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Niagara Falls

$86+ Cheap flights from Illinois 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 2/23. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — YYZ
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheap flight deals from Illinois to Niagara Falls

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

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 12/319:20 pmORD - YYZ
Nonstop1h 39mUnited Airlines
Mon 1/56:40 pmYYZ - ORD
1 stop5h 55mUnited Airlines
Deal found 12/16$258
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/311:24 pmORD - YYZ
1 stop4h 33mUnited Airlines
Wed 12/319:00 pmYYZ - ORD
Nonstop2h 05mUnited Airlines
Deal found 12/17$285
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.
Wed 12/244:27 pmSTL - YYZ
1 stop20h 53mMultiple Airlines
Thu 1/85:15 pmYYZ - STL
1 stop15h 35mMultiple Airlines
Deal found 12/16$403
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.
Mon 12/297:00 amORD - YYZ
1 stop3h 19mMultiple Airlines
Fri 1/97:35 amYYZ - ORD
1 stop15h 29mMultiple Airlines
Deal found 12/16$408
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.
Fri 12/266:02 pmORD - YYZ
1 stop3h 48mMultiple Airlines
Thu 1/81:30 pmYYZ - ORD
2 stops33h 02mMultiple Airlines
Deal found 12/16$409
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.
Wed 12/243:51 pmORD - YYZ
2 stops21h 29mMultiple Airlines
Thu 1/87:35 amYYZ - ORD
1 stop27h 08mMultiple Airlines
Deal found 12/16$411
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.
Mon 12/297:00 amORD - YYZ
1 stop3h 19mWestJet
Sun 1/1110:15 pmYYZ - ORD
1 stop16h 20mWestJet
Deal found 12/16$413
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.
Sun 12/289:41 amORD - YYZ
1 stop5h 29mWestJet
Tue 1/1310:05 amYYZ - ORD
1 stop4h 03mWestJet
Deal found 12/16$415
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 12/256:02 pmORD - YYZ
1 stop3h 48mWestJet
Tue 1/67:45 amYYZ - ORD
1 stop6h 23mWestJet
Deal found 12/16$416
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.
Wed 12/316:08 pmMDW - YYZ
1 stop16h 11mWestJet
Mon 1/510:05 amYYZ - MDW
1 stop3h 43mWestJet
Deal found 12/16$416
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.
Sat 12/276:02 pmORD - YYZ
1 stop13h 56mMultiple Airlines
Thu 1/87:35 amYYZ - ORD
1 stop27h 08mMultiple Airlines
Deal found 12/16$417
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.
Wed 12/316:08 pmMDW - YYZ
1 stop16h 11mMultiple Airlines
Mon 1/58:30 pmYYZ - MDW
2 stops50h 47mMultiple Airlines
Deal found 12/16$431

Find flight deals from Illinois to Niagara Falls

Keep the following information in mind while searching for Illinois 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

$185
(American Airlines)

One-way from

$86
(American Airlines)

Popular in

January

Cheapest in

September

Average price

$301
Provider with most accurate pricing for Chicago (CHI)-Toronto (YTO) flight deals.
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Provider most trusted by Cheapflights users for Chicago (CHI)-Toronto (YTO) flights.
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From Illinois to Niagara Falls
Search Deals
One-way flight from Illinois to Niagara Falls
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($36 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois 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 Illinois to Niagara Falls that are best for you.

