What is the cheapest airline that flies from Greater Peoria to Ontario?

United Airlines and American Airlines are the most popular carriers operating from Greater Peoria to Ontario

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

Prices for flights from Greater Peoria Airport to Ontario Airport refresh daily.

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

As of December 2025, there are 2 operators available to choose from for flights from Greater Peoria Airport to Ontario Airport.

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

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Greater Peoria 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.

$285 Cheap Flights from Peoria to Ontario in 2025/26

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Find the cheapest flights from Peoria, Illinois to Los Angeles

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

4:20 pm - 10:48 pm

PIA

ONT

8h 28m1 stop

10:58 am - 9:43 pm

ONT

PIA

8h 45m1 stop

$309American Airlines

Sat, Jan 17 - Sat, Jan 24

4:20 pm - 10:48 pm

PIA

ONT

8h 28m1 stop

9:59 am - 9:43 pm

ONT

PIA

9h 44m2 stops

$314American Airlines

Sat, Jan 17 - Sat, Jan 24

7:39 am - 4:05 pm

PIA

ONT

10h 26m2 stops

6:27 am - 4:32 pm

ONT

PIA

8h 05m2 stops

$344American Airlines

Sat, Jan 17 - Sat, Jan 24

3:00 pm - 10:53 pm

PIA

ONT

9h 53m2 stops

6:39 pm - 10:10 am

ONT

PIA

13h 31m2 stops

$370United Airlines

Fri, Jan 30 - Sun, Feb 1

8:35 am - 12:47 pm

PIA

ONT

6h 12m1 stop

1:24 pm - 8:47 pm

ONT

PIA

5h 23m1 stop

$399United Airlines

Wed, Jan 14 - Wed, Jan 21

8:35 am - 12:47 pm

PIA

ONT

6h 12m1 stop

6:00 am - 8:47 pm

ONT

PIA

12h 47m2 stops

$404United Airlines

Wed, Jan 14 - Wed, Jan 21

8:35 am - 5:43 pm

PIA

ONT

11h 08m2 stops

8:00 am - 9:39 pm

ONT

PIA

11h 39m2 stops

$409United Airlines

Wed, Jan 14 - Wed, Jan 21

3:00 pm - 10:53 pm

PIA

ONT

9h 53m2 stops

1:24 pm - 8:47 pm

ONT

PIA

5h 23m1 stop

$429United Airlines

Fri, Jan 9 - Tue, Jan 13

1:24 pm - 10:53 pm

PIA

ONT

11h 29m2 stops

5:05 am - 4:43 pm

ONT

PIA

9h 38m2 stops

$434United Airlines

Fri, Jan 9 - Tue, Jan 13

10:45 am - 9:59 pm

PIA

ONT

13h 14m2 stops

1:24 pm - 8:47 pm

ONT

PIA

5h 23m1 stop

$454United Airlines

Tue, Jan 6 - Sat, Jan 10

American Airlines flights from Peoria, Illinois to Ontario

Our best American Airlines deals on Peoria, Illinois to Ontario flight tickets

American Airlines

Jan 17

PIA4:20 pmGreater Peoria

8h 28m

1 stop

ONT10:48 pmOntario

Jan 24

ONT10:58 amOntario

8h 45m

1 stop

PIA9:43 pmGreater Peoria

$309

Find similar

American Airlines

Jan 17

PIA4:20 pmGreater Peoria

8h 28m

1 stop

ONT10:48 pmOntario

Jan 24

ONT9:59 amOntario

9h 44m

2 stops

PIA9:43 pmGreater Peoria

$314

Find similar

American Airlines

Jan 17

PIA7:39 amGreater Peoria

10h 26m

2 stops

ONT4:05 pmOntario

Jan 24

ONT6:27 amOntario

8h 05m

2 stops

PIA4:32 pmGreater Peoria

$344

Find similar

United Airlines flights from Peoria, Illinois to Ontario

Our best United Airlines deals on Peoria, Illinois to Ontario flight tickets

United Airlines

Jan 30

PIA3:00 pmGreater Peoria

9h 53m

2 stops

ONT10:53 pmOntario

Feb 1

ONT6:39 pmOntario

13h 31m

2 stops

PIA10:10 amGreater Peoria

$370

Find similar

United Airlines

Jan 14

PIA8:35 amGreater Peoria

6h 12m

1 stop

ONT12:47 pmOntario

Jan 21

ONT1:24 pmOntario

5h 23m

1 stop

PIA8:47 pmGreater Peoria

$399

Find similar

United Airlines

Jan 14

PIA8:35 amGreater Peoria

6h 12m

1 stop

ONT12:47 pmOntario

Jan 21

ONT6:00 amOntario

12h 47m

2 stops

PIA8:47 pmGreater Peoria

$404

Find similar

momondo Fare Finder

Use the filters below to find and compare flights from Peoria, Illinois to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PeoriaOntario

