HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Niagara Falls

$103+ Cheap flights from Illinois 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 5/13. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — YYZ
Apr 8 — Apr 151
Tue 4/8
Tue 4/15
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Illinois 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 Illinois to Niagara Falls

Keep the following information in mind while searching for Illinois to Niagara Falls flight deals. Data was last updated April 3, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$196
(Flightnetwork)

One-way from

$103
(Air Canada)

Popular in

March

Cheapest in

April

Average price

$271
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. 6% potential increase in price ($23 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
Search Deals

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 April 3, 2025.

This Flightnetwork deal was found by Cheapflights users on 4/1. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/1612:00 pmORD - YYZ
Nonstop1h 38mAir Canada
Fri 5/231:00 pmYYZ - ORD
Nonstop2h 01mAir Canada
Deal found 4/1$196
This United Airlines deal was found by Cheapflights users on 4/2. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/1512:00 pmORD - YYZ
Nonstop1h 38mUnited Airlines
Sun 5/1812:00 pmYYZ - ORD
Nonstop1h 55mUnited Airlines
Deal found 4/2$243
This Mytrip deal was found by Cheapflights users on 4/2. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/115:07 pmORD - YYZ
1 stop19h 48mMultiple Airlines
Wed 4/1612:30 pmYYZ - ORD
1 stop20h 34mMultiple Airlines
Deal found 4/2$251
This Delta deal was found by Cheapflights users on 4/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/91:35 pmORD - YYZ
1 stop8h 23mDelta
Wed 9/175:00 pmYYZ - ORD
1 stop6h 37mDelta
Deal found 4/1$266
This Delta deal was found by Cheapflights users on 4/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/92:00 pmMDW - YYZ
1 stop7h 55mDelta
Tue 9/166:00 amYYZ - MDW
1 stop7h 32mDelta
Deal found 4/1$266
This American Airlines deal was found by Cheapflights users on 4/2. 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.
Wed 4/306:45 amORD - YYZ
1 stop7h 55mAmerican Airlines
Wed 5/711:32 amYYZ - ORD
Nonstop1h 55mAmerican Airlines
Deal found 4/2$280
This Kiwi.com deal was found by Cheapflights users on 4/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/154:57 pmSTL - YYZ
1 stop17h 48mMultiple Airlines
Tue 4/229:50 amYYZ - STL
1 stop8h 25mMultiple Airlines
Deal found 4/1$294
This Kiwi.com deal was found by Cheapflights users on 4/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/84:40 pmMDW - YYZ
1 stop18h 05mMultiple Airlines
Sat 4/1210:15 amYYZ - MDW
1 stop13h 21mMultiple Airlines
Deal found 4/1$296
This Priceline deal was found by Cheapflights users on 4/1. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/21:16 pmMDW - YYZ
1 stop8h 59mWestJet
Sat 5/36:10 pmYYZ - MDW
1 stop5h 12mWestJet
Deal found 4/1$345
This Priceline deal was found by Cheapflights users on 4/2. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/1911:05 amORD - YYZ
1 stop5h 10mWestJet
Mon 6/238:00 pmYYZ - ORD
2 stops15h 08mWestJet
Deal found 4/2$374
This Ticket deal was found by Cheapflights users on 4/1. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/17:30 amSTL - YYZ
Nonstop1h 55mAir Canada
Sun 5/43:00 pmYYZ - STL
1 stop5h 58mAir Canada
Deal found 4/1$403
This Delta deal was found by Cheapflights users on 4/2. 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.
Tue 5/276:00 amSTL - YYZ
1 stop9h 10mDelta
Wed 7/96:15 amYYZ - STL
1 stop15h 39mDelta
Deal found 4/2$435

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 April 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

Fri 5/16

12:00 pm-2:38 pm

Nonstop1h 38m

Toronto Pearson Intl

Fri 5/23

1:00 pm-2:01 pm

Nonstop2h 01m

$196

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Thu 5/15

12:00 pm-2:38 pm

Nonstop1h 38m

Toronto Pearson Intl

Sun 5/18

12:00 pm-12:55 pm

Nonstop1h 55m

$243

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Fri 4/11

5:07 pm-1:55 pm

1 stop19h 48m

Toronto Pearson Intl

Wed 4/16

12:30 pm-8:04 am

1 stop20h 34m

$251

ChicagoToronto

MDW - YYZ

MDWYYZ

Chicago Midway

Tue 9/9

2:00 pm-10:55 pm

1 stop7h 55m

Toronto Pearson Intl

Tue 9/16

6:00 am-12:32 pm

1 stop7h 32m

$266

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Thu 5/15

7:10 am-11:25 am

1 stop3h 15m

Toronto Pearson Intl

Wed 5/21

6:15 am-1:43 pm

1 stop8h 28m

$267

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Wed 4/30

6:45 am-3:40 pm

1 stop7h 55m

Toronto Pearson Intl

Wed 5/7

11:32 am-12:27 pm

Nonstop1h 55m

$280

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Tue 4/15

4:57 pm-11:45 am

1 stop17h 48m

Toronto Pearson Intl

Tue 4/22

9:50 am-5:15 pm

1 stop8h 25m

$294

ChicagoToronto

MDW - YYZ

MDWYYZ

Chicago Midway

Wed 4/16

3:00 pm-11:54 pm

1 stop7h 54m

Toronto Pearson Intl

Sat 4/19

7:25 pm-5:33 am

1 stop11h 08m

$311

ChicagoToronto

MDW - YYZ

MDWYYZ

Chicago Midway

Fri 5/2

1:16 pm-11:15 pm

1 stop8h 59m

Toronto Pearson Intl

Sat 5/3

6:10 pm-10:22 pm

1 stop5h 12m

$345

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Thu 6/19

11:05 am-5:15 pm

1 stop5h 10m

Toronto Pearson Intl

Mon 6/23

8:00 pm-10:08 am

2 stops15h 08m

$374

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/2

Showing 1-10 of 34 results
1
2
3
4

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, January is the cheapest month in which you can book a flight from Illinois to Niagara Falls (average of $243). Flying from Illinois to Niagara Falls in July is currently the most expensive (average of $359). 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 April 3, 2025.

