$53+ Cheap flights from Illinois 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 2/24. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from Illinois to Missouri with Cheapflights
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 Illinois to Missouri
Discover tips and strategies to find the most affordable flight options for your journey from Illinois (USIL) to Missouri (USMO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 21, 2025.
Round-trip from | $118 (Contour) |
|---|---|
One-way from | $53 (Mytrip) |
Good round-trip deal | $181 or less |
Good one-way deal | $44 or less |
Find flight deals from Illinois to Missouri
Cheapest flights from Illinois to MissouriExplore the most affordable flight options available from Illinois to Missouri. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 21, 2025.
Explore the most affordable flight options available from Illinois to Missouri. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 21, 2025.
This Contour deal was found by Cheapflights users on 1/19. 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 Contour is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Mytrip deal was found by Cheapflights users on 1/21. 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.
This Southwest deal was found by Cheapflights users on 1/21. 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.
This American Airlines deal was found by Cheapflights users on 1/21. 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.
This FlightHub deal was found by Cheapflights users on 1/20. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This CheapOair deal was found by Cheapflights users on 1/20. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Delta deal was found by Cheapflights users on 1/21. 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.
This Delta deal was found by Cheapflights users on 1/21. 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.
This Trip.com deal was found by Cheapflights users on 1/20. 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.
This Mytrip deal was found by Cheapflights users on 1/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This United Airlines deal was found by Cheapflights users on 1/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This American Airlines deal was found by Cheapflights users on 1/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Find flights from Illinois to Missouri within your budget
Customize your flight search to find flights from Illinois 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 January 21, 2025.
Fly from
Fly to
Route
Depart
Return
Price
ChicagoCape Girardeau
ORD - CGI
ORDCGI
Chicago O'Hare Intl
Tue 2/18
11:25 am-1:00 pm
Nonstop1h 35m
Cape Girardeau
Tue 2/25
8:40 am-10:20 am
Nonstop1h 40m
ChicagoSt. Louis
ORD - STL
ORDSTL
Chicago O'Hare Intl
Thu 2/27
8:25 am-8:10 pm
1 stop11h 45m
Lambert-St Louis
Mon 3/3
12:15 pm-3:50 pm
1 stop3h 35m
ChicagoSt. Louis
MDW - STL
MDWSTL
Chicago Midway
Thu 2/13
5:25 am-6:45 am
Nonstop1h 20m
Lambert-St Louis
Mon 2/17
9:15 pm-10:30 pm
Nonstop1h 15m
ChicagoSt. Louis
ORD - STL
ORDSTL
Chicago O'Hare Intl
Sun 2/23
8:20 pm-11:45 am
1 stop15h 25m
Lambert-St Louis
Sat 3/1
8:52 pm-5:05 am
1 stop8h 13m
ChicagoSt. Louis
ORD - STL
ORDSTL
Chicago O'Hare Intl
Sun 2/9
10:59 am-11:31 pm
1 stop12h 32m
Lambert-St Louis
Wed 2/26
7:04 pm-1:25 pm
1 stop18h 21m
ChicagoSt. Louis
MDW - STL
MDWSTL
Chicago Midway
Thu 2/13
10:57 am-3:34 pm
1 stop4h 37m
Lambert-St Louis
Mon 2/17
6:00 am-12:42 pm
1 stop6h 42m
ChicagoSt. Louis
ORD - STL
ORDSTL
Chicago O'Hare Intl
Thu 4/24
10:50 am-12:20 pm
Nonstop1h 30m
Lambert-St Louis
Mon 4/28
9:39 am-11:10 am
Nonstop1h 31m
ChicagoSt. Louis
MDW - STL
MDWSTL
Chicago Midway
Mon 3/3
12:43 pm-11:43 pm
1 stop11h 00m
Lambert-St Louis
Mon 3/10
10:36 am-7:35 pm
1 stop8h 59m
ChicagoSpringfield
ORD - SGF
ORDSGF
Chicago O'Hare Intl
Wed 2/19
12:45 pm-2:34 pm
Nonstop1h 49m
Springfield-Branson
Sat 3/1
3:20 pm-5:05 pm
Nonstop1h 45m
ChicagoSpringfield
ORD - SGF
ORDSGF
Chicago O'Hare Intl
Thu 2/13
10:00 am-11:43 am
Nonstop1h 43m
Springfield-Branson
Sun 2/16
5:15 pm-6:57 pm
Nonstop1h 42m
Best time to book a flight from Illinois to Missouri
Have a flexible travel schedule? Discover the best time to fly to Missouri from Illinois with our price prediction graph.
Travel insights for flights from Illinois to Missouri
Get recent, data-driven insights about flights from Illinois to Missouri including ideal travel times, pricing trends, and more.
What is the cheapest month to book a flight from Illinois to Missouri?
Currently, August is the cheapest month in which you can book a flight from Illinois to Missouri (average of $311). Flying from Illinois 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 IL to MO?
Find hourly flight availability from Illinois 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 January 21, 2025.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Missouri as you normally would.
Weekly flight availability from Illinois to Missouri
Explore weekly flight availability from Illinois 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 January 21, 2025.
The most flights from USIL to USMO are scheduled on a Monday (49 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (39 on average).
Rainfall in Missouri by month
Plan your trip to Missouri by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Missouri ranges from 1.1 - 5.2 inches per month. May is typically the wettest month, when rainfall can reach 5.2 in. January is typically the driest time to visit Missouri when rainfall is around 1.1 in.
Temperature in Missouri by month
Plan your trip to Missouri by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Missouri, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 28.4 F).
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 January 21, 2025.
Get a feel of what it's like to fly with Frontier, United Airlines and Spirit Airlines from Illinois to Missouri by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
Comfort
Food
Overall
Entertainment
Crew
Reviews
We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.
Boarding
Comfort
Food
Overall
Entertainment
Crew
Reviews
We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.
Boarding
Comfort
Food
Overall
Entertainment
Crew
Reviews
We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.
Boarding
Comfort
Food
Overall
Entertainment
Crew
Reviews
We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.
Boarding
Comfort
Food
Overall
Entertainment
Crew
Reviews
We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.
Boarding
Comfort
Food
Overall
Entertainment
Crew
Reviews
We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.
Related info for your journey
Find useful and relevant information for your journey from Illinois to Missouri. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Illinois to Missouri
See prices for flight routes from nearby airports that may be better suited for you.
Top 5 airlines flying from Illinois to Missouri
Discover the top 5 airlines that operate flights from Illinois 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 January 21, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$88 | Average$128 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$108 | Average$312 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$115 | Average$329 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$116 | Average$353 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$117 | Average$178 | FlexibilityNo cancel fee | On-timeN/A |