$59+ Cheap flights from Missouri to Illinois
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 2/19. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from Missouri to Illinois 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 Missouri to Illinois
Discover tips and strategies to find the most affordable flight options for your journey from Missouri (USMO) to Illinois (USIL). 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 enero 21, 2025.
Round-trip from | $124 (Fly & Visit Rome) |
|---|---|
One-way from | $59 (Contour) |
Good round-trip deal | $118 or less |
Good one-way deal | $84 or less |
Find flight deals from Missouri to Illinois
Cheapest flights from Missouri to IllinoisExplore the most affordable flight options available from Missouri to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on enero 21, 2025.
Explore the most affordable flight options available from Missouri to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on enero 21, 2025.
This Fly & Visit Rome 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 Fly & Visit Rome 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 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 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 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 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 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 Gotogate 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 Gotogate 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 Missouri to Illinois within your budget
Customize your flight search to find flights from Missouri to Illinois 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 enero 21, 2025.
Fly from
Fly to
Route
Depart
Return
Price
St. LouisChicago
STL - ORD
STLORD
Lambert-St Louis
jue. 2/27
12:15 pm-7:40 am
1 stop19h 25m
Chicago O'Hare Intl
lun. 3/3
8:20 pm-11:45 am
1 stop15h 25m
Cape GirardeauChicago
CGI - ORD
CGIORD
Cape Girardeau
jue. 2/20
3:45 pm-5:25 pm
Nonstop1h 40m
Chicago O'Hare Intl
dom. 2/23
5:00 pm-6:35 pm
Nonstop1h 35m
St. LouisChicago
STL - ORD
STLORD
Lambert-St Louis
vie. 2/21
5:20 pm-9:15 am
1 stop15h 55m
Chicago O'Hare Intl
mar. 2/25
3:14 pm-11:43 pm
1 stop8h 29m
St. LouisChicago
STL - ORD
STLORD
Lambert-St Louis
mié. 2/5
5:05 pm-9:27 am
1 stop16h 22m
Chicago O'Hare Intl
mié. 3/12
8:20 pm-11:45 am
1 stop15h 25m
Kansas CitySt. Louis
MCI - STL
MCISTL
Kansas City
mié. 4/2
6:25 am-7:30 am
Nonstop1h 05m
Lambert-St Louis
jue. 4/3
4:45 pm-5:55 pm
Nonstop1h 10m
St. LouisChicago
STL - MDW
STLMDW
Lambert-St Louis
jue. 2/13
9:15 pm-10:30 pm
Nonstop1h 15m
Chicago Midway
lun. 2/17
5:25 am-6:45 am
Nonstop1h 20m
St. LouisChicago
STL - ORD
STLORD
Lambert-St Louis
jue. 2/13
5:45 am-7:09 am
Nonstop1h 24m
Chicago O'Hare Intl
lun. 2/17
8:45 pm-10:03 pm
Nonstop1h 18m
St. LouisChicago
STL - MDW
STLMDW
Lambert-St Louis
lun. 2/24
5:20 pm-3:12 pm
1 stop21h 52m
Chicago Midway
sáb. 3/1
12:43 pm-11:43 pm
1 stop11h 00m
St. LouisChicago
STL - MDW
STLMDW
Lambert-St Louis
mié. 2/12
6:00 am-10:12 am
1 stop4h 12m
Chicago Midway
jue. 2/13
6:00 am-11:46 am
1 stop5h 46m
St. LouisChicago
STL - ORD
STLORD
Lambert-St Louis
mar. 2/11
1:15 pm-9:30 pm
1 stop8h 15m
Chicago O'Hare Intl
mié. 2/12
6:15 am-4:55 pm
2 stops10h 40m
Best time to book a flight from Missouri to Illinois
Have a flexible travel schedule? Discover the best time to fly to Illinois from Missouri with our price prediction graph.
Travel insights for flights from Missouri to Illinois
Get recent, data-driven insights about flights from Missouri to Illinois including ideal travel times, pricing trends, and more.
What is the cheapest month to book a flight from Missouri to Illinois?
Currently, August is the cheapest month in which you can book a flight from Missouri to Illinois (average of $245). Flying from Missouri to Illinois in March is currently the most expensive (average of $320). 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 IL?
Find hourly flight availability from Missouri to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated enero 21, 2025.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Missouri to Illinois as you normally would.
Weekly flight availability from Missouri to Illinois
Explore weekly flight availability from Missouri to Illinois. 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 enero 21, 2025.
The most flights from USMO to USIL are scheduled on a Monday (52 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (33 on average).
Rainfall in Illinois by month
Plan your trip to Illinois by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Illinois ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.
Temperature in Illinois by month
Plan your trip to Illinois by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Illinois, 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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).
Reviews of airlines servicing Illinois
Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated enero 21, 2025.
Read reviews from past customers who have flown United Airlines, Spirit Airlines and Southwest from Missouri to Illinois. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
Boarding
Crew
Entertainment
Overall
Food
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.
Comfort
Boarding
Crew
Entertainment
Overall
Food
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.
Comfort
Boarding
Crew
Entertainment
Overall
Food
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.
Comfort
Boarding
Crew
Entertainment
Overall
Food
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.
Comfort
Boarding
Crew
Entertainment
Overall
Food
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.
Comfort
Boarding
Crew
Entertainment
Overall
Food
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 Missouri to Illinois. 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 Missouri to Illinois
See prices for flight routes from nearby airports that may be better suited for you.
Top 6 airlines flying from Missouri to Illinois
Discover the top 6 airlines that operate flights from Missouri to Illinois. 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 enero 21, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$86 | Average$150 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$108 | Average$321 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$118 | Average$299 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$118 | Average$183 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$168 | Average$299 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$263 | Average$397 | FlexibilityNo cancel fee | On-timeN/A |