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Niagara Falls

$117+ Cheap flights from Irvine, CA to Niagara Falls, ON, Canada

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 3/16. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — YYZ
Mar 14 — Mar 211
Sat 3/14
Sat 3/21
1 adult, Economy
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Cheapflights Tip: The best prices from Irvine to Niagara Falls are usually found in June or May, booked 75 days in advance, depart on a Thursday or Wednesday and return on a Friday

Cheap flight deals from Irvine to Niagara Falls

Cheapest flights from Irvine to Niagara Falls
Explore the most affordable flight options available from Irvine to Niagara Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 12, 2026.

This Kiwi.com deal was found by Cheapflights users on 2/10. 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.
Mon 3/168:19 pm
LAX
-
YYZ
2 stops21h 52m
Multiple Airlines
Tue 3/2410:00 am
YYZ
-
LAX
Nonstop5h 39m
Multiple Airlines
Deal found 2/10$220
This Kiwi.com deal was found by Cheapflights users on 2/11. 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.
Wed 3/119:12 am
LAX
-
YYZ
3 stops17h 46m
Multiple Airlines
Tue 3/2410:00 am
YYZ
-
LAX
Nonstop5h 39m
Multiple Airlines
Deal found 2/11$222
This Kiwi.com deal was found by Cheapflights users on 2/10. 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.
Tue 3/316:30 pm
LAX
-
YYZ
3 stops26h 05m
Multiple Airlines
Wed 4/2210:00 am
YYZ
-
LAX
Nonstop5h 39m
Multiple Airlines
Deal found 2/10$223
This Kiwi.com deal was found by Cheapflights users on 2/10. 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.
Wed 4/11:39 pm
LAX
-
YYZ
2 stops26h 57m
Multiple Airlines
Wed 4/2210:00 am
YYZ
-
LAX
Nonstop5h 39m
Multiple Airlines
Deal found 2/10$226
This Kiwi.com deal was found by Cheapflights users on 2/10. 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.
Tue 3/316:30 pm
LAX
-
YYZ
3 stops26h 05m
Multiple Airlines
Fri 4/2410:00 am
YYZ
-
LAX
Nonstop5h 39m
Multiple Airlines
Deal found 2/10$227
This Kiwi.com deal was found by Cheapflights users on 2/10. 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.
Wed 3/116:30 pm
LAX
-
YYZ
2 stops22h 06m
Multiple Airlines
Wed 3/2510:00 am
YYZ
-
LAX
Nonstop5h 39m
Multiple Airlines
Deal found 2/10$228
This Kiwi.com deal was found by Cheapflights users on 2/10. 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.
Thu 5/73:00 pm
LAX
-
YYZ
2 stops11h 10m
WestJet
Fri 5/223:50 pm
YYZ
-
LAX
1 stop9h 05m
WestJet
Deal found 2/10$229
This Trip.com deal was found by Cheapflights users on 2/10. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/101:39 pm
LAX
-
YYZ
2 stops13h 34m
Multiple Airlines
Tue 3/179:40 am
YYZ
-
LAX
2 stops11h 50m
Multiple Airlines
Deal found 2/10$231
This Kiwi.com deal was found by Cheapflights users on 2/10. 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.
Sun 3/291:28 pm
LAX
-
YYZ
1 stop14h 15m
Multiple Airlines
Tue 4/2110:00 am
YYZ
-
LAX
Nonstop5h 39m
Multiple Airlines
Deal found 2/10$232

Find flight deals from Irvine to Niagara Falls

Keep the following information in mind while searching for Irvine to Niagara Falls flight deals. Data was last updated February 12, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$220
(Kiwi.com)

One-way from

$117
(Mytrip)

Popular in

December

Cheapest in

June

Average price

$327
Provider with most accurate pricing for Los Angeles-Toronto (YTO) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Los Angeles-Toronto (YTO) flights.
Search Deals
From Irvine to Niagara Falls
Search Deals
One-way flight from Irvine to Niagara Falls
Search Deals
Highest demand for flights based on searches. 22% potential increase in price ($95 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Irvine to Niagara Falls 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 February 12, 2026.
Use the filters below to find and compare flights from Irvine to Niagara Falls that are best for you.

