$149 Find Cheap Flights from Waterloo to Illinois - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Waterloo to Illinois departing on 9/5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Book Cheap Waterloo to Illinois Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Waterloo to Illinois that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Waterloo to Illinois

Fri, Oct 23 - Sun, Oct 25
American Airlines Logo
3:39 pm - 5:14 pmALO  Waterloo-ORD Chicago O'Hare Intl
1h 35mnonstop
American Airlines Logo
1:49 pm - 3:18 pmORD  Chicago O'Hare Intl-ALO Waterloo
1h 29mnonstop
$204American Airlines
Tue, Sep 1 - Mon, Sep 7
American Airlines Logo
5:00 am - 6:23 amALO  Waterloo-ORD Chicago O'Hare Intl
1h 23mnonstop
American Airlines Logo
1:29 pm - 2:52 pmORD  Chicago O'Hare Intl-ALO Waterloo
1h 23mnonstop
$204American Airlines
Thu, Aug 20 - Sun, Aug 23
American Airlines Logo
3:23 pm - 4:58 pmALO  Waterloo-ORD Chicago O'Hare Intl
1h 35mnonstop
American Airlines Logo
11:00 pm - 12:22 amORD  Chicago O'Hare Intl-ALO Waterloo
1h 22mnonstop
$204American Airlines
Fri, Aug 21 - Sun, Aug 23
American Airlines Logo
3:23 pm - 4:58 pmALO  Waterloo-ORD Chicago O'Hare Intl
1h 35mnonstop
American Airlines Logo
1:29 pm - 2:52 pmORD  Chicago O'Hare Intl-ALO Waterloo
1h 23mnonstop
$274American Airlines
Tue, Aug 25 - Tue, Aug 25
American Airlines Logo
5:00 am - 6:23 amALO  Waterloo-ORD Chicago O'Hare Intl
1h 23mnonstop
American Airlines Logo
11:00 pm - 12:22 amORD  Chicago O'Hare Intl-ALO Waterloo
1h 22mnonstop
$393American Airlines
Sat, Aug 22 - Wed, Aug 26
American Airlines Logo
5:00 am - 8:24 amALO  Waterloo-STL Lambert-St Louis
3h 24m1 stop Chicago O'Hare Intl
American Airlines Logo
9:32 am - 2:52 pmSTL  Lambert-St Louis-ALO Waterloo
5h 20m1 stop Chicago O'Hare Intl
$550American Airlines
Booking Insights

KAYAK's insights & trends for Waterloo to Illinois flights

Get data-powered insights and trends into flights from Waterloo to Illinois to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest Waterloo to Illinois flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Illinois from Waterloo found in the last 5 days was to Chicago, at $243 round-trip. The most popular route is from Waterloo (ALO) to Chicago O'Hare Intl Airport (ORD), and the cheapest round-trip airline ticket found on this route in the last 5 days was $243.

What is the cheapest time of day to fly to Illinois?

The average price for all round-trip flights from Waterloo to Illinois depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Illinois is generally in the evening, when round-trip flights cost $519 on average. On average, there is no price difference when choosing to fly in the morning or the evening on this flight route. The most expensive time of day to fly to Illinois is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $589.

Can I save money by flying with a layover from Waterloo to Illinois?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $303, prices are generally cheapest when you fly direct.

Good to know

Cheapest flight

$149
Flight from Waterloo to Chicago

FAQs - booking Illinois flights

  • How does KAYAK find such low prices on flights from Waterloo to Illinois?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Waterloo to Illinois.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Waterloo to Illinois?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Waterloo to Illinois is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Waterloo to Illinois?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Waterloo to Illinois with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Waterloo to Illinois?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Waterloo to Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights to Illinois

  • Looking for a cheap flight? 25% of our users found tickets from Waterloo to the following destinations at these prices or less: Chicago $302 one-way - $303 round-trip

Reviews of the top airline flying from Waterloo to Illinois

 
See real verified KAYAK customer reviews for airlines flying from Waterloo to Illinois. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Waterloo to Illinois? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.1
American AirlinesOverall score based on 11893 reviews
7.9Crew
7.2Comfort
7.5Boarding
6.8Entertainment
6.4Food
Airline reviews

