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Niagara Falls

$86+ Cheap flights from Irvine, CA to Niagara Falls, 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 10/16. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — YYZ
Oct 29 — Nov 51
Wed 10/29
Wed 11/5
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 89 days in advance, depart on a Thursday or Tuesday and return on a Thursday

Cheap 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 September 29, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$181
(Kiwi.com)

One-way from

$86
(Kiwi.com)

Popular in

December

Cheapest in

June

Average price

$288
Provider with most accurate pricing for Los Angeles-Toronto (YTO) flight deals.
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Provider most trusted by Cheapflights users for Los Angeles-Toronto (YTO) flights.
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From Irvine to Niagara Falls
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One-way flight from Irvine to Niagara Falls
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Highest demand for flights based on searches. 17% potential increase in price ($67 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find 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 September 29, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/27. 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 10/2211:10 pmLAX - YYZ
Nonstop4h 49mWestJet
Sat 10/251:30 pmYYZ - LAX
1 stop11h 16mWestJet
Deal found 9/27$181
This Trip.com deal was found by Cheapflights users on 9/27. 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.
Sat 10/187:00 amLAX - YYZ
2 stops14h 31mWestJet
Sat 10/258:00 amYYZ - LAX
2 stops13h 09mWestJet
Deal found 9/27$190
This Trip.com deal was found by Cheapflights users on 9/26. 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.
Mon 10/207:00 amLAX - YYZ
2 stops14h 31mWestJet
Wed 10/2212:00 pmYYZ - LAX
1 stop9h 09mWestJet
Deal found 9/26$191
This Kiwi.com deal was found by Cheapflights users on 9/27. 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.
Sat 10/187:00 amLAX - YYZ
2 stops14h 31mWestJet
Fri 10/247:45 pmYYZ - LAX
Nonstop5h 26mWestJet
Deal found 9/27$195
This Kiwi.com deal was found by Cheapflights users on 9/27. 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.
Fri 10/1712:35 pmLAX - YYZ
1 stop9h 08mWestJet
Tue 10/2111:00 amYYZ - LAX
1 stop9h 16mWestJet
Deal found 9/27$196
This Kiwi.com deal was found by Cheapflights users on 9/27. 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.
Sat 10/1111:40 amLAX - YYZ
1 stop9h 42mWestJet
Thu 10/1612:00 pmYYZ - LAX
2 stops12h 46mWestJet
Deal found 9/27$197
This Kiwi.com deal was found by Cheapflights users on 9/28. 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 10/127:00 amLAX - YYZ
1 stop10h 52mWestJet
Thu 10/1612:00 pmYYZ - LAX
2 stops12h 46mWestJet
Deal found 9/28$198
This Kiwi.com deal was found by Cheapflights users on 9/27. 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.
Sat 10/1112:35 pmLAX - YYZ
2 stops15h 17mWestJet
Sat 10/1812:00 pmYYZ - LAX
1 stop9h 09mWestJet
Deal found 9/27$199
This Kiwi.com deal was found by Cheapflights users on 9/27. 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 10/1511:40 amLAX - YYZ
1 stop9h 42mWestJet
Fri 10/179:00 amYYZ - LAX
1 stop11h 16mWestJet
Deal found 9/27$200
This Kiwi.com deal was found by Cheapflights users on 9/29. 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 10/167:00 amLAX - YYZ
2 stops14h 31mWestJet
Fri 10/1712:00 pmYYZ - LAX
1 stop9h 54mWestJet
Deal found 9/29$202

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 September 29, 2025.
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

