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

mié. 10/15

5:00 am-6:30 am

Nonstop1h 30m

Chicago O'Hare Intl

mié. 10/15

1:03 pm-2:27 pm

Nonstop1h 24m

$97

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

mié. 10/15

12:25 pm-1:50 pm

Nonstop1h 25m

Chicago O'Hare Intl

jue. 10/16

2:20 pm-3:44 pm

Nonstop1h 24m

$97

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

mar. 10/14

6:30 am-8:00 am

Nonstop1h 30m

Chicago O'Hare Intl

mar. 10/21

9:25 am-10:49 am

Nonstop1h 24m

$97

QuincyChicago

UIN - ORD

UINORD

Quincy Regional

vie. 12/12

9:50 am-11:10 am

Nonstop1h 20m

Chicago O'Hare Intl

lun. 1/12

2:00 pm-3:20 pm

Nonstop1h 20m

$108

QuincyChicago

UIN - ORD

UINORD

Quincy Regional

mar. 9/30

5:40 am-7:24 am

Nonstop1h 44m

Chicago O'Hare Intl

sáb. 10/4

1:10 pm-2:54 pm

Nonstop1h 44m

$108

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

mié. 10/15

6:55 am-12:45 pm

1 stop5h 50m

Chicago O'Hare Intl

mié. 10/22

3:10 pm-10:05 pm

1 stop6h 55m

$117

QuincyChicago

UIN - ORD

UINORD

Quincy Regional

vie. 10/17

2:35 pm-4:19 pm

Nonstop1h 44m

Chicago O'Hare Intl

dom. 10/19

8:15 am-9:59 am

Nonstop1h 44m

$118

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

mar. 10/14

1:30 pm-11:05 pm

1 stop9h 35m

Chicago O'Hare Intl

mar. 10/21

1:30 pm-8:45 pm

1 stop7h 15m

$122

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

jue. 11/20

8:25 am-12:15 pm

1 stop3h 50m

Chicago O'Hare Intl

jue. 11/20

1:45 pm-10:10 pm

1 stop8h 25m

$122

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

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 septiembre 17, 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 septiembre 17, 2025.

The most flights from USMO to ORD are scheduled on a Monday (73 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (55 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 222 mi. Most flights are nonstop.

  • What are the cheapest airlines to fly from Missouri to Chicago O'Hare Intl Airport one-way?

    $49 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on American Airlines and Contour, with prices starting from $49 and $73, respectively.

  • 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 Lambert-St Louis - Chicago O'Hare Intl or Springfield-Branson - 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 Cathay Pacific (89%), Japan Airlines (80%) or Copa Airlines (78%) 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 $75. While the most popular route (Kansas City - Chicago O'Hare Intl) can be booked for $197 on average, our data indicates $706 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
Skokie
Gurnee
Hoffman Estates
Des Plaines
Elgin
Arlington Heights
Orland Park
Beloit
Racine
Rockford
Oak Brook
Elk Grove Village
Downers Grove
Naperville
Evanston
Merrillville
Bridgeview
Warrenville

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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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Seattle to O'Hare Intl flights
Reagan-National to O'Hare Intl flights
Dallas/Fort Worth to Midway flights
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Boston to O'Hare Intl flights
John F Kennedy Intl to Midway flights
Philadelphia to O'Hare Intl flights
Denver to O'Hare Intl flights
Ontario to O'Hare Intl flights
Baltimore to Midway flights
Newark to Midway flights
Santa Ana to O'Hare Intl flights
Atlanta to Midway flights
LaGuardia to Midway flights
Los Angeles to Midway flights
Dulles Intl to Midway flights
Hobby to O'Hare Intl flights
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Philadelphia to Midway flights
Sky Harbor Intl to O'Hare Intl flights
Austin to O'Hare Intl flights
Charlotte to O'Hare Intl flights
Denver to Midway flights
San Francisco to Midway flights
George Bush Intcntl to O'Hare Intl flights
Burbank to O'Hare Intl flights
Raleigh to O'Hare Intl flights
San Jose to O'Hare Intl flights
Providence to O'Hare Intl flights
Miami to O'Hare Intl flights
Hobby to Midway flights
Portland to O'Hare Intl flights
Orlando to O'Hare Intl flights
Seattle to Midway flights
Cleveland to O'Hare Intl flights
Fort Lauderdale to O'Hare Intl flights
Boston to Midway flights
Minneapolis to Midway flights
Love Field to O'Hare Intl flights
Reagan-National to Midway flights
Hartford to O'Hare Intl flights
Tampa 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 septiembre 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$117Average$307FlexibilityNo cancel feeOn-time71%
ContourCheapest$123Average$163FlexibilityNo cancel feeOn-timeN/A
Southern / MokuleleCheapest$140Average$217FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$143Average$335FlexibilityNo cancel feeOn-time69%

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