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Cheap flights from Niagara Falls to Chicago O'Hare Intl Airport from C$ 142

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 18/9. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — ORD
5 Aug — 12 Aug1
1 adult

Cheapflights Tip: The best prices from Niagara Falls to Chicago O'Hare Intl are usually found in April or May, booked 41 days in advance, depart on a Friday or Saturday and return on a Saturday

Cheap 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 31 July 2025.

Round-trip from

C$ 203

One-way from

C$ 142

Popular in

January

Cheapest in

April

Average price

C$ 401
Air Canada
  • Air Canada
  • 7/11-9/11
  • Nonstop
  • 3h 35m total
  • Niagara Falls to Chicago
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Air Canada
  • Air Canada
  • 18/9
  • Nonstop
  • 1h 54m total
  • Niagara Falls to Chicago
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (C$ 67 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
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Find flight deals from Niagara Falls to O'Hare Intl

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 31 July 2025.

Fri 7/1112:05 p.m.YYZ - ORD
Nonstop1h 56mAir Canada
Sun 9/113:55 p.m.ORD - YYZ
Nonstop1h 39mAir Canada
Deal found 30/7C$ 203
Thu 4/95:15 p.m.YYZ - ORD
Nonstop1h 57mLufthansa
Sun 7/99:12 p.m.ORD - YYZ
Nonstop1h 46mLufthansa
Deal found 30/7C$ 251
Wed 20/89:00 p.m.YYZ - ORD
Nonstop2h 07mUnited Airlines
Tue 2/99:12 p.m.ORD - YYZ
Nonstop1h 46mUnited Airlines
Deal found 30/7C$ 261
Tue 7/103:49 p.m.YYZ - ORD
1 stop6h 21mAmerican Airlines
Sun 12/105:22 a.m.ORD - YYZ
1 stop4h 48mAmerican Airlines
Deal found 29/7C$ 270
Fri 12/912:14 p.m.YYZ - ORD
1 stop6h 50mDelta
Sun 14/99:10 a.m.ORD - YYZ
1 stop7h 13mDelta
Deal found 30/7C$ 292

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 31 July 2025.
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

Fri 7/11

12:05 p.m.-1:01 p.m.

Nonstop1h 56m

Chicago O'Hare Intl

Sun 9/11

3:55 p.m.-6:34 p.m.

Nonstop1h 39m

C$ 203

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Thu 4/9

5:15 p.m.-6:12 p.m.

Nonstop1h 57m

Chicago O'Hare Intl

Sun 7/9

9:12 p.m.-11:58 p.m.

Nonstop1h 46m

C$ 251

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Wed 20/8

9:00 p.m.-10:07 p.m.

Nonstop2h 07m

Chicago O'Hare Intl

Tue 2/9

9:12 p.m.-11:58 p.m.

Nonstop1h 46m

C$ 261

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Tue 7/10

3:49 p.m.-9:10 p.m.

1 stop6h 21m

Chicago O'Hare Intl

Sun 12/10

5:22 a.m.-11:10 a.m.

1 stop4h 48m

C$ 270

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Fri 12/9

4:12 p.m.-8:20 p.m.

1 stop5h 08m

Chicago O'Hare Intl

Sun 14/9

7:10 a.m.-3:22 p.m.

1 stop7h 12m

C$ 292

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Thu 18/9

12:20 p.m.-1:14 p.m.

Nonstop1h 54m

C$ 142

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Tue 30/9

11:44 a.m.-12:39 p.m.

Nonstop1h 55m

C$ 153

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Mon 3/11

7:40 p.m.-11:43 p.m.

1 stop5h 03m

C$ 157

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Mon 1/9

6:30 a.m.-12:45 p.m.

1 stop7h 15m

C$ 185

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Mon 1/9

6:30 a.m.-10:20 a.m.

1 stop4h 50m

C$ 210

Flights are sorted by cheapest round-trip flights first.

Deals found on 30/7

Showing 1-10 of 11 results
1
2

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 25 July 2025.

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 41 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, January is the cheapest month in which you can book a flight from Niagara Falls to Chicago O'Hare Intl Airport (average of C$ 261). Flying from Niagara Falls to Chicago O'Hare Intl Airport in March is currently the most expensive (average of C$ 352). 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 31 July 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Niagara Falls to Chicago O'Hare Intl Airport as you normally would.

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 16 December 2024.

Travelers seeking maximum savings on their Niagara Falls to Chicago O'Hare Intl Airport flight should consider departing on Friday evenings when fares are most often at their lowest. Wednesday 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 31 July 2025.

The most flights from NI4 to ORD are scheduled on a Thursday (60 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (32 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 31 July 2025.
Check out reviews from past customers who have flown with Delta,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.
Delta
8.0
Very good
7,980 reviews
Check prices

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Delta
8.0
Very good
7,980 reviews
Delta
8.0
Very good
7,980 reviews
Check prices

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
United Airlines
7.4
Good
8,902 reviews
Delta
8.0
Very good
7,980 reviews
Check prices

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,980 reviews
Check prices

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
WestJet
7.2
Good
2,977 reviews
Delta
8.0
Very good
7,980 reviews
Check prices

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Air Canada
7.1
Good
9,842 reviews
Delta
8.0
Very good
7,980 reviews
Check prices

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran 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.

  • 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 Air Canada, which is currently one of the cheapest options available, starting at C$ 142. United Airlines flights start at C$ 153 while deals on Delta start at C$ 185 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 Cathay Pacific (100%), SkyWest Airlines (91%) and Egyptair (90%).

  • 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$ 2,365, our data shows the cheapest flight currently is C$ 194. When looking at the most popular route, (Toronto Pearson Intl - Chicago O'Hare Intl), you can expect to pay C$ 237 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, January is the cheapest month in which you can book a flight from Niagara Falls to Chicago O'Hare Intl Airport (average of C$ 261). Flying from Niagara Falls to Chicago O'Hare Intl Airport in March is currently the most expensive (average of C$ 352). 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
Elk Grove Village
Evanston
Des Plaines
Skokie
Downers Grove
Naperville
Bolingbrook
Romeoville

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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 31 July 2025.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapestC$ 229AverageC$ 316FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air CanadaCheapestC$ 271AverageC$ 439FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
American AirlinesCheapestC$ 289AverageC$ 496FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
United AirlinesCheapestC$ 291AverageC$ 430FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
WestJetCheapestC$ 422AverageC$ 583FlexibilityNo cancel feeOn-time60%
Search WestJet flights

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

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

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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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