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.

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

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

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.

$525 Cheap Flights from Watertown, New York to Illinois in 2026

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 - 6:05 pmART Watertown-ORD Chicago O'Hare Intl

13h 05m2 stops Philadelphia Cleveland Hopkins Intl

11:51 am - 10:50 pmORD Chicago O'Hare Intl-ART Watertown

9h 59m2 stops Cleveland Hopkins Intl Philadelphia

$542American Airlines

Fri, Sep 11 - Sat, Sep 12

6:00 am - 6:05 pmART Watertown-ORD Chicago O'Hare Intl

13h 05m2 stops Philadelphia Cleveland Hopkins Intl

4:00 pm - 10:50 pmORD Chicago O'Hare Intl-ART Watertown

5h 50m1 stop Philadelphia

$547American Airlines

Fri, Sep 11 - Sat, Sep 12

6:00 am - 6:05 pmART Watertown-ORD Chicago O'Hare Intl

13h 05m2 stops Philadelphia Cleveland Hopkins Intl

8:45 am - 3:53 pmORD Chicago O'Hare Intl-ART Watertown

6h 08m1 stop Philadelphia

$550American Airlines

Fri, Sep 11 - Sun, Sep 13

4:00 pm - 5:46 amART Watertown-ORD Chicago O'Hare Intl

14h 46m2 stops Philadelphia Cleveland Hopkins Intl

8:19 am - 3:35 pmORD Chicago O'Hare Intl-ART Watertown

6h 16m1 stop Philadelphia

$557American Airlines

Fri, Sep 4 - Tue, Sep 8

4:00 pm - 5:46 amART Watertown-ORD Chicago O'Hare Intl

14h 46m2 stops Philadelphia Cleveland Hopkins Intl

8:19 am - 3:35 pmORD Chicago O'Hare Intl-ART Watertown

6h 16m1 stop Philadelphia

$560American Airlines

Fri, Sep 4 - Mon, Sep 7

4:00 pm - 5:46 amART Watertown-ORD Chicago O'Hare Intl

14h 46m2 stops Philadelphia Cleveland Hopkins Intl

11:45 am - 10:55 pmORD Chicago O'Hare Intl-ART Watertown

10h 10m2 stops Cleveland Hopkins Intl Philadelphia

$562American Airlines

Fri, Sep 4 - Mon, Sep 7

4:18 pm - 9:30 pmART Watertown-ORD Chicago O'Hare Intl

6h 12m1 stop Philadelphia

6:40 am - 10:50 pmORD Chicago O'Hare Intl-ART Watertown

15h 10m2 stops Cleveland Hopkins Intl Philadelphia

$564American Airlines

Thu, Sep 10 - Sat, Sep 12

6:00 am - 12:18 pmART Watertown-ORD Chicago O'Hare Intl

7h 18m1 stop Philadelphia

4:50 pm - 11:04 pmORD Chicago O'Hare Intl-ART Watertown

5h 14m1 stop Philadelphia

$565American Airlines

Tue, Dec 22 - Sat, Dec 26

4:18 pm - 10:35 pmART Watertown-ORD Chicago O'Hare Intl

7h 17m1 stop Philadelphia

4:54 pm - 10:50 pmORD Chicago O'Hare Intl-ART Watertown

4h 56m1 stop Philadelphia

$568American Airlines

Thu, Sep 10 - Sat, Sep 12

6:00 am - 11:08 amART Watertown-ORD Chicago O'Hare Intl

6h 08m1 stop Philadelphia

4:54 pm - 10:50 pmORD Chicago O'Hare Intl-ART Watertown

4h 56m1 stop Philadelphia

$569American Airlines

Sat, Sep 5 - Fri, Sep 11

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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 11