When flying from Illinois 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.

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 April 3, 2025.

The most flights from USIL to NI4 are scheduled on a Thursday (54 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (27 on average).

Rainfall in Niagara Falls by month

Plan your trip to Niagara Falls by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Niagara Falls ranges from 2.0 - 3.3 inches per month. June is typically the wettest month, when rainfall can reach 3.3 in. February is typically the driest time to visit Niagara Falls when rainfall is around 2.0 in.

Temperature in Niagara Falls by month

Plan your trip to Niagara Falls by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Niagara Falls, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 21.2 F).

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 April 3, 2025.
See what other customers who have flown with Alaska Airlines, Delta and Porter Airlines from Illinois to Niagara Falls have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,827 reviews

Boarding

8.2

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Alaska Airlines
8.0
Very good
9,827 reviews
Alaska Airlines
8.0
Very good
9,827 reviews

Boarding

8.2

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Delta
8.0
Very good
7,897 reviews
Alaska Airlines
8.0
Very good
9,827 reviews

Boarding

8.2

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Porter Airlines
7.9
Good
279 reviews
Alaska Airlines
8.0
Very good
9,827 reviews

Boarding

8.2

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
United Airlines
7.4
Good
8,619 reviews
Alaska Airlines
8.0
Very good
9,827 reviews

Boarding

8.2

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,827 reviews

Boarding

8.2

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

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.

  • 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 $103. Delta flights start at $106 while deals on United Airlines start at $107 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: Sun Country Air (100%), Korean Air (85%), Air New Zealand( 77%).

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

    The cheapest flight price from Illinois to Niagara Falls is $111. On average you can expect to pay $1,738. The most popular route, (Chicago O'Hare Intl - Toronto Pearson Intl), can usually be booked for $213.

  • 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, January is the cheapest month in which you can book a flight from Illinois to Niagara Falls (average of $243). Flying from Illinois to Niagara Falls in July is currently the most expensive (average of $359). 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 Illinois to Niagara Falls

See prices for flight routes from nearby airports that may be better suited for you.
Newark to Pearson Intl flights
LaGuardia to Pearson Intl flights
John F Kennedy Intl to Pearson Intl flights
Newark to Toronto Island flights
Newark to Pierre Elliott Trudeau Intl flights
LaGuardia to Pierre Elliott Trudeau Intl flights
Los Angeles to Pearson Intl flights
John F Kennedy Intl to Pierre Elliott Trudeau Intl flights
Boston to Pearson Intl flights
O'Hare Intl to Pearson Intl flights
San Francisco to Pearson Intl flights
Dulles Intl to Pearson Intl flights
Dulles Intl to Pierre Elliott Trudeau Intl flights
Dallas/Fort Worth to Pearson Intl flights
Seattle to Pearson Intl flights
O'Hare Intl to Pierre Elliott Trudeau Intl flights
Atlanta to Pearson Intl flights
Reagan-National to Pearson Intl flights
Boston to Toronto Island flights
Reagan-National to Pierre Elliott Trudeau Intl flights
Los Angeles to Pierre Elliott Trudeau Intl flights
Dallas/Fort Worth to Pierre Elliott Trudeau Intl flights
San Francisco to Pierre Elliott Trudeau Intl flights
Boston to Pierre Elliott Trudeau Intl flights
Hobby to Pearson Intl flights
Denver to Pierre Elliott Trudeau Intl flights
Philadelphia to Pearson Intl flights
Atlanta to Pierre Elliott Trudeau Intl flights
Minneapolis to Pierre Elliott Trudeau Intl flights
Seattle to Pierre Elliott Trudeau Intl flights
John F Kennedy Intl to Toronto Island flights
George Bush Intcntl to Pearson Intl flights
Baltimore to Pierre Elliott Trudeau Intl flights
Dulles Intl to Toronto Island flights
Baltimore to Pearson Intl flights
Fort Lauderdale to Pierre Elliott Trudeau Intl flights
Minneapolis to Pearson Intl flights
Denver to Pearson Intl flights
Austin to Pearson Intl flights
Midway to Toronto Island flights
Fort Lauderdale to Pearson Intl flights
Raleigh to Pearson Intl flights
Orlando to Pearson Intl flights
Midway to Pearson Intl flights
O'Hare Intl to Toronto Island flights
Tampa to Pearson Intl flights
Philadelphia to Pierre Elliott Trudeau Intl flights
Orlando to Pierre Elliott Trudeau Intl flights
Midway to Pierre Elliott Trudeau Intl flights
Ontario to Pearson Intl flights

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 April 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapest$122Average$279FlexibilityNo cancel feeOn-time52%
Air CanadaCheapest$122Average$308FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$122Average$356FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$156Average$361FlexibilityNo cancel feeOn-time69%

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.