Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Ontario to Peoria from $348

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Peoria departing on 9/12. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Ontario to Peoria

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
2:27 pm - 11:19 pmONT  Ontario-PIA Greater Peoria
6h 52m1 stop Dallas/Fort Worth
American Airlines Logo
4:43 pm - 10:37 pmPIA  Greater Peoria-ONT Ontario
7h 54m1 stop Dallas/Fort Worth
$414American Airlines
Thu, Aug 20 - Sat, Oct 3
Multiple Airlines Logo
6:15 am - 5:19 pmONT  Ontario-PIA Greater Peoria
9h 04m1 stop Denver Intl
Multiple Airlines Logo
10:07 am - 7:36 pmPIA  Greater Peoria-ONT Ontario
35h 29m2 stops Denver Intl San Francisco
$415Multiple Airlines
Thu, Sep 10 - Sun, Sep 13
Multiple Airlines Logo
6:15 am - 5:19 pmONT  Ontario-PIA Greater Peoria
9h 04m1 stop Denver Intl
Multiple Airlines Logo
10:07 am - 7:36 pmPIA  Greater Peoria-ONT Ontario
35h 29m2 stops Denver Intl San Francisco
$416Multiple Airlines
Thu, Sep 10 - Sun, Sep 13
American Airlines Logo
12:59 pm - 11:19 pmONT  Ontario-PIA Greater Peoria
8h 20m2 stops Phoenix Sky Harbor Intl Dallas/Fort Worth
American Airlines Logo
4:43 pm - 10:37 pmPIA  Greater Peoria-ONT Ontario
7h 54m1 stop Dallas/Fort Worth
$419American Airlines
Thu, Aug 20 - Sat, Oct 3
American Airlines Logo
12:37 pm - 11:15 pmONT  Ontario-PIA Greater Peoria
8h 38m1 stop Dallas/Fort Worth
American Airlines Logo
12:31 pm - 6:53 pmPIA  Greater Peoria-ONT Ontario
8h 22m1 stop Dallas/Fort Worth
$419American Airlines
Fri, Oct 2 - Sun, Oct 4
American Airlines Logo
6:00 am - 3:57 pmONT  Ontario-PIA Greater Peoria
7h 57m1 stop Dallas/Fort Worth
American Airlines Logo
12:31 pm - 6:53 pmPIA  Greater Peoria-ONT Ontario
8h 22m1 stop Dallas/Fort Worth
$419American Airlines
Thu, Oct 1 - Sun, Oct 4
American Airlines Logo
1:04 pm - 11:15 pmONT  Ontario-PIA Greater Peoria
8h 11m2 stops Phoenix Sky Harbor Intl Dallas/Fort Worth
American Airlines Logo
12:31 pm - 6:53 pmPIA  Greater Peoria-ONT Ontario
8h 22m1 stop Dallas/Fort Worth
$424American Airlines
Fri, Oct 2 - Sun, Oct 4
Multiple Airlines Logo
6:15 am - 5:19 pmONT  Ontario-PIA Greater Peoria
9h 04m1 stop Denver Intl
Multiple Airlines Logo
10:07 am - 10:30 amPIA  Greater Peoria-ONT Ontario
26h 23m1 stop Denver Intl
$436Multiple Airlines
Thu, Sep 10 - Sun, Sep 13
United Airlines Logo
7:00 am - 2:57 pmONT  Ontario-PIA Greater Peoria
5h 57m1 stop Chicago O'Hare Intl
United Airlines Logo
8:45 am - 12:50 pmPIA  Greater Peoria-ONT Ontario
6h 05m1 stop Denver Intl
$459United Airlines
Fri, Aug 28 - Sun, Aug 30
United Airlines Logo
1:00 pm - 8:47 pmONT  Ontario-PIA Greater Peoria
5h 47m1 stop Denver Intl
United Airlines Logo
1:20 pm - 6:44 pmPIA  Greater Peoria-ONT Ontario
7h 24m1 stop Chicago O'Hare Intl
$459United Airlines
Wed, Dec 9 - Sat, Dec 12

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

United Airlines flights from Ontario to Peoria, Illinois

Our best United Airlines deals on Ontario to Peoria, Illinois flight tickets
United Airlines
Aug 28
ONT7:00 amOntario
5h 57m
1 stop
PIA2:57 pmGreater Peoria
Aug 30
PIA8:45 amGreater Peoria
6h 05m
1 stop
ONT12:50 pmOntario
$459
United Airlines
Aug 28
ONT1:18 pmOntario
5h 32m
1 stop
PIA8:50 pmGreater Peoria
Aug 31
PIA8:45 amGreater Peoria
13h 16m
2 stops
ONT8:01 pmOntario
$464
United Airlines
Dec 9
ONT6:53 pmOntario
13h 28m
2 stops
PIA10:21 amGreater Peoria
Dec 12
PIA8:50 amGreater Peoria
10h 57m
2 stops
ONT5:47 pmOntario
$469

