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$428+ Cheap flights from Waco (ACT) 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 2/21. Fares are subject to change and may not be available on all flights or dates of travel.
ACT — ORD
Mar 9 — Mar 161
Mon 3/9
Mon 3/16
1 adult, Economy
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Cheap flight deals from Waco to Illinois

Cheapest flights from Waco to Illinois
Explore the most affordable flight options available from Waco to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 7, 2026.

This American Airlines deal was found by Cheapflights users on 2/6. 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 2/215:05 am
ACT
-
STL
1 stop3h 50m
American Airlines
Wed 2/255:12 am
STL
-
ACT
1 stop4h 53m
American Airlines
Deal found 2/6$428
This American Airlines deal was found by Cheapflights users on 2/6. 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 2/216:12 pm
ACT
-
ORD
1 stop5h 24m
American Airlines
Wed 2/252:58 pm
ORD
-
ACT
1 stop7h 24m
American Airlines
Deal found 2/6$492
This American Airlines deal was found by Cheapflights users on 2/5. 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 2/206:12 pm
ACT
-
ORD
1 stop6h 43m
American Airlines
Tue 2/2410:49 am
ORD
-
ACT
1 stop6h 53m
American Airlines
Deal found 2/5$501
This American Airlines deal was found by Cheapflights users on 2/5. 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 2/145:05 am
ACT
-
STL
1 stop5h 56m
American Airlines
Mon 2/1611:46 am
STL
-
ACT
1 stop5h 56m
American Airlines
Deal found 2/5$509

Find flight deals from Waco to Illinois

Keep the following information in mind while searching for Waco to Illinois flight deals. Data was last updated February 7, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$428
(American Airlines)
Provider with most accurate pricing for Waco-Chicago (CHI) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Waco-Chicago (CHI) flights.
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From Waco to Illinois
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Waco 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 February 7, 2026.
Use the filters below to find and compare flights from Waco to Illinois that are best for you.

Fly from

Waco

Fly to

Illinois

Route

Depart

Return

Price

WacoSt. Louis

ACT - STL

ACTSTL

Waco

Sat 2/21

5:05 am-8:55 am

1 stop3h 50m

Lambert-St Louis

Wed 2/25

5:12 am-10:05 am

1 stop4h 53m

$428

WacoChicago

ACT - ORD

ACTORD

Waco

Sat 2/21

6:12 pm-11:36 pm

1 stop5h 24m

Chicago O'Hare Intl

Wed 2/25

2:58 pm-10:22 pm

1 stop7h 24m

$492

WacoChicago

ACT - ORD

ACTORD

Waco

Fri 2/20

6:12 pm-12:55 am

1 stop6h 43m

Chicago O'Hare Intl

Tue 2/24

10:49 am-5:42 pm

1 stop6h 53m

$501

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/6

Best time to book a flight from Waco to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Waco 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 Waco to Illinois

What is the cheapest month to book a flight from Waco to Illinois?

Currently, March is the cheapest month in which you can book a flight from Waco to Illinois (average of $47). Flying from Waco to Illinois in August is currently the most expensive (average of $112). 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.

Related info for your journey

Find useful and relevant information for your journey from Waco to Illinois. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Waco to Illinois?

    Waco (ACT), located 6.2 mi from the city center, is the airport you fly out of when you book flights from Waco to Illinois.

  • How long is the flight from Waco to Illinois?

    American Airlines can get you from Waco to Illinois in just under 3h 50m. Your travel time can differ by up to . The distance between Waco and Illinois is about 626 mi.

  • Can I find deals for flights from Waco to Illinois that include hotel bookings?

    Yes. In addition to deals on Waco to Illinois flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Waco to Illinois?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Waco to Illinois.

  • Can I find deals for business class flights from Waco to Illinois?

    Yes. Cheapflights offers flight deals from Waco to Illinois 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 Waco to Illinois?

    Currently, March is the cheapest month in which you can book a flight from Waco to Illinois (average of $47). Flying from Waco to Illinois in August is currently the most expensive (average of $112). 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

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