$308+ Cheap flights from Monroe (MLU) to Illinois
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/6. Fares are subject to change and may not be available on all flights or dates of travel.
MLU — ORD
Sep 12 — Sep 191
Round-trip
1 adult, Economy
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Find cheap flights from Monroe to Illinois with Cheapflights
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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
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Cheapest flights from Monroe to IllinoisExplore the most affordable flight options available from Monroe to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 13, 2026.
Explore the most affordable flight options available from Monroe to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 13, 2026.
This Delta deal was found by Cheapflights users on 8/9. 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.
Sun 9/66:07 am -
1 stop6h 33m
Sat 9/125:30 am -
1 stop6h 43m
Deal found 8/9![Delta logo]()
$308
This American Airlines deal was found by Cheapflights users on 8/10. 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 8/251:44 pm -
1 stop5h 58m
Sat 8/297:00 am -
1 stop6h 14m
Deal found 8/10![American Airlines logo]()
$348
This Delta deal was found by Cheapflights users on 8/10. 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.
Tue 8/2512:58 pm -
1 stop7h 57m
Sat 8/292:30 pm -
2 stops7h 42m
Deal found 8/10![Delta logo]()
$354
This Delta deal was found by Cheapflights users on 8/9. 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.
Tue 9/812:53 pm -
2 stops7h 37m
Tue 9/1511:17 am -
2 stops11h 00m
Deal found 8/9![Delta logo]()
$359
This American Airlines deal was found by Cheapflights users on 8/8. 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.
Sun 8/161:44 pm -
1 stop7h 32m
Sat 8/226:00 am -
1 stop7h 14m
Deal found 8/8![American Airlines logo]()
$383
This Delta deal was found by Cheapflights users on 8/8. 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.
Sun 8/165:48 pm -
1 stop6h 09m
Sat 8/2212:29 pm -
2 stops9h 43m
Deal found 8/8![Delta logo]()
$389
This American Airlines deal was found by Cheapflights users on 8/11. 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 10/156:48 pm -
1 stop5h 11m
Sun 10/188:14 am -
1 stop5h 04m
Deal found 8/11![American Airlines logo]()
$492
This American Airlines deal was found by Cheapflights users on 8/12. 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.
Wed 11/256:40 pm -
1 stop5h 21m
Sat 11/283:00 pm -
1 stop7h 35m
Deal found 8/12![American Airlines logo]()
$511
This American Airlines deal was found by Cheapflights users on 8/9. 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 8/1310:18 am -
1 stop8h 11m
Sat 8/157:00 am -
1 stop6h 14m
Deal found 8/9![American Airlines logo]()
$538
Best flights from Monroe to IllinoisDiscover carefully curated flight deals from Monroe to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 13, 2026.
Discover carefully curated flight deals from Monroe to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 13, 2026.
This Delta deal was found by Cheapflights users on 8/9. 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.
Sun 9/66:07 am -
1 stop6h 33m
Sat 9/125:30 am -
1 stop6h 43m
Deal found 8/9![Delta logo]()
$308
This American Airlines deal was found by Cheapflights users on 8/10. 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.
Fri 9/251:44 pm -
1 stop7h 25m
Sun 9/275:00 am -
1 stop4h 44m
Deal found 8/10![American Airlines logo]()
$308
This Delta deal was found by Cheapflights users on 8/9. 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.
Tue 9/85:48 pm -
1 stop6h 11m
Tue 9/151:55 pm -
2 stops8h 22m
Deal found 8/9![Delta logo]()
$314
This Delta deal was found by Cheapflights users on 8/10. 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.
Tue 8/2512:58 pm -
1 stop7h 57m
Sat 8/292:30 pm -
2 stops7h 42m
Deal found 8/10![Delta logo]()
$354
This Delta deal was found by Cheapflights users on 8/13. 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.
Fri 8/285:45 pm -
1 stop6h 12m
Tue 9/111:22 am -
2 stops10h 50m
Deal found 8/13![Delta logo]()
$354
This American Airlines deal was found by Cheapflights users on 8/11. 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 10/156:48 pm -
1 stop5h 11m
Sun 10/188:14 am -
1 stop5h 04m
Deal found 8/11![American Airlines logo]()
$492
This American Airlines deal was found by Cheapflights users on 8/11. 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.
