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Niagara Falls

$88+ Cheap flights from Ontario (ONT) 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 1/18. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — YYZ
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheap flight deals from Ontario to Niagara Falls

Cheapest flights from Ontario to Niagara Falls
Explore the most affordable flight options available from Ontario to Niagara Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/16. 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 12/256:07 pmONT - YYZ
1 stop9h 13mMultiple Airlines
Mon 12/2910:15 pmYYZ - ONT
2 stops26h 02mMultiple Airlines
Deal found 12/16$664
This Trip.com deal was found by Cheapflights users on 12/16. 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.
Thu 12/256:00 amONT - YYZ
2 stops14h 11mMultiple Airlines
Thu 1/19:45 amYYZ - ONT
1 stop9h 22mMultiple Airlines
Deal found 12/16$668
This United Airlines deal was found by Cheapflights users on 12/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:00 amONT - YYZ
1 stop7h 52mUnited Airlines
Thu 1/13:30 pmYYZ - ONT
1 stop9h 55mUnited Airlines
Deal found 12/16$720
This Trip.com deal was found by Cheapflights users on 12/15. 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.
Thu 12/186:17 pmONT - YYZ
1 stop9h 30mMultiple Airlines
Tue 12/239:35 amYYZ - ONT
1 stop9h 15mMultiple Airlines
Deal found 12/15$802
This Mytrip deal was found by Cheapflights users on 12/17. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2212:50 pmONT - YYZ
2 stops20h 38mMultiple Airlines
Mon 12/291:30 pmYYZ - ONT
2 stops32h 14mMultiple Airlines
Deal found 12/17$810
This Alaska Airlines deal was found by Cheapflights users on 12/16. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/267:19 pmONT - YYZ
1 stop17h 16mAlaska Airlines
Mon 1/264:45 pmYYZ - ONT
1 stop25h 23mAlaska Airlines
Deal found 12/16$869
This United Airlines deal was found by Cheapflights users on 12/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/236:00 amONT - YYZ
1 stop7h 52mUnited Airlines
Fri 1/28:30 amYYZ - ONT
1 stop15h 37mUnited Airlines
Deal found 12/16$924
This Alaska Airlines deal was found by Cheapflights users on 12/17. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/244:36 pmONT - YYZ
1 stop19h 59mAlaska Airlines
Sun 1/114:45 pmYYZ - ONT
1 stop21h 14mAlaska Airlines
Deal found 12/17$935
This Alaska Airlines deal was found by Cheapflights users on 12/17. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/256:00 amONT - YYZ
1 stop30h 35mAlaska Airlines
Thu 1/84:45 pmYYZ - ONT
1 stop10h 11mAlaska Airlines
Deal found 12/17$964

Find flight deals from Ontario to Niagara Falls

Keep the following information in mind while searching for Ontario to Niagara Falls flight deals. Data was last updated December 18, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$224
(Kiwi.com)

One-way from

$88
(Trip.com)

Popular in

September

Cheapest in

June

Average price

$742
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 Ontario to Niagara Falls
Search Deals
One-way flight from Ontario to Niagara Falls
Search Deals
Highest demand for flights based on searches. 20% potential increase in price ($137 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($35 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario 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 December 18, 2025.
Use the filters below to find and compare flights from Ontario to Niagara Falls that are best for you.

