HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Champaign

Cheap flights from Ontario to Champaign (ONT - CMI)

ONT — CMI
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Ontario to Champaign 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 Ontario to Champaign

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Champaign (CMI). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Popular in

October

Cheapest in

April

Average price

$976
Provider with most accurate pricing for Ontario-Champaign University-Willard flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ontario-Champaign University-Willard flights.
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($21 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($37 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Compare providers for flights from Ontario to Champaign

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Champaign in October.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Ontario-Champaign flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Ontario-Champaign flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Ontario-Champaign flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-Champaign flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-Champaign flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Ontario to Champaign

Have a flexible travel schedule? Discover the best time to fly to Champaign from Ontario 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 Ontario to Champaign

What is the cheapest month to book a flight from Ontario to Champaign?

Currently, February is the cheapest month in which you can book a flight from Ontario to Champaign (average of $228). Flying from Ontario to Champaign in April is currently the most expensive (average of $369). 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.

Reviews of airlines servicing Champaign

Get insights into the airlines that provide service to Champaign. 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 Champaign. Reviews last updated October 30, 2025.
See what other customers who have flown with American Airlines from Ontario to Champaign have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.2
Good
11,034 reviews

Overall

7.2

Boarding

7.5

Comfort

7.2

Crew

8.0

Food

6.4

Entertainment

6.9

Reviews

1 / 20
2.0
Mediocre

Jeremy,Sep 2025

SAN - PHL

Terrible. Bad customer service and unacceptable delay on the tarmac
American Airlines
7.2
Good
11,034 reviews
American Airlines
7.2
Good
11,034 reviews

Overall

7.2

Boarding

7.5

Comfort

7.2

Crew

8.0

Food

6.4

Entertainment

6.9

Reviews

1 / 20
2.0
Mediocre

Jeremy,Sep 2025

SAN - PHL

Terrible. Bad customer service and unacceptable delay on the tarmac

Related info for your journey

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

  • Can I find deals for flights from Ontario to Champaign that include hotel bookings?

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

  • How can I find direct flights from Ontario to Champaign?

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

  • Can I find deals for business class flights from Ontario to Champaign?

    Yes. Cheapflights offers flight deals from Ontario to Champaign 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 Ontario to Champaign?

    Currently, February is the cheapest month in which you can book a flight from Ontario to Champaign (average of $228). Flying from Ontario to Champaign in April is currently the most expensive (average of $369). 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

Traveling to a place near Champaign?

Book flights to Champaign if you plan to visit one of these locations
Urbana
Danville

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 Ontario to Champaign

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to O'Hare Intl flights
San Francisco to O'Hare Intl flights
Ontario to O'Hare Intl flights
Los Angeles to Midway flights
San Francisco to Midway flights
Santa Ana to O'Hare Intl flights
San Diego to O'Hare Intl flights
Sacramento to O'Hare Intl flights
San Jose to O'Hare Intl flights
Burbank to O'Hare Intl flights
Oakland to O'Hare Intl flights
Los Angeles to St. Louis flights
Las Vegas to O'Hare Intl flights
San Francisco to St. Louis flights
San Diego to Midway flights
Sacramento to Midway flights
Ontario to St. Louis flights
Oakland to Midway flights
Reno to O'Hare Intl flights
Santa Ana to Midway flights
Las Vegas to Midway flights
Fresno to O'Hare Intl flights
San Diego to St. Louis flights
Palm Springs to O'Hare Intl flights
Burbank to Midway flights
Las Vegas to St. Louis flights
Ontario to Midway flights
Long Beach to O'Hare Intl flights
Burbank to St. Louis flights
Fresno to Midway flights
San Jose to Midway flights
Oakland to St. Louis flights
Santa Ana to St. Louis flights
San Jose to St. Louis flights
Monterey to O'Hare Intl flights
Santa Barbara to O'Hare Intl flights
Sacramento to St. Louis flights
Los Angeles to Moline flights
Reno to Midway flights
Los Angeles to Rockford flights
Long Beach to St. Louis flights
Santa Ana to Moline flights
San Luis Obispo to O'Hare Intl flights
Los Angeles to Peoria flights
Long Beach to Midway flights
Santa Ana to Bloomington flights
Palm Springs to Midway flights
San Francisco to Rockford flights
San Diego to Peoria flights
Las Vegas to Moline flights

Top airline flying from Ontario to Champaign

Discover the top airline that operate flights from Ontario to Champaign. 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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$466Average$578FlexibilityNo 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.