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Cheap Flights to San Martín Department from $123

View $123 flight on Wed, Jul 15, 2026Opens in a new window

Popular airlines to San Martín Department

  • Aerolineas Argentinas

How much is the cheapest flight to San Martín Department?

Prices were available within the past 7 days and start at $123 for one-way flights and $248 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Aerolineas Argentinas
Fri, Aug 21 - Mon, Aug 24
AEP
Buenos Aires
SDE
Santiago del Estero
$248 Roundtrip, found 3 hours ago
$248
Roundtrip
found 3 hours ago
Select Aerolineas Argentinas flight, departing Fri, Aug 21 from Buenos Aires to Santiago del Estero, returning Mon, Aug 24, priced at $248 found 3 hours ago
Aerolineas Argentinas
Sat, Jul 4 - Thu, Jul 16
AEP
Buenos Aires
SDE
Santiago del Estero
$260 Roundtrip, found 1 day ago
$260
Roundtrip
found 1 day ago
Select Aerolineas Argentinas flight, departing Sat, Jul 4 from Buenos Aires to Santiago del Estero, returning Thu, Jul 16, priced at $260 found 1 day ago
Aerolineas Argentinas
Sat, Jul 4 - Thu, Jul 16
AEP
Buenos Aires
SDE
Santiago del Estero
$272 Roundtrip, found 1 day ago
$272
Roundtrip
found 1 day ago
Select Aerolineas Argentinas flight, departing Sat, Jul 4 from Buenos Aires to Santiago del Estero, returning Thu, Jul 16, priced at $272 found 1 day ago
Aerolineas Argentinas
Sun, Aug 2 - Sat, Aug 15
AEP
Buenos Aires
SDE
Santiago del Estero
$274 Roundtrip, found 6 days ago
$274
Roundtrip
found 6 days ago
Select Aerolineas Argentinas flight, departing Sun, Aug 2 from Buenos Aires to Santiago del Estero, returning Sat, Aug 15, priced at $274 found 6 days ago
Aerolineas Argentinas
Fri, Aug 21 - Mon, Aug 24
AEP
Buenos Aires
SDE
Santiago del Estero
$276 Roundtrip, found 3 hours ago
$276
Roundtrip
found 3 hours ago
Select Aerolineas Argentinas flight, departing Fri, Aug 21 from Buenos Aires to Santiago del Estero, returning Mon, Aug 24, priced at $276 found 3 hours ago
Aerolineas Argentinas
Wed, Dec 9 - Sun, Dec 13
AEP
Buenos Aires
SDE
Santiago del Estero
$278 Roundtrip, found 2 days ago
$278
Roundtrip
found 2 days ago
Select Aerolineas Argentinas flight, departing Wed, Dec 9 from Buenos Aires to Santiago del Estero, returning Sun, Dec 13, priced at $278 found 2 days ago
Aerolineas Argentinas
Sat, Jul 4 - Mon, Jul 6
AEP
Buenos Aires
SDE
Santiago del Estero
$288 Roundtrip, found 4 hours ago
$288
Roundtrip
found 4 hours ago
Select Aerolineas Argentinas flight, departing Sat, Jul 4 from Buenos Aires to Santiago del Estero, returning Mon, Jul 6, priced at $288 found 4 hours ago
Aerolineas Argentinas
Sat, Jul 4 - Thu, Jul 16
AEP
Buenos Aires
SDE
Santiago del Estero
$290 Roundtrip, found 1 day ago
$290
Roundtrip
found 1 day ago
Select Aerolineas Argentinas flight, departing Sat, Jul 4 from Buenos Aires to Santiago del Estero, returning Thu, Jul 16, priced at $290 found 1 day ago
Aerolineas Argentinas
Sat, Jul 4 - Thu, Jul 16
AEP
Buenos Aires
SDE
Santiago del Estero
$292 Roundtrip, found 6 days ago
$292
Roundtrip
found 6 days ago
Select Aerolineas Argentinas flight, departing Sat, Jul 4 from Buenos Aires to Santiago del Estero, returning Thu, Jul 16, priced at $292 found 6 days ago
avianca
Wed, Sep 23 - Mon, Sep 28
UIO
Quito
SDE
Santiago del Estero
$823 Roundtrip, found 11 hours ago
$823
Roundtrip
found 11 hours ago
Select avianca flight, departing Wed, Sep 23 from Quito to Santiago del Estero, returning Mon, Sep 28, priced at $823 found 11 hours ago

Frequently asked questions

How do I find cheap flights to San Martín Department that have flexible change policies?
By using our convenient "No change fee" filter, that's how. Just type in your dates and other details, click the "Search" button, then mark the checkbox directly below the "Flexible change policies" subheading (to the left). Expedia makes it a cinch to find affordable, flexible tickets to San Martín Department.
How can I find cheap tickets to San Martín Department?
To score an amazing deal to San Martín Department, book well ahead of time. Also think about using Expedia's "flexible dates" feature above your search results. This will show you the cheapest prices for nearby days. In the last seven days, $248 was the best price for a flight to San Martín Department.
How much is a flight to San Martín Department?
One-way flights taking off from Buenos Aires (AEP) sold for just $123 in the last seven days. During this period, the cost of a return journey to San Martín Department varied between $248 and $823. If you spot a deal, book immediately — these prices don't hang around.
When is the cheapest time to fly to San Martín Department?
If you'd prefer to spend your hard-earned vacation dollars exploring the delights of San Martín Department rather than on your flight there, take off early in the week. The most economical day to fly is generally Tuesday, with Monday coming in second. With many folks traveling on weekends, Saturday often has the highest airfares.
How much is a plane ticket to San Martín Department?
In the last seven days, fares to San Martín Department ranged between $248 and $823. Prices rise as your travel date nears, so snap up a great deal today.
What months are the cheapest to book a flight to San Martín Department?
February is an excellent month to get your hands on an awesome deal to San Martín Department. Bear in mind that the most expensive time to purchase tickets in the USA isn't during the peak of summer, but in December.

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Travel information

*Flight schedules are subject to change.

*Available to One Key members.

 

*Flight schedules are subject to change.

*Available to One Key members.