HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Watertown

$224+ Cheap flights from Illinois to Watertown, NY (ART)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/22. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — ART
Aug 9 — Aug 161
Sat 8/9
Sat 8/16
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Illinois to Watertown 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 Watertown

Keep the following information in mind while searching for Illinois to Watertown flight deals. Data was last updated August 4, 2025.

Round-trip from

$224
(American Airlines)
From Illinois to Watertown
Search Deals

Find flight deals from Illinois to Watertown

Cheapest flights from Illinois to Watertown
Explore the most affordable flight options available from Illinois to Watertown. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 4, 2025.

This American Airlines deal was found by Cheapflights users on 8/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/276:10 amSTL - ART
2 stops8h 52mAmerican Airlines
Wed 10/14:27 pmART - STL
1 stop5h 39mAmerican Airlines
Deal found 8/1$314
This American Airlines deal was found by Cheapflights users on 8/2. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/269:55 amORD - ART
1 stop5h 07mAmerican Airlines
Mon 9/294:27 pmART - ORD
1 stop7h 12mAmerican Airlines
Deal found 8/2$337
This American Airlines deal was found by Cheapflights users on 8/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/86:00 amPIA - ART
2 stops7h 10mAmerican Airlines
Tue 11/116:00 amART - PIA
2 stops10h 47mAmerican Airlines
Deal found 8/1$409
This American Airlines deal was found by Cheapflights users on 8/3. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/911:20 amMLI - ART
2 stops8h 10mAmerican Airlines
Mon 9/154:27 pmART - MLI
2 stops8h 21mAmerican Airlines
Deal found 8/3$409

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Watertown 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 August 4, 2025.
Use the filters below to find and compare flights from Illinois to Watertown that are best for you.

Fly from

Illinois

Fly to

Watertown

Route

Depart

Return

Price

ChicagoWatertown

ORD - ART

ORDART

Chicago O'Hare Intl

Thu 1/22

6:00 am-2:59 pm

2 stops7h 59m

Watertown

Sun 1/25

6:16 am-12:12 pm

1 stop6h 56m

$224

St. LouisWatertown

STL - ART

STLART

Lambert-St Louis

Sat 9/27

6:10 am-4:02 pm

2 stops8h 52m

Watertown

Wed 10/1

4:27 pm-9:06 pm

1 stop5h 39m

$314

PeoriaWatertown

PIA - ART

PIAART

Greater Peoria

Sat 11/8

6:00 am-2:10 pm

2 stops7h 10m

Watertown

Tue 11/11

6:00 am-3:47 pm

2 stops10h 47m

$409

MolineWatertown

MLI - ART

MLIART

Moline Quad-City

Tue 9/9

11:20 am-8:30 pm

2 stops8h 10m

Watertown

Mon 9/15

4:27 pm-11:48 pm

2 stops8h 21m

$409

ChicagoWatertown

ORD - ART

ORDART

Chicago O'Hare Intl

Mon 8/18

8:40 am-2:49 pm

1 stop5h 09m

$425

St. LouisWatertown

STL - ART

STLART

Lambert-St Louis

Sun 9/7

4:58 pm-10:50 pm

1 stop4h 52m

$445

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/4

Best time to book a flight from Illinois to Watertown

Have a flexible travel schedule? Discover the best time to fly to Watertown from Illinois 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 Illinois to Watertown

What is the cheapest month to book a flight from Illinois to Watertown, New York?

Currently, February is the cheapest month in which you can book a flight from Illinois to Watertown, New York (average of $187). Flying from Illinois to Watertown, New York in May is currently the most expensive (average of $423). 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.