Mon 10/27

5:30 am-5:19 pm

1 stop8h 49m

Toronto Pearson Intl

Wed 10/29

6:00 pm-12:31 am

1 stop9h 31m

$319

Los AngelesToronto

LAX - YYZ

LAXYYZ

Los Angeles

Wed 10/22

2:00 pm-9:50 pm

Nonstop4h 50m

Toronto Pearson Intl

Sat 10/25

10:40 am-1:00 pm

Nonstop5h 20m

$327

Los AngelesToronto

LAX - YYZ

LAXYYZ

Los Angeles

Tue 10/28

12:25 am-4:02 pm

1 stop12h 37m

Toronto Pearson Intl

Wed 10/29

6:55 pm-9:28 pm

Nonstop5h 33m

$331

Los AngelesToronto

LAX - YYZ

LAXYYZ

Los Angeles

Tue 11/11

9:00 am-3:35 pm

2 stops27h 35m

Toronto Pearson Intl

Tue 11/18

4:45 pm-10:37 am

2 stops20h 52m

$347

Los AngelesToronto

LAX - YYZ

LAXYYZ

Los Angeles

Sun 10/26

12:55 am-2:20 pm

1 stop10h 25m

Toronto Pearson Intl

Mon 11/3

6:55 pm-9:28 pm

Nonstop5h 33m

$354

Los AngelesToronto

LAX - YYZ

LAXYYZ

Los Angeles

Wed 11/5

12:25 am-9:58 am

1 stop6h 33m

Toronto Pearson Intl

Thu 11/27

6:55 pm-9:28 pm

Nonstop5h 33m

$354

Los AngelesToronto

LAX - YYZ

LAXYYZ

Los Angeles

Thu 10/23

12:56 am-2:30 pm

1 stop10h 34m

Toronto Pearson Intl

Tue 10/28

6:55 pm-9:28 pm

Nonstop5h 33m

$354

Los AngelesToronto

LAX - YYZ

LAXYYZ

Los Angeles

Tue 10/28

12:55 am-2:20 pm

1 stop10h 25m

Toronto Pearson Intl

Wed 11/5

6:55 pm-9:28 pm

Nonstop5h 33m

$354

Los AngelesToronto

LAX - YYZ

LAXYYZ

Los Angeles

Wed 10/29

12:25 am-2:01 pm

1 stop10h 36m

Toronto Pearson Intl

Thu 11/6

6:55 pm-9:28 pm

Nonstop5h 33m

$354

Los AngelesToronto

LAX - YYZ

LAXYYZ

Los Angeles

Wed 10/29

2:18 pm-3:35 pm

2 stops22h 17m

Toronto Pearson Intl

Wed 11/5

4:45 pm-7:36 am

2 stops17h 51m

$368

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/27

Showing 1-10 of 21 results
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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 September 26, 2025.

Booking 89 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, January is the cheapest month in which you can book a flight from Irvine to Niagara Falls (average of $243). Flying from Irvine to Niagara Falls in August is currently the most expensive (average of $348). 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 September 29, 2025.

When flying from Irvine to Niagara Falls, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 December 16, 2024.

Travelers seeking maximum savings on their Irvine to Niagara Falls flight should consider departing on Tuesday at noon 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 September 29, 2025.

The most flights from IR9 to NI4 are scheduled on a Monday (22 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (5 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 September 29, 2025.
Get a feel of what it's like to fly with Delta, Porter Airlines, 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.
Delta
8.0
Very good
7,964 reviews

Comfort

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,964 reviews
Delta
8.0
Very good
7,964 reviews

Comfort

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Porter Airlines
7.9
Good
371 reviews
Delta
8.0
Very good
7,964 reviews

Comfort

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,924 reviews
Delta
8.0
Very good
7,964 reviews

Comfort

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
WestJet
7.2
Good
3,110 reviews
Delta
8.0
Very good
7,964 reviews

Comfort

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Air Canada
7.1
Good
10,000 reviews
Delta
8.0
Very good
7,964 reviews

Comfort

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Entertainment

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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?

    Delta, Porter Airlines, and Alaska Airlines can get you from Irvine to Niagara Falls in just under 4h 50m. Your travel time can differ by up to 22h 45m. The distance between Irvine and Niagara Falls is about 2170 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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 $113 on Porter Airlines. Other airlines that offer cheap prices include Air Transat from $128 and Alaska Airlines from $128 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 Brussels Airlines (89%), Austrian Airlines (87%) and Porter Airlines (83%).

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

    On average you can expect to pay $1,055 for a flight from Irvine to Niagara Falls. The cheapest flight overall is $70 while the most popular route, (Los Angeles - Toronto Pearson Intl) is currently priced at $195.

  • 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, January is the cheapest month in which you can book a flight from Irvine to Niagara Falls (average of $243). Flying from Irvine to Niagara Falls in August is currently the most expensive (average of $348). 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 September 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapest$119Average$307FlexibilityNo cancel feeOn-time52%
WestJetCheapest$123Average$213FlexibilityNo cancel feeOn-time60%
United AirlinesCheapest$131Average$414FlexibilityNo cancel feeOn-time69%
DeltaCheapest$131Average$398FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$134Average$464FlexibilityNo cancel feeOn-time67%
Air TransatCheapest$177Average$353FlexibilityNo cancel feeOn-time50%
American AirlinesCheapest$235Average$556FlexibilityNo cancel feeOn-time71%

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