HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Niagara Falls

$101+ Cheap flights from Ontario (ONT) 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 10/8. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — YYZ
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Ontario to Niagara Falls with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap 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 September 16, 2025.

Round-trip from

$260
(Kiwi.com)

One-way from

$101
(Trip.com)

Popular in

August

Cheapest in

October

Average price

$544
From Ontario to Niagara Falls
Search Deals
One-way flight from Ontario to Niagara Falls
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($68 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($21 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

Find 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 September 16, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/14. 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 10/166:05 amONT - YYZ
1 stop10h 53mMultiple Airlines
Sun 10/196:30 amYYZ - ONT
2 stops28h 17mMultiple Airlines
Deal found 9/14$260
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 10/236:05 amONT - YYZ
1 stop10h 53mMultiple Airlines
Sat 10/258:00 amYYZ - ONT
2 stops30h 08mMultiple Airlines
Deal found 9/14$275
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 11/37:44 pmONT - YYZ
1 stop7h 36mMultiple Airlines
Tue 11/111:30 pmYYZ - ONT
2 stops34h 12mMultiple Airlines
Deal found 9/14$277
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/307:44 pmONT - YYZ
2 stops20h 52mMultiple Airlines
Thu 11/69:45 amYYZ - ONT
1 stop15h 10mMultiple Airlines
Deal found 9/15$283
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 10/2010:50 pmONT - YYZ
2 stops21h 03mMultiple Airlines
Tue 10/289:35 amYYZ - ONT
1 stop14h 07mMultiple Airlines
Deal found 9/14$289
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 10/3010:05 amONT - YYZ
1 stop9h 55mMultiple Airlines
Mon 11/31:30 pmYYZ - ONT
2 stops34h 12mMultiple Airlines
Deal found 9/14$293
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/77:44 pmONT - YYZ
1 stop7h 36mMultiple Airlines
Tue 11/111:30 pmYYZ - ONT
2 stops34h 12mMultiple Airlines
Deal found 9/15$303
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/77:44 pmONT - YYZ
1 stop7h 36mMultiple Airlines
Wed 11/121:30 pmYYZ - ONT
2 stops22h 40mMultiple Airlines
Deal found 9/15$304

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 September 16, 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

