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Cheap flights from Ontario to Irvine from C$ 284

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 4/9. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — LAX
1 Aug — 8 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ontario to Irvine

Enter your travel dates to find the best prices.

Cheapest flights from Ontario to Irvine
Explore the most affordable flight options available from Ontario to Irvine. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 July 2026.

Thu 24/95:55 p.m.
YXU
-
LAX
2 stops25h 05m
WestJet
Mon 28/96:05 p.m.
LAX
-
YXU
1 stop8h 15m
WestJet
Deal found 27/6C$ 452
Sat 10/106:10 a.m.
YXU
-
LAX
1 stop18h 55m
WestJet
Thu 15/106:05 p.m.
LAX
-
YXU
1 stop8h 15m
WestJet
Deal found 30/6C$ 482
Mon 24/812:25 p.m.
YOW
-
LAX
2 stops12h 40m
WestJet
Sat 29/86:05 p.m.
LAX
-
YOW
1 stop8h 30m
WestJet
Deal found 1/7C$ 496
Thu 10/91:20 p.m.
YOW
-
LAX
1 stop11h 45m
WestJet
Wed 16/97:30 a.m.
LAX
-
YOW
1 stop8h 50m
WestJet
Deal found 1/7C$ 499
Thu 20/86:00 a.m.
YOW
-
LAX
1 stop9h 25m
WestJet
Sat 29/86:05 p.m.
LAX
-
YOW
1 stop8h 30m
WestJet
Deal found 28/6C$ 503
Mon 21/911:05 a.m.
YYZ
-
LAX
Nonstop5h 15m
Porter Airlines
Mon 5/102:20 p.m.
LAX
-
YYZ
Nonstop4h 40m
Porter Airlines
Deal found 28/6C$ 506
Wed 5/812:25 p.m.
YOW
-
LAX
2 stops12h 40m
WestJet
Wed 19/87:30 a.m.
LAX
-
YOW
2 stops13h 50m
WestJet
Deal found 28/6C$ 506
Fri 21/86:00 a.m.
YYZ
-
LAX
1 stop9h 25m
WestJet
Thu 27/83:00 p.m.
LAX
-
YYZ
2 stops11h 10m
WestJet
Deal found 28/6C$ 507
Tue 15/96:45 a.m.
YUL
-
LAX
2 stops13h 25m
WestJet
Sat 19/96:05 p.m.
LAX
-
YUL
1 stop10h 00m
WestJet
Deal found 28/6C$ 507
Fri 4/94:00 p.m.
YYZ
-
LAX
1 stop8h 35m
Air Canada
Sun 13/910:35 p.m.
LAX
-
YYZ
Nonstop4h 43m
Air Canada
Deal found 28/6C$ 509
Tue 22/96:55 a.m.
YOW
-
LAX
2 stops13h 15m
WestJet
Wed 30/96:05 p.m.
LAX
-
YOW
1 stop8h 30m
WestJet
Deal found 1/7C$ 509
Sat 12/127:00 p.m.
YYZ
-
LAX
Nonstop5h 34m
Air Canada
Sun 13/128:15 a.m.
LAX
-
YYZ
1 stop19h 55m
Air Canada
Deal found 27/6C$ 510

Find flight deals from Ontario to Irvine

Keep the following information in mind while searching for Ontario to Irvine flight deals. Data was last updated 2 July 2026.

Round-trip from

C$ 452

One-way from

C$ 284

Popular in

June

Cheapest in

September

Average price

C$ 601
WestJet
  • WestJet
  • 24/9-28/9
  • 3 total stops
  • 33h 20m total
  • Ontario to Irvine
Search Deals
WestJet
  • WestJet
  • 4/9
  • 2 total stops
  • 13h 00m total
  • Ontario to Irvine
Search Deals
Highest demand for flights based on searches. 17% potential increase in price (C$ 152 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 21 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Irvine 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 629,999 searches. Data last updated 2 July 2026.
Use the filters below to find and compare flights from Ontario to Irvine that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LondonLos Angeles

YXU - LAX

YXULAX

London

Thu 24/9

5:55 p.m.-4:00 p.m.

2 stops25h 05m

Los Angeles

Mon 28/9

6:05 p.m.-5:20 a.m.

1 stop8h 15m

C$ 452

TorontoLos Angeles

YYZ - LAX

YYZLAX

Toronto Pearson Intl

Fri 24/7

7:45 a.m.-4:17 p.m.

1 stop11h 32m

Los Angeles

Tue 28/7

11:50 a.m.-11:02 p.m.

1 stop8h 12m

C$ 515

TorontoLos Angeles

YYZ - LAX

YYZLAX

Toronto Pearson Intl

Wed 22/7

4:18 p.m.-10:55 p.m.

1 stop9h 37m

Los Angeles

Tue 28/7

5:00 a.m.-9:32 p.m.

1 stop13h 32m

C$ 515

TorontoLos Angeles

YYZ - LAX

YYZLAX

Toronto Pearson Intl

Wed 22/7

5:45 p.m.-9:45 p.m.

1 stop7h 00m

Los Angeles

Wed 29/7

11:00 a.m.-11:58 p.m.

1 stop9h 58m

C$ 515

TorontoLos Angeles

YKF - LAX

YKFLAX

Toronto Region of Waterloo Intl

Wed 16/9

8:40 p.m.-12:25 p.m.

