$750 Cheap Flights from St. Louis (STL) to Salta (SLA)

View $750 flight on Mon, Feb 2, 2026Opens in a new window

Popular airlines from St. Louis Lambert Intl. Airport (STL) to Salta (SLA-Martín Miguel de Güemes Intl.)

Cheap Flights from St. Louis to Salta (STL-SLA)

Prices were available within the past 7 days and start at $750 for one-way flights and $1,024 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Thu, Feb 5 - Thu, Feb 19
STL
St. Louis
SLA
Salta
$1,024 Roundtrip, found 2 days ago
$1,024
Roundtrip
found 2 days ago
Select United flight, departing Thu, Feb 5 from St. Louis to Salta, returning Thu, Feb 19, priced at $1,024 found 2 days ago
United
Thu, Feb 5 - Wed, Feb 18
STL
St. Louis
SLA
Salta
$1,033 Roundtrip, found 2 days ago
$1,033
Roundtrip
found 2 days ago
Select United flight, departing Thu, Feb 5 from St. Louis to Salta, returning Wed, Feb 18, priced at $1,033 found 2 days ago
United
Mon, Feb 2 - Wed, Feb 18
STL
St. Louis
SLA
Salta
$1,044 Roundtrip, found 1 day ago
$1,044
Roundtrip
found 1 day ago
Select United flight, departing Mon, Feb 2 from St. Louis to Salta, returning Wed, Feb 18, priced at $1,044 found 1 day ago
United
Mon, Feb 2 - Wed, Feb 18
STL
St. Louis
SLA
Salta
$1,054 Roundtrip, found 1 day ago
$1,054
Roundtrip
found 1 day ago
Select United flight, departing Mon, Feb 2 from St. Louis to Salta, returning Wed, Feb 18, priced at $1,054 found 1 day ago
United
Mon, Feb 2 - Wed, Feb 18
STL
St. Louis
SLA
Salta
$1,054 Roundtrip, found 1 day ago
$1,054
Roundtrip
found 1 day ago
Select United flight, departing Mon, Feb 2 from St. Louis to Salta, returning Wed, Feb 18, priced at $1,054 found 1 day ago
LATAM Airlines Group
Tue, Oct 28 - Tue, Nov 4
STL
St. Louis
SLA
Salta
$1,060 Roundtrip, found 1 day ago
$1,060
Roundtrip
found 1 day ago
Select LATAM Airlines Group flight, departing Tue, Oct 28 from St. Louis to Salta, returning Tue, Nov 4, priced at $1,060 found 1 day ago
United
Mon, Feb 2 - Wed, Feb 18
STL
St. Louis
SLA
Salta
$1,063 Roundtrip, found 1 day ago
$1,063
Roundtrip
found 1 day ago
Select United flight, departing Mon, Feb 2 from St. Louis to Salta, returning Wed, Feb 18, priced at $1,063 found 1 day ago
LATAM Airlines Group
Tue, Oct 28 - Tue, Nov 4
STL
St. Louis
SLA
Salta
$1,068 Roundtrip, found 1 day ago
$1,068
Roundtrip
found 1 day ago
Select LATAM Airlines Group flight, departing Tue, Oct 28 from St. Louis to Salta, returning Tue, Nov 4, priced at $1,068 found 1 day ago
Delta
Tue, Jan 20 - Tue, Feb 3
STL
St. Louis
SLA
Salta
$1,225 Roundtrip, found 2 days ago
$1,225
Roundtrip
found 2 days ago
Select Delta flight, departing Tue, Jan 20 from St. Louis to Salta, returning Tue, Feb 3, priced at $1,225 found 2 days ago
Copa
Mon, Feb 2 - Wed, Feb 18
STL
St. Louis
SLA
Salta
$2,464 Roundtrip, found 1 day ago
$2,464
Roundtrip
found 1 day ago
Select Copa flight, departing Mon, Feb 2 from St. Louis to Salta, returning Wed, Feb 18, priced at $2,464 found 1 day ago

Alternative airports near Salta

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Martin Miguel de Guemes Intl. SLA. Cheapest and Closest option available. Average driving time to city center is 10 minutes. Flights from $1,060
SLA
Martin Miguel de Guemes Intl.
CheapestClosest
Average driving time to city center10 min
Flights from $1,060

Frequently asked questions

How much does a flight from Lambert-St. Louis Intl. Airport (STL) to Martin Miguel de Guemes Intl. Airport (SLA) cost?
Lock in a cheap one-way flight from $750 or cheap return flight from $1,024 from Lambert-St. Louis Intl. Airport (STL) to Martin Miguel de Guemes Intl. Airport (SLA) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Lambert-St. Louis Intl. Airport (STL) to Martin Miguel de Guemes Intl. Airport (SLA)?
February is the most affordable month to fly from STL to SLA. Planning your trip for the off-season is often the key to scoring lower fares.
What is the cheapest airline that flies from Lambert-St. Louis Intl. Airport (STL) to Martin Miguel de Guemes Intl. Airport (SLA)?
Expedia's filter tool lets you easily compare travel time, airlines and fares all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest STL to SLA flight.
How many flights per day from Lambert-St. Louis Intl. Airport (STL) to Martin Miguel de Guemes Intl. Airport (SLA)?
You'll have to hop on a flight with a layover when traveling from Lambert-St. Louis Intl. Airport (STL) to Martin Miguel de Guemes Intl. Airport (SLA). Direct flights don't operate daily on this route. However, just filter your search to include one or more stops to discover the best option for your trip.
What day of the week has the most flights from STL to SLA?
You'll usually find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can vary from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Lambert-St. Louis Intl. Airport (STL) to Martin Miguel de Guemes Intl. Airport (SLA)?
To arrive at Martin Miguel de Guemes Intl. Airport (SLA) on schedule, choose a flight that leaves Lambert-St. Louis Intl. Airport (STL) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**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 Lambert-St. Louis Intl. Airport (STL) to Martin Miguel de Guemes Intl. Airport (SLA) last-minute?
Booking your plane ticket from STL to SLA just before your getaway is generally more expensive. But if you're flexible with your itinerary, you could grab a cheap last-minute fare.
Is it cheaper to book a STL to SLA flight and hotel package?
You'll generally save money by securing a STL to SLA flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage it all in one place. After choosing your ideal accommodations and flights, you can add extras like tours, car rentals and activities.
Can I cancel or change the date of my flight from Lambert-St. Louis Intl. Airport (STL) to Martin Miguel de Guemes Intl. Airport (SLA)?
Typically, you're able to reschedule or cancel your STL to SLA flight. However, additional fees may apply, especially if you made your booking more than 24 hours ago. Double-check your itinerary for the airline's fees and guidelines on flight changes, or if you'd like more information, head to our Customer Service portal.

Travel information

Origin airport
Lambert-St. Louis Intl.
Destination airport
Martín Miguel de Güemes Intl.
Roundtrip price
$1,023
Distance
4678 mi

Book with confidence

St. Louis to Salta Flights

The cheapest times to fly from St. Louis to Salta

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 St. Louis to Salta are during the month of February. You can find some of the cheapest flights from St. Louis to Salta with Expedia's search tool and vast selection of airlines.

 

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

Sunday is one of the best days to book for cheap flights from St. Louis to Salta: 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 St. Louis to Salta

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 St. Louis to Salta in 2025. You can also book with separate airlines for your outbound and return journeys, from $750 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 St. Louis to Salta 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 St. Louis to Salta 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.

 

St. Louis to Salta Flights

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*Available to One Key members.