$258 Cheap Flights from Champaign (CMI) to Waterloo (ALO)

View $258 flight on Tue, Nov 18, 2025Opens in a new window

Popular airlines from Champaign, IL (CMI-University Of Illinois Urbana-Champaign Williard) to Waterloo, IA (ALO-Waterloo Regional)

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Cheap Flights from Champaign to Waterloo (CMI-ALO)

Prices were available within the past 7 days and start at $258 for one-way flights and $472 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Wed, Sep 24 - Tue, Oct 7
CMI
Champaign
ALO
Waterloo
$472 Roundtrip, found 4 days ago
$472
Roundtrip
found 4 days ago
Select American Airlines flight, departing Wed, Sep 24 from Champaign to Waterloo, returning Tue, Oct 7, priced at $472 found 4 days ago
American Airlines
Wed, Sep 24 - Thu, Oct 9
CMI
Champaign
ALO
Waterloo
$496 Roundtrip, found 4 days ago
$496
Roundtrip
found 4 days ago
Select American Airlines flight, departing Wed, Sep 24 from Champaign to Waterloo, returning Thu, Oct 9, priced at $496 found 4 days ago
American Airlines
Wed, Sep 24 - Wed, Oct 1
CMI
Champaign
ALO
Waterloo
$643 Roundtrip, found 4 days ago
$643
Roundtrip
found 4 days ago
Select American Airlines flight, departing Wed, Sep 24 from Champaign to Waterloo, returning Wed, Oct 1, priced at $643 found 4 days ago
American Airlines
Wed, Sep 24 - Thu, Sep 25
CMI
Champaign
ALO
Waterloo
$710 Roundtrip, found 4 days ago
$710
Roundtrip
found 4 days ago
Select American Airlines flight, departing Wed, Sep 24 from Champaign to Waterloo, returning Thu, Sep 25, priced at $710 found 4 days ago

Frequently asked questions

How much does a flight from University Of Illinois Urbana-Champaign Williard Airport (CMI) to Waterloo Regional Airport (ALO) cost?
Snag a cheap one-way flight from $258 or cheap return flight from $472 from University Of Illinois Urbana-Champaign Williard Airport (CMI) to Waterloo Regional Airport (ALO) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from University Of Illinois Urbana-Champaign Williard Airport (CMI) to Waterloo Regional Airport (ALO)?
The cheapest month to fly from CMI to ALO is September, when there's less demand. Off-peak season is generally when airlines offer better prices between these airports.
What is the cheapest airline that flies from University Of Illinois Urbana-Champaign Williard Airport (CMI) to Waterloo Regional Airport (ALO)?
Use the filter tool on Expedia to compare different airlines and find the cheapest carrier that'll take you from CMI to ALO. Then, sort your results by "Price (lowest to highest)" to pick up a good deal.
How many flights per day from University Of Illinois Urbana-Champaign Williard Airport (CMI) to Waterloo Regional Airport (ALO)?
Nonstop flights from University Of Illinois Urbana-Champaign Williard Airport (CMI) to Waterloo Regional Airport (ALO) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filters. Enter your travel dates and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from CMI to ALO?
Generally you'll find the widest variety of flight choices on a Friday. Tuesdays are often the quietest.* However, this can change depending on the time of year, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from University Of Illinois Urbana-Champaign Williard Airport (CMI) to Waterloo Regional Airport (ALO)?
To land at Waterloo Regional Airport (ALO) on schedule, select a flight that takes off from University Of Illinois Urbana-Champaign Williard Airport (CMI) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from University Of Illinois Urbana-Champaign Williard Airport (CMI) to Waterloo Regional Airport (ALO) last-minute?
Last-minute fares from CMI to ALO are typically more expensive. For the best rates, start searching for flights well ahead of time. That said, if your travel plans are flexible, it's possible to find a cheap fare right before your journey.
Is it cheaper to book a CMI to ALO flight and hotel package?
You can save money by booking a CMI to ALO flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one convenient place. After selecting your ideal accommodations and flights, you can add extras like activities, car rentals and tours.
Can I cancel or change the date of my flight from University Of Illinois Urbana-Champaign Williard Airport (CMI) to Waterloo Regional Airport (ALO)?
In most instances, you're able to cancel or reschedule your CMI to ALO flight. However, additional charges may apply, especially if you made your booking more than 24 hours ago. Check your itinerary for the airline's fees and policies on flight changes, or if you want more information, go to our Customer Service portal.

Travel information

Travel information

Origin airport
University Of Illinois Urbana-Champaign Williard
Destination airport
Waterloo Regional
Roundtrip price
$472
Distance
275 mi

Book with confidence

Book with confidence

Champaign to Waterloo Flights

The cheapest times to fly from Champaign to Waterloo

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Champaign to Waterloo are during the month of September. You can find some of the cheapest flights from Champaign to Waterloo with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Champaign to Waterloo

Sunday is one of the best days to book for cheap flights from Champaign to Waterloo: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Champaign to Waterloo

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Champaign to Waterloo in 2025. You can also book with separate airlines for your outbound and return journeys, from $258 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Champaign to Waterloo flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Champaign to Waterloo airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Champaign to Waterloo Flights

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Explore a world of travel with Expedia

*Available to One Key members.