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Niagara-on-the-Lake

$75+ Cheap flights from Chicago (CHI) to Niagara-on-the-Lake, 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 10/22. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — YYZ
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheapflights Tip: The best prices from Chicago to Niagara-on-the-Lake are usually found in June or July, booked 68 days in advance, depart on a Thursday or Friday and return on a Saturday

Cheap flight deals from Chicago to Niagara-on-the-Lake

Keep the following information in mind while searching for Chicago to Niagara-on-the-Lake flight deals. Data was last updated September 17, 2025.

Round-trip from

$199
(Kiwi.com)

One-way from

$75
(Kiwi.com)

Popular in

September

Cheapest in

June

Average price

$341
From Chicago (CHI) to Niagara-on-the-Lake
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One-way flight from Chicago (CHI) to Niagara-on-the-Lake
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Highest demand for flights based on searches. 1% potential increase in price ($5 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Chicago to Niagara-on-the-Lake

Cheapest flights from Chicago to Niagara-on-the-Lake
Explore the most affordable flight options available from Chicago to Niagara-on-the-Lake. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.

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 10/237:43 pmORD - YYZ
1 stop17h 22mMultiple Airlines
Mon 10/274:00 pmYYZ - ORD
1 stop8h 44mMultiple Airlines
Deal found 9/15$199
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.
Fri 10/245:05 amORD - YYZ
1 stop8h 00mMultiple Airlines
Mon 10/274:00 pmYYZ - ORD
1 stop8h 44mMultiple Airlines
Deal found 9/14$205
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.
Wed 10/227:43 pmORD - YYZ
1 stop17h 22mMultiple Airlines
Sun 10/264:00 pmYYZ - ORD
1 stop24h 49mMultiple Airlines
Deal found 9/15$207
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 10/245:05 amORD - YYZ
1 stop8h 00mMultiple Airlines
Sun 10/264:00 pmYYZ - ORD
1 stop24h 49mMultiple Airlines
Deal found 9/15$212
This Mytrip deal was found by Cheapflights users on 9/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/316:00 amORD - YYZ
1 stop13h 00mMultiple Airlines
Fri 11/712:50 pmYYZ - ORD
1 stop9h 33mMultiple Airlines
Deal found 9/16$213
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 10/315:25 amORD - YYZ
1 stop13h 35mMultiple Airlines
Mon 11/34:00 pmYYZ - ORD
1 stop7h 39mMultiple Airlines
Deal found 9/15$216
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 10/315:25 amORD - YYZ
1 stop13h 35mMultiple Airlines
Sun 11/94:00 pmYYZ - ORD
1 stop19h 42mMultiple Airlines
Deal found 9/15$217
This Kiwi.com deal was found by Cheapflights users on 9/16. 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 10/231:26 pmORD - YYZ
1 stop6h 41mMultiple Airlines
Sun 10/264:00 pmYYZ - ORD
1 stop24h 49mMultiple Airlines
Deal found 9/16$219
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.
Sat 11/16:00 amORD - YYZ
1 stop7h 20mMultiple Airlines
Mon 11/34:00 pmYYZ - ORD
1 stop7h 39mMultiple Airlines
Deal found 9/15$220
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 10/315:25 amORD - YYZ
1 stop13h 35mMultiple Airlines
Sun 11/24:00 pmYYZ - ORD
1 stop24h 49mMultiple Airlines
Deal found 9/15$223
This Kiwi.com deal was found by Cheapflights users on 9/16. 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 10/319:32 amMDW - YYZ
1 stop9h 28mMultiple Airlines
Fri 11/712:50 pmYYZ - MDW
1 stop10h 30mMultiple Airlines
Deal found 9/16$241
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 10/319:32 amMDW - YYZ
1 stop9h 28mMultiple Airlines
Sun 11/28:00 pmYYZ - MDW
2 stops23h 39mMultiple Airlines
Deal found 9/15$268

Cheapflights Fare Finder

 
Customize your flight search to find flights from Chicago to Niagara-on-the-Lake 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 17, 2025.
Use the filters below to find and compare flights from Chicago to Niagara-on-the-Lake that are best for you.

