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Watertown

$319+ 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 8/16. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — ART
jun. 21 — jun. 281
sáb. 6/21
sáb. 6/28
1 adult, Economy
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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 junio 16, 2025.

Round-trip from

$319
(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 junio 16, 2025.

This American Airlines deal was found by Cheapflights users on 6/14. 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.
sáb. 8/168:50 amSTL - ART
2 stops12h 53mAmerican Airlines
mié. 8/206:00 amART - STL
2 stops13h 23mAmerican Airlines
Deal found 6/14$319
This American Airlines deal was found by Cheapflights users on 6/14. 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.
mié. 7/306:25 amORD - ART
2 stops7h 40mAmerican Airlines
mié. 8/63:14 pmART - ORD
2 stops8h 45mAmerican Airlines
Deal found 6/14$335

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 junio 16, 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

St. LouisWatertown

STL - ART

STLART

Lambert-St Louis

sáb. 8/16

8:50 am-10:43 pm

2 stops12h 53m

Watertown

mié. 8/20

6:00 am-6:23 pm

2 stops13h 23m

$319

ChicagoWatertown

ORD - ART

ORDART

Chicago O'Hare Intl

mié. 7/30

6:25 am-3:05 pm

2 stops7h 40m

Watertown

mié. 8/6

3:14 pm-10:59 pm

2 stops8h 45m

$335

ChicagoWatertown

ORD - ART

ORDART

Chicago O'Hare Intl

mié. 7/30

7:00 am-10:56 pm

1 stop14h 56m

$409

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/14

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.

Rainfall in Watertown by month

Plan your trip to Watertown by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Watertown, New York ranges from 2.7 - 4.1 inches per month. December is typically the wettest month, when rainfall can reach 4.1 in. June is typically the driest time to visit Watertown, New York when rainfall is around 2.7 in.

Temperature in Watertown by month

Plan your trip to Watertown by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Watertown, 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 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

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 junio 16, 2025.
American Airlines
7.2
Good
10,000 reviews

Overall

7.2

Crew

8.0

Food

6.5

Boarding

7.5

Comfort

7.2

Entertainment

6.9

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

Overall

7.2

Crew

8.0

Food

6.5

Boarding

7.5

Comfort

7.2

Entertainment

6.9

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 Greater Peoria - 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 Illinois?

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