MIA → EZE
Miami International
Typical low
$650
Best months: Apr–May, Sep
The US gateway for South America — always cheapest from Miami.
Cheap flights to Buenos Aires.
2 US gateways tracked, from $650 round-trip. Live metasearch pricing via Aviasales (Expedia, Trip.com, Kiwi, Booking, Priceline — all in one click).
— US gateways, cheapest first
Where to fly from.
"Typical low" is the round-trip price floor we've actually tracked on each route — not the average, and not a promo. Click through for live fares.
IAH → EZE
Houston Bush
Typical low
$780
Best months: Apr–May, Sep–Oct
United direct and Copa via PTY — shoulder seasons best.
While you're here
Plan the rest of Buenos Aires.
— FAQ
Flying to Buenos Aires.
- How much does a flight to Buenos Aires cost?
- Typical-low round-trip fares to Buenos Aires start at $650 from Miami International — that's the floor we've tracked, not the average. Most transatlantic US gateways land in the $650–$780 range in shoulder season. Live metasearch prices update when you click any "Search flights" button on this page.
- Which US airport has the cheapest flights to Buenos Aires?
- From our tracked routes, Miami International (MIA) has the cheapest anchor fare at $650. The US gateway for South America — always cheapest from Miami.
- When is the best time to fly to Buenos Aires for cheap fares?
- Shoulder-season windows for Buenos Aires vary by gateway — the route table above lists each one. Broadly, late autumn (Oct–Nov) and deep winter (Jan–Feb) are the most reliable cheap windows for long-haul fares; summer peaks push prices 40–60% higher.
- Are flights to Buenos Aires direct or do I need connections?
- It depends on the origin — hubs like JFK, ORD, LAX, and EWR have direct long-haul service to most big destinations; smaller airports usually connect through those hubs. Aviasales (where every CTA on this page routes) shows direct-only filters and connection counts on the results page.
- How do the prices on this page compare to Google Flights?
- The "typical low" anchors here come from our editor's historical tracking, not real-time scraping. The CTAs route to Aviasales metasearch, which pulls live fares from Expedia, Trip.com, Kiwi, Booking, Priceline, and the airlines directly — usually matching or beating Google Flights on the same routes.