HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Illinois

$149+ Cheap flights from Waterloo, IA (ALO) 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 2/2. Fares are subject to change and may not be available on all flights or dates of travel.
ALO — ORD
Sep 10 — Sep 171
Thu 9/10
Thu 9/17
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Waterloo 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 Waterloo to Illinois

Cheapest flights from Waterloo to Illinois
Explore the most affordable flight options available from Waterloo to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 11, 2026.

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 9/15:00 am -
Nonstop1h 23m
Mon 9/71:29 pm -
Nonstop1h 23m
Deal found 8/10$204
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.
Fri 8/213:23 pm -
Nonstop1h 35m
Sun 8/231:29 pm -
Nonstop1h 23m
Deal found 8/8$274
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.
Wed 9/25:00 am -
Nonstop1h 23m
Thu 9/31:29 pm -
Nonstop1h 23m
Deal found 8/10$293
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 8/143:23 pm -
Nonstop1h 35m
Sat 8/1511:00 pm -
Nonstop1h 22m
Deal found 8/10$304
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.
Tue 8/255:00 am -
Nonstop1h 23m
Tue 8/2511:00 pm -
Nonstop1h 22m
Deal found 8/8$393
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.
Sun 8/165:00 am -
Nonstop1h 23m
Sun 8/161:29 pm -
Nonstop1h 23m
Deal found 8/9$493
This American Airlines deal was found by Cheapflights users on 8/7. 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 8/225:00 am -
1 stop3h 24m
Wed 8/269:32 am -
1 stop5h 20m
Deal found 8/7$550
This American Airlines deal was found by Cheapflights users on 8/6. 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.
Wed 8/123:23 pm -
Nonstop1h 35m
Thu 8/1311:00 pm -
Nonstop1h 22m
Deal found 8/6$593
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.
Mon 8/103:23 pm -
Nonstop1h 35m
Mon 8/1011:00 pm -
Nonstop1h 22m
Deal found 8/9$693

Find flight deals from Waterloo to Illinois

Keep the following information in mind while searching for Waterloo to Illinois flight deals. Data was last updated August 11, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$204
(American Airlines)

One-way from

$149
(American Airlines)

Good round-trip deal

$510 or less

Good one-way deal

$302 or less
Provider with most accurate pricing for Waterloo-Chicago (CHI) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Waterloo-Chicago (CHI) flights.
Search Deals
From Waterloo to Illinois
Search Deals
One-way flight from Waterloo to Illinois
Search Deals
Price to beat on a round-trip flight from Waterloo to Illinois.
Search Deals
Price to beat on a one-way flight from Waterloo to Illinois.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Waterloo 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 11, 2026.
Use the filters below to find and compare flights from Waterloo to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

WaterlooChicago

ALO Waterloo - ORD Chicago O'Hare Intl

ALOORD

Waterloo

Fri 10/23

3:39 pm-5:14 pm

Nonstop1h 35m

Chicago O'Hare Intl

Sun 10/25

1:49 pm-3:18 pm

Nonstop1h 29m

$204

WaterlooChicago

ALO Waterloo - ORD Chicago O'Hare Intl

ALOORD

Waterloo

Tue 9/1

5:00 am-6:23 am

Nonstop1h 23m

Chicago O'Hare Intl

Mon 9/7

1:29 pm-2:52 pm

Nonstop1h 23m

$204

WaterlooChicago

ALO Waterloo - ORD Chicago O'Hare Intl

ALOORD

Waterloo

Fri 8/21

3:23 pm-4:58 pm

Nonstop1h 35m

Chicago O'Hare Intl

Sun 8/23

1:29 pm-2:52 pm

Nonstop1h 23m

$274

WaterlooChicago

ALO Waterloo - ORD Chicago O'Hare Intl

ALOORD

Waterloo

Wed 9/2

5:00 am-6:23 am

Nonstop1h 23m

Chicago O'Hare Intl

Thu 9/3

1:29 pm-2:52 pm

Nonstop1h 23m

$293
Quickest round-trip

WaterlooChicago

ALO Waterloo - ORD Chicago O'Hare Intl

ALOORD

Waterloo

Tue 8/25

5:00 am-6:23 am

Nonstop1h 23m

Chicago O'Hare Intl

Tue 8/25

11:00 pm-12:22 am

Nonstop1h 22m

$393

WaterlooSt. Louis

ALO Waterloo - STL Lambert-St Louis

ALOSTL

Waterloo

Sat 8/22

5:00 am-8:24 am

1 stop3h 24m

Lambert-St Louis

Wed 8/26

9:32 am-2:52 pm

1 stop5h 20m

$550

WaterlooSt. Louis

ALO Waterloo - STL Lambert-St Louis

ALOSTL

Waterloo

Tue 8/25

5:00 am-8:24 am

1 stop3h 24m

Lambert-St Louis

Sat 8/29

8:06 pm-12:22 am

1 stop4h 16m

$550
Cheapest one-way

WaterlooChicago

ALO Waterloo - ORD Chicago O'Hare Intl

ALOORD

Waterloo

Tue 2/2

3:48 pm-5:24 pm

Nonstop1h 36m

$149

WaterlooChicago

ALO Waterloo - ORD Chicago O'Hare Intl

ALOORD

Waterloo

Fri 10/9

3:39 pm-5:14 pm

Nonstop1h 35m

$149

WaterlooChicago

ALO Waterloo - ORD Chicago O'Hare Intl

ALOORD

Waterloo

Sun 10/4

5:00 am-6:24 am

Nonstop1h 24m

$149

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/6

Showing 1-10 of 14 resultsSorted by cheapest first
1
2

Best time to book a flight from Waterloo to Illinois

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

What is the cheapest time of day to fly from ALO to IL?

