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Champaign

Cheap flights from Ontario to Champaign (ONT - CMI)

ONT — CMI
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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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 September 17, 2025.

Popular in

December

Cheapest in

April

Average price

$658
Highest demand for flights based on searches. 4% potential increase in price ($29 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($18 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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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, August is the cheapest month in which you can book a flight from Ontario to Champaign (average of $384). Flying from Ontario to Champaign in June is currently the most expensive (average of $548). 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 September 17, 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
10,000 reviews

Entertainment

6.9

Comfort

7.2

Overall

7.2

Crew

8.0

Boarding

7.5

Food

6.4

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
10,000 reviews
American Airlines
7.2
Good
10,000 reviews

Entertainment

6.9

Comfort

7.2

Overall

7.2

Crew

8.0

Boarding

7.5

Food

6.4

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, August is the cheapest month in which you can book a flight from Ontario to Champaign (average of $384). Flying from Ontario to Champaign in June is currently the most expensive (average of $548). 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
Danville

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Alternative routes for Ontario to Champaign

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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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$466Average$558FlexibilityNo cancel feeOn-time71%

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