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Watertown

$319+ Cheap flights from St. Louis to Watertown, NY (STL - 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 9/27. Fares are subject to change and may not be available on all flights or dates of travel.
STL — ART
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
1 adult, Economy
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Cheap flight deals from St. Louis to Watertown

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Watertown (ART). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 3, 2025.

Round-trip from

$319
(American Airlines)
From Lambert-St Louis to Watertown
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Find flight deals from St. Louis to Watertown

Cheapest flights from St. Louis to Watertown
Explore the most affordable flight options available from St. Louis to Watertown. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

This American Airlines deal was found by Cheapflights users on 6/30. 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.
Sat 9/276:27 amSTL - ART
2 stops8h 35mAmerican Airlines
Wed 10/16:00 amART - STL
2 stops13h 15mAmerican Airlines
Deal found 6/30$319

Cheapflights Fare Finder

Customize your flight search to find flights from St. Louis 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 July 3, 2025.
Use the filters below to find and compare flights from St. Louis to Watertown that are best for you.

Fly from

St. Louis

Fly to

Watertown

Route

Depart

Return

Price

St. LouisWatertown

STL - ART

STLART

Lambert-St Louis

Sat 9/27

6:27 am-4:02 pm

2 stops8h 35m

Watertown

Wed 10/1

6:00 am-6:15 pm

2 stops13h 15m

$319

St. LouisWatertown

STL - ART

STLART

Lambert-St Louis

Sat 8/2

5:14 pm-10:56 pm

1 stop4h 42m

$375

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/3

Best time to book a flight from St. Louis to Watertown

Have a flexible travel schedule? Discover the best time to fly to Watertown from St. Louis 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 St. Louis to Watertown

What is the cheapest month to book a flight from St. Louis to Watertown, New York?

Currently, February is the cheapest month in which you can book a flight from St. Louis to Watertown, New York (average of $187). Flying from St. Louis 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.

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 July 3, 2025.
Peruse reviews from past customers who have flown with American Airlines from St. Louis to Watertown to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.2
Good
10,000 reviews

Boarding

7.5

Food

6.5

Crew

8.0

Comfort

7.2

Entertainment

6.9

Overall

7.2

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

Boarding

7.5

Food

6.5

Crew

8.0

Comfort

7.2

Entertainment

6.9

Overall

7.2

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 St. Louis to Watertown. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What is the cheapest airline to fly from St. Louis to Watertown, New York round-trip?

    Currently priced at $319, American Airlines will fly you from St. Louis to Watertown, New York and back. In addition to American Airlines, many other airlines offer competitively priced options for your trip.

  • Can I find deals for flights from St. Louis to Watertown that include hotel bookings?

    Yes. In addition to deals on St. Louis to Watertown flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to Watertown?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Watertown.

  • Can I find deals for business class flights from St. Louis to Watertown?

    Yes. Cheapflights offers flight deals from St. Louis 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 St. Louis to Watertown, New York?

    Currently, February is the cheapest month in which you can book a flight from St. Louis to Watertown, New York (average of $187). Flying from St. Louis 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

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Top airline flying from St. Louis to Watertown

Discover the top airline that operate flights from St. Louis to Watertown. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$307Average$361FlexibilityNo cancel feeOn-time71%

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