$375+ Cheap flights from Watertown, NY to St. Louis (ART - STL)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/18. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from Watertown to St. Louis with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.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 June 12, 2025.
Round-trip from | $849 (American Airlines) |
|---|---|
One-way from | $375 (American Airlines) |
Find flight deals from Watertown to St. Louis
Cheapest flights from Watertown to St. LouisExplore 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 June 12, 2025.
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 June 12, 2025.
This American Airlines deal was found by Cheapflights users on 6/10. 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.
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 June 12, 2025.
Use the filters below to find and compare flights from Watertown to St. Louis that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
WatertownSt. Louis
ART - STL
ARTSTL
Watertown
Wed 11/26
4:40 pm-8:16 pm
1 stop4h 36m
Lambert-St Louis
Sun 11/30
6:43 am-3:01 pm
1 stop7h 18m
WatertownSt. Louis
ART - STL
ARTSTL
Watertown
Wed 6/18
3:38 pm-8:19 pm
1 stop5h 41m
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.
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 June 12, 2025.
Entertainment
Boarding
Comfort
Food
Overall
Crew
Reviews
Leonardo,May 2025
JFK - BGI
Entertainment
Boarding
Comfort
Food
Overall
Crew
Reviews
Leonardo,May 2025
JFK - BGI