Fly from

Irvine

Fly to

Niagara Falls

Route

Depart

Return

Price

Los AngelesToronto

LAX - YYZ

LAXYYZ

Los Angeles

Sat 5/9

7:30 am-11:59 pm

2 stops13h 29m

Toronto Pearson Intl

Sun 5/17

6:15 am-12:25 pm

1 stop9h 10m

$230

Los AngelesToronto

LAX - YYZ

LAXYYZ

Los Angeles

Thu 4/30

6:05 pm-5:45 am

1 stop8h 40m

Toronto Pearson Intl

Mon 5/4

7:00 am-2:05 pm

1 stop10h 05m

$236

Los AngelesToronto

LAX - YYZ

LAXYYZ

Los Angeles

Thu 6/18

7:30 am-11:59 pm

2 stops13h 29m

Toronto Pearson Intl

Sun 6/21

6:15 am-12:25 pm

1 stop9h 10m

$241

Los AngelesToronto

LAX - YYZ

LAXYYZ

Los Angeles

Sun 3/29

4:07 pm-6:43 am

1 stop11h 36m

Toronto Pearson Intl

Sun 4/5

8:00 pm-7:21 am

1 stop14h 21m

$245

Los AngelesToronto

LAX - YYZ

LAXYYZ

Los Angeles

Wed 6/24

7:30 am-9:35 pm

2 stops11h 05m

Toronto Pearson Intl

Mon 6/29

6:15 am-12:25 pm

1 stop9h 10m

$247

Los AngelesToronto

LAX - YYZ

LAXYYZ

Los Angeles

Thu 4/23

11:50 am-11:55 pm

1 stop9h 05m

Toronto Pearson Intl

Mon 4/27

7:00 am-2:05 pm

1 stop10h 05m

$250

Los AngelesToronto

LAX - YYZ

LAXYYZ

Los Angeles

Mon 6/1

7:30 am-9:35 pm

2 stops11h 05m

Toronto Pearson Intl

Thu 6/4

9:40 am-11:55 am

Nonstop5h 15m

$260

Los AngelesToronto

LAX - YYZ

LAXYYZ

Los Angeles

Thu 4/30

1:15 pm-1:05 am

1 stop8h 50m

Toronto Pearson Intl

Mon 5/4

9:40 am-11:55 am

Nonstop5h 15m

$262

Los AngelesToronto

LAX - YYZ

LAXYYZ

Los Angeles

Fri 3/13

8:19 pm-6:43 am

1 stop7h 24m

$122

Los AngelesToronto

LAX - YYZ

LAXYYZ

Los Angeles

Mon 7/6

7:30 am-6:55 pm

1 stop8h 25m

$122

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/11

Showing 1-10 of 19 results
1
2

Best time to book a flight from Irvine to Niagara Falls

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

How far ahead should I book a flight from Irvine to Niagara Falls?

Use this chart to determine the optimal time to book a round-trip flight from Irvine to Niagara Falls. Price data was last updated on February 6, 2026.

Booking 75 days in advance of your planned departure date is, on average, the best time to get cheap flights from Irvine to Niagara Falls. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Irvine to Niagara Falls?

Currently, June is the cheapest month in which you can book a flight from Irvine to Niagara Falls (average of $74). Flying from Irvine to Niagara Falls in December is currently the most expensive (average of $188). 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.

What is the cheapest time of day to fly from IR9 to NI4?

Find hourly flight availability from Irvine to Niagara Falls. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 12, 2026.

It’s typically best to fly out from Irvine to Niagara Falls at noon. Doing so could potentially save you 48% on the flight price compared to flying in the morning, which is usually more expensive.

What is the cheapest day to fly from Irvine to Niagara Falls?

Use this chart to determine the cheapest time to fly round-trip from Irvine to Niagara Falls. Price data was last updated on February 7, 2026.

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

Weekly flight availability from Irvine to Niagara Falls

Explore weekly flight availability from Irvine to Niagara Falls. 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 February 12, 2026.

The most flights from IR9 to NI4 are scheduled on a Monday (19 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (10 on average).

Reviews of airlines servicing Niagara Falls

Get insights into the airlines that provide service to Niagara Falls. 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 Niagara Falls. Reviews last updated February 12, 2026.
Get a feel of what it's like to fly with Porter Airlines, Delta, and United Airlines from Irvine to Niagara Falls by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
7.9
Good
415 reviews

Overall

7.9

Food

7.5

Boarding

8.2

Crew

8.6

Comfort

7.9

Entertainment

6.9

Reviews

1 / 20
2.0
Mediocre

Milad,Feb 2026

LIR - YYZ

Not helpful staff at Liberia airport at the check-in counter. Extremely poor skill people and not willing to help the passenger.
Porter Airlines
7.9
Good
415 reviews
Porter Airlines
7.9
Good
415 reviews

