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Riverside

$106+ Cheap flights from Ontario (ONT) to Riverside, CA

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/15. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — LAX
jul. 7 — jul. 141
lun. 7/7
lun. 7/14
1 adult, Economy
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Cheap flight deals from Ontario to Riverside

Keep the following information in mind while searching for Ontario to Riverside flight deals. Data was last updated julio 2, 2025.

Round-trip from

$487
(Kiwi.com)

One-way from

$106
(eDestinos)
From Ontario to Riverside
Search Deals
One-way flight from Ontario to Riverside
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Find flight deals from Ontario to Riverside

Cheapest flights from Ontario to Riverside
Explore the most affordable flight options available from Ontario to Riverside. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 2, 2025.

This Kiwi.com deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/97:30 amONT - LAX
1 stop5h 30mHawaiian Airlines
lun. 8/116:07 pmLAX - ONT
1 stop5h 52mHawaiian Airlines
Deal found 7/1$487
This Sembo deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Sembo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/22:21 pmONT - LAX
2 stops7h 32mMultiple Airlines
lun. 8/46:07 pmLAX - ONT
1 stop5h 52mMultiple Airlines
Deal found 6/30$706

Cheapflights Fare Finder

Customize your flight search to find flights from Ontario to Riverside 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, Cheapflights users made 2,558,603 searches. Data last updated julio 2, 2025.
Use the filters below to find and compare flights from Ontario to Riverside that are best for you.

Fly from

Ontario

Fly to

Riverside

Route

Depart

Return

Price

OntarioLos Angeles

ONT - LAX

ONTLAX

Ontario

sáb. 8/9

7:30 am-1:00 pm

1 stop5h 30m

Los Angeles

lun. 8/11

6:07 pm-11:59 pm

1 stop5h 52m

$487

OntarioLos Angeles

ONT - LAX

ONTLAX

Ontario

sáb. 8/2

2:21 pm-9:53 pm

2 stops7h 32m

Los Angeles

lun. 8/4

6:07 pm-11:59 pm

1 stop5h 52m

$706

OntarioLos Angeles

ONT - LAX

ONTLAX

Ontario

mar. 7/15

7:00 am-7:52 pm

1 stop12h 52m

$106

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/2

Best time to book a flight from Ontario to Riverside

Have a flexible travel schedule? Discover the best time to fly to Riverside from Ontario with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Ontario to Riverside

What is the cheapest month to book a flight from Ontario to Riverside?

Currently, January is the cheapest month in which you can book a flight from Ontario to Riverside (average of $246). Flying from Ontario to Riverside in March is currently the most expensive (average of $326). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Riverside

Get insights into the airlines that provide service to Riverside. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Riverside. Reviews last updated julio 2, 2025.
See what other customers who have flown with Hawaiian Airlines and Frontier from Ontario to Riverside have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Hawaiian Airlines
7.8
Good
2,540 reviews

Crew

8.5

Comfort

7.7

Entertainment

7.1

Overall

7.8

Boarding

8.0

Food

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Apr 2025

LAX - HNL

The whole experience was amazing. Recommend 100%. Keep up the great work!
Hawaiian Airlines
7.8
Good
2,540 reviews
Hawaiian Airlines
7.8
Good
2,540 reviews

Crew

8.5

Comfort

7.7

Entertainment

7.1

Overall

7.8

Boarding

8.0

Food

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Apr 2025

LAX - HNL

The whole experience was amazing. Recommend 100%. Keep up the great work!
Frontier
5.9
Fair
3,290 reviews
Hawaiian Airlines
7.8
Good
2,540 reviews

Crew

8.5

Comfort

7.7

Entertainment

7.1

Overall

7.8

Boarding

8.0

Food

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Apr 2025

LAX - HNL

The whole experience was amazing. Recommend 100%. Keep up the great work!

Related info for your journey

Find useful and relevant information for your journey from Ontario to Riverside. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Ontario to Riverside?

    If you book a flight to Riverside from Ontario, you will be flying from Ontario, which is the city’s only airport. Ontario (ONT) is located 3.1 mi from the center of Ontario. There are 0 flights from Ontario to Riverside per day from 0 different airlines.

  • Can I find deals for flights from Ontario to Riverside that include hotel bookings?

    Yes. In addition to deals on Ontario to Riverside flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Riverside?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Riverside.

  • Can I find deals for business class flights from Ontario to Riverside?

    Yes. Cheapflights offers flight deals from Ontario to Riverside by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Ontario to Riverside?

    Currently, January is the cheapest month in which you can book a flight from Ontario to Riverside (average of $246). Flying from Ontario to Riverside in March is currently the most expensive (average of $326). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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