The flight was delayed in 30 minute increments for a total of 4 hours and 30 minute delay. All other flights to Chicago left on time except for this one flight. If there is an issue with the inbound flight, just let customers know so they can find another flight right away, Once we got on the plane there was another 30 minute delay taking off at 10:30 at night which is very unusual that a flight wouldn't be ready to take off

2.0 MediocreJohn, Aug 2026
Read more American Airlines reviews

The flight was delayed in 30 minute increments for a total of 4 hours and 30 minute delay. All other flights to Chicago left on time except for this one flight. If there is an issue with the inbound flight, just let customers know so they can find another flight right away, Once we got on the plane there was another 30 minute delay taking off at 10:30 at night which is very unusual that a flight wouldn't be ready to take off

My seat had a worn out cushion, which made it a bit uncomfortable. Other than that, the flight was excellent.

Take this flight regularly. Every single week same thing. Departure delayed. Make up some time in the air. Land at ORD and then wait for gate in "L" concourse Terminal 3 for 30-40 min-which yields a very delayed final arrival. Plus I get to taxi around and see every runway and drive over the bridge (IFKYK) over the expressway 2-4 times in most cases. Change the sched of incoming plane/work with FAA to improve traffic flow at ORD/change the timing of these flights. Whatever it takes. But do better.

- flight was delayed several hours due to weather (understandable) - flight delayed further and we were told by attendants "we are not sure where the pilots are but they are on their way" as we have to find different pilots for the flight - announcements over the PA were somewhat unprofessional by the attendants, seems they need more training and were not reading off the script. They showed their young age and immaturity in their communications with the passengers. They were not clear and lacked professional communication language. - going from a hub to hub we were also parked at the tarmac at ohare for an additional hour and kept being told "few more minutes". Please just let the passengers know the real wait time instead of hiding the truth. We understand there is traffic and weather delays, but we just want transparency. There are several logistics of our lives that revolve around what the attendants and pilots are sharing with us but they are not being transparant.

Boarding and Delays The boarding process for my American Airlines flight from Copenhagen to Philadelphia was a bit tricky. We experienced a gate change that required a long walk to a new area of the airport. Additionally, boarding was not via a jet bridge; we had to take a shuttle bus to the plane and then carry our luggage up the stairs ourselves. Furthermore, the bag drop didn't open until about 12:20 PM, which was only three hours before our scheduled departure. This meant I couldn't drop my bag off early and had to wait outside of security in order to drop off my bag and use the kiosk. The bag drop self-service kiosks also didn't open until about 12:00 PM when an American Airlines employee unlocked them so that we could print out our boarding passes and bag tags, which further created a backlog. The flight was delayed by over an hour because we had to wait for one of the tires on the plane to be changed. Flight Attendant Professionalism On a positive note, the flight attendant was very professional when handling a passenger who was sitting in the wrong seat. Even though the passenger was persistent and reluctant to move, the flight attendant calmly ensured the assigned passenger could take their seat. Kudos to the flight attendant for keeping his calm and composure, not allowing the issue to escalate, and handling it well under pressure while a line of passengers waited in the aisle to board. In-Flight Service The in-flight service was also fast, prompt, and efficient, although service had to be suspended for the last two hours of the flight due to weather and turbulence, which was outside of the crew's control. Limited Flight Options Please note that American Airlines only operates one flight per day in and out of Copenhagen. This means there are limited options available if your flight is delayed or canceled, which is something to take into consideration when booking.

I will never but. through kayak again. and American Airlines. I will never fly again on. They're both thieves.

Nothing, I wont be flying American Airlines again and will not be recommending anyone to fly American Airlines. It was the worst experience flying I've ever had.

My luggage was not sent with us. Not sure if this is Envoy Air responsibility but that was a very BAD experience

The planes can use an actual cleaning. The armrest and seats do not appear to be cleaned on this one and most other planes.

The boarding process needs to be fixed. The zone don't work, especially when there is hardly anyone in zones 3, 4,and 5, leaving the majority of the passengers backed up in the aisle, especially because passengers seated near the front are blocking passengers who are seated in the rear of the plane. It would also help if the size of carry on bags was more strictly enforced.

Everything you need to know for your flight from Waterloo to Illinois

Information on your arrival and departure airports