ART6:00 amWatertown

13h 05m

2 stops

ORD6:05 pmChicago O'Hare Intl

Sep 12

ORD11:51 amChicago O'Hare Intl

9h 59m

2 stops

ART10:50 pmWatertown

$542

American Airlines

Sep 11

ART6:00 amWatertown

13h 05m

2 stops

ORD6:05 pmChicago O'Hare Intl

Sep 12

ORD4:00 pmChicago O'Hare Intl

5h 50m

1 stop

ART10:50 pmWatertown

$547

American Airlines

Sep 11

ART6:00 amWatertown

13h 05m

2 stops

ORD6:05 pmChicago O'Hare Intl

Sep 13

ORD8:45 amChicago O'Hare Intl

6h 08m

1 stop

ART3:53 pmWatertown

$550

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

Cheapest round-trip

WatertownChicago

ART Watertown - ORD Chicago O'Hare Intl

ARTORD

Watertown

Fri 9/11

6:00 am-6:05 pm

2 stops13h 05m

Chicago O'Hare Intl

Sat 9/12

11:51 am-10:50 pm

2 stops9h 59m

$542

WatertownChicago

ART Watertown - ORD Chicago O'Hare Intl

ARTORD

Watertown

Fri 9/11

6:00 am-6:05 pm

2 stops13h 05m

Chicago O'Hare Intl

Sat 9/12

4:00 pm-10:50 pm

1 stop5h 50m

$547

WatertownChicago

ART Watertown - ORD Chicago O'Hare Intl

ARTORD

Watertown

Fri 9/11

6:00 am-6:05 pm

2 stops13h 05m

Chicago O'Hare Intl

Sun 9/13

8:45 am-3:53 pm

1 stop6h 08m

$550

WatertownChicago

ART Watertown - ORD Chicago O'Hare Intl

ARTORD

Watertown

Fri 9/4

4:00 pm-5:46 am

2 stops14h 46m

Chicago O'Hare Intl

Tue 9/8

8:19 am-3:35 pm

1 stop6h 16m

$557

WatertownChicago

ART Watertown - ORD Chicago O'Hare Intl

ARTORD

Watertown

Fri 9/4

4:00 pm-5:46 am

2 stops14h 46m

Chicago O'Hare Intl

Mon 9/7

8:19 am-3:35 pm

1 stop6h 16m

$560

WatertownChicago

ART Watertown - ORD Chicago O'Hare Intl

ARTORD

Watertown

Fri 9/4

4:00 pm-5:46 am

2 stops14h 46m

Chicago O'Hare Intl

Mon 9/7

11:45 am-10:55 pm

2 stops10h 10m

$562

WatertownChicago

ART Watertown - ORD Chicago O'Hare Intl

ARTORD

Watertown

Thu 9/10

4:18 pm-9:30 pm

1 stop6h 12m

Chicago O'Hare Intl

Sat 9/12

6:40 am-10:50 pm

2 stops15h 10m

$564

WatertownChicago

ART Watertown - ORD Chicago O'Hare Intl

ARTORD

Watertown

Tue 12/22

6:00 am-12:18 pm

1 stop7h 18m

Chicago O'Hare Intl

Sat 12/26

4:50 pm-11:04 pm

1 stop5h 14m

$565

WatertownChicago

ART Watertown - ORD Chicago O'Hare Intl

ARTORD

Watertown

Thu 9/10

4:18 pm-10:35 pm

1 stop7h 17m

Chicago O'Hare Intl

Sat 9/12

4:54 pm-10:50 pm

1 stop4h 56m

$568

Quickest round-trip

WatertownChicago

ART Watertown - ORD Chicago O'Hare Intl

ARTORD

Watertown

Sat 9/5

6:00 am-11:08 am

1 stop6h 08m

Chicago O'Hare Intl

Fri 9/11

4:54 pm-10:50 pm

1 stop4h 56m

$569

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 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 08m
Direct flights	None

The fastest flight from Watertown, New York to Illinois takes 6h 08m

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

Frequently asked questions about flying from Watertown, New York to Illinois

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.