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Cheap flights from Ontario to Peoria from $284

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Peoria departing on 2/19. 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 Ontario to Peoria

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
7:22 pm - 7:51 pm
ONT
-
PIA
22h 29m
1 stop
Multiple Airlines Logo
8:41 pm - 1:52 pm
PIA
-
ONT
19h 11m
1 stop
$284Multiple Airlines
Thu, Feb 19 - Mon, Feb 23
United Airlines Logo
11:59 pm - 9:03 am
ONT
-
PIA
7h 04m
1 stop
United Airlines Logo
5:25 pm - 10:18 pm
PIA
-
ONT
6h 53m
1 stop
$309United Airlines
Sat, Mar 7 - Sat, Mar 14
United Airlines Logo
7:00 am - 4:58 pm
ONT
-
PIA
7h 58m
1 stop
United Airlines Logo
5:38 pm - 10:28 pm
PIA
-
ONT
6h 50m
1 stop
$327United Airlines
Sat, Aug 1 - Sat, Aug 8
United Airlines Logo
6:37 pm - 9:03 am
ONT
-
PIA
12h 26m
2 stops
United Airlines Logo
5:25 pm - 10:18 pm
PIA
-
ONT
6h 53m
1 stop
$332United Airlines
Sat, Mar 7 - Sat, Mar 14
United Airlines Logo
5:55 am - 7:26 pm
ONT
-
PIA
11h 31m
2 stops
United Airlines Logo
5:38 pm - 10:28 pm
PIA
-
ONT
6h 50m
1 stop
$334United Airlines
Sat, Aug 1 - Sat, Aug 8
Multiple Airlines Logo
7:22 pm - 7:51 pm
ONT
-
PIA
22h 29m
1 stop
Multiple Airlines Logo
8:41 pm - 9:34 pm
PIA
-
ONT
26h 53m
2 stops
$361Multiple Airlines
Thu, Feb 19 - Mon, Feb 23
United Airlines Logo
7:00 am - 4:50 pm
ONT
-
PIA
7h 50m
1 stop
United Airlines Logo
10:40 am - 6:01 pm
PIA
-
ONT
9h 21m
1 stop
$399United Airlines
Tue, May 12 - Sat, May 16
United Airlines Logo
1:40 pm - 11:59 pm
ONT
-
PIA
8h 19m
2 stops
United Airlines Logo
5:25 pm - 10:30 pm
PIA
-
ONT
7h 05m
1 stop
$404United Airlines
Wed, May 13 - Wed, May 20
United Airlines Logo
1:40 pm - 9:19 pm
ONT
-
PIA
5h 39m
1 stop
United Airlines Logo
5:25 pm - 10:30 pm
PIA
-
ONT
7h 05m
1 stop
$424United Airlines
Wed, May 13 - Wed, May 20
United Airlines Logo
1:00 pm - 12:14 am
ONT
-
PIA
9h 14m
2 stops
United Airlines Logo
5:38 pm - 10:28 pm
PIA
-
ONT
6h 50m
1 stop
$427United Airlines
Fri, Jul 10 - Mon, Jul 13

United Airlines flights from Ontario to Peoria, Illinois

Our best United Airlines deals on Ontario to Peoria, Illinois flight tickets
United Airlines
Mar 7
ONT11:59 pmOntario
7h 04m
1 stop
PIA9:03 amGreater Peoria
Mar 14
PIA5:25 pmGreater Peoria
6h 53m
1 stop
ONT10:18 pmOntario
$309
United Airlines
Aug 1
ONT7:00 amOntario
7h 58m
1 stop
PIA4:58 pmGreater Peoria
Aug 8
PIA5:38 pmGreater Peoria
6h 50m
1 stop
ONT10:28 pmOntario
$327
United Airlines
Mar 7
ONT6:37 pmOntario
12h 26m
2 stops
PIA9:03 amGreater Peoria
Mar 14
PIA5:25 pmGreater Peoria
6h 53m
1 stop
ONT10:18 pmOntario
$332

American Airlines flights from Ontario to Peoria, Illinois

Our best American Airlines deals on Ontario to Peoria, Illinois flight tickets
American Airlines
Mar 13
ONT2:39 pmOntario
6h 19m
1 stop
PIA10:58 pmGreater Peoria
Mar 16
PIA5:22 pmGreater Peoria
7h 08m
1 stop
ONT10:30 pmOntario
$478
American Airlines
Mar 13
ONT12:22 pmOntario
9h 34m
2 stops
PIA11:56 pmGreater Peoria
Mar 16
PIA5:22 pmGreater Peoria
8h 37m
1 stop
ONT11:59 pmOntario
$483
American Airlines
May 13
ONT9:24 amOntario
12h 13m
2 stops
PIA11:37 pmGreater Peoria
May 20
PIA6:00 amGreater Peoria
14h 30m
2 stops
ONT6:30 pmOntario
$598

momondo Fare Finder

 
Customize your flight search to find flights from Ontario to Peoria, Illinois 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 February 5, 2026.
Use the filters below to find and compare flights from Ontario to Peoria, Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