Mon 10/51:48 pm -
1 stop7h 42m
Fri 10/98:14 am -
1 stop5h 04m
Deal found 8/11![American Airlines logo]()
$614
This Delta deal was found by Cheapflights users on 8/11. 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.
Wed 8/265:48 pm -
1 stop6h 09m
Sun 8/306:59 am -
2 stops10h 06m
Deal found 8/11![Delta logo]()
$614
This Delta deal was found by Cheapflights users on 8/9. 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.
Mon 10/195:54 pm -
1 stop5h 58m
Fri 10/231:55 pm -
2 stops8h 14m
Deal found 8/9![Delta logo]()
$620
This Delta deal was found by Cheapflights users on 8/12. 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.
Wed 11/251:06 pm -
2 stops8h 28m
Sat 11/285:30 am -
1 stop6h 56m
Deal found 8/12![Delta logo]()
$674
This Delta deal was found by Cheapflights users on 8/11. 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.
Thu 10/155:54 pm -
1 stop5h 58m
Sun 10/181:55 pm -
2 stops8h 14m
Deal found 8/11![Delta logo]()
$774
Last-minute flights from Monroe to IllinoisDiscover last-minute flight deals from Monroe to Illinois. Data last updated August 13, 2026 and is based on user searches.
Discover last-minute flight deals from Monroe to Illinois. Data last updated August 13, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 8/9. 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 8/1310:18 am -
1 stop8h 11m
Sat 8/157:00 am -
1 stop6h 14m
Deal found 8/9![American Airlines logo]()
$538
This American Airlines deal was found by Cheapflights users on 8/8. 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.
Sun 8/161:44 pm -
1 stop7h 32m
Sat 8/226:00 am -
1 stop7h 14m
Deal found 8/8![American Airlines logo]()
$383
This Delta deal was found by Cheapflights users on 8/8. 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.
Sun 8/165:48 pm -
1 stop6h 09m
Sat 8/2212:29 pm -
2 stops9h 43m
Deal found 8/8![Delta logo]()
$389
This American Airlines deal was found by Cheapflights users on 8/10. 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 8/251:44 pm -
1 stop5h 58m
Sat 8/297:00 am -
1 stop6h 14m
Deal found 8/10![American Airlines logo]()
$348
This Delta deal was found by Cheapflights users on 8/10. 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.
Tue 8/2512:58 pm -
1 stop7h 57m
Sat 8/292:30 pm -
2 stops7h 42m
Deal found 8/10![Delta logo]()
$354
This Delta deal was found by Cheapflights users on 8/9. 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.
Sun 9/66:07 am -
1 stop6h 33m
Sat 9/125:30 am -
1 stop6h 43m
Deal found 8/9![Delta logo]()
$308
This Delta deal was found by Cheapflights users on 8/9. 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.
Tue 9/812:53 pm -
2 stops7h 37m
Tue 9/1511:17 am -
2 stops11h 00m
Deal found 8/9![Delta logo]()
$359
One-way flights from Monroe to IllinoisSearch for one-way flight options from Monroe to Illinois. Find affordable one-way fares based on user searches. Data last updated August 13, 2026.
Search for one-way flight options from Monroe to Illinois. Find affordable one-way fares based on user searches. Data last updated August 13, 2026.
This Delta deal was found by Cheapflights users on 8/10. 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.
Fri 9/45:48 pm -
1 stop6h 09m
Deal found 8/10![Delta logo]()
$337
This American Airlines deal was found by Cheapflights users on 8/10. 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.
Fri 9/41:44 pm -
2 stops7h 56m
Deal found 8/10![American Airlines logo]()
$688
Find flight deals from Monroe to Illinois
Keep the following information in mind while searching for Monroe to Illinois flight deals. Data was last updated August 13, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $308 (Delta) |
Cheapflights Fare Finder
Customize your flight search to find flights from Monroe 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 August 13, 2026.
