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Cheap flights from Niagara Falls, ON to Chicago O'Hare Intl Airport from C$ 174

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 3/5. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — ORD
4 Mar — 11 Mar1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Niagara Falls to Chicago O'Hare Intl are usually found in May or April, booked 84 days in advance, depart on a Friday or Saturday and return on a Thursday

Cheap flight deals from Niagara Falls to O'Hare Intl

Enter your travel dates to find the best prices.

Cheapest flights from Niagara Falls to O'Hare Intl
Explore the most affordable flight options available from Niagara Falls to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 February 2026.

Thu 26/22:15 p.m.
YYZ
-
ORD
Nonstop1h 55m
Air Canada
Sun 1/38:00 a.m.
ORD
-
YYZ
Nonstop1h 40m
Air Canada
Deal found 1/2C$ 266
Sat 21/26:40 p.m.
YYZ
-
ORD
Nonstop2h 05m
Air Canada
Sun 22/28:40 p.m.
ORD
-
YYZ
Nonstop1h 39m
Air Canada
Deal found 31/1C$ 268
Thu 12/312:05 p.m.
YYZ
-
ORD
Nonstop1h 56m
Air Canada
Sun 15/310:00 a.m.
ORD
-
YYZ
Nonstop1h 40m
Air Canada
Deal found 31/1C$ 270
Fri 13/39:00 p.m.
YYZ
-
ORD
Nonstop2h 04m
United Airlines
Sun 15/37:10 a.m.
ORD
-
YYZ
Nonstop1h 48m
United Airlines
Deal found 31/1C$ 275
Thu 26/28:45 a.m.
YYZ
-
ORD
Nonstop2h 05m
Lufthansa
Sun 1/36:28 p.m.
ORD
-
YYZ
Nonstop1h 53m
Lufthansa
Deal found 1/2C$ 278
Tue 17/32:15 p.m.
YYZ
-
ORD
Nonstop1h 55m
Air Canada
Tue 24/38:00 a.m.
ORD
-
YYZ
Nonstop1h 40m
Air Canada
Deal found 31/1C$ 286
Thu 19/36:17 p.m.
YYZ
-
ORD
Nonstop2h 00m
American Airlines
Wed 25/37:06 a.m.
ORD
-
YYZ
1 stop4h 54m
American Airlines
Deal found 31/1C$ 289
Wed 4/31:55 p.m.
YYZ
-
ORD
1 stop5h 29m
American Airlines
Wed 18/38:12 a.m.
ORD
-
YYZ
Nonstop1h 44m
American Airlines
Deal found 1/2C$ 297
Sun 15/36:40 p.m.
YYZ
-
ORD
Nonstop2h 05m
Air Canada
Wed 18/310:00 a.m.
ORD
-
YYZ
Nonstop1h 40m
Air Canada
Deal found 1/2C$ 300
Tue 3/33:40 p.m.
YYZ
-
ORD
1 stop20h 42m
Multiple Airlines
Wed 11/36:36 p.m.
ORD
-
YYZ
1 stop24h 19m
Multiple Airlines
Deal found 31/1C$ 304

Find flight deals from Niagara Falls to O'Hare Intl

Keep the following information in mind while searching for Niagara Falls to O'Hare Intl flight deals. Data was last updated 2 February 2026.

Round-trip from

C$ 266

One-way from

C$ 174

Popular in

December

Cheapest in

May

Average price

C$ 381
Air Canada
  • Air Canada
  • 26/2-1/3
  • Nonstop
  • 3h 35m total
  • Niagara Falls to Chicago
Search Deals
United Airlines
  • United Airlines
  • 4/3
  • Nonstop
  • 2h 04m total
  • Niagara Falls to Chicago
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (C$ 33 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Niagara Falls to O'Hare Intl 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 2 February 2026.
Use the filters below to find and compare flights from Niagara Falls to Chicago O'Hare Intl Airport that are best for you.

Fly from

Niagara Falls

Fly to

O'Hare Intl

Route

Depart

Return

Price

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Wed 1/4

8:50 a.m.-9:50 a.m.

Nonstop2h 00m

Chicago O'Hare Intl

Sun 5/4

7:04 a.m.-9:54 a.m.

Nonstop1h 50m

C$ 275

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Wed 11/3

6:40 p.m.-7:45 p.m.

Nonstop2h 05m

Chicago O'Hare Intl

Sun 15/3

10:00 a.m.-12:40 p.m.

