$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 9/1. Fares are subject to change and may not be available on all flights or dates of travel.
STL — ORD
Jul 8 — Jul 151
1 adult, Economy
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1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.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 July 3, 2025.
Round-trip from | $91 (American Airlines) |
|---|---|
One-way from | $49 (American Airlines) |
Popular in | March |
Cheapest in | September |
Average price | $309 |
Good round-trip deal | $138 or less |
Good one-way deal | $221 or less |
Find flight deals from Missouri to O'Hare Intl
Cheapest flights from Missouri to O'Hare IntlExplore 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 July 3, 2025.
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 July 3, 2025.
This American Airlines deal was found by Cheapflights users on 7/3. 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.
Sat 8/97:44 pmSTL - ORD
Nonstop1h 31mAmerican Airlines
Tue 8/127:00 pmORD - STL
Nonstop1h 25mAmerican Airlines
Deal found 7/3![American Airlines logo]()
$91
This Trip.com deal was found by Cheapflights users on 7/3. 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.
Sat 8/25:40 amUIN - ORD
Nonstop1h 57mSouthern / Mokulele
Sat 8/91:10 pmORD - UIN
Nonstop1h 55mSouthern / Mokulele
Deal found 7/3![Southern / Mokulele logo]()
$111
This Southwest deal was found by Cheapflights users on 7/1. 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 8/122:25 pmSTL - ORD
1 stop7h 05mSouthwest
Tue 8/267:30 amORD - STL
1 stop7h 00mSouthwest
Deal found 7/1![Southwest logo]()
$111
This Priceline deal was found by Cheapflights users on 7/3. 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 9/114:00 pmSTL - ORD
1 stop8h 10mFrontier
Sun 9/145:10 amORD - STL
1 stop9h 54mFrontier
Deal found 7/3![Frontier logo]()
$112
This Mytrip deal was found by Cheapflights users on 7/3. 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.
Thu 8/73:45 pmCGI - ORD
Nonstop1h 40mContour
Wed 8/1311:25 amORD - CGI
Nonstop1h 35mContour
Deal found 7/3![Contour logo]()
$123
This United Airlines deal was found by Cheapflights users on 7/1. 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.
Thu 7/318:00 amSTL - ORD
Nonstop1h 25mUnited Airlines
Thu 8/79:20 pmORD - STL
Nonstop1h 25mUnited Airlines
Deal found 7/1![United Airlines logo]()
$124
This Jettzy deal was found by Cheapflights users on 6/30. 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 Jettzy is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/21:00 pmSTL - ORD
1 stop18h 37mSouthern / Mokulele
Mon 8/48:15 amORD - STL
1 stop3h 55mSouthern / Mokulele
Deal found 6/30![Southern / Mokulele logo]()
$165
This Priceline deal was found by Cheapflights users on 7/2. 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.
Fri 9/194:56 pmMCI - ORD
1 stop7h 14mFrontier
Mon 9/226:00 amORD - MCI
1 stop7h 48mFrontier
Deal found 7/2![Frontier logo]()
$174
This Delta deal was found by Cheapflights users on 7/3. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/910:30 amSTL - ORD
1 stop6h 03mDelta
Tue 8/127:05 amORD - STL
1 stop7h 36mDelta
Deal found 7/3![Delta logo]()
$177
This American Airlines deal was found by Cheapflights users on 7/1. 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 10/217:52 pmCOU - ORD
Nonstop1h 30mAmerican Airlines
Tue 10/285:56 pmORD - COU
Nonstop1h 26mAmerican Airlines
Deal found 7/1![American Airlines logo]()
$179
This FlightHub deal was found by Cheapflights users on 7/2. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/262:52 pmSTL - ORD
1 stop8h 37mMultiple Airlines
Tue 7/291:10 pmORD - STL
1 stop3h 35mMultiple Airlines
Deal found 7/2![Multiple Airlines logo]()
$180