Overall

7.9

Food

7.5

Boarding

8.2

Crew

8.6

Comfort

7.9

Entertainment

6.9

Reviews

1 / 20
2.0
Mediocre

Milad,Feb 2026

LIR - YYZ

Not helpful staff at Liberia airport at the check-in counter. Extremely poor skill people and not willing to help the passenger.
Delta
7.9
Good
8,180 reviews
Porter Airlines
7.9
Good
415 reviews

Overall

7.9

Food

7.5

Boarding

8.2

Crew

8.6

Comfort

7.9

Entertainment

6.9

Reviews

1 / 20
2.0
Mediocre

Milad,Feb 2026

LIR - YYZ

Not helpful staff at Liberia airport at the check-in counter. Extremely poor skill people and not willing to help the passenger.
United Airlines
7.4
Good
9,279 reviews
Porter Airlines
7.9
Good
415 reviews

Overall

7.9

Food

7.5

Boarding

8.2

Crew

8.6

Comfort

7.9

Entertainment

6.9

Reviews

1 / 20
2.0
Mediocre

Milad,Feb 2026

LIR - YYZ

Not helpful staff at Liberia airport at the check-in counter. Extremely poor skill people and not willing to help the passenger.
WestJet
7.2
Good
3,256 reviews
Porter Airlines
7.9
Good
415 reviews

Overall

7.9

Food

7.5

Boarding

8.2

Crew

8.6

Comfort

7.9

Entertainment

6.9

Reviews

1 / 20
2.0
Mediocre

Milad,Feb 2026

LIR - YYZ

Not helpful staff at Liberia airport at the check-in counter. Extremely poor skill people and not willing to help the passenger.
Air Canada
7.1
Good
10,709 reviews
Porter Airlines
7.9
Good
415 reviews

Overall

7.9

Food

7.5

Boarding

8.2

Crew

8.6

Comfort

7.9

Entertainment

6.9

Reviews

1 / 20
2.0
Mediocre

Milad,Feb 2026

LIR - YYZ

Not helpful staff at Liberia airport at the check-in counter. Extremely poor skill people and not willing to help the passenger.

Related info for your journey

Find useful and relevant information for your journey from Irvine to Niagara Falls. 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 Irvine to Niagara Falls?

    WestJet can get you from Irvine to Niagara Falls in just under 13h 29m. Your travel time can differ by up to . The distance between Irvine and Niagara Falls is about 2170 mi.

  • What are the cheapest airlines to fly from Irvine to Niagara Falls one-way?

    One-way options have recently been found by users for as low as $62 on WestJet. Other airlines that offer cheap prices include Porter Airlines from $81 and United Airlines from $84 one-way.

  • What are the most reliable airlines from Irvine to Niagara Falls?

    The top 3 most reliable airlines when flying from Irvine to Niagara Falls are Austrian Airlines (91%), United Airlines (49%) and Air New Zealand (49%).

  • What are the cheapest flights from Irvine to Niagara Falls?

    On average you can expect to pay $1,294 for a flight from Irvine to Niagara Falls. The cheapest flight overall is $116 while the most popular route, (Los Angeles - Toronto Pearson Intl) is currently priced at $223.

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

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

  • How can I find direct flights from Irvine to Niagara Falls?

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

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

    Yes. Cheapflights offers flight deals from Irvine to Niagara Falls 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 Irvine to Niagara Falls?

    Currently, June is the cheapest month in which you can book a flight from Irvine to Niagara Falls (average of $74). Flying from Irvine to Niagara Falls in December is currently the most expensive (average of $188). 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.

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Alternative routes for Irvine to Niagara Falls

See prices for flight routes from nearby airports that may be better suited for you.
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Top 7 airlines flying from Irvine to Niagara Falls

Discover the top 7 airlines that operate flights from Irvine to Niagara Falls. 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 2,558,603 searches. Data last updated February 12, 2026.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapest$100Average$199FlexibilityNo cancel feeOn-time60%
United AirlinesCheapest$101Average$451FlexibilityNo cancel feeOn-time69%
Porter AirlinesCheapest$102Average$276FlexibilityNo cancel feeOn-time52%
Air TransatCheapest$114Average$333FlexibilityNo cancel feeOn-time50%
Air CanadaCheapest$122Average$517FlexibilityNo cancel feeOn-time67%
DeltaCheapest$122Average$370FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$256Average$494FlexibilityNo cancel feeOn-time71%

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