PIA - ONT

PIAONT

Greater Peoria

Sat 1/17

4:20 pm-10:48 pm

1 stop8h 28m

Ontario

Sat 1/24

10:58 am-9:43 pm

1 stop8h 45m

$309

PeoriaOntario

PIA - ONT

PIAONT

Greater Peoria

Sat 1/17

4:20 pm-10:48 pm

1 stop8h 28m

Ontario

Sat 1/24

9:59 am-9:43 pm

2 stops9h 44m

$314

PeoriaOntario

PIA - ONT

PIAONT

Greater Peoria

Sat 1/17

7:39 am-4:05 pm

2 stops10h 26m

Ontario

Sat 1/24

6:27 am-4:32 pm

2 stops8h 05m

$344

PeoriaOntario

PIA - ONT

PIAONT

Greater Peoria

Fri 1/30

3:00 pm-10:53 pm

2 stops9h 53m

Ontario

Sun 2/1

6:39 pm-10:10 am

2 stops13h 31m

$370

PeoriaOntario

PIA - ONT

PIAONT

Greater Peoria

Wed 1/14

8:35 am-12:47 pm

1 stop6h 12m

Ontario

Wed 1/21

1:24 pm-8:47 pm

1 stop5h 23m

$399

PeoriaOntario

PIA - ONT

PIAONT

Greater Peoria

Wed 1/14

8:35 am-12:47 pm

1 stop6h 12m

Ontario

Wed 1/21

6:00 am-8:47 pm

2 stops12h 47m

$404

PeoriaOntario

PIA - ONT

PIAONT

Greater Peoria

Wed 1/14

8:35 am-5:43 pm

2 stops11h 08m

Ontario

Wed 1/21

8:00 am-9:39 pm

2 stops11h 39m

$409

PeoriaOntario

PIA - ONT

PIAONT

Greater Peoria

Fri 1/9

3:00 pm-10:53 pm

2 stops9h 53m

Ontario

Tue 1/13

1:24 pm-8:47 pm

1 stop5h 23m

$429

PeoriaOntario

PIA - ONT

PIAONT

Greater Peoria

Fri 1/9

1:24 pm-10:53 pm

2 stops11h 29m

Ontario

Tue 1/13

5:05 am-4:43 pm

2 stops9h 38m

$434

PeoriaOntario

PIA - ONT

PIAONT

Greater Peoria

Tue 1/6

10:45 am-9:59 pm

2 stops13h 14m

Ontario

Sat 1/10

1:24 pm-8:47 pm

1 stop5h 23m

$454

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Peoria, Illinois 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

Prices

Airlines

What is the cheapest month to fly to Ontario?

In general, May is the cheapest month to fly from Peoria, Illinois to Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $354. If you aren’t able to travel during the month of May, then book flights to Ontario from Peoria, Illinois during July instead. Flights to Ontario in July, while not as cheap as those in May, still average around $378.

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 Saturday when prices can be found for as low as $553. This is often the case because there is less demand to fly during this day of the week. When flying out on a Tuesday, the most expensive travel day of the week, you can expect to see flight prices from Peoria, Illinois to Ontario for around $642.

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 Peoria, Illinois to Ontario when you can find flight prices for as low as $447. 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 $713 on average. Flights to Ontario from Peoria, Illinois in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

Can stopping save me money on Peoria, Illinois to Ontario flights?

You could potentially save up to 15% on your flight if you consider stops on a Peoria, Illinois to Ontario flight.

When to book flights from Peoria, Illinois to Ontario

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

Estimated round-trip price

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

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

Fastest flight time	5h 43m
Direct flights	None

The fastest flight from Peoria, Illinois to Ontario takes 5h 43m

There are no direct flights from Peoria, Illinois to Ontario. There are no popular flight routes from Peoria, Illinois to Ontario.

Search flight deals

How far is Greater Peoria to Ontario by plane?
Ontario is 1598.5 mi away from Greater Peoria. Typically, this will take 5h 43m by plane in normal conditions.
When did momondo last update prices for flights from Greater Peoria Airport to Ontario Airport?
Prices for flights from Greater Peoria Airport to Ontario Airport refresh daily.
How many operators does momondo search for flights from Greater Peoria Airport to Ontario Airport?
As of December 2025, there are 2 operators available to choose from for flights from Greater Peoria Airport to Ontario Airport.
How old do you have to be to fly from Greater Peoria Airport to Ontario Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Greater Peoria 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 Peoria, Illinois to Ontario?
momondo data reveals that the most frequently booked airline on the route from Peoria, Illinois to Ontario is American Airlines, representing 60% of all bookings. The subsequent popular airline is United Airlines at 40%.

Best airlines flying from Peoria, Illinois to Ontario

Compare and see reviews for airlines that fly from Peoria, Illinois to Ontario with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $288	Free Cancellation	Rating 7.4 9,105 reviews		Search United Airlines flights
American Airlines	PriceFrom $418	Free Cancellation	Rating 7.2 11,054 reviews		Search American Airlines flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Peoria to Ontario. momondo saves you time and could save you money on your trip.

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

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

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

momondo provides multiple filters to help you find the best flight to Ontario from Peoria. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Price alerts on flights to Ontario from Peoria are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.