It takes two to tango and dance partners American and United keep one-upping each other's moves with this fare war attacking respective hubs on tickets to Argentina and Brazil. These unadvertised sale fares to Buenos Aires keep coming and going, so hurry up and book one of these crazy low fares starting at just $537 RT before there's another pause in the music.

Not to be left out sitting like baby in a corner, Copa has dropped fares from Florida as low as $540 roundtrip, so check out all these cheap flights to Buenos Aires (EZE) and Sao Paulo (GRU).

The good news is that these unadvertised sale fares are still regular Main Cabin Economy fares and include checked bags. But I would recommend booking these now because future sales will likely be Basic Economy for the lowest fares as both American and Delta have Basic Economy bag fees listed on the baggage information sections of their websites.

Related: 7 Cheap Places to Visit in 2020

Travel Availability

  • Travel Period: May through December.
  • Travel Days of the Week: Mostly Mondays, Tuesdays, Wednesdays, and Thursdays; Certain routes may have other scattered days/week available.
  • Minimum Stay: The lowest fares may require a 3-night minimum stay.
  • Blackout Dates: No inbound travel in July.

A few of the routes from Florida may have some availability for winter and early spring travel. Since availability varies quite a bit depending on the route, make sure to click on the fare details below for more booking info.

Sale Period

This sale is unadvertised, and fares may jump at any moment. Secure your low fare by booking now and taking advantage of a 24-hour risk-free cancellation policy to think about your plans.

Sample Fares

Cheap Flights to Buenos Aires (EZE)

Charlotte to Buenos Aires $537 roundtrip

New York-LGA to Buenos Aires $539 roundtrip

Dallas-DFW to Buenos Aires $539 roundtrip

Philadelphia to Buenos Aires $539 roundtrip

Phoenix to Buenos Aires $539 roundtrip

Denver to Buenos Aires $539 roundtrip

Washington DC-IAD to Buenos Aires $539 roundtrip

Washington DC-DCA to Buenos Aires $539 roundtrip

Houston-IAH to Buenos Aires $539 roundtrip

Houston-HOU to Buenos Aires $539 roundtrip

San Francisco to Buenos Aires $539 roundtrip

Miami to Buenos Aires $539 roundtrip

Tampa to Buenos Aires $540 roundtrip

Orlando to Buenos Aires $540 roundtrip

Los Angeles to Buenos Aires $639 roundtrip

Baltimore to Buenos Aires $729 roundtrip

Cheap Flights to Sao Paulo (GRU)

Houston-IAH to Sao Paulo $652 roundtrip

Boston to Sao Paulo $665 roundtrip

Charlotte to Sao Paulo $684 roundtrip

Dallas-DFW to Sao Paulo $685 roundtrip

Philadelphia to Sao Paulo $685 roundtrip

Phoenix to Sao Paulo $685 roundtrip


These are Main Cabin fares on American, United, and Copa, which include one free checked bag and standard carry-on allowances.

Seat Selection

Standard advanced seat selection is included with all fares. You may pay a fee to choose preferred seating with more legroom or at the front of the aircraft.

Alternate Fares

These are still regular Main Cabin Economy fares, but it's only a matter of time before Basic Economy will be more widespread to this region. Book these fares now and enjoy advanced seat assignments and free checked bags.

Related: How to Save on Flights within South America

Example Booking

As an example, I found seats departing Houston IAH on Monday, October 12, returning from Buenos Aires EZE on Tuesday, October 27, 2020, for $539 roundtrip.

Stay on top of breaking sales, fare drops, and more! Follow us on Twitter @Airfarewatchdog. And make sure to sign up for FREE airfare alerts to be notified when prices drop.

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