Find hourly flight availability from Waterloo 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 August 11, 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Waterloo, Iowa to Illinois as you normally would.

Weekly flight availability from Waterloo, Iowa to Illinois

Explore weekly flight availability from Waterloo 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 August 11, 2026.

The most flights from ALO to USIL are scheduled on a Monday (3 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (1 on average).

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 11, 2026.
Get a feel of what it's like to fly with American Airlines from Waterloo to Illinois by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.1
Good
11,899 reviews

Boarding

7.5

Entertainment

6.8

Overall

7.1

Comfort

7.2

Food

6.4

Crew

7.9

Reviews

1 / 20
2.0
Mediocre

Anonymous,Aug 2025

BNA - ORD

My flight was 8 hours delayed, so I missed my connecting flight to Dublin. I understand it’s not the staff’s fault but the lack of sympathy and apology was appalling. I had been sat in the airport since 4am until 3pm and they did not seem understanding. Not good. Need better customer service.
American Airlines
7.1
Good
11,899 reviews
American Airlines
7.1
Good
11,899 reviews

Boarding

7.5

Entertainment

6.8

Overall

7.1

Comfort

7.2

Food

6.4

Crew

7.9

Reviews

1 / 20
2.0
Mediocre

Anonymous,Aug 2025

BNA - ORD

My flight was 8 hours delayed, so I missed my connecting flight to Dublin. I understand it’s not the staff’s fault but the lack of sympathy and apology was appalling. I had been sat in the airport since 4am until 3pm and they did not seem understanding. Not good. Need better customer service.

Related info for your journey

Find useful and relevant information for your journey from Waterloo 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 Waterloo to Illinois?

    For a flight from Waterloo to Illinois, you will be flying from Waterloo. Waterloo (ALO) is just 5.3 mi from the center of the city.

  • How long is the flight from Waterloo, Iowa to Illinois?

    There are many flights that can get you from Waterloo, Iowa to Illinois in 1h 35m. Fly via American Airlines to get the fastest option. Airlines will cover a distance of 233 mi. All flights are typically nonstop.

  • What are the most reliable airlines from Waterloo, Iowa to Illinois?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Waterloo, Iowa to Illinois on time: Envoy Air (100%), American Airlines (78%), Qatar Airways (60%).

  • What are the cheapest flights from Waterloo, Iowa to Illinois?

    While on average a flight from Waterloo, Iowa to Illinois is generally $637, our data shows the cheapest flight currently is $243. When looking at the most popular route, (Waterloo - Chicago O'Hare Intl), you can expect to pay $204 for that flight.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Waterloo 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Waterloo to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
Omaha to Denver flights
Omaha to O'Hare Intl flights
Des Moines to Denver flights
Cedar Rapids to Denver flights
Cedar Rapids to Seattle flights
Des Moines to Orlando flights
Omaha to Seattle flights
Cedar Rapids to Sky Harbor Intl flights
Cedar Rapids to Dallas/Fort Worth flights
Des Moines to Seattle flights
Des Moines to LaGuardia flights
Omaha to Orlando flights
Omaha to Las Vegas flights
Des Moines to Dallas/Fort Worth flights
Des Moines to Las Vegas flights
Omaha to Dallas/Fort Worth flights
Omaha to Newark flights
Des Moines to Miami flights
Cedar Rapids to Orlando flights
Des Moines to O'Hare Intl flights
Omaha to Atlanta flights
Des Moines to Los Angeles flights
Omaha to Nashville flights
Omaha to Los Angeles flights
Des Moines to Hobby flights
Cedar Rapids to John F Kennedy Intl flights
Omaha to Sky Harbor Intl flights
Omaha to Miami flights
Omaha to John F Kennedy Intl flights
Omaha to Hobby flights
Cedar Rapids to LaGuardia flights
Omaha to Boston flights
Des Moines to Sky Harbor Intl flights
Omaha to George Bush Intcntl flights
Des Moines to George Bush Intcntl flights
Cedar Rapids to San Diego flights
Des Moines to Newark flights
Omaha to Reagan-National flights
Omaha to LaGuardia flights
Cedar Rapids to Newark flights
Cedar Rapids to Miami flights
Moline to Denver flights
Omaha to Salt Lake City flights
Des Moines to San Francisco flights
Cedar Rapids to Hobby flights
Omaha to San Diego flights
Omaha to Midway flights
Moline to Orlando flights
Cedar Rapids to Dulles Intl flights

Top airline flying from Waterloo to Illinois

Discover the top airline that operate flights from Waterloo 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 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$273Average$303FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.