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

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

In terms of precipitation, rainfall in Watertown, New York ranges from 2.7 - 4.1 inches per month. December is typically the wettest month, when rainfall can reach 4.1 in. June is typically the driest time to visit Watertown, New York when rainfall is around 2.7 in.

If weather is an important factor for your trip to Watertown, New York, 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 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

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

Tuesday flights are generally found to be more expensive for flights from St. Louis to Watertown, New York. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Watertown, New York.

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

A simple way to save on the total cost of your ticket is to fly from St. Louis to Watertown, New York at noon. If you’re flexible enough to do this you can expect to save up to 6% on your trip compared to booking a flight in the morning.

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.

$329+ Flights from St. Louis to Watertown, NY

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Cheap flight deals from St. Louis to Watertown

Round-trip from	$329 (American Airlines)

From Lambert-St Louis to Watertown

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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 julio 16, 2025.

sáb. 9/276:10 amSTL - ART

2 stops8h 52mAmerican Airlines

mié. 10/16:00 amART - STL

2 stops8h 09mAmerican Airlines

Deal found 7/15

$329

Best flights from St. Louis to Watertown
Discover carefully curated flight deals from St. Louis to Watertown that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated julio 16, 2025.

sáb. 9/276:10 amSTL - ART

2 stops8h 52mAmerican Airlines

mié. 10/16:00 amART - STL

2 stops8h 09mAmerican Airlines

Deal found 7/15

$329

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

St. LouisWatertown

STL - ART

STLART

Lambert-St Louis

sáb. 9/27

6:10 am-4:02 pm

2 stops8h 52m

Watertown

mié. 10/1

6:00 am-1:09 pm

2 stops8h 09m

$329

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/15

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

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

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

Reviews

1 / 20

2.0

Mediocre

Andrew,May 2025

LAX - MIA

Related info for your journey

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.

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Top airline flying from St. Louis to Watertown

Airline	Cheapest	Average	Flexibility	On-time
American Airlines	Cheapest$307	Average$361	FlexibilityNo cancel fee	On-time71%

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$329+ 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.

Find cheap flights from St. Louis to Watertown with Cheapflights

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Cheap flight deals from St. Louis to Watertown

Round-trip from

Find flight deals from St. Louis to Watertown

Cheapest flights from St. Louis to WatertownExplore 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 julio 16, 2025.

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 julio 16, 2025.

Cheapflights Fare Finder

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

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.

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?

Reviews of airlines servicing Watertown

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.

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.

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

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

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

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

Traveling to a place near Watertown?

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Alternative routes for St. Louis to Watertown

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Top airline flying from St. Louis to Watertown

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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 julio 16, 2025.