Business Class to Buenos Aires

Flying United Airlines to Buenos Aires from the US

United Airlines business class to Buenos Aires starts at $1,863 round-trip through BestBusinessClass.com's consolidator fares, roughly 40% below the $3,100+ retail average for this South American route. The Polaris cabin flies on United's widebody 787-9 and 777-200 aircraft that connect Newark (EWR) to Buenos Aires (EZE) nonstop, with additional one-stop options through Houston (IAH) for travelers departing from the central US.

United Polaris uses a 1-2-1 configuration, meaning every seat has direct aisle access — a real advantage over older 2-3-2 layouts still flying on some competitor long-haul aircraft. The lie-flat pod extends to a fully horizontal bed with a plush mattress topper, and United dresses the bed in Saks Fifth Avenue linens, a detail that actually matters on the roughly 10-hour overnight flight from EWR to EZE. Polaris also includes a multi-course dinner service with a proper amenity kit, noise-canceling headsets, and access to the Polaris Lounge at Newark before departure — a standalone lounge with a la carte dining and shower suites that beats most domestic business lounges by a wide margin.

EWR is the primary Star Alliance gateway for this route, with Chicago O'Hare (ORD) serving as the connecting hub for passengers originating from the Midwest or feeding in from United's broader network. Travelers from Houston, New York, San Juan, and even Pacific gateways like Maui, Kona, and Lihue can route through EWR or ORD to reach Buenos Aires, giving United one of the widest US-origin footprints among carriers serving Argentina — 33 total route combinations by our count.

Pricing on United Airlines business class to Buenos Aires ranges from $1,863 to $5,479 round-trip depending on season and how far in advance you book. The cheapest fares typically appear during Argentina's shoulder seasons — March through May and September through November — when demand dips between the North American summer peak and the December-January Argentine summer rush. Booking 60-90 days out through a consolidator fare desk consistently beats last-minute retail pricing, sometimes by $1,000 or more round-trip.

American Airlines also flies business class to Buenos Aires, mainly via Miami, with a Flagship Business product that's comparable in seat comfort but runs through a Latin America-focused hub rather than United's Star Alliance network. The practical difference for most travelers is routing flexibility: United's EWR and ORD hubs work better if you're connecting from the Midwest, mountain states, or need MileagePlus or other Star Alliance award options, while American's Miami hub suits travelers already based in the Southeast. On pure fare price, our data shows United's consolidator rates undercutting American's published Flagship Business fares by 15-25% on comparable dates.

Booking through BestBusinessClass.com gets you access to these wholesale rates directly — fares not listed on Expedia or Google Flights — plus a Personal Travel Manager who handles seat selection, fare rules, and any schedule changes. Call (855) 815-4774 to check live availability on United Polaris to Buenos Aires before the shoulder-season fares disappear.