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$341+ Cheap flights from Watertown, NY (ART) to Illinois

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 7/15. Fares are subject to change and may not be available on all flights or dates of travel.
ART — ORD
Jul 6 — Jul 131
Sun 7/6
Sun 7/13
1 adult, Economy
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Cheap flight deals from Watertown to Illinois

Keep the following information in mind while searching for Watertown to Illinois flight deals. Data was last updated July 1, 2025.

Round-trip from

$341
(American Airlines)
From Watertown to Illinois
Search Deals

Find flight deals from Watertown to Illinois

Cheapest flights from Watertown to Illinois
Explore the most affordable flight options available from Watertown to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 1, 2025.

This American Airlines deal was found by Cheapflights users on 6/30. 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 7/156:05 amART - ORD
2 stops8h 34mAmerican Airlines
Sat 7/197:00 amORD - ART
1 stop7h 05mAmerican Airlines
Deal found 6/30$341
This American Airlines deal was found by Cheapflights users on 6/30. 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 8/96:00 amART - STL
2 stops11h 14mAmerican Airlines
Mon 8/114:54 pmSTL - ART
1 stop4h 49mAmerican Airlines
Deal found 6/30$446

Cheapflights Fare Finder

Customize your flight search to find flights from Watertown to Illinois 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 July 1, 2025.
Use the filters below to find and compare flights from Watertown to Illinois that are best for you.

Fly from

Watertown

Fly to

Illinois

Route

Depart

Return

Price

WatertownChicago

ART - ORD

ARTORD

Watertown

Tue 7/15

6:05 am-1:39 pm

2 stops8h 34m

Chicago O'Hare Intl

Sat 7/19

7:00 am-3:05 pm

1 stop7h 05m

$341

WatertownSt. Louis

ART - STL

ARTSTL

Watertown

Sat 8/9

6:00 am-3:42 pm

2 stops10h 42m

Lambert-St Louis

Tue 8/12

4:54 pm-10:43 pm

1 stop4h 49m

$446

WatertownSt. Louis

ART - STL

ARTSTL

Watertown

Wed 8/13

3:14 pm-8:47 pm

1 stop6h 33m

$375

WatertownChicago

ART - ORD

ARTORD

Watertown

Fri 8/1

6:05 am-12:17 pm

1 stop7h 12m

$460

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

Best time to book a flight from Watertown to Illinois

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

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

Currently, August is the cheapest month in which you can book a flight from Watertown, New York to Illinois (average of $245). Flying from Watertown, New York to Illinois in March is currently the most expensive (average of $321). 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 Illinois

Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated July 1, 2025.
Read reviews from past customers who have flown American Airlines from Watertown to Illinois. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.2
Good
10,000 reviews

Comfort

7.2

Entertainment

6.9

Overall

7.2

Food

6.5

Boarding

7.5

Crew

8.0

Reviews

1 / 20
10.0
Excellent

Leonardo,May 2025

JFK - BGI

Good airline and so far i give them 8 out of 10.
American Airlines
7.2
Good
10,000 reviews
American Airlines
7.2
Good
10,000 reviews

Comfort

7.2

Entertainment

6.9

Overall

7.2

Food

6.5

Boarding

7.5

Crew

8.0

Reviews

1 / 20
10.0
Excellent

Leonardo,May 2025

JFK - BGI

Good airline and so far i give them 8 out of 10.

Related info for your journey

Find useful and relevant information for your journey from Watertown to Illinois. 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 from for flights from Watertown to Illinois?

    Located just 5.6 mi from the city center, Watertown (ART) is the airport most travelers will use when flying to Illinois from Watertown.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Watertown, New York to Illinois (average of $245). Flying from Watertown, New York to Illinois in March is currently the most expensive (average of $321). 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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