$732+ 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 11/6. Fares are subject to change and may not be available on all flights or dates of travel.
ART — STL
Nov 25 — Dec 21
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
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
Cheapest
Best
Last-minute
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 October 26, 2026.
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 October 26, 2026.
This American Airlines deal was found by Cheapflights users on 10/22. 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 11/66:00 am -
1 stop7h 43m
Tue 11/106:30 am -
2 stops9h 51m
Deal found 10/22![American Airlines logo]()
$732
This American Airlines deal was found by Cheapflights users on 10/23. 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.
Thu 11/266:00 am -
1 stop7h 51m
Sat 11/287:02 am -
2 stops10h 10m
Deal found 10/23![American Airlines logo]()
$861
This American Airlines deal was found by Cheapflights users on 10/23. 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.
Thu 11/266:00 am -
1 stop7h 51m
Sun 11/2911:14 am -
2 stops10h 42m
Deal found 10/23![American Airlines logo]()
$865
This American Airlines deal was found by Cheapflights users on 10/23. 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.
Wed 11/256:05 pm -
1 stop19h 46m
Sat 11/286:02 am -
1 stop11h 10m
Deal found 10/23![American Airlines logo]()
$914
This American Airlines deal was found by Cheapflights users on 10/23. 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.
Wed 11/256:05 pm -
2 stops17h 28m
Sun 11/2911:14 am -
2 stops10h 42m
Deal found 10/23![American Airlines logo]()
$1,035
Best flights from Watertown to St. LouisDiscover carefully curated flight deals from Watertown to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 26, 2026.
Discover carefully curated flight deals from Watertown to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 26, 2026.
This American Airlines deal was found by Cheapflights users on 10/22. 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 11/66:00 am -
1 stop7h 43m
Tue 11/106:30 am -
2 stops9h 51m
Deal found 10/22![American Airlines logo]()
$732
This American Airlines deal was found by Cheapflights users on 10/23. 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.
Thu 11/266:00 am -
1 stop7h 51m
Sat 11/287:02 am -
2 stops10h 10m
Deal found 10/23![American Airlines logo]()
$861
This American Airlines deal was found by Cheapflights users on 10/23. 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.
Thu 11/266:00 am -
1 stop7h 51m
Sun 11/2911:14 am -
2 stops10h 42m
Deal found 10/23![American Airlines logo]()
$865
This American Airlines deal was found by Cheapflights users on 10/23. 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.
Wed 11/256:05 pm -
1 stop19h 46m
Sat 11/285:50 am -
2 stops11h 22m
Deal found 10/23![American Airlines logo]()
$920
This American Airlines deal was found by Cheapflights users on 10/23. 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.
Wed 11/256:05 pm -
2 stops17h 28m
Sun 11/2911:14 am -
2 stops10h 42m
Deal found 10/23![American Airlines logo]()
$1,035
Last-minute flights from Watertown to St. LouisDiscover last-minute flight deals from Watertown to St. Louis. Data last updated October 26, 2026 and is based on user searches.
Discover last-minute flight deals from Watertown to St. Louis. Data last updated October 26, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 10/22. 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 11/66:00 am -
1 stop7h 43m
Tue 11/106:30 am -
2 stops9h 51m
Deal found 10/22![American Airlines logo]()
$732
This American Airlines deal was found by Cheapflights users on 10/23. 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.
Wed 11/256:05 pm -
1 stop19h 46m
Sat 11/286:02 am -
1 stop11h 10m
Deal found 10/23![American Airlines logo]()
$914
This American Airlines deal was found by Cheapflights users on 10/23. 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.
Wed 11/256:05 pm -
2 stops17h 28m
Sun 11/2911:14 am -
2 stops10h 42m
Deal found 10/23![American Airlines logo]()
$1,035
This American Airlines deal was found by Cheapflights users on 10/23. 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.
Thu 11/266:00 am -
1 stop7h 51m
Sat 11/287:02 am -
2 stops10h 10m
Deal found 10/23![American Airlines logo]()
$861
This American Airlines deal was found by Cheapflights users on 10/23. 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.
Thu 11/266:00 am -
1 stop7h 51m
Sun 11/2911:14 am -
2 stops10h 42m
Deal found 10/23![American Airlines logo]()
$865
Find 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 October 26, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $732 (American Airlines) |
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 7,457,451 searches. Data last updated October 26, 2026.
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
Cheapest round-trip
Quickest round-trip
WatertownSt. Louis
ART Watertown - STL Lambert-St Louis
ARTSTL
Watertown
Fri 11/6
6:00 am-12:43 pm
1 stop7h 43m
Lambert-St Louis
Tue 11/10
6:30 am-5:21 pm
2 stops9h 51m
$732
WatertownSt. Louis
ART Watertown - STL Lambert-St Louis
ARTSTL
Watertown
Thu 11/26
6:00 am-12:51 pm
1 stop7h 51m
Lambert-St Louis
Sat 11/28
7:02 am-6:12 pm
2 stops10h 10m
$861
WatertownSt. Louis
ART Watertown - STL Lambert-St Louis
ARTSTL
Watertown
Thu 11/26
6:00 am-12:51 pm
1 stop7h 51m
Lambert-St Louis
Sun 11/29
11:14 am-10:56 pm
2 stops10h 42m
$865
WatertownSt. Louis
ART Watertown - STL Lambert-St Louis
ARTSTL
Watertown
Wed 11/25
6:05 pm-12:51 pm
1 stop19h 46m
Lambert-St Louis
Sat 11/28
5:50 am-6:12 pm
2 stops11h 22m
$920
WatertownSt. Louis
ART Watertown - STL Lambert-St Louis
ARTSTL
Watertown
Wed 11/25
6:05 pm-10:33 am
2 stops17h 28m
Lambert-St Louis
Sun 11/29
11:14 am-10:56 pm
2 stops10h 42m
$1,035
Sorted by cheapest first
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 October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- 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.
ART-STL
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.
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.
Traveling to a place near St. Louis?
Book flights to St. Louis if you plan to visit one of these locationsFairview Heights
O'Fallon
Fenton
Swansea
Eureka
Wentzville
Maryland Heights
Chesterfield
Collinsville
Edwardsville
Glencoe
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Popular flights
St. Louis flight routes