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Cheap flights from Champaign to Los Angeles from $434

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Champaign to Los Angeles departing on 11/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Champaign to Los Angeles

Cheap round-trip flights

American Airlines Logo
3:49 pm - 10:42 pmCMI-ONT
8h 53m1 stop
American Airlines Logo
12:46 pm - 8:30 pmONT-CMI
5h 44m1 stop
$434American Airlines
Find Deal
Sat, Nov 1 - Sat, Nov 8
American Airlines Logo
6:54 am - 3:24 pmCMI-ONT
10h 30m2 stops
American Airlines Logo
12:46 pm - 8:30 pmONT-CMI
5h 44m1 stop
$440American Airlines
Find Deal
Sat, Nov 1 - Sat, Nov 8
American Airlines Logo
6:00 am - 3:24 pmCMI-ONT
11h 24m2 stops
American Airlines Logo
9:59 am - 9:42 pmONT-CMI
9h 43m2 stops
$445American Airlines
Find Deal
Sat, Nov 1 - Sat, Nov 8
American Airlines Logo
6:10 am - 2:04 pmCMI-ONT
9h 54m1 stop
American Airlines Logo
12:46 pm - 8:27 pmONT-CMI
5h 41m1 stop
$524American Airlines
Find Deal
Tue, Nov 25 - Sat, Dec 6
American Airlines Logo
6:07 am - 11:36 amCMI-ONT
7h 29m1 stop
American Airlines Logo
6:00 am - 2:36 pmONT-CMI
6h 36m1 stop
$527American Airlines
Find Deal
Fri, Nov 28 - Fri, Dec 5
American Airlines Logo
6:10 am - 2:04 pmCMI-ONT
9h 54m1 stop
American Airlines Logo
9:59 am - 9:40 pmONT-CMI
9h 41m2 stops
$530American Airlines
Find Deal
Tue, Nov 25 - Sat, Dec 6
American Airlines Logo
6:07 am - 11:36 amCMI-ONT
7h 29m1 stop
American Airlines Logo
9:59 am - 9:30 pmONT-CMI
9h 31m2 stops
$533American Airlines
Find Deal
Fri, Nov 28 - Fri, Dec 5
American Airlines Logo
6:13 am - 4:01 pmCMI-ONT
11h 48m2 stops
American Airlines Logo
9:59 am - 8:27 pmONT-CMI
8h 28m2 stops
$535American Airlines
Find Deal
Wed, Nov 26 - Wed, Dec 3
American Airlines Logo
6:10 am - 11:36 amCMI-ONT
7h 26m1 stop
American Airlines Logo
10:47 am - 8:27 pmONT-CMI
7h 40m1 stop
$540American Airlines
Find Deal
Tue, Nov 25 - Wed, Dec 3
American Airlines Logo
6:10 am - 11:36 amCMI-ONT
7h 26m1 stop
American Airlines Logo
6:17 am - 8:27 pmONT-CMI
12h 10m2 stops
$546American Airlines
Find Deal
Tue, Nov 25 - Sat, Dec 6

American Airlines flights from Champaign to Ontario

Our best American Airlines deals on Champaign to Ontario flight tickets
American Airlines
Nov 1
CMI3:49 pmChampaign University-Willard
8h 53m
1 stop
ONT10:42 pmOntario
Nov 8
ONT12:46 pmOntario
5h 44m
1 stop
CMI8:30 pmChampaign University-Willard
$434
Find similar
American Airlines
Nov 1
CMI6:54 amChampaign University-Willard
10h 30m
2 stops
ONT3:24 pmOntario
Nov 8
ONT12:46 pmOntario
5h 44m
1 stop
CMI8:30 pmChampaign University-Willard
$440
Find similar
American Airlines
Nov 1
CMI6:00 amChampaign University-Willard
11h 24m
2 stops
ONT3:24 pmOntario
Nov 8
ONT9:59 amOntario
9h 43m
2 stops
CMI9:42 pmChampaign University-Willard
$445
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Champaign to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated August 25, 2025.
Use the filters below to find and compare flights from Champaign to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChampaignOntario

CMI - ONT

CMIONT

Champaign University-Willard

Sat 11/1

3:49 pm-10:42 pm

1 stop8h 53m

Ontario

Sat 11/8

12:46 pm-8:30 pm

1 stop5h 44m

$434

ChampaignOntario

CMI - ONT

CMIONT

Champaign University-Willard

Sat 11/1

6:54 am-3:24 pm

2 stops10h 30m

Ontario

Sat 11/8

12:46 pm-8:30 pm

1 stop5h 44m

$440

ChampaignOntario

CMI - ONT

CMIONT

Champaign University-Willard

Sat 11/1

6:00 am-3:24 pm

2 stops11h 24m

Ontario

Sat 11/8

9:59 am-9:42 pm

2 stops9h 43m

$445

ChampaignOntario

CMI - ONT

CMIONT

Champaign University-Willard

Tue 11/25

6:10 am-2:04 pm

1 stop9h 54m

Ontario

Sat 12/6

12:46 pm-8:27 pm

1 stop5h 41m

$524

ChampaignOntario

CMI - ONT

CMIONT

Champaign University-Willard

Fri 11/28

6:07 am-11:36 am

1 stop7h 29m

Ontario

Fri 12/5

6:00 am-2:36 pm

1 stop6h 36m

$527

ChampaignOntario

CMI - ONT

CMIONT

Champaign University-Willard

Tue 11/25

6:10 am-2:04 pm

1 stop9h 54m

Ontario

Sat 12/6

9:59 am-9:40 pm

2 stops9h 41m

$530

ChampaignOntario

CMI - ONT

CMIONT

Champaign University-Willard

Fri 11/28

6:07 am-11:36 am

1 stop7h 29m

Ontario

Fri 12/5

9:59 am-9:30 pm

2 stops9h 31m

$533

ChampaignOntario

CMI - ONT

CMIONT

Champaign University-Willard

Wed 11/26

6:13 am-4:01 pm

2 stops11h 48m

Ontario

Wed 12/3

9:59 am-8:27 pm

2 stops8h 28m

$535

ChampaignOntario

CMI - ONT

CMIONT

Champaign University-Willard

Tue 11/25

6:10 am-11:36 am

1 stop7h 26m

Ontario

Wed 12/3

10:47 am-8:27 pm

1 stop7h 40m

$540

ChampaignOntario

CMI - ONT

CMIONT

Champaign University-Willard

Tue 11/25

6:10 am-11:36 am

1 stop7h 26m

Ontario

Sat 12/6

6:17 am-8:27 pm

2 stops12h 10m

$546

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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How to get the cheapest flight ticket from Champaign to Ontario

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Ontario?

The cheapest day to depart on your flight to Ontario is on a Wednesday when prices can be found for as low as $386. This is often the case because there is less demand to fly during this day of the week. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from Champaign to Ontario for around $778.

What is the cheapest time of day to depart on your flight to Ontario?

In the afternoon is the cheapest time of day to fly from Champaign to Ontario when you can find flight prices for as low as $637. Flying to Ontario in the afternoon is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $711 on average. Flights to Ontario from Champaign in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

When to book flights from Champaign to Ontario

Are you open to changing your travel dates? Check out the ideal times to fly from Champaign to Ontario according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Champaign to Ontario (CMI to ONT) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Champaign to Ontario

Direct flights

None
There are no direct flights from Champaign to Ontario. There are no popular flight routes from Champaign to Ontario.
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  • How far is Champaign University-Willard to Ontario by plane?

    A flight from Champaign University-Willard to Ontario will travel around 1664.9 mi. Flights usually cover this in 6h 55m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Champaign University-Willard Airport to Ontario Airport?

    Prices for flights from Champaign University-Willard Airport to Ontario Airport were last updated today.

  • How many operators does momondo search for flights from Champaign University-Willard Airport to Ontario Airport?

  • How old do you have to be to fly from Champaign University-Willard Airport to Ontario Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Champaign University-Willard Airport to Ontario Airport.

  • What documentation or ID do you need to fly to Ontario Airport?

    The required travel and health documents for your Ontario Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Ontario Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Champaign to Ontario?

Best airlines flying from Champaign to Ontario

Compare and see reviews for airlines that fly from Champaign to Ontario with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $356Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Champaign to Ontario?

It is quick and easy to find Champaign to Ontario flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Ontario that suits you.

Can I find flights from Champaign to Ontario with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Champaign to Ontario flights to just show those with flexible booking policies.

How can momondo help me find flights from Champaign to Ontario?

Once all potential Champaign to Ontario flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Champaign to Ontario right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Ontario from Champaign. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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