OntarioPeoria

ONT - PIA

ONTPIA

Ontario

Thu 2/19

7:22 pm-7:51 pm

1 stop22h 29m

Greater Peoria

Mon 2/23

8:41 pm-1:52 pm

1 stop19h 11m

$284

OntarioPeoria

ONT - PIA

ONTPIA

Ontario

Sat 3/7

11:59 pm-9:03 am

1 stop7h 04m

Greater Peoria

Sat 3/14

5:25 pm-10:18 pm

1 stop6h 53m

$309

OntarioPeoria

ONT - PIA

ONTPIA

Ontario

Sat 8/1

7:00 am-4:58 pm

1 stop7h 58m

Greater Peoria

Sat 8/8

5:38 pm-10:28 pm

1 stop6h 50m

$327

OntarioPeoria

ONT - PIA

ONTPIA

Ontario

Sat 3/7

6:37 pm-9:03 am

2 stops12h 26m

Greater Peoria

Sat 3/14

5:25 pm-10:18 pm

1 stop6h 53m

$332

OntarioPeoria

ONT - PIA

ONTPIA

Ontario

Sat 8/1

5:55 am-7:26 pm

2 stops11h 31m

Greater Peoria

Sat 8/8

5:38 pm-10:28 pm

1 stop6h 50m

$334

OntarioPeoria

ONT - PIA

ONTPIA

Ontario

Thu 2/19

7:22 pm-7:51 pm

1 stop22h 29m

Greater Peoria

Mon 2/23

8:41 pm-9:34 pm

2 stops26h 53m

$361

OntarioPeoria

ONT - PIA

ONTPIA

Ontario

Tue 5/12

7:00 am-4:50 pm

1 stop7h 50m

Greater Peoria

Sat 5/16

10:40 am-6:01 pm

1 stop9h 21m

$399

OntarioPeoria

ONT - PIA

ONTPIA

Ontario

Wed 5/13

1:40 pm-11:59 pm

2 stops8h 19m

Greater Peoria

Wed 5/20

5:25 pm-10:30 pm

1 stop7h 05m

$404

OntarioPeoria

ONT - PIA

ONTPIA

Ontario

Wed 5/13

1:40 pm-9:19 pm

1 stop5h 39m

Greater Peoria

Wed 5/20

5:25 pm-10:30 pm

1 stop7h 05m

$424

OntarioPeoria

ONT - PIA

ONTPIA

Ontario

Fri 7/10

1:00 pm-12:14 am

2 stops9h 14m

Greater Peoria

Mon 7/13

5:38 pm-10:28 pm

1 stop6h 50m

$427

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 14 resultsSorted by cheapest first
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See travel insights to Peoria from

How to get the cheapest flight ticket from Ontario to Peoria, Illinois

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 airline that flies from Ontario to Greater Peoria?

United Airlines is the most popular carrier operating from Ontario to Greater Peoria

When to book flights from Ontario to Peoria, Illinois

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

Cheap Ontario to Peoria, Illinois (ONT to PIA) flight deals and tips

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

Fastest flight time

5h 45m

Direct flights

None
The fastest flight from Ontario to Peoria, Illinois takes 5h 45m
There are no direct flights from Ontario to Peoria, Illinois. There are no popular flight routes from Ontario to Peoria, Illinois.
Search flight deals

  • How far is Ontario to Greater Peoria by plane?

    Ontario and Greater Peoria are 1598.5 mi apart from one another. Typically, this will take 5h 45m by plane in normal conditions.

  • When did momondo last update prices for flights from Ontario Airport to Greater Peoria Airport?

    Prices for flights from Ontario Airport to Greater Peoria Airport are updated daily.

  • How many operators does momondo search for flights from Ontario Airport to Greater Peoria Airport?

  • How old do you have to be to fly from Ontario Airport to Greater Peoria 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 Ontario Airport to Greater Peoria Airport.

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

    The travel and health documents you'll need for your trip to Greater Peoria Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Greater Peoria Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Ontario to Peoria, Illinois?

Best airlines flying from Ontario to Peoria, Illinois

Compare and see reviews for airlines that fly from Ontario to Peoria, Illinois with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $288Free CancellationRating
7.2
11,237 reviews
Search American Airlines flights
United AirlinesPriceFrom $358Free CancellationRating
7.4
9,240 reviews
Search United Airlines flights

Traveling to a place near Peoria?

Book flights to Peoria if you plan to visit one of these locations
Canton

Why use momondo?

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

Finding the right flight to Peoria from Ontario is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Peoria quick and easy, saving you time and money.

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

momondo does allow users to show only those flights to Peoria from Ontario which offer a flexible booking policy as well as other useful filters and features.

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

Once all potential Ontario to Peoria 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 Ontario to Peoria right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Ontario to Peoria flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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