1 stop18h 45m

Los Angeles

Tue 22/9

7:30 a.m.-7:50 p.m.

1 stop9h 20m

C$ 519

LondonLos Angeles

YXU - LAX

YXULAX

London

Sat 31/10

3:25 p.m.-8:04 p.m.

1 stop7h 39m

Los Angeles

Wed 4/11

7:20 a.m.-9:52 p.m.

2 stops11h 32m

C$ 525

TorontoLos Angeles

YKF - LAX

YKFLAX

Toronto Region of Waterloo Intl

Sun 20/9

8:40 p.m.-12:25 p.m.

1 stop18h 45m

Los Angeles

Fri 25/9

7:30 a.m.-7:50 p.m.

1 stop9h 20m

C$ 534

TorontoLos Angeles

YYZ - LAX

YYZLAX

Toronto Pearson Intl

Tue 21/7

5:45 p.m.-11:42 p.m.

1 stop8h 57m

Los Angeles

Sun 16/8

6:00 a.m.-5:24 p.m.

1 stop8h 24m

C$ 536

TorontoLos Angeles

YYZ - LAX

YYZLAX

Toronto Pearson Intl

Tue 14/7

7:24 p.m.-11:53 p.m.

1 stop7h 29m

Los Angeles

Wed 29/7

11:00 a.m.-11:58 p.m.

1 stop9h 58m

C$ 546

TorontoLos Angeles

YKF - LAX

YKFLAX

Toronto Region of Waterloo Intl

Wed 14/10

8:40 p.m.-12:25 p.m.

1 stop18h 45m

Los Angeles

Fri 30/10

5:45 p.m.-5:28 a.m.

1 stop8h 43m

C$ 550

Flights are sorted by cheapest round-trip flights first.

Deals found on 27/6

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Ontario to Irvine

Have a flexible travel schedule? Discover the best time to fly to Irvine 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 Irvine

What is the cheapest time of day to fly from ON to IR9?

Find hourly flight availability from Ontario to Irvine. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 2 July 2026.

A simple way to save on the total cost of your ticket is to fly from Region of Ontario to Irvine in the morning. If you’re flexible enough to do this you can expect to save up to 41% on your trip compared to booking a flight in the afternoon.

Weekly flight availability from Region of Ontario to Irvine

Explore weekly flight availability from Ontario to Irvine. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 2 July 2026.

The most flights from CAON to IR9 are scheduled on a Thursday (20 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (10 on average).

How much does it cost to fly round-trip from Region of Ontario to Irvine?

What is the cheapest day to fly from Region of Ontario to Irvine?

Use this chart to determine the cheapest time to fly round-trip from Ontario to Irvine. Price data was last updated on 27 June 2026.

Travelers seeking maximum savings on their Region of Ontario to Irvine flight should consider departing on Friday evenings when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Related info for your journey

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

  • How long is the flight from Region of Ontario to Irvine?

    Airlines like WestJet, Delta, and United Airlines fly from Region of Ontario to Irvine in about 9h 37m. The time it takes to get you to your destination can typically vary by up to 15h 28m. Region of Ontario and Irvine are separated by a distance of 3492 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the cheapest airlines to fly from Region of Ontario to Irvine one-way?

    One-way options have recently been found by users for as low as C$ 141 on WestJet. Other airlines that offer cheap prices include Porter Airlines from C$ 154 and Air Transat from C$ 182 one-way.

  • What are the most popular routes from Region of Ontario to Irvine?

    The most popular flight routes from Region of Ontario to Irvine are Toronto Pearson Intl - Los Angeles, Montreal Pierre Elliott Trudeau Intl - Los Angeles and Toronto Island - Los Angeles.

  • What are the most reliable airlines from Region of Ontario to Irvine?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Region of Ontario to Irvine on time: Porter Airlines (93%), American Airlines (93%), Air Transat (93%).

  • What are the cheapest flights from Region of Ontario to Irvine?

    While on average a flight from Region of Ontario to Irvine is generally C$ 1,653, our data shows the cheapest flight currently is C$ 274. When looking at the most popular route, (Toronto Pearson Intl - Los Angeles), you can expect to pay C$ 431 for that flight.

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

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

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

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

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

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

See more FAQs

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Alternative routes for Ontario to Irvine

See prices for flight routes from nearby airports that may be better suited for you.
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Top 8 airlines flying from Ontario to Irvine

Discover the top 8 airlines that operate flights from Ontario to Irvine. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 2 July 2026.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapestC$ 198AverageC$ 448FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Air CanadaCheapestC$ 220AverageC$ 646FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
American AirlinesCheapestC$ 227AverageC$ 580FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
DeltaCheapestC$ 240AverageC$ 479FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Porter AirlinesCheapestC$ 267AverageC$ 582FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air TransatCheapestC$ 317AverageC$ 611FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
United AirlinesCheapestC$ 321AverageC$ 706FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
APG AirlinesCheapestC$ 627AverageC$ 629FlexibilityNo cancel feeOn-timeN/A
Search APG Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Ontario to Irvine?

Deals for Ontario to Irvine flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Ontario to Irvine?

Millions of users choose and trust Cheapflights to book the best flight deals from Ontario to Irvine for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Ontario to Irvine with no change fees?

Yes, we can. To see specific flights from Ontario to Irvine with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Ontario to Irvine become cheaper?

Yes! Start tracking prices for Ontario to Irvine flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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