Fly from

Ontario

Fly to

Niagara Falls

Route

Depart

Return

Price

OntarioToronto

ONT - YYZ

ONTYYZ

Ontario

Thu 1/29

3:22 pm-6:47 am

1 stop12h 25m

Toronto Pearson Intl

Mon 2/2

1:30 pm-1:37 pm

2 stops27h 07m

$224

OntarioToronto

ONT - YYZ

ONTYYZ

Ontario

Sun 1/25

8:27 pm-7:36 pm

2 stops20h 09m

Toronto Pearson Intl

Fri 1/30

8:00 pm-1:34 pm

1 stop20h 34m

$224

OntarioToronto

ONT - YYZ

ONTYYZ

Ontario

Sat 1/31

7:35 pm-6:20 am

1 stop7h 45m

Toronto Pearson Intl

Sat 2/7

7:55 pm-9:18 am

1 stop16h 23m

$272

OntarioToronto

ONT - YYZ

ONTYYZ

Ontario

Fri 1/16

10:18 pm-6:20 am

1 stop29h 02m

Toronto Pearson Intl

Sat 1/24

7:55 pm-9:18 am

1 stop16h 23m

$346

OntarioToronto

ONT - YYZ

ONTYYZ

Ontario

Tue 1/13

5:59 pm-3:35 pm

2 stops18h 36m

Toronto Pearson Intl

Tue 1/20

4:45 pm-7:16 pm

2 stops29h 31m

$372

OntarioToronto

ONT - YYZ

ONTYYZ

Ontario

Fri 1/23

4:03 pm-3:35 pm

1 stop20h 32m

Toronto Pearson Intl

Mon 1/26

4:45 pm-1:06 pm

2 stops23h 21m

$388

OntarioToronto

ONT - YYZ

ONTYYZ

Ontario

Wed 1/21

11:53 am-3:35 pm

1 stop24h 42m

Toronto Pearson Intl

Sat 1/24

4:45 pm-10:59 am

1 stop21h 14m

$390

OntarioToronto

ONT - YYZ

ONTYYZ

Ontario

Fri 1/30

1:46 pm-3:35 pm

2 stops22h 49m

Toronto Pearson Intl

Fri 2/6

4:45 pm-7:16 pm

2 stops29h 31m

$394

OntarioToronto

ONT - YYZ

ONTYYZ

Ontario

Fri 1/23

4:03 pm-3:35 pm

1 stop20h 32m

Toronto Pearson Intl

Sun 1/25

4:45 pm-1:06 pm

2 stops23h 21m

$399

OntarioToronto

ONT - YYZ

ONTYYZ

Ontario

Tue 3/10

6:14 am-3:35 pm

1 stop30h 21m

$167

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 18 results
1
2

Best time to book a flight from Ontario to Niagara Falls

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

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

Currently, June is the cheapest month in which you can book a flight from Ontario to Niagara Falls (average of $74). Flying from Ontario to Niagara Falls in November is currently the most expensive (average of $150). 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 ONT to NI4?

Find hourly flight availability from Ontario 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 December 18, 2025.

One of the essential ways to save on airfare from Ontario to Niagara Falls is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 21% on airfare.

How much does it cost to fly round-trip from Ontario to Niagara Falls?

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 December 18, 2025.
Get a feel of what it's like to fly with United Airlines, American Airlines, and Air Canada from Ontario 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.
United Airlines
7.4
Good
9,093 reviews

Entertainment

7.1

Food

6.6

Crew

8.1

Boarding

7.7

Overall

7.4

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
9,093 reviews
United Airlines
7.4
Good
9,093 reviews

Entertainment

7.1

Food

6.6

Crew

8.1

Boarding

7.7

Overall

7.4

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
American Airlines
7.2
Good
11,055 reviews
United Airlines
7.4
Good
9,093 reviews

Entertainment

7.1

Food

6.6

Crew

8.1

Boarding

7.7

Overall

7.4

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Air Canada
7.1
Good
10,534 reviews
United Airlines
7.4
Good
9,093 reviews

Entertainment

7.1

Food

6.6

Crew

8.1

Boarding

7.7

Overall

7.4

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Related info for your journey

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

    For a flight from Ontario to Niagara Falls, you will be flying from Ontario. Ontario (ONT) is just 3.1 mi from the center of the city. Ontario is the only Ontario airport and it handles 0 outbound flights to Niagara Falls per day. 3 airlines have flights to Niagara Falls from Ontario on a regular basis.

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

    The cheapest airlines for a one-way flight from Ontario to Niagara Falls are United Airlines ($141), American Airlines ($146), and Delta ($153).

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

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

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

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

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

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

    Currently, June is the cheapest month in which you can book a flight from Ontario to Niagara Falls (average of $74). Flying from Ontario to Niagara Falls in November is currently the most expensive (average of $150). 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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Top 3 airlines flying from Ontario to Niagara Falls

Discover the top 3 airlines that operate flights from Ontario 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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$105Average$588FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$279Average$522FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$458Average$742FlexibilityNo cancel feeOn-time71%

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