Nonstop1h 40m

C$ 275

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Mon 20/4

6:06 p.m.-11:53 p.m.

1 stop6h 47m

Chicago O'Hare Intl

Sun 26/4

8:12 a.m.-10:59 a.m.

Nonstop1h 47m

C$ 297

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Thu 12/3

9:00 p.m.-10:04 p.m.

Nonstop2h 04m

Chicago O'Hare Intl

Sun 15/3

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

Nonstop1h 50m

C$ 312

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Fri 20/3

4:50 p.m.-5:48 p.m.

Nonstop1h 58m

Chicago O'Hare Intl

Mon 23/3

8:40 p.m.-11:19 p.m.

Nonstop1h 39m

C$ 312

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Thu 12/3

9:00 p.m.-10:04 p.m.

Nonstop2h 04m

Chicago O'Hare Intl

Mon 16/3

6:25 p.m.-9:18 p.m.

Nonstop1h 53m

C$ 312

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Thu 26/2

9:00 p.m.-10:04 p.m.

Nonstop2h 04m

Chicago O'Hare Intl

Sun 1/3

1:12 p.m.-4:02 p.m.

Nonstop1h 50m

C$ 312

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Tue 14/4

10:15 a.m.-11:18 a.m.

Nonstop2h 03m

Chicago O'Hare Intl

Wed 15/4

5:57 p.m.-8:44 p.m.

Nonstop1h 47m

C$ 313

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Thu 26/2

10:15 a.m.-4:14 p.m.

1 stop6h 59m

Chicago O'Hare Intl

Sun 1/3

10:35 a.m.-7:09 p.m.

1 stop7h 34m

C$ 319

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Sat 6/6

4:10 p.m.-8:19 p.m.

1 stop5h 09m

Chicago O'Hare Intl

Tue 9/6

7:10 a.m.-1:25 p.m.

1 stop5h 15m

C$ 319

Flights are sorted by cheapest round-trip flights first.

Deals found on 30/1

Showing 1-10 of 22 results
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Best time to book a flight from Niagara Falls to O'Hare Intl

Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl 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 O'Hare Intl Airport

How far ahead should I book a flight from Niagara Falls to Chicago O'Hare Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from Niagara Falls to O'Hare Intl. Price data was last updated on 30 January 2026.

The price you pay for your flight from Niagara Falls to Chicago O'Hare Intl Airport may vary depending on when you book. For the best chance of a lower fare, look to book 84 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Niagara Falls to Chicago O'Hare Intl Airport?

Currently, April is the cheapest month in which you can book a flight from Niagara Falls to Chicago O'Hare Intl Airport (average of C$ 112). Flying from Niagara Falls to Chicago O'Hare Intl Airport in July is currently the most expensive (average of C$ 263). 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 ORD?

Find hourly flight availability from Niagara Falls to O'Hare Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 2 February 2026.

A simple way to save on the total cost of your ticket is to fly from Niagara Falls to Chicago O'Hare Intl Airport in the evening. If you’re flexible enough to do this you can expect to save up to 17% on your trip compared to booking a flight at noon.

What is the cheapest day to fly from Niagara Falls to Chicago O'Hare Intl Airport?

Use this chart to determine the cheapest time to fly round-trip from Niagara Falls to O'Hare Intl. Price data was last updated on 31 January 2026.

Travelers seeking maximum savings on their Niagara Falls to Chicago O'Hare Intl Airport flight should consider departing on Monday mornings when fares are most often at their lowest. Tuesday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Niagara Falls to Chicago O'Hare Intl Airport

Explore weekly flight availability from Niagara Falls to O'Hare Intl. 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 2 February 2026.

The most flights from NI4 to ORD are scheduled on a Friday (60 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (37 on average).