This American Airlines deal was found by Cheapflights users on 7/1. 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 7/297:00 amMCI - ORD
Nonstop1h 43mAmerican Airlines
Tue 8/56:59 pmORD - MCI
Nonstop1h 42mAmerican Airlines
Deal found 7/1![American Airlines logo]()
$184
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 July 3, 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
Sat 8/9
7:44 pm-9:15 pm
Nonstop1h 31m
Chicago O'Hare Intl
Tue 8/12
7:00 pm-8:25 pm
Nonstop1h 25m
$91
QuincyChicago
UIN - ORD
UINORD
Quincy Regional
Sat 8/2
5:40 am-7:37 am
Nonstop1h 57m
Chicago O'Hare Intl
Sat 8/9
1:10 pm-3:05 pm
Nonstop1h 55m
$111
St. LouisChicago
STL - ORD
STLORD
Lambert-St Louis
Tue 8/12
2:25 pm-9:30 pm
1 stop7h 05m
Chicago O'Hare Intl
Tue 8/26
7:30 am-2:30 pm
1 stop7h 00m
$111
St. LouisChicago
STL - ORD
STLORD
Lambert-St Louis
Thu 9/11
4:00 pm-12:10 am
1 stop8h 10m
Chicago O'Hare Intl
Sun 9/14
5:10 am-3:04 pm
1 stop9h 54m
$112
Cape GirardeauChicago
CGI - ORD
CGIORD
Cape Girardeau
Thu 8/7
3:45 pm-5:25 pm
Nonstop1h 40m
Chicago O'Hare Intl
Wed 8/13
11:25 am-1:00 pm
Nonstop1h 35m
$123
St. LouisChicago
STL - ORD
STLORD
Lambert-St Louis
Thu 7/31
8:00 am-9:25 am
Nonstop1h 25m
Chicago O'Hare Intl
Thu 8/7
9:20 pm-10:45 pm
Nonstop1h 25m
$124
St. LouisChicago
STL - ORD
STLORD
Lambert-St Louis
Sat 8/2
1:00 pm-7:37 am
1 stop18h 37m
Chicago O'Hare Intl
Mon 8/4
8:15 am-12:10 pm
1 stop3h 55m
$165
Kansas CityChicago
MCI - ORD
MCIORD
Kansas City
Fri 9/19
4:56 pm-12:10 am
1 stop7h 14m
Chicago O'Hare Intl
Mon 9/22
6:00 am-1:48 pm
1 stop7h 48m
$174
St. LouisChicago
STL - ORD
STLORD
Lambert-St Louis
Sat 8/9
10:30 am-4:33 pm
1 stop6h 03m
Chicago O'Hare Intl
Tue 8/12
7:05 am-2:41 pm
1 stop7h 36m
$177
St. LouisChicago
STL - ORD
STLORD
Lambert-St Louis
Sat 7/26
2:52 pm-11:29 pm
1 stop8h 37m
Chicago O'Hare Intl
Tue 7/29
1:10 pm-4:45 pm
1 stop3h 35m
$180
Showing 1-10 of 43 results
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 July 3, 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 July 3, 2025.
The most flights from USMO to ORD are scheduled on a Wednesday (63 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (11 on average).
Reviews of airlines servicing O'Hare Intl
Get insights into the airlines that provide service to O'Hare Intl. 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 O'Hare Intl. Reviews last updated July 3, 2025.
Peruse reviews from past customers who have flown with Southwest, Delta, and United Airlines from Missouri to Chicago O'Hare Intl Airport to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.6
Crew
8.6
Food
7.0
Comfort
8.0
Boarding
8.2
Overall
8.0
Reviews
1 / 20
8.0
ExcellentJohn,May 2025
PVD - BNA
Entertainment
7.6
Crew
8.6
Food
7.0
Comfort
8.0
Boarding
8.2
Overall
8.0
Reviews
1 / 20
8.0
ExcellentJohn,May 2025
PVD - BNA
Entertainment
7.6
Crew
8.6
Food
7.0
Comfort
8.0
Boarding
8.2
Overall
8.0
Reviews
1 / 20
8.0
ExcellentJohn,May 2025
PVD - BNA
Entertainment
7.6
Crew
8.6
Food
7.0
Comfort
8.0
Boarding
8.2
Overall
8.0
Reviews
1 / 20
8.0
ExcellentJohn,May 2025
PVD - BNA
Entertainment
7.6
Crew
8.6
Food
7.0
Comfort
8.0
Boarding
8.2
Overall
8.0
Reviews
1 / 20
8.0
ExcellentJohn,May 2025
PVD - BNA
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.
Traveling to a place near Missouri?
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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.
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 July 3, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$86 | Average$160 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$115 | Average$302 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$118 | Average$190 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$133 | Average$328 | FlexibilityNo cancel fee | On-time69% |