Fly from

Chicago

Fly to

Niagara-on-the-Lake

Route

Depart

Return

Price

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Wed 10/8

6:35 am-7:58 pm

1 stop12h 23m

Toronto Pearson Intl

Mon 10/13

4:00 pm-11:44 pm

1 stop8h 44m

$253

ChicagoToronto

MDW - YYZ

MDWYYZ

Chicago Midway

Sat 11/1

11:36 am-3:20 pm

1 stop26h 44m

Toronto Pearson Intl

Sat 11/8

6:30 pm-9:52 am

2 stops16h 22m

$278

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Sat 10/18

7:25 am-12:43 am

2 stops16h 18m

Toronto Pearson Intl

Tue 10/21

6:30 am-6:38 pm

1 stop13h 08m

$284

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Sat 11/1

6:00 am-2:20 pm

1 stop7h 20m

Toronto Pearson Intl

Sat 11/8

6:30 pm-7:30 pm

Nonstop2h 00m

$285

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Tue 2/24

1:35 pm-7:09 pm

1 stop4h 34m

Toronto Pearson Intl

Sat 2/28

2:10 pm-7:25 pm

1 stop6h 15m

$302

ChicagoToronto

MDW - YYZ

MDWYYZ

Chicago Midway

Fri 10/17

9:45 am-9:21 pm

1 stop10h 36m

Toronto Pearson Intl

Mon 10/20

6:00 pm-10:14 pm

1 stop5h 14m

$302

ChicagoToronto

MDW - YYZ

MDWYYZ

Chicago Midway

Fri 10/24

7:10 pm-11:47 am

1 stop15h 37m

Toronto Pearson Intl

Mon 10/27

6:30 pm-9:40 am

2 stops16h 10m

$316

ChicagoToronto

MDW - YYZ

MDWYYZ

Chicago Midway

Thu 10/23

12:48 pm-9:55 pm

1 stop8h 07m

Toronto Pearson Intl

Mon 10/27

7:24 pm-5:43 pm

1 stop23h 19m

$317

ChicagoToronto

MDW - YYZ

MDWYYZ

Chicago Midway

Fri 11/28

7:02 pm-4:02 pm

1 stop20h 00m

Toronto Pearson Intl

Mon 12/1

6:30 pm-9:54 am

2 stops16h 24m

$319

ChicagoToronto

ORD - YYZ

ORDYYZ

Chicago O'Hare Intl

Sat 11/1

2:00 pm-4:39 pm

Nonstop1h 39m

Toronto Pearson Intl

Wed 11/5

8:15 am-9:13 am

Nonstop1h 58m

$321

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 45 results
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Best time to book a flight from Chicago to Niagara-on-the-Lake

Have a flexible travel schedule? Discover the best time to fly to Niagara-on-the-Lake from Chicago 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 Chicago to Niagara-on-the-Lake

How far ahead should I book a flight from Chicago to Niagara-on-the-Lake?

Use this chart to determine the optimal time to book a round-trip flight from Chicago to Niagara-on-the-Lake. Price data was last updated on September 12, 2025.

To ensure you get the cheapest price possible for a flight from Chicago to Niagara-on-the-Lake, you should look to book at least 68 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Chicago to Niagara-on-the-Lake?

Currently, January is the cheapest month in which you can book a flight from Chicago to Niagara-on-the-Lake (average of $243). Flying from Chicago to Niagara-on-the-Lake 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 CHI to N1A?

Find hourly flight availability from Chicago to Niagara-on-the-Lake. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 17, 2025.

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

What is the cheapest day to fly from Chicago to Niagara-on-the-Lake?

Use this chart to determine the cheapest time to fly round-trip from Chicago to Niagara-on-the-Lake. Price data was last updated on September 14, 2025.

