$222 Cheap Flights from Watertown (ATY) to St. Louis (STL)

Bundle Your Flight + Hotel & Save!

Featured airlines

Top nine airline logos for desktop

    Plan, book, fly with confidence
  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 30% on select hotels after you book a flight*
  • one key icon
    Earn twice
    Earn your airline miles on top of our OneKeyCash

Cheap Flights from Watertown to St. Louis (ATY-STL)

Prices were available within the past 7 days and start at $222 for one-way flights and $385 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

KEY LIME AIR DBA DENVER AIR CONNECTION
KEY LIME AIR DBA DENVER AIR CONNECTION
KEY LIME AIR DBA DENVER AIR CONNECTION
KEY LIME AIR DBA DENVER AIR CONNECTION
KEY LIME AIR DBA DENVER AIR CONNECTION
KEY LIME AIR DBA DENVER AIR CONNECTION
KEY LIME AIR DBA DENVER AIR CONNECTION
KEY LIME AIR DBA DENVER AIR CONNECTION
KEY LIME AIR DBA DENVER AIR CONNECTION
KEY LIME AIR DBA DENVER AIR CONNECTION
KEY LIME AIR DBA DENVER AIR CONNECTION
KEY LIME AIR DBA DENVER AIR CONNECTION
KEY LIME AIR DBA DENVER AIR CONNECTION
Flights from Watertown (ATY) to St. Louis (STL)
Origin airport
Watertown Regional
Destination airport
Lambert-St. Louis Intl.
Roundtrip price
$385
Distance
551 mi

Watertown to St. Louis Flights

Whether you’re looking for a grand adventure or just want to get away for a last-minute break, flights from Watertown to St. Louis offer the perfect respite. Not only does exploring St. Louis provide the chance to make some magical memories, dip into delectable dishes, and tour the local landmarks, but the cheap airfare means you won’t bust your budget. So no matter whether your ideal itinerary involves flying one way, non-stop, or round trip, you’re bound to find flights that match your schedule on Expedia, and at prices that won’t shock your wallet.

Bagging a cheap flight from Watertown to St. Louis may mean more dollars to spend on for one-of-a-kind souvenirs when you arrive, but it doesn’t mean you have to skimp on your travel experience, as Expedia offers a sizzling selection of cheap airlines that’ll put you in your happy place on their planes, whether that’s getting lost in a hair-raising airport thriller, dreaming on the passing landscape over a glass of bubbly, or jotting down your vacation bucket list at 38,000 feet. There’s also bound to be plenty of opportunities to snap a few photos of the high life that will make your friends green with envy. After all, enjoying the journey is part of the fun.

With so many affordable flights and so many wonderful adventures awaiting you, there’s no reason to put off booking a fantastic flight from to today. So don’t leave it to the last minute to make your dream trip a reality: pack your bags with your go-to travel accessories, put together your list of must-see attractions and can’t-miss activities, and get ready to broaden your horizons – with Expedia, the wonders of St. Louis are only a plane trip away. Book your travel arrangements with us today!

If you would like to book flights to St. Louis more flexibly many prefer to purchase one-way tickets with options to take different airlines. A one way ticket to St. Louis is $222 now!

Frequently asked questions

Is it cheaper to buy a plane ticket from ATY to Lambert-St. Louis Intl. Airport (STL) last minute?
When it comes to booking your flights, it’s better to be prepared. While it’s possible to find a last-minute deal on an ATY to Lambert Field flight, fares usually don’t get cheaper as the date of departure nears. Based on flight pricing and demand studies in 2022, we have found that the sweet spot to lock in a domestic flight is between 28 – 35 days in advance. For international travel it’s between three and four months.
What airports do you fly into for Central United States from Watertown?
There are three airports you can jet into on your journey from Watertown to Central United States: Lambert-St. Louis Intl. Airport (STL), Spirit of St. Louis Airport (SUS) and St. Louis Downtown Airport (CPS). Lambert-St. Louis Intl. Airport (STL) is roughly 180 mi east of central Central United States. Before selecting where to land, keep in mind flight prices and availability, the distance to your hotel and the convenience and cost of getting from the airport.
Can I change the date of my flight from Watertown Regional Airport to Lambert-St. Louis Intl. Airport (STL)?
It’s so easy to make changes to your Watertown Regional Airport to STL trip yourself. Simply log in to the Expedia Trips portal and click on “change flight.” Look around for new flights and book the one that fits your plans. You’ll see an estimate of your flight change fee, if applicable. Alternatively, use our Customer Service portal to connect with our Virtual Agent and quickly get answers to all your questions.
*Available to One Key members.