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Cheap flights from Niagara Falls, ON to Chicago from C$ 178

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 15/12. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — CHI
15 Dec — 22 Dec1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from Niagara Falls to Chicago are usually found in September or August, booked 84 days in advance, depart on a Friday or Saturday and return on a Thursday

Find flight deals from Niagara Falls to Chicago

Enter your travel dates to find the best prices.

Cheapest flights from Niagara Falls to Chicago
Explore the most affordable flight options available from Niagara Falls to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 November 2025.

Fri 5/127:09 p.m.YYZ - ORD
1 stop5h 30mAmerican Airlines
Sun 7/125:00 a.m.ORD - YYZ
1 stop5h 02mAmerican Airlines
Deal found 15/11C$ 258
Mon 29/124:50 p.m.YYZ - ORD
Nonstop1h 58mAir Canada
Mon 5/18:30 p.m.ORD - YYZ
Nonstop1h 39mAir Canada
Deal found 13/11C$ 261
Thu 4/126:00 a.m.YYZ - ORD
Nonstop2h 15mAmerican Airlines
Sun 7/125:00 a.m.ORD - YYZ
1 stop5h 02mAmerican Airlines
Deal found 15/11C$ 267
Wed 3/124:50 p.m.YYZ - ORD
Nonstop1h 58mAir Canada
Sat 6/128:15 p.m.ORD - YYZ
Nonstop1h 39mAir Canada
Deal found 14/11C$ 279
Wed 3/122:15 p.m.YYZ - ORD
Nonstop1h 55mAir Canada
Sun 7/128:00 a.m.ORD - YYZ
Nonstop1h 40mAir Canada
Deal found 15/11C$ 281
Sun 14/1212:13 p.m.YYZ - ORD
1 stop5h 09mDelta
Tue 16/128:55 a.m.ORD - YYZ
1 stop7h 20mDelta
Deal found 14/11C$ 282
Sun 14/129:00 a.m.YYZ - ORD
Nonstop2h 02mUnited Airlines
Wed 17/127:10 a.m.ORD - YYZ
Nonstop1h 48mUnited Airlines
Deal found 14/11C$ 283
Thu 4/122:15 p.m.YYZ - ORD
Nonstop1h 55mAir Canada
Sun 7/128:00 a.m.ORD - YYZ
Nonstop1h 40mAir Canada
Deal found 15/11C$ 285
Wed 24/129:00 p.m.YYZ - ORD
Nonstop2h 05mUnited Airlines
Sat 10/11:13 p.m.ORD - YYZ
Nonstop1h 49mUnited Airlines
Deal found 14/11C$ 289
Fri 26/126:50 a.m.YYZ - ORD
Nonstop2h 13mUnited Airlines
Tue 6/111:15 a.m.ORD - YYZ
Nonstop1h 46mUnited Airlines
Deal found 13/11C$ 290
Tue 9/123:38 p.m.YYZ - MDW
1 stop3h 22mDelta
Wed 7/19:34 a.m.MDW - YYZ
1 stop5h 38mDelta
Deal found 13/11C$ 296
Wed 26/116:05 a.m.YYZ - MDW
1 stop3h 49mDelta
Tue 9/129:34 a.m.MDW - YYZ
1 stop4h 14mDelta
Deal found 12/11C$ 313

Cheap flight deals from Niagara Falls to Chicago

Keep the following information in mind while searching for Niagara Falls to Chicago flight deals. Data was last updated 15 November 2025.

Round-trip from

C$ 258

One-way from

C$ 178

Popular in

December

Cheapest in

September

Average price

C$ 436
United Airlines
  • United Airlines
  • 11/1-13/1
  • Nonstop
  • 3h 54m total
  • Niagara Falls to Chicago
Search Deals
United Airlines
  • United Airlines
  • 12/12
  • Nonstop
  • 2h 05m total
  • Niagara Falls to Chicago
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (C$ 72 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Niagara Falls to Chicago 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 629,999 searches. Data last updated 15 November 2025.
Use the filters below to find and compare flights from Niagara Falls to Chicago that are best for you.

