$310 Cheap Flights from Massena (MSS) to St. Louis (STL)

View $310 flight on Fri, Oct 17, 2025Opens in a new window

Popular airlines from Massena, NY (MSS-Massena Intl.) to St. Louis Lambert Intl. Airport (STL)

Cheap Flights from Massena to St. Louis (MSS-STL)

Prices were available within the past 7 days and start at $310 for one-way flights and $466 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Boutique Air
Wed, Oct 15 - Wed, Oct 22
MSS
Massena
STL
St. Louis
$466 Roundtrip, found 5 days ago
$466
Roundtrip
found 5 days ago
Select Boutique Air flight, departing Wed, Oct 15 from Massena to St. Louis, returning Wed, Oct 22, priced at $466 found 5 days ago
Boutique Air
Wed, Oct 15 - Sun, Oct 19
MSS
Massena
STL
St. Louis
$482 Roundtrip, found 1 day ago
$482
Roundtrip
found 1 day ago
Select Boutique Air flight, departing Wed, Oct 15 from Massena to St. Louis, returning Sun, Oct 19, priced at $482 found 1 day ago
Boutique Air
Wed, Oct 15 - Sat, Oct 25
MSS
Massena
STL
St. Louis
$484 Roundtrip, found 5 days ago
$484
Roundtrip
found 5 days ago
Select Boutique Air flight, departing Wed, Oct 15 from Massena to St. Louis, returning Sat, Oct 25, priced at $484 found 5 days ago
Boutique Air
Thu, Oct 16 - Sat, Oct 18
MSS
Massena
STL
St. Louis
$499 Roundtrip, found 5 days ago
$499
Roundtrip
found 5 days ago
Select Boutique Air flight, departing Thu, Oct 16 from Massena to St. Louis, returning Sat, Oct 18, priced at $499 found 5 days ago
Boutique Air
Wed, Oct 15 - Sun, Oct 19
MSS
Massena
STL
St. Louis
$507 Roundtrip, found 1 day ago
$507
Roundtrip
found 1 day ago
Select Boutique Air flight, departing Wed, Oct 15 from Massena to St. Louis, returning Sun, Oct 19, priced at $507 found 1 day ago
Boutique Air
Tue, Sep 16 - Tue, Sep 23
MSS
Massena
STL
St. Louis
$513 Roundtrip, found 4 days ago
$513
Roundtrip
found 4 days ago
Select Boutique Air flight, departing Tue, Sep 16 from Massena to St. Louis, returning Tue, Sep 23, priced at $513 found 4 days ago
Boutique Air
Wed, Oct 15 - Wed, Oct 22
MSS
Massena
STL
St. Louis
$516 Roundtrip, found 1 day ago
$516
Roundtrip
found 1 day ago
Select Boutique Air flight, departing Wed, Oct 15 from Massena to St. Louis, returning Wed, Oct 22, priced at $516 found 1 day ago
Boutique Air
Thu, Oct 16 - Sat, Oct 18
MSS
Massena
STL
St. Louis
$521 Roundtrip, found 5 days ago
$521
Roundtrip
found 5 days ago
Select Boutique Air flight, departing Thu, Oct 16 from Massena to St. Louis, returning Sat, Oct 18, priced at $521 found 5 days ago
Boutique Air
Wed, Oct 15 - Sat, Oct 18
MSS
Massena
STL
St. Louis
$524 Roundtrip, found 2 days ago
$524
Roundtrip
found 2 days ago
Select Boutique Air flight, departing Wed, Oct 15 from Massena to St. Louis, returning Sat, Oct 18, priced at $524 found 2 days ago
Boutique Air
Tue, Sep 16 - Mon, Sep 22
MSS
Massena
STL
St. Louis
$531 Roundtrip, found 4 days ago
$531
Roundtrip
found 4 days ago
Select Boutique Air flight, departing Tue, Sep 16 from Massena to St. Louis, returning Mon, Sep 22, priced at $531 found 4 days ago
Flights from Massena (MSS) to St. Louis (STL)
Origin airport
Massena Intl.
Destination airport
Lambert-St. Louis Intl.
Roundtrip price
$466
Distance
904 mi

Massena to St. Louis Flights

The cheapest times to fly from Massena to St. Louis

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Massena to St. Louis are during the month of October. You can find some of the cheapest flights from Massena to St. Louis with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Massena to St. Louis

Sunday is one of the best days to book for cheap flights from Massena to St. Louis: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Massena to St. Louis

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Massena to St. Louis in 2025. You can also book with separate airlines for your outbound and return journeys, from $310 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Massena to St. Louis flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Massena to St. Louis airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Massena Intl. Airport (MSS) to Lambert-St. Louis Intl. Airport (STL) cost?
Get a cheap one-way flight from $310 or cheap return flight from $466 from Massena Intl. Airport (MSS) to Lambert-St. Louis Intl. Airport (STL) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Massena Intl. Airport (MSS) to Lambert-St. Louis Intl. Airport (STL)?
October is the most affordable month to fly from MSS to STL. Planning your trip for the off-season is often the key to landing a great deal.
What is the cheapest airline that flies from Massena Intl. Airport (MSS) to Lambert-St. Louis Intl. Airport (STL)?
To find the cheapest airline flying from MSS to STL, use Expedia's filter tool. Tailor your search based on what matters most to you, such as preferred carriers and ideal departure window. You can then sort your results by "Price (lowest to highest)" to see the cheapest flights first.
How many flights per day from Massena Intl. Airport (MSS) to Lambert-St. Louis Intl. Airport (STL)?
There are no daily direct flights departing from Massena Intl. Airport (MSS) to Lambert-St. Louis Intl. Airport (STL). But you can book flights with layovers. Filter your search results on Expedia to include one or two stops, and you'll be soaring above the clouds before you know it.
What day of the week has the most flights from MSS to STL?
Generally you'll find the largest variety of flight choices on a Friday. Tuesdays tend to be the quietest.* However, this can change based on the season, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Massena Intl. Airport (MSS) to Lambert-St. Louis Intl. Airport (STL)?
To avoid potential delays on the Massena Intl. Airport (MSS) to Lambert-St. Louis Intl. Airport (STL) route, travel before 3 PM. Departures after this time have a 22% higher chance of cancellation.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Massena Intl. Airport (MSS) to Lambert-St. Louis Intl. Airport (STL) last-minute?
Booking your flight from MSS to STL shortly before your journey is generally more expensive. But if you're flexible with your departure dates and times, you could grab a cheap last-minute fare.
Is it cheaper to book a MSS to STL flight and hotel package?
Booking a MSS to STL flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Pick from our extensive range of stays and then add activities, flights and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Massena Intl. Airport (MSS) to Lambert-St. Louis Intl. Airport (STL)?
It's generally possible to reschedule or cancel your MSS to STL flight. However, if the booking was made more than 24 hours ago, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find further details on our Customer Service portal.

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*Available to One Key members.