What airlines fly to Illinois?

American Airlines, United Airlines and Delta are the top three most popular airlines that fly to Illinois from Watertown, New York according to our data. American Airlines is the first choice among our users, with 56% of people opting to fly with this airline when traveling to Illinois. Keep in mind that there are 3 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Watertown Airport to Illinois?

Prices for flights from Watertown Airport to Illinois refresh daily.

How old do you have to be to fly from Watertown Airport to Illinois?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Watertown Airport to Illinois.

What documentation or ID do you need to fly to Illinois?

The travel and health documents required for your trip to Illinois can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Illinois. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$238 Cheap Flights from Watertown to Illinois in 2025/26

1 adult

0 bags

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Watertown, New York to Illinois

Round-trip

Cheap round-trip flights

4:27 pm - 8:43 pmART-ORD

5h 16m1 stop

8:35 am - 4:02 pmORD-ART

6h 27m1 stop

$238American Airlines

Find Deal

Tue, Sep 30 - Sat, Oct 4

4:27 pm - 11:48 pmART-ORD

8h 21m2 stops

1:15 pm - 8:29 pmORD-ART

6h 14m1 stop

$244American Airlines

Find Deal

Tue, Sep 30 - Sat, Oct 4

4:27 pm - 11:12 pmART-ORD

7h 45m2 stops

7:10 am - 4:02 pmORD-ART

7h 52m2 stops

$249American Airlines

Find Deal

Tue, Sep 30 - Sat, Oct 4

6:00 am - 12:20 pmART-ORD

7h 20m1 stop

9:55 am - 4:02 pmORD-ART

5h 07m1 stop

$455American Airlines

Find Deal

Wed, Oct 1 - Sun, Oct 5

6:00 am - 1:42 pmART-ORD

8h 42m2 stops

9:55 am - 4:02 pmORD-ART

5h 07m1 stop

$461American Airlines

Find Deal

Wed, Oct 1 - Sun, Oct 5

4:27 pm - 11:12 pmART-ORD

7h 45m2 stops

7:21 am - 4:02 pmORD-ART

7h 41m2 stops

$740American Airlines

Find Deal

Wed, Oct 1 - Sun, Oct 5

American Airlines flights from Watertown, New York to Illinois

Our best American Airlines deals on Watertown, New York to Illinois flight tickets

American Airlines

Sep 30

ART4:27 pmWatertown

5h 16m

1 stop

ORD8:43 pmChicago O'Hare Intl

Oct 4

ORD8:35 amChicago O'Hare Intl

6h 27m

1 stop

ART4:02 pmWatertown

$238

Find similar

American Airlines

Sep 30

ART4:27 pmWatertown

8h 21m

2 stops

ORD11:48 pmChicago O'Hare Intl

Oct 4

ORD1:15 pmChicago O'Hare Intl

6h 14m

1 stop

ART8:29 pmWatertown

$244

Find similar

American Airlines

Sep 30

ART4:27 pmWatertown

7h 45m

2 stops

ORD11:12 pmChicago O'Hare Intl

Oct 4

ORD7:10 amChicago O'Hare Intl

7h 52m

2 stops

ART4:02 pmWatertown

$249

Find similar

momondo Fare Finder

Use the filters below to find and compare flights from Watertown, New York to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

WatertownChicago

ART - ORD

ARTORD

Watertown

Tue 9/30

4:27 pm-8:43 pm

1 stop5h 16m

Chicago O'Hare Intl

Sat 10/4

8:35 am-4:02 pm

1 stop6h 27m

$238

WatertownChicago

ART - ORD

ARTORD

Watertown

Tue 9/30

4:27 pm-11:48 pm

2 stops8h 21m

Chicago O'Hare Intl

Sat 10/4

1:15 pm-8:29 pm

1 stop6h 14m

$244

WatertownChicago

ART - ORD

ARTORD

Watertown

Tue 9/30

4:27 pm-11:12 pm

2 stops7h 45m

Chicago O'Hare Intl

Sat 10/4

7:10 am-4:02 pm

2 stops7h 52m

$249

WatertownChicago

ART - ORD

ARTORD

Watertown

Wed 10/1

6:00 am-12:20 pm

1 stop7h 20m

Chicago O'Hare Intl

Sun 10/5

9:55 am-4:02 pm

1 stop5h 07m

$455

WatertownChicago

ART - ORD

ARTORD

Watertown

Wed 10/1

6:00 am-1:42 pm

2 stops8h 42m

Chicago O'Hare Intl

Sun 10/5

9:55 am-4:02 pm

1 stop5h 07m

$461

WatertownChicago

ART - ORD

ARTORD

Watertown

Wed 10/1

4:27 pm-11:12 pm

2 stops7h 45m

Chicago O'Hare Intl

Sun 10/5

7:21 am-4:02 pm

2 stops7h 41m

$740

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

How to get the cheapest flight ticket from Watertown, New York to Illinois

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Can stopping save me money on Watertown, New York to Illinois flights?

You could potentially save up to 48% on your flight if you consider stops on a Watertown, New York to Illinois flight.

Cheap Watertown, New York to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Watertown, New York to Illinois

Direct flights	None

There are no direct flights from Watertown, New York to Illinois. There are no popular flight routes from Watertown, New York to Illinois.

Search flight deals

When did momondo last update prices for flights from Watertown Airport to Illinois?
Prices for flights from Watertown Airport to Illinois refresh daily.
How old do you have to be to fly from Watertown Airport to Illinois?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Watertown Airport to Illinois.
What documentation or ID do you need to fly to Illinois?
The travel and health documents required for your trip to Illinois can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Illinois. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Why use momondo?

Why should I use momondo to find a flight deal from Watertown to Illinois?

It is quick and easy to find Watertown to Illinois flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Illinois that suits you.

Can I find flights from Watertown to Illinois with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Illinois from Watertown with this policy.

How can momondo help me find flights from Watertown to Illinois?

Once you have performed a search for Watertown to Illinois flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Watertown to Illinois right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Watertown to Illinois now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Illinois and let you know when they change.