Fly from

Niagara Falls

Fly to

Chicago

Route

Depart

Return

Price

TorontoChicago

YYZ - MDW

YYZMDW

Toronto Pearson Intl

Sun 11/1

6:00 a.m.-8:54 a.m.

1 stop3h 54m

Chicago Midway

Sat 17/1

1:28 p.m.-7:08 p.m.

1 stop4h 40m

C$ 282

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Sun 14/12

9:00 a.m.-10:02 a.m.

Nonstop2h 02m

Chicago O'Hare Intl

Wed 17/12

7:10 a.m.-9:58 a.m.

Nonstop1h 48m

C$ 283

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Fri 26/12

6:50 a.m.-8:03 a.m.

Nonstop2h 13m

Chicago O'Hare Intl

Tue 6/1

4:50 p.m.-7:45 p.m.

Nonstop1h 55m

C$ 288

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Mon 22/12

6:50 a.m.-8:03 a.m.

Nonstop2h 13m

Chicago O'Hare Intl

Sat 10/1

7:10 a.m.-9:58 a.m.

Nonstop1h 48m

C$ 289

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Wed 24/12

9:00 p.m.-10:05 p.m.

Nonstop2h 05m

Chicago O'Hare Intl

Sat 10/1

1:13 p.m.-4:02 p.m.

Nonstop1h 49m

C$ 289

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Wed 24/12

9:00 p.m.-10:05 p.m.

Nonstop2h 05m

Chicago O'Hare Intl

Thu 29/1

9:15 p.m.-11:59 p.m.

Nonstop1h 44m

C$ 289

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Tue 23/12

9:00 p.m.-10:05 p.m.

Nonstop2h 05m

Chicago O'Hare Intl

Sat 10/1

11:15 a.m.-2:01 p.m.

Nonstop1h 46m

C$ 289

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Thu 8/1

9:00 a.m.-10:06 a.m.

Nonstop2h 06m

Chicago O'Hare Intl

Sun 11/1

6:05 a.m.-11:48 a.m.

1 stop4h 43m

C$ 290

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Thu 8/1

7:50 a.m.-4:22 p.m.

1 stop9h 32m

Chicago O'Hare Intl

Sun 11/1

6:15 a.m.-3:59 p.m.

1 stop8h 44m

C$ 295

TorontoChicago

YYZ - MDW

YYZMDW

Toronto Pearson Intl

Tue 6/1

6:30 a.m.-1:09 p.m.

1 stop7h 39m

Chicago Midway

Sat 10/1

5:00 p.m.-11:13 p.m.

1 stop5h 13m

C$ 295

Flights are sorted by cheapest round-trip flights first.

Deals found on 14/11

Showing 1-10 of 44 results
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Best time to book a flight from Niagara Falls to Chicago

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

How far ahead should I book a flight from Niagara Falls to Chicago?

Use this chart to determine the optimal time to book a round-trip flight from Niagara Falls to Chicago. Price data was last updated on 14 November 2025.

The best time to book flights from Niagara Falls to Chicago is 84 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, June is the cheapest month in which you can book a flight from Niagara Falls to Chicago (average of C$ 116). Flying from Niagara Falls to Chicago in February is currently the most expensive (average of C$ 267). 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 NI4 to CHI?

Find hourly flight availability from Niagara Falls to Chicago. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 15 November 2025.

When flying from Niagara Falls to Chicago, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 29% versus a flight at noon.

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

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

Travelers seeking maximum savings on their Niagara Falls to Chicago flight should consider departing on Sunday mornings 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 Niagara Falls to Chicago

Explore weekly flight availability from Niagara Falls to Chicago. 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 15 November 2025.

The most flights from NI4 to CHI are scheduled on a Friday (61 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (50 on average).

