Business class flights from Chicago (MDW) to Buenos Aires (EZE) start from $1,965 round-trip — up to 40% below published airline prices. The ~10.2 hours journey covers 5,608 miles, with 3 airlines offering lie-flat seats on this route. Best time to book: 3–6 months in advance for best fares.
MDW → EZE
Chicago to Buenos Aires Business Class
From$1,965
Route Overview
Starting From
$1,965 round-trip
Flight Duration
~10.2 hours
Distance
5,608 miles
Airlines
3 carriers
Best Value
Jan, Feb, Mar
Savings
Up to 60% off retail
Route Intelligence
Business Class from Chicago to Buenos Aires
Buenos Aires rewards travelers who come for more than a quick stopover. The city runs on European-style rhythms — late dinners, tango halls that don't fill up until midnight, and a café culture built around lingering rather than rushing. Palermo's tree-lined streets hold some of South America's best restaurants, Recoleta's cemetery and belle-époque architecture give the city an old-world weight, and the parrillas serving Argentine beef are worth the trip on their own. Because Buenos Aires sits at the bottom of the globe, it's also a natural base for side trips to Iguazú Falls, Patagonia, or the wine country around Mendoza, so many travelers build in extra days once they've made the long flight south.
Airlines & Cabin Experience
That flight is genuinely long. Chicago to Buenos Aires business class runs about 10.2 hours in the air and covers 5,608 miles, but since Chicago Midway doesn't handle international widebodies, every itinerary connects — typically through Atlanta or Minneapolis on Delta, or through Houston or Chicago O'Hare on United. That connection isn't a drawback so much as a chance to use lounge access twice and break up the journey with a shorter domestic leg before the overnight haul south.
Pricing & Best Time to Fly
Delta and United are the two carriers worth considering, and both put real hardware on this route. Delta flies its Delta One Suite: a fully enclosed pod with a closing door, 1-2-1 configuration so every seat has direct aisle access, Tumi amenity kits, and a level of privacy that makes the ten-hour overnight leg feel shorter than it is. United counters with Polaris — a lie-flat pod in the same 1-2-1 layout, Saks Fifth Avenue bedding, and access to United's Polaris lounges at the connecting hub, which are some of the better business lounges in the U.S. network. Both are strong choices; Delta edges it slightly for privacy-focused travelers, United for those who value the lounge experience pre-departure.
Why Book Through BestBusinessClass.com
Seasonality matters more than people expect on this route. January through March lines up with Argentine summer — warm, dry, and peak season for a reason, though fares and crowds both run higher. October through December is the shoulder window many seasoned travelers prefer: comfortable weather, blooming jacaranda trees around the city, and slightly easier pricing than peak summer. Outside those windows, Buenos Aires winters (June–August) are cool and gray, which is why demand and fares both soften.
Travel Tips
On pricing, our Chicago to Buenos Aires business class fares run $1,965 to $4,465 round-trip, and where you land in that range depends heavily on how far ahead you book and how flexible your dates are. Because these are consolidator fares — wholesale rates negotiated directly with the airlines rather than published retail prices — the same Delta One Suite or Polaris seat that lists for $6,000+ on the airline's own site can come in dramatically lower through us. Booking 2–3 months ahead of peak season (January–March or the October–December shoulder) gives our Travel Managers the most room to find the lowest available fare class, though last-minute availability does open up when airlines release unsold premium inventory closer to departure.
Airline Comparison
Southwest Airlines
Business Select
Standard seat with priority
Open seating, no baggage fees
Delta Air Lines
Delta One Suite
Suite with closing door, 1-2-1
Delta One Suite privacy, Tumi amenity kit
Read Full Review →
United Airlines
United Polaris
Lie-flat pod, 1-2-1
Polaris lounge access, Saks Fifth Avenue bedding
Read Full Review →Top Rated
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The Business Class Standard
Lie-Flat Guarantee
We only sell true Business Class. 180° fully flat beds on all long-haul routes, ensuring you arrive rested.
Premium Lounges
Access the world's finest lounges. Enjoy pre-flight dining, showers, and quiet workspaces before you board.
Priority Service
Skip the queues. Your ticket includes fast-track security, priority boarding, and premium baggage handling.
The Business Class Standard
Lie-Flat Guarantee
We only sell true Business Class. 180° fully flat beds on all long-haul routes, ensuring you arrive rested.
Premium Lounges
Access the world's finest lounges. Enjoy pre-flight dining, showers, and quiet workspaces before you board.
Priority Service
Skip the queues. Your ticket includes fast-track security, priority boarding, and premium baggage handling.
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