Travelers seeking maximum savings on their Chicago to Niagara-on-the-Lake flight should consider departing on Thursday evenings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Chicago to Niagara-on-the-Lake

Explore weekly flight availability from Chicago to Niagara-on-the-Lake. 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 September 17, 2025.

The most flights from CHI to N1A are scheduled on a Monday (63 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (41 on average).

How much does it cost to fly round-trip from Chicago to Niagara-on-the-Lake?

Reviews of airlines servicing Niagara-on-the-Lake

Get insights into the airlines that provide service to Niagara-on-the-Lake. 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-on-the-Lake. Reviews last updated September 17, 2025.
Read reviews from past customers who have flown Porter Airlines, United Airlines, and American Airlines from Chicago to Niagara-on-the-Lake. 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.
Porter Airlines
7.9
Good
365 reviews

Comfort

7.9

Entertainment

7.0

Food

7.6

Overall

7.9

Crew

8.6

Boarding

8.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
Porter Airlines
7.9
Good
365 reviews
Porter Airlines
7.9
Good
365 reviews

Comfort

7.9

Entertainment

7.0

Food

7.6

Overall

7.9

Crew

8.6

Boarding

8.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
United Airlines
7.4
Good
8,926 reviews
Porter Airlines
7.9
Good
365 reviews

Comfort

7.9

Entertainment

7.0

Food

7.6

Overall

7.9

Crew

8.6

Boarding

8.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
American Airlines
7.2
Good
10,000 reviews
Porter Airlines
7.9
Good
365 reviews

Comfort

7.9

Entertainment

7.0

Food

7.6

Overall

7.9

Crew

8.6

Boarding

8.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
Air Canada
7.1
Good
10,000 reviews
Porter Airlines
7.9
Good
365 reviews

Comfort

7.9

Entertainment

7.0

Food

7.6

Overall

7.9

Crew

8.6

Boarding

8.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.

Related info for your journey

Find useful and relevant information for your journey from Chicago to Niagara-on-the-Lake. 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 Chicago to Niagara-on-the-Lake?

    Departing from Chicago to Niagara-on-the-Lake will take you 1h 39m. Airlines will cover a distance of 436 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the most reliable airlines from Chicago to Niagara-on-the-Lake?

    Consider Qatar Airways (88%), Envoy Air (86%) or SkyWest Airlines (81%) when booking your flight. These represent the most reliable airlines when flying from Chicago to Niagara-on-the-Lake.

  • What are the cheapest flights from Chicago to Niagara-on-the-Lake?

    Looking for the cheapest flight from Chicago to Niagara-on-the-Lake? While on average our users pay $762, our data indicates the cheapest price to be $74. The most popular route (Chicago O'Hare Intl - Toronto Pearson Intl), is priced around $208.

  • Can I find deals for flights from Chicago to Niagara-on-the-Lake that include hotel bookings?

    Yes. In addition to deals on Chicago to Niagara-on-the-Lake flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Chicago to Niagara-on-the-Lake?

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

  • Can I find deals for business class flights from Chicago to Niagara-on-the-Lake?

    Yes. Cheapflights offers flight deals from Chicago to Niagara-on-the-Lake 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 Chicago to Niagara-on-the-Lake?

    Currently, January is the cheapest month in which you can book a flight from Chicago to Niagara-on-the-Lake (average of $243). Flying from Chicago to Niagara-on-the-Lake 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.

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Alternative routes for Chicago to Niagara-on-the-Lake

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Chicago to Niagara-on-the-Lake

Discover the top 4 airlines that operate flights from Chicago to Niagara-on-the-Lake. 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 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$118Average$270FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$146Average$307FlexibilityNo cancel feeOn-time69%
Porter AirlinesCheapest$187Average$257FlexibilityNo cancel feeOn-time52%
American AirlinesCheapest$226Average$391FlexibilityNo cancel feeOn-time71%

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