Reviews of airlines servicing Chicago

Get insights into the airlines that provide service to Chicago. 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 Chicago. Reviews last updated 15 November 2025.
See what other customers who have flown with Porter Airlines,United Airlines, andAmerican Airlines from Niagara Falls to Chicago have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
8.0
Very good
391 reviews
Check prices

Crew

8.6

Boarding

8.2

Overall

8.0

Comfort

8.0

Entertainment

7.0

Food

7.6

Reviews

1 / 20
2.0
Mediocre

Kelly,Nov 2025

YVR - YUL

I recently flew with Porter Airlines on Flight PD372 on October 30th, and unfortunately, had a very disappointing experience. At the gate, one of their attendants gave me two boarding passes. I assumed these were for my itinerary from Vancouver to Montreal and back, but one of the boarding passes unexpectedly included a connecting flight to Toronto, which was never part of my booking or invoice. As a result of this error, my checked baggage was mistakenly routed to Toronto. When I contacted Porter’s customer service, I spoke to an agent who apologized on behalf of the attendant (employee number 13209961) and promised to have my luggage flown back to Montreal. However, shortly after, I was told there was nothing they could do except for me to travel to Toronto myself to pick up my bag. This is highly unreasonable and unfair, considering the issue was caused by their staff printing the wrong boarding pass. This entire situation caused me significant inconvenience and stress. I expected Porter to correct the mistake and deliver my luggage as originally planned, but instead, I was left with the burden of fixing an error that was not mine. I even have a photo of the staff badge of the employee who made the promise, yet the company still failed to honor it. I hope Porter Airlines reviews their internal communication and baggage handling procedures to prevent this from happening to other passengers. Customer care and responsibility fell short in this experience, and I am still waiting for a satisfactory resolution.
Porter Airlines
8.0
Very good
391 reviews
Porter Airlines
8.0
Very good
391 reviews
Check prices

Crew

8.6

Boarding

8.2

Overall

8.0

Comfort

8.0

Entertainment

7.0

Food

7.6

Reviews

1 / 20
2.0
Mediocre

Kelly,Nov 2025

YVR - YUL

I recently flew with Porter Airlines on Flight PD372 on October 30th, and unfortunately, had a very disappointing experience. At the gate, one of their attendants gave me two boarding passes. I assumed these were for my itinerary from Vancouver to Montreal and back, but one of the boarding passes unexpectedly included a connecting flight to Toronto, which was never part of my booking or invoice. As a result of this error, my checked baggage was mistakenly routed to Toronto. When I contacted Porter’s customer service, I spoke to an agent who apologized on behalf of the attendant (employee number 13209961) and promised to have my luggage flown back to Montreal. However, shortly after, I was told there was nothing they could do except for me to travel to Toronto myself to pick up my bag. This is highly unreasonable and unfair, considering the issue was caused by their staff printing the wrong boarding pass. This entire situation caused me significant inconvenience and stress. I expected Porter to correct the mistake and deliver my luggage as originally planned, but instead, I was left with the burden of fixing an error that was not mine. I even have a photo of the staff badge of the employee who made the promise, yet the company still failed to honor it. I hope Porter Airlines reviews their internal communication and baggage handling procedures to prevent this from happening to other passengers. Customer care and responsibility fell short in this experience, and I am still waiting for a satisfactory resolution.
United Airlines
7.4
Good
9,017 reviews
Porter Airlines
8.0
Very good
391 reviews
Check prices

