What is the cheapest airline that flies from Watertown to Illinois?

American Airlines is the most popular carrier operating from Watertown to Illinois

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 57% 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.

$385 Cheap Flights from Watertown to Illinois in 2026

1 adult

0 bags

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Find the cheapest flights from Watertown, New York to Illinois

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:00 am - 12:16 pm

ART

ORD

7h 16m

1 stop

8:23 am - 3:19 pm

ORD

ART

5h 56m

1 stop

$385American Airlines

Tue, Mar 10 - Sat, Mar 14

6:00 am - 2:16 pm

ART

ORD

9h 16m

2 stops

8:23 am - 3:19 pm

ORD

ART

5h 56m

1 stop

$391American Airlines

Tue, Mar 10 - Sat, Mar 14

4:01 pm - 12:06 am

ART

ORD

9h 05m

2 stops

7:10 am - 3:19 pm

ORD

ART

7h 09m

2 stops

$396American Airlines

Tue, Mar 10 - Sat, Mar 14

6:00 am - 12:44 pm

ART

STL

7h 44m

1 stop

2:19 pm - 3:19 pm

STL

ART

24h 00m

2 stops

$407American Airlines

Tue, Mar 17 - Mon, Mar 23

4:01 pm - 11:44 pm

ART

STL

8h 43m

2 stops

2:19 pm - 3:19 pm

STL

ART

24h 00m

2 stops

$412American Airlines

Tue, Mar 17 - Mon, Mar 23

6:00 am - 12:44 pm

ART

STL

7h 44m

1 stop

11:59 am - 10:55 pm

STL

ART

9h 56m

2 stops

$464American Airlines

Tue, Mar 17 - Tue, Mar 24

4:01 pm - 11:44 pm

ART

STL

8h 43m

2 stops

6:00 am - 3:19 pm

STL

ART

8h 19m

2 stops

$469American Airlines

Tue, Mar 17 - Tue, Mar 24

6:00 am - 12:44 pm

ART

STL

7h 44m

1 stop

6:00 am - 3:19 pm

STL

ART

8h 19m

2 stops

$474American Airlines

Tue, Mar 17 - Sun, Mar 22

4:01 pm - 11:44 pm

ART

STL

8h 43m

2 stops

6:00 am - 3:19 pm

STL

ART

8h 19m

2 stops

$479American Airlines

Tue, Mar 17 - Sun, Mar 22

6:00 am - 12:44 pm

ART

STL

7h 44m

1 stop

6:20 pm - 3:19 pm

STL

ART

19h 59m

2 stops

$487American Airlines

Tue, Mar 17 - Wed, Mar 25

American Airlines flights from Watertown, New York to Illinois

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

American Airlines

Mar 10

ART6:00 amWatertown

7h 16m

1 stop

ORD12:16 pmChicago O'Hare Intl

Mar 14

ORD8:23 amChicago O'Hare Intl

5h 56m

1 stop

ART3:19 pmWatertown

$385

American Airlines

Mar 10

ART6:00 amWatertown

9h 16m

2 stops

ORD2:16 pmChicago O'Hare Intl

Mar 14

ORD8:23 amChicago O'Hare Intl

5h 56m

1 stop

ART3:19 pmWatertown

$391

American Airlines

Mar 10

ART4:01 pmWatertown

9h 05m

2 stops

ORD12:06 amChicago O'Hare Intl

Mar 14

ORD7:10 amChicago O'Hare Intl

7h 09m

2 stops

ART3:19 pmWatertown

$396

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 3/10

6:00 am-12:16 pm

1 stop7h 16m

Chicago O'Hare Intl

Sat 3/14

8:23 am-3:19 pm

1 stop5h 56m

$385

WatertownChicago

ART - ORD

ARTORD

Watertown

Tue 3/10

6:00 am-2:16 pm

2 stops9h 16m

Chicago O'Hare Intl

Sat 3/14

8:23 am-3:19 pm

1 stop5h 56m

$391

WatertownChicago

ART - ORD

ARTORD

Watertown

Tue 3/10

4:01 pm-12:06 am

2 stops9h 05m

Chicago O'Hare Intl

Sat 3/14

7:10 am-3:19 pm

2 stops7h 09m

$396

WatertownSt. Louis

ART - STL

ARTSTL

Watertown

Tue 3/17

6:00 am-12:44 pm

1 stop7h 44m

Lambert-St Louis

Mon 3/23

2:19 pm-3:19 pm

2 stops24h 00m

$407

WatertownSt. Louis

ART - STL

ARTSTL

Watertown

Tue 3/17

4:01 pm-11:44 pm

2 stops8h 43m

Lambert-St Louis

Mon 3/23

2:19 pm-3:19 pm

2 stops24h 00m

$412

WatertownSt. Louis

ART - STL

ARTSTL

Watertown

Tue 3/17

6:00 am-12:44 pm

1 stop7h 44m

Lambert-St Louis

Tue 3/24

11:59 am-10:55 pm

2 stops9h 56m

$464

WatertownSt. Louis

ART - STL

ARTSTL

Watertown

Tue 3/17

4:01 pm-11:44 pm

2 stops8h 43m

Lambert-St Louis

Tue 3/24

6:00 am-3:19 pm

2 stops8h 19m

$469

WatertownSt. Louis

ART - STL

ARTSTL

Watertown

Tue 3/17

6:00 am-12:44 pm

1 stop7h 44m

Lambert-St Louis

Sun 3/22

6:00 am-3:19 pm

2 stops8h 19m

$474

WatertownSt. Louis

ART - STL

ARTSTL

Watertown

Tue 3/17

4:01 pm-11:44 pm

2 stops8h 43m

Lambert-St Louis

Sun 3/22

6:00 am-3:19 pm

2 stops8h 19m

$479

WatertownSt. Louis

ART - STL

ARTSTL

Watertown

Tue 3/17

6:00 am-12:44 pm

1 stop7h 44m

Lambert-St Louis

Wed 3/25

6:20 pm-3:19 pm

2 stops19h 59m

$487

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted 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

Fastest flight time	6h 30m
Direct flights	None

The fastest flight from Watertown, New York to Illinois takes 6h 30m

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.