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Cheap flights from Missouri to Watertown from $551

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Missouri to Watertown departing on 8/27. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Missouri to Watertown

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
11:19 am - 7:00 pmSTL  Lambert-St Louis-ART Watertown
6h 41m1 stop Philadelphia
American Airlines Logo
4:00 pm - 12:14 amART  Watertown-STL Lambert-St Louis
9h 14m2 stops Philadelphia Chicago O'Hare Intl
$705American Airlines
Sat, Aug 29 - Wed, Sep 2
American Airlines Logo
9:32 am - 7:00 pmSTL  Lambert-St Louis-ART Watertown
8h 28m2 stops Chicago O'Hare Intl Philadelphia
American Airlines Logo
4:00 pm - 12:14 amART  Watertown-STL Lambert-St Louis
9h 14m2 stops Philadelphia Chicago O'Hare Intl
$773American Airlines
Sat, Aug 29 - Wed, Sep 2
American Airlines Logo
6:41 am - 5:14 pmMCI  Kansas City-ART Watertown
9h 33m2 stops Charlotte Douglas Philadelphia
American Airlines Logo
6:00 am - 12:58 pmART  Watertown-MCI Kansas City
7h 58m1 stop Philadelphia
$864American Airlines
Thu, Dec 17 - Sat, Jan 2
American Airlines Logo
10:15 am - 10:49 pmMCI  Kansas City-ART Watertown
11h 34m2 stops Washington, D.C. Reagan-National Philadelphia
American Airlines Logo
6:00 am - 6:04 pmART  Watertown-MCI Kansas City
13h 04m2 stops Philadelphia Chicago O'Hare Intl
$869American Airlines
Thu, Dec 17 - Sat, Jan 2
American Airlines Logo
11:19 am - 7:00 pmSTL  Lambert-St Louis-ART Watertown
6h 41m1 stop Philadelphia
American Airlines Logo
4:00 pm - 11:34 pmART  Watertown-STL Lambert-St Louis
8h 34m1 stop Philadelphia
$952American Airlines
Sat, Aug 29 - Wed, Sep 2
American Airlines Logo
6:00 am - 10:49 pmMCI  Kansas City-ART Watertown
15h 49m1 stop Philadelphia
American Airlines Logo
6:00 am - 9:49 pmART  Watertown-MCI Kansas City
16h 49m1 stop Philadelphia
$1,000American Airlines
Thu, Dec 17 - Sat, Jan 2

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American Airlines flights from Missouri to Watertown, New York

Our best American Airlines deals on Missouri to Watertown, New York flight tickets
American Airlines
Aug 29
STL11:19 amLambert-St Louis
6h 41m
1 stop
ART7:00 pmWatertown
Sep 2
ART4:00 pmWatertown
9h 14m
2 stops
STL12:14 amLambert-St Louis
$705
American Airlines
Aug 29
STL9:32 amLambert-St Louis
8h 28m
2 stops
ART7:00 pmWatertown
Sep 2
ART4:00 pmWatertown
9h 14m
2 stops
STL12:14 amLambert-St Louis
$773
American Airlines
Dec 17
MCI6:41 amKansas City
9h 33m
2 stops
ART5:14 pmWatertown
Jan 2
ART6:00 amWatertown
7h 58m
1 stop
MCI12:58 pmKansas City
$864

momondo Fare Finder

 
Customize your flight search to find flights from Missouri to Watertown, New York 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, momondo users made 832,500 searches. Data last updated August 15, 2026.
Use the filters below to find and compare flights from Missouri to Watertown, New York that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisWatertown

STL Lambert-St Louis - ART Watertown

STLART

Lambert-St Louis

Sat 8/29

11:19 am-7:00 pm

1 stop6h 41m

Watertown

Wed 9/2

4:00 pm-12:14 am

2 stops9h 14m

$705

St. LouisWatertown

STL Lambert-St Louis - ART Watertown

STLART

Lambert-St Louis

Sat 8/29

9:32 am-7:00 pm

2 stops8h 28m

Watertown

Wed 9/2

4:00 pm-12:14 am

2 stops9h 14m

$773

Kansas CityWatertown

MCI Kansas City - ART Watertown

MCIART

Kansas City

Thu 12/17

6:41 am-5:14 pm

2 stops9h 33m

Watertown

Sat 1/2

6:00 am-12:58 pm

1 stop7h 58m

$864

Kansas CityWatertown

MCI Kansas City - ART Watertown

MCIART

Kansas City

Thu 12/17

10:15 am-10:49 pm

2 stops11h 34m

Watertown

Sat 1/2

6:00 am-6:04 pm

2 stops13h 04m

$869
Quickest round-trip

St. LouisWatertown

STL Lambert-St Louis - ART Watertown

STLART

Lambert-St Louis

Sat 8/29

11:19 am-7:00 pm

1 stop6h 41m

Watertown

Wed 9/2

4:00 pm-11:34 pm

1 stop8h 34m

$952

Kansas CityWatertown

MCI Kansas City - ART Watertown

MCIART

Kansas City

Thu 12/17

6:00 am-10:49 pm

1 stop15h 49m

Watertown

Sat 1/2

6:00 am-9:49 pm

1 stop16h 49m

$1,000
Cheapest one-way
Quickest one-way

St. LouisWatertown

STL Lambert-St Louis - ART Watertown

STLART

Lambert-St Louis

Thu 8/27

10:44 am-10:55 pm

2 stops11h 11m

$551

St. LouisWatertown

STL Lambert-St Louis - ART Watertown

STLART

Lambert-St Louis

Thu 8/27

6:00 am-10:55 pm

1 stop15h 55m

$701

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Watertown from

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

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

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

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

What airlines fly to Watertown, New York?

Delta, American Airlines and United Airlines are the top three most popular airlines that fly to Watertown, New York from Missouri according to our data. Delta is the first choice among our users, with 43% of people opting to fly with this airline when traveling to Watertown, New York. Keep in mind that there are 3 different airlines that fly to Watertown, New York on a routine basis, so you have a few additional options to choose from.

Cheap Missouri to Watertown, New York flight deals and tips

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

Fastest flight time

6h 41m

Direct flights

None
The fastest flight from Missouri to Watertown, New York takes 6h 41m
There are no direct flights from Missouri to Watertown, New York. There are no popular flight routes from Missouri to Watertown, New York.
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Frequently asked questions about flying from Missouri to Watertown, New York

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

    Prices for flights from Missouri to Watertown Airport refresh daily.

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Missouri to Watertown Airport.

  • What documentation or ID do you need to fly to Watertown Airport?

    The travel and health documents you'll need for your trip to Watertown Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Watertown Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Traveling to a place near Watertown?

Book flights to Watertown if you plan to visit one of these locations
Alexandria Bay
Clayton

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Watertown from Missouri.

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

Yes. All flights to Watertown from Missouri on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Missouri to Watertown.

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

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

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