American Airlines flights from Ontario to Peoria, Illinois

Our best American Airlines deals on Ontario to Peoria, Illinois flight tickets
American Airlines
Aug 20
ONT2:27 pmOntario
6h 52m
1 stop
PIA11:19 pmGreater Peoria
Oct 3
PIA4:43 pmGreater Peoria
7h 54m
1 stop
ONT10:37 pmOntario
$414
American Airlines
Aug 20
ONT12:59 pmOntario
8h 20m
2 stops
PIA11:19 pmGreater Peoria
Oct 3
PIA4:43 pmGreater Peoria
7h 54m
1 stop
ONT10:37 pmOntario
$419
American Airlines
Oct 2
ONT1:04 pmOntario
8h 11m
2 stops
PIA11:15 pmGreater Peoria
Oct 4
PIA12:31 pmGreater Peoria
8h 22m
1 stop
ONT6:53 pmOntario
$424

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 August 6, 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

Cheapest round-trip

OntarioPeoria

ONT Ontario - PIA Greater Peoria

ONTPIA

Ontario

Thu 8/20

2:27 pm-11:19 pm

1 stop6h 52m

Greater Peoria

Sat 10/3

4:43 pm-10:37 pm

1 stop7h 54m

$414

OntarioPeoria

ONT Ontario - PIA Greater Peoria

ONTPIA

Ontario

Thu 9/10

6:15 am-5:19 pm

1 stop9h 04m

Greater Peoria

Sun 9/13

10:07 am-7:36 pm

2 stops35h 29m

$415

OntarioPeoria

ONT Ontario - PIA Greater Peoria

ONTPIA

Ontario

Thu 9/10

6:15 am-5:19 pm

1 stop9h 04m

Greater Peoria

Sun 9/13

10:07 am-7:36 pm

2 stops35h 29m

$416

OntarioPeoria

ONT Ontario - PIA Greater Peoria

ONTPIA

Ontario

Thu 8/20

12:59 pm-11:19 pm

2 stops8h 20m

Greater Peoria

Sat 10/3

4:43 pm-10:37 pm

1 stop7h 54m

$419

OntarioPeoria

ONT Ontario - PIA Greater Peoria

ONTPIA

Ontario

Fri 10/2

12:37 pm-11:15 pm

1 stop8h 38m

Greater Peoria

Sun 10/4

12:31 pm-6:53 pm

1 stop8h 22m

$419

OntarioPeoria

ONT Ontario - PIA Greater Peoria

ONTPIA

Ontario

Thu 10/1

6:00 am-3:57 pm

1 stop7h 57m

Greater Peoria

Sun 10/4

12:31 pm-6:53 pm

1 stop8h 22m

$419

OntarioPeoria

ONT Ontario - PIA Greater Peoria

ONTPIA

Ontario

Fri 10/2

1:04 pm-11:15 pm

2 stops8h 11m

Greater Peoria

Sun 10/4

12:31 pm-6:53 pm

1 stop8h 22m

$424

OntarioPeoria

ONT Ontario - PIA Greater Peoria

ONTPIA

Ontario

Thu 9/10

6:15 am-5:19 pm

1 stop9h 04m

Greater Peoria

Sun 9/13

10:07 am-10:30 am

1 stop26h 23m

$436
Quickest round-trip

OntarioPeoria

ONT Ontario - PIA Greater Peoria

ONTPIA

Ontario

Fri 8/28

7:00 am-2:57 pm

1 stop5h 57m

Greater Peoria

Sun 8/30

8:45 am-12:50 pm

1 stop6h 05m

$459

OntarioPeoria

ONT Ontario - PIA Greater Peoria

ONTPIA

Ontario

Wed 12/9

1:00 pm-8:47 pm

1 stop5h 47m

Greater Peoria

Sat 12/12

1:20 pm-6:44 pm

1 stop7h 24m

$459

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 resultsSorted by cheapest first
1
2

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 32m

Direct flights

None
The fastest flight from Ontario to Peoria, Illinois takes 5h 32m
There are no direct flights from Ontario to Peoria, Illinois. There are no popular flight routes from Ontario to Peoria, Illinois.
Search flight deals

Frequently asked questions about flying from Ontario to Peoria, Illinois

  • 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 32m 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 $294Free CancellationRating
7.1
11,866 reviews
Search American Airlines flights

Traveling to a place near Peoria?

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

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.

An easier way to manage your Peoria, Illinois trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 9/5
Sat 9/12
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States