Fly from

Illinois

Fly to

Niagara Falls

Route

Depart

Return

Price

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Fri 2/13

6:28 pm-9:21 pm

Nonstop1h 53m

Toronto Pearson Intl

Fri 2/20

9:00 pm-10:04 pm

Nonstop2h 04m

$189

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Wed 2/11

1:13 pm-4:02 pm

Nonstop1h 49m

Toronto Pearson Intl

Wed 2/18

5:30 pm-6:40 pm

Nonstop2h 10m

$189

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Thu 2/12

11:11 am-2:01 pm

Nonstop1h 50m

Toronto Pearson Intl

Sat 2/14

8:45 am-9:50 am

Nonstop2h 05m

$189

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Sat 2/14

11:11 am-2:01 pm

Nonstop1h 50m

Toronto Pearson Intl

Sun 2/15

9:00 pm-10:04 pm

Nonstop2h 04m

$189

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Mon 2/9

6:28 pm-9:21 pm

Nonstop1h 53m

Toronto Pearson Intl

Thu 2/19

5:30 pm-6:40 pm

Nonstop2h 10m

$189

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Mon 2/9

1:13 pm-4:02 pm

Nonstop1h 49m

Toronto Pearson Intl

Mon 2/16

8:45 am-9:50 am

Nonstop2h 05m

$189

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Sat 2/14

11:11 am-2:01 pm

Nonstop1h 50m

Toronto Pearson Intl

Mon 2/16

8:45 am-9:50 am

Nonstop2h 05m

$189

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Thu 2/12

4:47 pm-7:45 pm

Nonstop1h 58m

Toronto Pearson Intl

Thu 2/19

8:45 am-9:50 am

Nonstop2h 05m

$189

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Tue 1/20

7:20 am-11:20 pm

1 stop15h 00m

Toronto Pearson Intl

Tue 1/27

7:35 am-10:04 pm

1 stop15h 29m

$193

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Wed 1/28

4:50 pm-7:45 pm

Nonstop1h 55m

Toronto Pearson Intl

Sun 2/1

11:00 am-12:08 pm

Nonstop2h 08m

$211

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 60 results
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Best time to book a flight from Illinois to Niagara Falls

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

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

Currently, March is the cheapest month in which you can book a flight from Illinois to Niagara Falls (average of $79). Flying from Illinois to Niagara Falls in December is currently the most expensive (average of $211). 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 IL to NI4?

Find hourly flight availability from Illinois 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.

Unlike at noon, when flights are generally more expensive, you can save up to 37% on flights from Illinois to Niagara Falls by exploring options for tickets in the evening.

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

Use this chart to determine the cheapest time to fly round-trip from Illinois to Niagara Falls. Price data was last updated on December 16, 2024.

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

Weekly flight availability from Illinois to Niagara Falls

Explore weekly flight availability from Illinois 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 December 18, 2025.

The most flights from USIL to NI4 are scheduled on a Wednesday (61 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (19 on average).

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

Related info for your journey

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

    Departing from Illinois to Niagara Falls will take you 1h 53m. Airlines will cover a distance of 436 mi. This flight may include one or multiple stops.

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

    To fly one-way, consider booking your trip with Air Canada, which is currently one of the cheapest options available, starting at $64. United Airlines flights start at $64 while deals on Porter Airlines start at $73 one-way.

  • What are the most popular routes from Illinois to Niagara Falls?

    The most popular flight routes from Illinois to Niagara Falls are Chicago O'Hare Intl - Toronto Pearson Intl, Chicago Midway - Toronto Pearson Intl and Lambert-St Louis - Toronto Pearson Intl.

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

    Before booking your flight to Niagara Falls from Illinois, check out the most reliable airlines to get you to your destination on time: Korean Air (89%), Japan Airlines (75%), SkyWest Airlines( 74%).

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

    The cheapest flight price from Illinois to Niagara Falls is $67. On average you can expect to pay $1,258. The most popular route, (Chicago O'Hare Intl - Toronto Pearson Intl), can usually be booked for $169.

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

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

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

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

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

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

    Currently, March is the cheapest month in which you can book a flight from Illinois to Niagara Falls (average of $79). Flying from Illinois to Niagara Falls in December is currently the most expensive (average of $211). 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 Illinois to Niagara Falls

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Illinois to Niagara Falls

Discover the top 4 airlines that operate flights from Illinois 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
Air CanadaCheapest$116Average$247FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$146Average$298FlexibilityNo cancel feeOn-time69%
Porter AirlinesCheapest$185Average$350FlexibilityNo cancel feeOn-time52%
American AirlinesCheapest$215Average$378FlexibilityNo cancel feeOn-time71%

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