In terms of precipitation, rainfall in Niagara Falls, New York ranges from 2.2 - 3.4 inches per month. September is typically the wettest month, when rainfall can reach 3.4 in. February is typically the driest time to visit Niagara Falls, New York when rainfall is around 2.2 in.

If weather is an important factor for your trip to Niagara Falls, New York, 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 71.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

What is the cheapest time of day to fly from IL to IAG?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Niagara Falls, New York as you normally would.

What airport do you fly into for flights to Niagara Falls from Illinois?

Niagara Falls (IAG) is the airport you will fly into if you book a flight from Illinois to Niagara Falls. It is only a 5.7 mi journey from Niagara Falls (IAG) to Niagara Falls’s city center.

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.

$354+ Cheap Flights from Illinois to Niagara Falls, NY

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

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

One-way

One-way flights from Illinois to Niagara Falls
Search for one-way flight options from Illinois to Niagara Falls. Find affordable one-way fares based on user searches. Data last updated August 25, 2026.

Thu 10/17:25 am -

3 stops25h 34m

Deal found 8/25

$354

Find flight deals from Illinois to Niagara Falls

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars

Provider with most accurate pricing for Chicago (CHI)-Niagara Falls flight deals.

Search Deals

Provider most trusted by Cheapflights users for Chicago (CHI)-Niagara Falls flights.

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Illinois to Niagara Falls that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest one-way

Quickest one-way

ChicagoNiagara Falls

ORD Chicago O'Hare Intl - IAG Niagara Falls

ORDIAG

Chicago O'Hare Intl

Thu 10/1

7:25 am-9:59 am

3 stops25h 34m

$354

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/25

Sorted by cheapest first

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.

ORD-IAG

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

USIL-IAG

ORD-IAG

No data available for this route at this time. Please check back soon.

Related info for your journey

What airport do you fly into for flights to Niagara Falls from Illinois?
Niagara Falls (IAG) is the airport you will fly into if you book a flight from Illinois to Niagara Falls. It is only a 5.7 mi journey from Niagara Falls (IAG) to Niagara Falls’s city center.
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.

See more FAQs

Lewiston

Browse thousands of different options on Cheapflights for your next trip

Alternative routes

Complete your trip

Flights by cabin class

Niagara Falls flight routes

Other flight options

Popular flights

Top destinations

Alternative routes for Illinois to Niagara Falls

San Francisco to Newark flights

San Francisco to John F Kennedy Intl flights

San Francisco to LaGuardia flights

Los Angeles to John F Kennedy Intl flights

Dallas/Fort Worth to LaGuardia flights

Los Angeles to Newark flights

Dallas/Fort Worth to Newark flights

Dallas/Fort Worth to John F Kennedy Intl flights

O'Hare Intl to John F Kennedy Intl flights

O'Hare Intl to LaGuardia flights

O'Hare Intl to Newark flights

Atlanta to John F Kennedy Intl flights

Hobby to LaGuardia flights

Hobby to Newark flights

Atlanta to Newark flights

Los Angeles to LaGuardia flights

Ontario to John F Kennedy Intl flights

Orlando to Newark flights

Fort Lauderdale to LaGuardia flights

Miami to LaGuardia flights

Atlanta to LaGuardia flights

Raleigh to John F Kennedy Intl flights

Seattle to Newark flights

Raleigh to Newark flights

Miami to Newark flights

Fort Lauderdale to Newark flights

Miami to John F Kennedy Intl flights

Orlando to John F Kennedy Intl flights

Raleigh to LaGuardia flights

George Bush Intcntl to Newark flights

Fort Lauderdale to John F Kennedy Intl flights

Hobby to John F Kennedy Intl flights

George Bush Intcntl to LaGuardia flights

Orlando to LaGuardia flights

Austin to John F Kennedy Intl flights

Tampa to Newark flights

Denver to LaGuardia flights

Austin to Newark flights

Charlotte to Newark flights

George Bush Intcntl to John F Kennedy Intl flights

Seattle to John F Kennedy Intl flights

Tampa to LaGuardia flights

Detroit to Newark flights

Denver to Newark flights

Denver to John F Kennedy Intl flights

Sky Harbor Intl to Newark flights

Sky Harbor Intl to John F Kennedy Intl flights

Detroit to LaGuardia flights

Tampa to John F Kennedy Intl flights

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.

$354+ Cheap flights from Illinois to Niagara Falls, NY (IAG)

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 10/1. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Illinois to Niagara Falls with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Illinois to Niagara Falls

One-way flights from Illinois to Niagara FallsSearch for one-way flight options from Illinois to Niagara Falls. Find affordable one-way fares based on user searches. Data last updated August 25, 2026.

Search for one-way flight options from Illinois to Niagara Falls. Find affordable one-way fares based on user searches. Data last updated August 25, 2026.

Find flight deals from Illinois to Niagara Falls

Most accurate provider

Most trusted provider

Cheapflights Fare Finder

Use the filters below to find and compare flights from Illinois to Niagara Falls that are best for you.

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.

Cheapflights Insights

Related info for your journey

What airport do you fly into for flights to Niagara Falls from Illinois?

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

How can I find direct flights from Illinois to Niagara Falls?

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

Traveling to a place near Niagara Falls?

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.

Complete your trip

Complete your trip to Niagara Falls by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Illinois to Niagara Falls by cabin class

Find flights from Illinois to Niagara Falls, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Other flights to Niagara Falls

Explore flights to Niagara Falls departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on August 25, 2026.

Illinois and Niagara Falls flights

Browse other Illinois and Niagara Falls flight options. Last updated on August 25, 2026.

Popular flight searches

Check out other popular destinations found by fellow travelers in 2026

Illinois to Niagara Falls flights

Consider these flights traveling from Illinois to Niagara Falls.

100% Free

Book with Flexibility

Travel Smart

One-way flights from Illinois to Niagara Falls
Search for one-way flight options from Illinois to Niagara Falls. Find affordable one-way fares based on user searches. Data last updated August 25, 2026.