Use the filters below to find and compare flights from Monroe to Illinois that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
MonroeChicago
MLU Monroe Huenefeld - ORD Chicago O'Hare Intl
MLUORD
Monroe Huenefeld
Sun 9/6
6:07 am-12:40 pm
1 stop6h 33m
Chicago O'Hare Intl
Sat 9/12
5:30 am-12:13 pm
1 stop6h 43m
$308
MonroeChicago
MLU Monroe Huenefeld - ORD Chicago O'Hare Intl
MLUORD
Monroe Huenefeld
Fri 9/25
1:44 pm-9:09 pm
1 stop7h 25m
Chicago O'Hare Intl
Sun 9/27
5:00 am-9:44 am
1 stop4h 44m
$308
MonroeChicago
MLU Monroe Huenefeld - ORD Chicago O'Hare Intl
MLUORD
Monroe Huenefeld
Tue 9/8
5:48 pm-11:59 pm
1 stop6h 11m
Chicago O'Hare Intl
Tue 9/15
1:55 pm-10:17 pm
2 stops8h 22m
$314
MonroeChicago
MLU Monroe Huenefeld - ORD Chicago O'Hare Intl
MLUORD
Monroe Huenefeld
Tue 8/25
12:58 pm-8:55 pm
1 stop7h 57m
Chicago O'Hare Intl
Sat 8/29
2:30 pm-10:12 pm
2 stops7h 42m
$354
MonroeChicago
MLU Monroe Huenefeld - ORD Chicago O'Hare Intl
MLUORD
Monroe Huenefeld
Fri 8/28
5:45 pm-11:57 pm
1 stop6h 12m
Chicago O'Hare Intl
Tue 9/1
11:22 am-10:12 pm
2 stops10h 50m
$354
Quickest round-trip
MonroeChicago
MLU Monroe Huenefeld - ORD Chicago O'Hare Intl
MLUORD
Monroe Huenefeld
Thu 10/15
6:48 pm-11:59 pm
1 stop5h 11m
Chicago O'Hare Intl
Sun 10/18
8:14 am-1:18 pm
1 stop5h 04m
$492
MonroeChicago
MLU Monroe Huenefeld - ORD Chicago O'Hare Intl
MLUORD
Monroe Huenefeld
Mon 10/5
1:48 pm-9:30 pm
1 stop7h 42m
Chicago O'Hare Intl
Fri 10/9
8:14 am-1:18 pm
1 stop5h 04m
$614
MonroeChicago
MLU Monroe Huenefeld - ORD Chicago O'Hare Intl
MLUORD
Monroe Huenefeld
Wed 8/26
5:48 pm-11:57 pm
1 stop6h 09m
Chicago O'Hare Intl
Sun 8/30
6:59 am-5:05 pm
2 stops10h 06m
$614
MonroeChicago
MLU Monroe Huenefeld - ORD Chicago O'Hare Intl
MLUORD
Monroe Huenefeld
Mon 10/19
5:54 pm-11:52 pm
1 stop5h 58m
Chicago O'Hare Intl
Fri 10/23
1:55 pm-10:09 pm
2 stops8h 14m
$620
MonroeChicago
MLU Monroe Huenefeld - ORD Chicago O'Hare Intl
MLUORD
Monroe Huenefeld
Wed 11/25
1:06 pm-9:34 pm
2 stops8h 28m
Chicago O'Hare Intl
Sat 11/28
5:30 am-12:26 pm
1 stop6h 56m
$674
Showing 1-10 of 13 resultsSorted by cheapest first
Best time to book a flight from Monroe to Illinois
Have a flexible travel schedule? Discover the best time to fly to Illinois from Monroe with our price prediction graph.
MLU-ORD
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 Monroe to Illinois
MLU-USIL
MLU-ORD
No data available for this route at this time. Please check back soon.
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 August 13, 2026.
Read through reviews of airlines operating flights from Monroe to Illinois, such as Delta. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.8
Overall
7.8
Entertainment
7.8
Crew
8.5
Food
7.2
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Overall
7.8
Entertainment
7.8
Crew
8.5
Food
7.2
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Related info for your journey
Find useful and relevant information for your journey from Monroe 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 Monroe to Illinois
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Complete your trip
Complete your trip to Illinois by adding a car rental and/or hotel reservation to your travel itinerary.
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Monroe and Illinois flights
Browse other Monroe and Illinois flight options. Last updated on August 13, 2026.
Popular flight searches
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Monroe to Illinois flights
Consider these flights traveling from Monroe to Illinois.
Top airline flying from Monroe to Illinois
Discover the top airline that operate flights from Monroe 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 August 13, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$129 | Average$468 | FlexibilityNo cancel fee | On-timeN/A |