What is the cheapest day to fly from Watertown, New York to St. Louis?

Travelers seeking maximum savings on their Watertown, New York to St. Louis flight should consider departing on Thursday afternoons when fares are most often at their lowest. Thursday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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.

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).

What is the cheapest time of day to fly from ART to STL?

Unlike at noon, when flights are generally more expensive, you can save up to 4% on flights from Watertown, New York to St. Louis by exploring options for tickets in the morning.

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.

$820+ Flights from Watertown, NY to St. Louis

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Cheap flight deals from Watertown to St. Louis

Round-trip from	$820 (American Airlines)

From Watertown to Lambert-St Louis

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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 July 30, 2025.

Sun 8/173:14 pmART - STL

1 stop6h 33mAmerican Airlines

Wed 8/204:54 pmSTL - ART

1 stop4h 49mAmerican Airlines

Deal found 7/30

$820

Best flights from Watertown to St. Louis
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 July 30, 2025.

Sun 8/173:14 pmART - STL

1 stop6h 33mAmerican Airlines

Wed 8/204:54 pmSTL - ART

1 stop4h 49mAmerican Airlines

Deal found 7/30

$820

Last-minute flights from Watertown to St. Louis
Discover last-minute flight deals from Watertown to St. Louis. Data last updated July 30, 2025 and is based on user searches.

Sun 8/173:14 pmART - STL

1 stop6h 33mAmerican Airlines

Wed 8/204:54 pmSTL - ART

1 stop4h 49mAmerican Airlines

Deal found 7/30

$820

Fly from

Fly to

Route

Depart

Return

Price

WatertownSt. Louis

ART - STL

ARTSTL

Watertown

Sun 8/17

3:14 pm-8:47 pm

1 stop6h 33m

Lambert-St Louis

Wed 8/20

4:54 pm-10:43 pm

1 stop4h 49m

$820

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

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.

Reviews of airlines servicing St. Louis

See what other customers who have flown with American Airlines from Watertown to St. Louis have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

American Airlines

7.2

Good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Leonardo,May 2025

JFK - BGI

Good airline and so far i give them 8 out of 10.

American Airlines

7.2

Good

10,000 reviews

American Airlines

7.2

Good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Leonardo,May 2025

JFK - BGI

Good airline and so far i give them 8 out of 10.

Related info for your journey

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.

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$820+ 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 8/17. 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

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2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Watertown to St. Louis

Round-trip from

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 July 30, 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 July 30, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Watertown to St. Louis that are best for you.

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?

Reviews of airlines servicing St. Louis

See what other customers who have flown with American Airlines from Watertown to St. Louis have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

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?

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

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

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

Traveling to a place near St. Louis?

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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 July 30, 2025.