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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 11/28. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — YYZ
dic. 3 — dic. 101
mié. 12/3
mié. 12/10
1 adult, Economy
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Find 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 noviembre 3, 2025.

This American Airlines deal was found by Cheapflights users on 11/3. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/26:06 amORD - YYZ
1 stop4h 48mAmerican Airlines
jue. 12/46:00 amYYZ - ORD
Nonstop2h 15mAmerican Airlines
Deal found 11/3$194
This Gotogate deal was found by Cheapflights users on 11/2. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/48:00 amORD - YYZ
Nonstop1h 40mAir Canada
dom. 12/76:20 amYYZ - ORD
1 stop5h 58mAir Canada
Deal found 11/2$198
This Flightnetwork deal was found by Cheapflights users on 11/3. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/58:15 pmORD - YYZ
Nonstop1h 39mAir Canada
dom. 12/76:20 amYYZ - ORD
1 stop5h 58mAir Canada
Deal found 11/3$199
This American Airlines deal was found by Cheapflights users on 11/3. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/59:39 amORD - YYZ
Nonstop1h 51mAmerican Airlines
lun. 12/812:36 pmYYZ - ORD
1 stop6h 03mAmerican Airlines
Deal found 11/3$200
This Flightnetwork deal was found by Cheapflights users on 11/2. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/122:00 pmORD - YYZ
Nonstop1h 39mAir Canada
dom. 12/146:30 pmYYZ - ORD
Nonstop2h 00mAir Canada
Deal found 11/2$202
This American Airlines deal was found by Cheapflights users on 11/2. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/45:00 amORD - YYZ
1 stop5h 02mAmerican Airlines
dom. 12/76:00 amYYZ - ORD
1 stop6h 03mAmerican Airlines
Deal found 11/2$209
This United Airlines deal was found by Cheapflights users on 11/3. 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.
jue. 12/259:20 pmORD - YYZ
Nonstop1h 39mUnited Airlines
dom. 1/118:55 amYYZ - ORD
Nonstop2h 06mUnited Airlines
Deal found 11/3$210
This Delta deal was found by Cheapflights users on 11/3. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/51:14 pmMDW - YYZ
1 stop3h 01mDelta
dom. 12/76:05 amYYZ - MDW
1 stop7h 29mDelta
Deal found 11/3$233
This Delta deal was found by Cheapflights users on 11/2. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/189:34 amMDW - YYZ
1 stop4h 14mDelta
lun. 11/246:30 amYYZ - MDW
1 stop7h 37mDelta
Deal found 11/2$250
This Delta deal was found by Cheapflights users on 11/2. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/171:47 pmMDW - YYZ
1 stop8h 34mDelta
vie. 11/2112:08 pmYYZ - MDW
1 stop7h 06mDelta
Deal found 11/2$268
This American Airlines deal was found by Cheapflights users on 11/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/165:15 amSTL - YYZ
1 stop9h 48mAmerican Airlines
mar. 12/236:23 pmYYZ - STL
1 stop15h 12mAmerican Airlines
Deal found 11/1$286
This Kiwi.com deal was found by Cheapflights users on 11/3. 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.
dom. 12/146:37 pmMDW - YYZ
1 stop28h 34mMultiple Airlines
jue. 1/16:00 amYYZ - MDW
1 stop6h 06mMultiple Airlines
Deal found 11/3$286

Cheap 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 noviembre 3, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$192
(Air Canada)

One-way from

$86
(American Airlines)

Popular in

January

Cheapest in

September

Average price

$312
Provider with most accurate pricing for Chicago (CHI)-Toronto (YTO) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Toronto (YTO) flights.
Search Deals
From Illinois to Niagara Falls
Search Deals
One-way flight from Illinois to Niagara Falls
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($34 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
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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 noviembre 3, 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

sáb. 1/24

6:00 am-4:35 pm

1 stop9h 35m

Toronto Pearson Intl

mié. 1/28

11:30 am-12:25 pm

Nonstop1h 55m

$194

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

mié. 11/26

5:00 am-11:03 am

1 stop5h 03m

Toronto Pearson Intl

mar. 12/2

11:59 am-3:56 pm

1 stop4h 57m

$209

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

lun. 1/19

6:50 am-4:12 pm

1 stop8h 22m

Toronto Pearson Intl

mié. 1/21

10:05 am-1:18 pm

1 stop4h 13m

$233

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

vie. 12/5

8:55 am-2:48 pm

1 stop4h 53m

Toronto Pearson Intl

mar. 12/9

12:13 pm-4:59 pm

1 stop5h 46m

$233

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

sáb. 3/28

10:35 am-3:20 pm

1 stop3h 45m

Toronto Pearson Intl

sáb. 4/4

3:59 pm-8:38 pm

1 stop5h 39m

$233

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

mié. 1/14

6:50 am-11:20 am

1 stop3h 30m

Toronto Pearson Intl

mié. 1/21

6:00 am-9:40 am

1 stop4h 40m

$233

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

jue. 12/11

6:45 am-11:25 am

1 stop3h 40m

Toronto Pearson Intl

dom. 12/14

5:15 pm-9:40 pm

1 stop5h 25m

$233

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

mar. 12/2

6:45 am-11:25 am

1 stop3h 40m

Toronto Pearson Intl

vie. 12/12

5:15 pm-9:40 pm

1 stop5h 25m

$233

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

vie. 12/5

8:55 am-2:48 pm

1 stop4h 53m

Toronto Pearson Intl

lun. 12/8

3:38 pm-6:27 pm

1 stop3h 49m

$233

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

dom. 1/18

11:05 am-7:08 pm

1 stop7h 03m

Toronto Pearson Intl

mié. 1/21

7:45 am-1:18 pm

1 stop6h 33m

$233

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/3

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 $106). Flying from Illinois to Niagara Falls in July is currently the most expensive (average of $173). 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 noviembre 3, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 35% 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 noviembre 3, 2025.

The most flights from USIL to NI4 are scheduled on a Monday (64 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (36 on average).

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 8h 22m. Airlines will cover a distance of 436 mi. This flight may include one or multiple stops.

  • 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: British Airways (100%), Japan Airlines (88%), Korean Air( 88%).

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

    The cheapest flight price from Illinois to Niagara Falls is $96. On average you can expect to pay $836. The most popular route, (Chicago O'Hare Intl - Toronto Pearson Intl), can usually be booked for $166.

  • 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 $106). Flying from Illinois to Niagara Falls in July is currently the most expensive (average of $173). 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 noviembre 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapest$109Average$270FlexibilityNo cancel feeOn-time52%
Air CanadaCheapest$118Average$264FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$146Average$311FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$223Average$388FlexibilityNo cancel feeOn-time71%

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