Fri 10/24

7:10 am-3:00 pm

2 stops28h 50m

Toronto Pearson Intl

Tue 10/28

4:45 pm-9:58 am

2 stops20h 13m

$447

OntarioToronto

ONT - YYZ

ONTYYZ

Ontario

Mon 10/20

7:10 am-3:00 pm

2 stops28h 50m

Toronto Pearson Intl

Tue 10/28

4:45 pm-9:58 am

2 stops20h 13m

$457

OntarioToronto

ONT - YYZ

ONTYYZ

Ontario

Mon 11/3

6:11 pm-3:35 pm

1 stop18h 24m

Toronto Pearson Intl

Tue 11/11

4:45 pm-5:09 pm

2 stops27h 24m

$462

OntarioToronto

ONT - YYZ

ONTYYZ

Ontario

Thu 1/29

6:55 pm-3:35 pm

1 stop17h 40m

Toronto Pearson Intl

Tue 2/3

4:45 pm-10:37 pm

1 stop8h 52m

$483

OntarioToronto

ONT - YYZ

ONTYYZ

Ontario

Tue 11/4

6:03 pm-3:35 pm

2 stops18h 32m

Toronto Pearson Intl

Fri 11/14

4:45 pm-8:53 pm

1 stop31h 08m

$483

OntarioToronto

ONT - YYZ

ONTYYZ

Ontario

Thu 11/20

11:59 am-3:35 pm

1 stop24h 36m

Toronto Pearson Intl

Sat 11/22

4:45 pm-11:59 pm

1 stop10h 14m

$483

OntarioToronto

ONT - YYZ

ONTYYZ

Ontario

Fri 10/31

4:11 pm-3:35 pm

1 stop20h 24m

Toronto Pearson Intl

Fri 11/7

4:45 pm-3:17 pm

1 stop25h 32m

$483

OntarioToronto

ONT - YYZ

ONTYYZ

Ontario

Tue 1/6

8:00 am-7:36 pm

2 stops32h 36m

$161

OntarioToronto

ONT - YYZ

ONTYYZ

Ontario

Tue 1/6

7:18 pm-3:35 pm

1 stop17h 17m

$203

OntarioToronto

ONT - YYZ

ONTYYZ

Ontario

Sat 10/18

7:10 am-3:00 pm

2 stops28h 50m

$210

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 19 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, January is the cheapest month in which you can book a flight from Ontario to Niagara Falls (average of $243). Flying from Ontario 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 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 September 16, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ontario to Niagara Falls as you normally would.

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 16, 2025.
Get a feel of what it's like to fly with Delta, United Airlines, and American Airlines 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.
Delta
8.0
Very good
7,957 reviews

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

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
7,957 reviews
Delta
8.0
Very good
7,957 reviews

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

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
7,957 reviews

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

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.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,957 reviews

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

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
7,957 reviews

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

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 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. 4 airlines have flights to Niagara Falls from Ontario on a regular basis.

  • How long is the flight from Ontario to Niagara Falls?

    For as low as $447, Alaska Airlines can have you in Niagara Falls from Ontario in 28h 50m. The distance between Ontario and Niagara Falls is about 2126 mi.

  • 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, January is the cheapest month in which you can book a flight from Ontario to Niagara Falls (average of $243). Flying from Ontario 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Ontario to Niagara Falls

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Pearson Intl flights
San Francisco to Pearson Intl flights
Los Angeles to Pierre Elliott Trudeau Intl flights
San Francisco to Pierre Elliott Trudeau Intl flights
Los Angeles to Toronto Island flights
San Diego to Pearson Intl flights
Los Angeles to Hamilton flights
San Francisco to Toronto Island flights
Santa Ana to Pearson Intl flights
San Francisco to Hamilton flights
Ontario to Pearson Intl flights
San Jose to Pearson Intl flights
Las Vegas to Pearson Intl flights
Sacramento to Pearson Intl flights
Los Angeles to Region of Waterloo Intl flights
Oakland to Pearson Intl flights
San Francisco to Region of Waterloo Intl flights
San Diego to Pierre Elliott Trudeau Intl flights
Ontario to Pierre Elliott Trudeau Intl flights
Los Angeles to Ottawa flights
San Diego to Toronto Island flights
Fresno to Pearson Intl flights
Las Vegas to Pierre Elliott Trudeau Intl flights
San Jose to Pierre Elliott Trudeau Intl flights
Santa Ana to Hamilton flights
Las Vegas to Toronto Island flights
Santa Ana to Pierre Elliott Trudeau Intl flights
Sacramento to Pierre Elliott Trudeau Intl flights
Burbank to Pearson Intl flights
San Diego to Hamilton flights
Burbank to Pierre Elliott Trudeau Intl flights
Oakland to Pierre Elliott Trudeau Intl flights
Santa Rosa to Pearson Intl flights
Bakersfield to Pearson Intl flights
Reno to Pearson Intl flights
Ontario to Ottawa flights
Las Vegas to Ottawa flights
Palm Springs to Pearson Intl flights
San Diego to Region of Waterloo Intl flights
San Francisco to Ottawa flights
Long Beach to Pearson Intl flights
Las Vegas to Hamilton flights
Sacramento to Ottawa flights
Fresno to Pierre Elliott Trudeau Intl flights
Medford to Pearson Intl flights
Las Vegas to Region of Waterloo Intl flights
San Jose to Hamilton flights

Top 4 airlines flying from Ontario to Niagara Falls

Discover the top 4 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 September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$131Average$476FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$295Average$370FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$317Average$742FlexibilityNo cancel feeOn-time71%
DeltaCheapest$329Average$413FlexibilityNo cancel feeOn-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.