Crew

8.6

Boarding

8.2

Overall

8.0

Comfort

8.0

Entertainment

7.0

Food

7.6

Reviews

1 / 20
2.0
Mediocre

Kelly,Nov 2025

YVR - YUL

I recently flew with Porter Airlines on Flight PD372 on October 30th, and unfortunately, had a very disappointing experience. At the gate, one of their attendants gave me two boarding passes. I assumed these were for my itinerary from Vancouver to Montreal and back, but one of the boarding passes unexpectedly included a connecting flight to Toronto, which was never part of my booking or invoice. As a result of this error, my checked baggage was mistakenly routed to Toronto. When I contacted Porter’s customer service, I spoke to an agent who apologized on behalf of the attendant (employee number 13209961) and promised to have my luggage flown back to Montreal. However, shortly after, I was told there was nothing they could do except for me to travel to Toronto myself to pick up my bag. This is highly unreasonable and unfair, considering the issue was caused by their staff printing the wrong boarding pass. This entire situation caused me significant inconvenience and stress. I expected Porter to correct the mistake and deliver my luggage as originally planned, but instead, I was left with the burden of fixing an error that was not mine. I even have a photo of the staff badge of the employee who made the promise, yet the company still failed to honor it. I hope Porter Airlines reviews their internal communication and baggage handling procedures to prevent this from happening to other passengers. Customer care and responsibility fell short in this experience, and I am still waiting for a satisfactory resolution.
American Airlines
7.2
Good
11,050 reviews
Porter Airlines
8.0
Very good
391 reviews
Check prices

Crew

8.6

Boarding

8.2

Overall

8.0

Comfort

8.0

Entertainment

7.0

Food

7.6

Reviews

1 / 20
2.0
Mediocre

Kelly,Nov 2025

YVR - YUL

I recently flew with Porter Airlines on Flight PD372 on October 30th, and unfortunately, had a very disappointing experience. At the gate, one of their attendants gave me two boarding passes. I assumed these were for my itinerary from Vancouver to Montreal and back, but one of the boarding passes unexpectedly included a connecting flight to Toronto, which was never part of my booking or invoice. As a result of this error, my checked baggage was mistakenly routed to Toronto. When I contacted Porter’s customer service, I spoke to an agent who apologized on behalf of the attendant (employee number 13209961) and promised to have my luggage flown back to Montreal. However, shortly after, I was told there was nothing they could do except for me to travel to Toronto myself to pick up my bag. This is highly unreasonable and unfair, considering the issue was caused by their staff printing the wrong boarding pass. This entire situation caused me significant inconvenience and stress. I expected Porter to correct the mistake and deliver my luggage as originally planned, but instead, I was left with the burden of fixing an error that was not mine. I even have a photo of the staff badge of the employee who made the promise, yet the company still failed to honor it. I hope Porter Airlines reviews their internal communication and baggage handling procedures to prevent this from happening to other passengers. Customer care and responsibility fell short in this experience, and I am still waiting for a satisfactory resolution.
WestJet
7.2
Good
3,162 reviews
Porter Airlines
8.0
Very good
391 reviews
Check prices

Crew

8.6

Boarding

8.2

Overall

8.0

Comfort

8.0

Entertainment

7.0

Food

7.6

Reviews

1 / 20
2.0
Mediocre

Kelly,Nov 2025

YVR - YUL

I recently flew with Porter Airlines on Flight PD372 on October 30th, and unfortunately, had a very disappointing experience. At the gate, one of their attendants gave me two boarding passes. I assumed these were for my itinerary from Vancouver to Montreal and back, but one of the boarding passes unexpectedly included a connecting flight to Toronto, which was never part of my booking or invoice. As a result of this error, my checked baggage was mistakenly routed to Toronto. When I contacted Porter’s customer service, I spoke to an agent who apologized on behalf of the attendant (employee number 13209961) and promised to have my luggage flown back to Montreal. However, shortly after, I was told there was nothing they could do except for me to travel to Toronto myself to pick up my bag. This is highly unreasonable and unfair, considering the issue was caused by their staff printing the wrong boarding pass. This entire situation caused me significant inconvenience and stress. I expected Porter to correct the mistake and deliver my luggage as originally planned, but instead, I was left with the burden of fixing an error that was not mine. I even have a photo of the staff badge of the employee who made the promise, yet the company still failed to honor it. I hope Porter Airlines reviews their internal communication and baggage handling procedures to prevent this from happening to other passengers. Customer care and responsibility fell short in this experience, and I am still waiting for a satisfactory resolution.
Air Canada
7.1
Good
10,450 reviews
Porter Airlines
8.0
Very good
391 reviews
Check prices

