CMI - ONT

$515 Find Cheap Flights from Champaign to Ontario - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$702
Typical prices: $490-$600
American Airlines
Sat 12/22Fri 1/19
CMI - ONT • 1 stop
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Booking Insights
Flight Deals

Cheap Flights from Champaign to Ontario (CMI-ONT)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Champaign to Ontario

Tue, Dec 22 - Tue, Jan 19
American Airlines Logo
6:43 pm - 11:59 pmCMI  Champaign University-Willard-ONT Ontario
7h 16m1 stop Chicago O'Hare Intl
American Airlines Logo
4:19 pm - 6:24 pmONT  Ontario-CMI Champaign University-Willard
24h 05m2 stops Phoenix Sky Harbor Intl Chicago O'Hare Intl
$702American Airlines
Tue, Dec 22 - Tue, Jan 19
American Airlines Logo
6:43 pm - 11:59 pmCMI  Champaign University-Willard-ONT Ontario
7h 16m1 stop Chicago O'Hare Intl
American Airlines Logo
6:00 am - 2:08 pmONT  Ontario-CMI Champaign University-Willard
6h 08m1 stop Dallas/Fort Worth
$707American Airlines
Fri, Dec 25 - Mon, Jan 18
American Airlines Logo
7:00 am - 11:59 amCMI  Champaign University-Willard-ONT Ontario
6h 59m1 stop Dallas/Fort Worth
American Airlines Logo
4:19 pm - 11:11 amONT  Ontario-CMI Champaign University-Willard
16h 52m2 stops Phoenix Sky Harbor Intl Chicago O'Hare Intl
$713American Airlines
Tue, Dec 22 - Mon, Jan 18
American Airlines Logo
6:43 pm - 11:59 pmCMI  Champaign University-Willard-ONT Ontario
7h 16m1 stop Chicago O'Hare Intl
American Airlines Logo
9:27 am - 2:08 pmONT  Ontario-CMI Champaign University-Willard
26h 41m2 stops Phoenix Sky Harbor Intl Dallas/Fort Worth
$717American Airlines
Fri, Dec 25 - Mon, Jan 18
American Airlines Logo
7:00 am - 4:15 pmCMI  Champaign University-Willard-ONT Ontario
11h 15m2 stops Dallas/Fort Worth Phoenix Sky Harbor Intl
American Airlines Logo
4:19 pm - 11:11 amONT  Ontario-CMI Champaign University-Willard
16h 52m2 stops Phoenix Sky Harbor Intl Chicago O'Hare Intl
$718American Airlines
Thu, Jan 14 - Mon, Jan 18
American Airlines Logo
7:16 am - 6:16 pmCMI  Champaign University-Willard-ONT Ontario
13h 00m2 stops Dallas/Fort Worth Phoenix Sky Harbor Intl
American Airlines Logo
4:19 pm - 11:11 amONT  Ontario-CMI Champaign University-Willard
16h 52m2 stops Phoenix Sky Harbor Intl Chicago O'Hare Intl
$718American Airlines
Sat, Dec 19 - Tue, Jan 19
American Airlines Logo
6:43 pm - 11:59 pmCMI  Champaign University-Willard-ONT Ontario
7h 16m1 stop Chicago O'Hare Intl
American Airlines Logo
1:24 pm - 2:08 pmONT  Ontario-CMI Champaign University-Willard
22h 44m2 stops Phoenix Sky Harbor Intl Dallas/Fort Worth
$734American Airlines
Sat, Dec 19 - Tue, Jan 19
American Airlines Logo
6:43 pm - 11:59 pmCMI  Champaign University-Willard-ONT Ontario
7h 16m1 stop Chicago O'Hare Intl
American Airlines Logo
6:00 am - 2:08 pmONT  Ontario-CMI Champaign University-Willard
6h 08m1 stop Dallas/Fort Worth
$739American Airlines
Mon, Dec 21 - Tue, Jan 19
American Airlines Logo
6:43 pm - 11:59 pmCMI  Champaign University-Willard-ONT Ontario
7h 16m1 stop Chicago O'Hare Intl
American Airlines Logo
1:24 pm - 6:24 pmONT  Ontario-CMI Champaign University-Willard
27h 00m2 stops Phoenix Sky Harbor Intl Chicago O'Hare Intl
$747American Airlines
Fri, Dec 25 - Tue, Jan 19
American Airlines Logo
7:00 am - 1:31 pmCMI  Champaign University-Willard-ONT Ontario
8h 31m1 stop Dallas/Fort Worth
American Airlines Logo
1:24 pm - 6:24 pmONT  Ontario-CMI Champaign University-Willard
27h 00m2 stops Phoenix Sky Harbor Intl Chicago O'Hare Intl
$747American Airlines
Booking Insights

Price, demand and travel trends for Champaign to Ontario flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

How much is a round-trip flight from Champaign to Ontario?

Round-trip flights from Champaign to Ontario typically range from $490 to $600. The lowest price found in the past 5 days was $702, on American Airlines.

Key details for Champaign to Ontario flights

Low season

June

Cheapest flight

$515
Beat the crowds with an average 90% drop in travelers.
The most popular month to fly with an average 56% increase in travelers.
One-way flight from Champaign to Ontario

When to book flights from Champaign to Ontario

Are your dates flexible? Find out the best times to travel from Champaign to Ontario based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Champaign to Ontario flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What cabin classes can I book on flights from Champaign to Ontario?

    Only Economy Class is available on flights from Champaign to Ontario.

  • Do I need a passport to fly from Champaign to Ontario?

    No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.

  • How much should I expect to pay for a Champaign to Ontario flight?

    Round-trip flights from Champaign to Ontario range from $490 to $600, with an average of $490 over the past 12 months. Anything below $490 counts as a good deal.

  • Have flight prices from Champaign to Ontario changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route varied from about $702 to $1,146. That means the highest observed fare was about 63% higher than the lowest one.

  • What car rental options are available at Ontario Airport (ONT)?

    Ontario Airport (ONT) hosts 5 major car rental companies, with daily rates averaging $60 for economy cars. Top options include:

    • Fox
    • Europcar
    • Thrifty
    • Alamo
    • Dollar

  • Which airports can I use when flying from Champaign to Ontario?

    Flights from Champaign to Ontario usually depart from Champaign University-Willard (CMI) and arrive at Ontario (ONT).

  • Which airports do connecting flights from Champaign to Ontario pass through?

    Most connecting flights from Champaign to Ontario pass through Dallas/Fort Worth (DFW), which handles 100% of one-stop traffic on this route.

  • Can I save money by using flexible dates for flights from Champaign to Ontario?

    Yes. Flexible dates can save you up to 32% on flights from Champaign to Ontario. Wednesday is the cheapest departure day at $490 round-trip on average, while Friday is the most expensive at $716, a difference of $226.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What is the time difference between Champaign and Ontario?

    Ontario is 2 hours behind Champaign (Pacific Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Ontario?

    Some of the most popular sights in Ontario are Ontario Convention Center and Cucamonga-Guasti Regional Park. These are among the most viewed places in Ontario on KAYAK.

Your guide to booking Champaign to Ontario flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Wednesday departure and avoid flying on Friday. On this route, Wednesday flights average $490, about $226 less than Friday fares (32% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Champaign to Ontario trip for April. Fares historically average $490 round-trip in that month - typically $523 less than the most expensive month, which is January (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Ontario Airport.

    • Ontario Airport Inn
    • Azure Hotel & Suites, Trademark Collection by Wyndham
    • Holiday Inn Ontario Airport By IHG

More options for your flight from Champaign to Ontario

Complete your trip to Ontario with a hotel stay or car rental