Reviews of airlines servicing O'Hare Intl

Get insights into the airlines that provide service to O'Hare Intl. 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 O'Hare Intl. Reviews last updated 2 February 2026.
Check out reviews from past customers who have flown with Porter Airlines,United Airlines, andAmerican Airlines from Niagara Falls to Chicago O'Hare Intl Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
7.9
Good
412 reviews
Check prices

Crew

8.6

Comfort

7.9

Entertainment

6.9

Boarding

8.2

Food

7.5

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
Porter Airlines
7.9
Good
412 reviews
Porter Airlines
7.9
Good
412 reviews
Check prices

Crew

8.6

Comfort

7.9

Entertainment

6.9

Boarding

8.2

Food

7.5

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
United Airlines
7.4
Good
9,229 reviews
Porter Airlines
7.9
Good
412 reviews
Check prices

Crew

8.6

Comfort

7.9

Entertainment

6.9

Boarding

8.2

Food

7.5

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
American Airlines
7.2
Good
11,211 reviews
Porter Airlines
7.9
Good
412 reviews
Check prices

Crew

8.6

Comfort

7.9

Entertainment

6.9

Boarding

8.2

Food

7.5

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
WestJet
7.2
Good
3,254 reviews
Porter Airlines
7.9
Good
412 reviews
Check prices

Crew

8.6

Comfort

7.9

Entertainment

6.9

Boarding

8.2

Food

7.5

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
Air Canada
7.1
Good
10,673 reviews
Porter Airlines
7.9
Good
412 reviews
Check prices

Crew

8.6

Comfort

7.9

Entertainment

6.9

Boarding

8.2

Food

7.5

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out

Related info for your journey

Find useful and relevant information for your journey from Niagara Falls to O'Hare Intl. 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 O'Hare Intl Airport?

    There are many flights that can get you from Niagara Falls to Chicago O'Hare Intl Airport in 2h. Fly via United Airlines, Air Canada, or American Airlines to get the fastest option. There are 702 km between Niagara Falls and Chicago O'Hare Intl Airport. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Niagara Falls to Chicago O'Hare Intl Airport one-way?

    To fly one-way, consider booking your trip with Porter Airlines, which is currently one of the cheapest options available, starting at C$ 126. United Airlines flights start at C$ 159 while deals on Air Canada start at C$ 160 one-way.

  • What are the most reliable airlines from Niagara Falls to Chicago O'Hare Intl Airport?

    The top 3 most reliable airlines when flying from Niagara Falls to Chicago O'Hare Intl Airport are Japan Airlines (79%), Copa Airlines (76%) and Republic Airways (72%).

  • What are the cheapest flights from Niagara Falls to Chicago O'Hare Intl Airport?

    While on average a flight from Niagara Falls to Chicago O'Hare Intl Airport is generally C$ 1,631, our data shows the cheapest flight currently is C$ 225. When looking at the most popular route, (Toronto Pearson Intl - Chicago O'Hare Intl), you can expect to pay C$ 257 for that flight.

  • Can I find deals for flights from Niagara Falls to O'Hare Intl that include hotel bookings?

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

  • How can I find direct flights from Niagara Falls to O'Hare Intl?

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

  • Can I find deals for business class flights from Niagara Falls to O'Hare Intl?

    Yes. Cheapflights offers flight deals from Niagara Falls to O'Hare Intl 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 O'Hare Intl Airport?

    Currently, April is the cheapest month in which you can book a flight from Niagara Falls to Chicago O'Hare Intl Airport (average of C$ 112). Flying from Niagara Falls to Chicago O'Hare Intl Airport in July is currently the most expensive (average of C$ 263). 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

Travelling to a place near Chicago O'Hare Intl Airport?

Book flights to Chicago O'Hare Intl Airport if you plan to visit one of these locations
Evanston
Des Plaines
Skokie
Elk Grove Village
Downers Grove
Racine
Naperville
Bolingbrook
Romeoville

Browse thousands of different options on Cheapflights for your next trip

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Top 5 airlines flying from Niagara Falls to O'Hare Intl

Discover the top 5 airlines that operate flights from Niagara Falls to O'Hare Intl. 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 2 February 2026.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapestC$ 219AverageC$ 271FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
American AirlinesCheapestC$ 221AverageC$ 406FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Air CanadaCheapestC$ 244AverageC$ 395FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 257AverageC$ 392FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
WestJetCheapestC$ 363AverageC$ 468FlexibilityNo cancel feeOn-time60%
Search WestJet flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Niagara Falls to O'Hare Intl?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Niagara Falls to O'Hare Intl. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Niagara Falls to O'Hare Intl?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Niagara Falls to O'Hare Intl.

Can Cheapflights find flights from Niagara Falls to O'Hare Intl with no change fees?

Yes, we can. To see specific flights from Niagara Falls to O'Hare Intl with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Niagara Falls to O'Hare Intl become cheaper?

Not ready to book yet? You can track prices for flights from Niagara Falls to O'Hare Intl on Cheapflights with our Price Alert feature and get notified when better prices are available.

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