Reviews of airlines servicing Watertown

Get insights into the airlines that provide service to Watertown. 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 Watertown. Reviews last updated August 4, 2025.
See what other customers who have flown with American Airlines from Illinois to Watertown have to say. 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.
American Airlines
7.2
Good
10,000 reviews

Boarding

7.5

Comfort

7.2

Overall

7.2

Entertainment

6.9

Food

6.5

Crew

8.0

Reviews

1 / 20
2.0
Mediocre

Andrew,May 2025

LAX - MIA

2 hour delay. Discovered an engine problem late, we boarded the plane and they asked us to come off. To add insult to injury nothing was given to passengers to make amends. No free drink. No extra food or snacks. No free WiFi. Gimme a break
American Airlines
7.2
Good
10,000 reviews
American Airlines
7.2
Good
10,000 reviews

Boarding

7.5

Comfort

7.2

Overall

7.2

Entertainment

6.9

Food

6.5

Crew

8.0

Reviews

1 / 20
2.0
Mediocre

Andrew,May 2025

LAX - MIA

2 hour delay. Discovered an engine problem late, we boarded the plane and they asked us to come off. To add insult to injury nothing was given to passengers to make amends. No free drink. No extra food or snacks. No free WiFi. Gimme a break

Related info for your journey

Find useful and relevant information for your journey from Illinois to Watertown. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Watertown from Illinois?

    For a flight from Illinois to Watertown, you will be flying into Watertown. Watertown (ART) is just 5.6 mi from the center of the city.

  • What are the most popular routes from Illinois to Watertown, New York?

    While some choose either Lambert-St Louis - Watertown or Moline Quad-City - Watertown, Chicago O'Hare Intl - Watertown is the most popular route from Illinois to Watertown, New York.

  • Can I find deals for flights from Illinois to Watertown that include hotel bookings?

    Yes. In addition to deals on Illinois to Watertown flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Illinois to Watertown?

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

  • Can I find deals for business class flights from Illinois to Watertown?

    Yes. Cheapflights offers flight deals from Illinois to Watertown 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 Illinois to Watertown, New York?

    Currently, February is the cheapest month in which you can book a flight from Illinois to Watertown, New York (average of $187). Flying from Illinois to Watertown, New York in May is currently the most expensive (average of $423). 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

Traveling to a place near Watertown?

Book flights to Watertown if you plan to visit one of these locations
Alexandria Bay

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 Watertown

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to John F Kennedy Intl flights
Los Angeles to Newark flights
Dallas/Fort Worth to LaGuardia flights
O'Hare Intl to John F Kennedy Intl flights
San Francisco to John F Kennedy Intl flights
O'Hare Intl to Newark flights
O'Hare Intl to LaGuardia flights
San Francisco to Newark flights
Dallas/Fort Worth to John F Kennedy Intl flights
Dallas/Fort Worth to Newark flights
Atlanta to LaGuardia flights
Los Angeles to LaGuardia flights
Atlanta to John F Kennedy Intl flights
Miami to Newark flights
Seattle to John F Kennedy Intl flights
Midway to LaGuardia flights
Atlanta to Newark flights
Ontario to John F Kennedy Intl flights
San Francisco to LaGuardia flights
Fort Lauderdale to John F Kennedy Intl flights
Hobby to Newark flights
Miami to John F Kennedy Intl flights
Fort Lauderdale to LaGuardia flights
Hobby to LaGuardia flights
Sky Harbor Intl to John F Kennedy Intl flights
Fort Lauderdale to Newark flights
Miami to LaGuardia flights
Seattle to Newark flights
Orlando to John F Kennedy Intl flights
Hobby to John F Kennedy Intl flights
Minneapolis to LaGuardia flights
Denver to Newark flights
Ontario to Newark flights
Minneapolis to John F Kennedy Intl flights
George Bush Intcntl to Newark flights
Burbank to Newark flights
Seattle to LaGuardia flights
Tampa to John F Kennedy Intl flights
Orlando to LaGuardia flights
San Diego to Newark flights
Tampa to Newark flights
Tampa to LaGuardia flights
George Bush Intcntl to John F Kennedy Intl flights
Orlando to Newark flights
Minneapolis to Newark flights
Raleigh to John F Kennedy Intl flights
Sky Harbor Intl to Newark flights
San Diego to John F Kennedy Intl flights
Raleigh to LaGuardia flights
Midway 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.