Crew

8.6

Boarding

8.2

Overall

8.0

Comfort

8.0

Entertainment

7.0

Food

7.6

Reviews

1 / 20
2.0
Mediocre

Kelly,Nov 2025

YVR - YUL

I recently flew with Porter Airlines on Flight PD372 on October 30th, and unfortunately, had a very disappointing experience. At the gate, one of their attendants gave me two boarding passes. I assumed these were for my itinerary from Vancouver to Montreal and back, but one of the boarding passes unexpectedly included a connecting flight to Toronto, which was never part of my booking or invoice. As a result of this error, my checked baggage was mistakenly routed to Toronto. When I contacted Porter’s customer service, I spoke to an agent who apologized on behalf of the attendant (employee number 13209961) and promised to have my luggage flown back to Montreal. However, shortly after, I was told there was nothing they could do except for me to travel to Toronto myself to pick up my bag. This is highly unreasonable and unfair, considering the issue was caused by their staff printing the wrong boarding pass. This entire situation caused me significant inconvenience and stress. I expected Porter to correct the mistake and deliver my luggage as originally planned, but instead, I was left with the burden of fixing an error that was not mine. I even have a photo of the staff badge of the employee who made the promise, yet the company still failed to honor it. I hope Porter Airlines reviews their internal communication and baggage handling procedures to prevent this from happening to other passengers. Customer care and responsibility fell short in this experience, and I am still waiting for a satisfactory resolution.

Related info for your journey

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

    Airlines like Delta and United Airlines fly from Niagara Falls to Chicago in about 2h 02m. The time it takes to get you to your destination can typically vary by up to 1h 52m. Airlines will cover a distance of 702 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

    No one likes to see their flight delayed. When booking a flight from Niagara Falls to Chicago consider choosing EVA Air (94%), Egyptair (92%) or ANA (88%) as they are the most reliable in getting you off to your destination on time.

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

    While on average a flight from Niagara Falls to Chicago is generally C$ 2,093, our data shows the cheapest flight currently is C$ 220. When looking at the most popular route, (Toronto Pearson Intl - Chicago O'Hare Intl), you can expect to pay C$ 215 for that flight.

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

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

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

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

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

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

    Currently, June is the cheapest month in which you can book a flight from Niagara Falls to Chicago (average of C$ 116). Flying from Niagara Falls to Chicago in February is currently the most expensive (average of C$ 267). 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

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Alternative routes for Niagara Falls to Chicago

See prices for flight routes from nearby airports that may be better suited for you.
Pearson Intl to O'Hare Intl flights
Pierre Elliott Trudeau Intl to O'Hare Intl flights
Pearson Intl to Midway flights
Toronto Island to Midway flights
Pierre Elliott Trudeau Intl to Midway flights
Toronto Island to O'Hare Intl flights
Pearson Intl to St. Louis flights
Ottawa to O'Hare Intl flights
Pierre Elliott Trudeau Intl to St. Louis flights
Ottawa to Midway flights
Hamilton to O'Hare Intl flights
London to O'Hare Intl flights
Pearson Intl to Moline flights
Pearson Intl to Peoria flights
Ottawa to St. Louis flights
Sudbury to O'Hare Intl flights
Pearson Intl to Bloomington flights
Pearson Intl to Quincy flights
Region of Waterloo Intl to O'Hare Intl flights
Kingston to O'Hare Intl flights
Pearson Intl to Champaign flights
Ottawa to Champaign flights

Top 5 airlines flying from Niagara Falls to Chicago

Discover the top 5 airlines that operate flights from Niagara Falls to Chicago. 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 629,999 searches. Data last updated 15 November 2025.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapestC$ 198AverageC$ 308FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
American AirlinesCheapestC$ 264AverageC$ 454FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Air CanadaCheapestC$ 265AverageC$ 412FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 284AverageC$ 425FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
WestJetCheapestC$ 374AverageC$ 600FlexibilityNo cancel feeOn-time60%
Search WestJet flights

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How does Cheapflights help users find flights from Niagara Falls to Chicago?

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Yes! Cheapflights helps users easily find flights from Niagara Falls to Chicago with no change fees.

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