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Cheap Flights from Miami to Buenos Aires: The Complete Savings Guide

Planning the long hop from South Florida to Argentina? Search and book your Miami–Buenos Aires flight with TopTravelCentre and compare every airline in seconds. If you are hunting for cheap flights from Miami to Buenos Aires, you are on one of the main gateways between the United States and the Southern Cone: a daily nonstop route flown by three airlines, where careful timing makes a big difference to the price.

💡 Ready to fly? Compare Miami–Buenos Aires fares here and book the best price in seconds.

Miami–Buenos Aires route at a glance

Fact	Detail
Direct flight time	~9 hours
Distance	~7,100 km (about 4,410 miles)
Origin airport	Miami International (MIA)
Destination airport	Ministro Pistarini / Ezeiza (EZE)
Direct airlines	American, Aerolíneas Argentinas, LATAM
Daily departures	Multiple each way, every day
Cheapest months	May–June and September–November
Cheapest days	Tuesday and Wednesday

How long is the flight from Miami to Buenos Aires?

A direct flight from Miami to Buenos Aires takes about 9 hours gate to gate, give or take 30 minutes depending on winds and the carrier. It is an overnight southbound journey: most departures leave Miami in the evening and land at Ezeiza the next morning. Because three airlines run nonstops on the route, there is rarely a good reason to connect — a layover only adds hours and the risk of a missed connection.

A practical note for your first day: Buenos Aires runs on Argentina time, and most travellers also want to push straight through to dinner given the city’s famously late eating hours. Build in a little rest, but the overnight flight does a lot of the timezone adjustment for you.

See every airline and time in one view: compare Miami–Buenos Aires flights on TopTravelCentre in seconds.

Which airlines fly the route (and which are cheapest)

• American Airlines — the dominant carrier on the route, with daily nonstops from its Miami hub flown on widebody aircraft (Boeing 777 and 787). A dependable full-service option and the schedule backbone.
• Aerolíneas Argentinas — Argentina’s flag carrier flies the route nonstop year-round, daily, on Airbus A330s. A common misconception is that only US airlines serve Miami–Buenos Aires; Aerolíneas Argentinas is a core operator here, and its fares are often competitive.
• LATAM — flies nonstop daily with a full-service product on the 787. A strong third option that keeps the other two sharp on price.

One thing worth knowing: if a “Delta” flight number shows up on this route, it is normally a codeshare flown on Aerolíneas Argentinas metal, not a Delta-operated aircraft. The three carriers above are the ones actually flying the planes.

Because three full-service airlines compete on a long, high-demand corridor, fares move with the seasons. Before you commit, compare every Miami–Buenos Aires flight at once on TopTravelCentre to see instantly which airline is cheapest for your exact date.

Airports: Miami International (MIA) and Ezeiza (EZE)

Miami International (MIA)

The main gateway between the US and Latin America, MIA is American Airlines’ primary hub for the region. It is large and busy, so arrive early — security and immigration lines can be long, especially on weekend mornings when South America departures cluster. The free MIA Mover connects the terminal to the Metrorail and rental car center for an easy ride into the city. Aerolíneas Argentinas and LATAM also operate out of MIA, so your carrier choice rarely changes which concourse you use.

Ministro Pistarini International (EZE)

Known simply as Ezeiza, EZE is Buenos Aires’ long-haul international airport, located about 30–45 minutes southwest of the city center. (The closer Aeroparque, AEP, handles domestic and regional flights only — no US long-haul lands there.) Taxis and ride-hailing apps connect Ezeiza to the city; the official Tienda León and Taxi Ezeiza booths inside arrivals are the safe choice. Traffic into central Buenos Aires can be heavy at rush hour, so allow a buffer on the return.

When is the cheapest time to fly Miami–Buenos Aires?

• May–June and September–November — the cheapest months. These are the Argentine autumn and spring shoulders, when demand softens and the airlines discount hardest.
• Tuesday and Wednesday — usually the cheapest days of the week to fly on a long-haul route.
• When to avoid on price: mid-December through January (summer holidays and the festive season in Argentina), and the July Northern-hemisphere school break, when fares climb. Easter week is also busy.

If you’re weighing Buenos Aires against other Miami international routes, our Miami to São Paulo guide covers the other main Southern Cone option, and if you’d rather fly from New York, see our New York to Buenos Aires guide. If your trip continues onward from Argentina to Europe, our Buenos Aires to Madrid guide covers that leg, and for a shorter South Florida hop our Miami to Bogotá guide is a useful reference.

6 real tactics to get the cheapest flight

1. Fly Tuesday or Wednesday. Consistently the cheapest days on a long-haul corridor like this.
2. Target May–June or September–November. Shoulder seasons in Argentina, when demand dips and discounts are deepest.
3. Book 4–8 weeks ahead. Long-haul is different from short hops — you want enough lead time to catch a sale without paying last-minute premiums.
4. Compare all three carriers every time. American, Aerolíneas Argentinas and LATAM rotate who is cheapest — assume nothing and check all of them.
5. Watch the Argentine summer. Fares spike from mid-December through January; shifting a week earlier or later can save a lot.
6. Compare in one place. Our complete guide to finding cheap flights has more long-haul tactics, or just compare Miami–Buenos Aires fares now.

How much does a Miami–Buenos Aires flight cost? (price ranges)

Checked on 09/08/2026. Booked several weeks ahead on a midweek date in low season, a round-trip Miami–Buenos Aires ticket typically starts from about 650–900 USD on the full-service carriers, with peak-season or last-minute fares often climbing to 1,200–1,800 USD or more. One-way low-season fares frequently land between 350–550 USD. These are ranges, not guaranteed prices — always check the live fare for your date.

👉 Check the live price for your date on TopTravelCentre — MIA → EZE, best price in seconds.

Frequently asked questions

Are there direct flights from Miami to Buenos Aires?

Yes — the route is flown directly by American Airlines, Aerolíneas Argentinas and LATAM, with daily departures. The flight takes about 9 hours.

Which airline is cheapest?

It changes by date, but all three compete. LATAM and Aerolíneas Argentinas frequently undercut American outside peak dates, though American matches during sales. Compare all three for your exact date.

How long is the flight?

About 9 hours gate to gate. There is little reason to connect on a route with this many nonstops.

Do I need a visa for Argentina?

US citizens do not need a visa for tourist stays up to 90 days, and Argentina’s reciprocity fee for US citizens was suspended in 2016 and remains suspended. A valid passport (with at least six months validity) is enough.

What is the cheapest month to fly?

May–June and September–November — the Argentine shoulder seasons. Avoid mid-December through January.

Which Buenos Aires airport will I land at?

Ezeiza (EZE), about 30–45 minutes southwest of central Buenos Aires. The closer Aeroparque (AEP) handles domestic and regional flights only.

Summary: your plan for the cheapest Miami–Buenos Aires flight

Fly Tuesday or Wednesday in May–June or September–November, book 4–8 weeks ahead, and compare American, Aerolíneas Argentinas and LATAM every time. Land at Ezeiza, head straight into Buenos Aires, and you’re set. Search and book your Miami–Buenos Aires flight now with TopTravelCentre.