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$572+ Cheap flights from Watertown, NY to St. Louis (ART - STL)

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 6/27. Fares are subject to change and may not be available on all flights or dates of travel.
ART — STL
Mar 30 — Apr 61
Sun 3/30
Sun 4/6
1 adult, Economy
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Cheap flight deals from Watertown to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Watertown (ART) to St. Louis (STL). 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 March 25, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$572
(American Airlines)
Provider with most accurate pricing for Watertown-Lambert-St Louis flight deals.
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Provider most trusted by Cheapflights users for Watertown-Lambert-St Louis flights.
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From Watertown to Lambert-St Louis
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Find flight deals from Watertown to St. Louis

Cheapest flights from Watertown to St. Louis
Explore the most affordable flight options available from Watertown to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 25, 2025.

This American Airlines deal was found by Cheapflights users on 3/24. 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.
Fri 6/276:00 amART - STL
1 stop6h 59mAmerican Airlines
Fri 7/46:00 amSTL - ART
2 stops8h 08mAmerican Airlines
Deal found 3/24$572

Cheapflights Fare Finder

Customize your flight search to find flights from Watertown to St. Louis 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 March 25, 2025.
Use the filters below to find and compare flights from Watertown to St. Louis that are best for you.

Fly from

Watertown

Fly to

St. Louis

Route

Depart

Return

Price

WatertownSt. Louis

ART - STL

ARTSTL

Watertown

Fri 6/27

6:00 am-11:59 am

1 stop6h 59m

Lambert-St Louis

Fri 7/4

6:00 am-3:08 pm

2 stops8h 08m

$572

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/24

Compare providers for flights from Watertown to St. Louis

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Watertown to St. Louis in March.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Watertown, New York-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Watertown, New York-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Watertown, New York-St. Louis flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Watertown, New York-St. Louis flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Watertown, New York-St. Louis flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

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

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

Currently, August is the cheapest month in which you can book a flight from Watertown, New York to St. Louis (average of $311). Flying from Watertown, New York to St. Louis in March is currently the most expensive (average of $356). 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.

Rainfall in St. Louis by month

Plan your trip to St. Louis by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

Temperature in St. Louis by month

Plan your trip to St. Louis by taking into account the average temperature totals by month.

If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. 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 St. Louis. Reviews last updated March 25, 2025.
American Airlines
7.2
Good
10,000 reviews

Boarding

7.5

Comfort

7.2

Entertainment

6.9

Overall

7.2

Food

6.5

Crew

8.0

Reviews

1 / 20
6.0
Good

sheila,Mar 2025

DFW - MSP

We were delayed for 3 hours with no real reason or offer for compensation
American Airlines
7.2
Good
10,000 reviews
American Airlines
7.2
Good
10,000 reviews

Boarding

7.5

Comfort

7.2

Entertainment

6.9

Overall

7.2

Food

6.5

Crew

8.0

Reviews

1 / 20
6.0
Good

sheila,Mar 2025

DFW - MSP

We were delayed for 3 hours with no real reason or offer for compensation

Related info for your journey

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

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Watertown, New York to St. Louis (average of $311). Flying from Watertown, New York to St. Louis in March is currently the most expensive (average of $356). 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

Traveling to a place near Watertown?

Book flights to Watertown if you plan to visit one of these locations
Fenton
Fairview Heights
Maryland Heights
Collinsville
Wentzville
Eureka
St. Peters
Festus
Glencoe
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Farmington
Chesterfield

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