ORD → EZE
Compare one-way, round-trip and flight + hotel packages from Chicago to Buenos Aires, a nonstop flight of about 11h 50m, with fares from around 590.
Chicago to Buenos Aires is an international route covering about 5,619 miles, arriving at Ministro Pistarini International Airport (EZE) in Argentina. Peak travel season in Buenos Aires runs September–November & March–May (mild and pleasant), while June–August is usually the quietest and best-value time to visit. The cheapest fares we've tracked on this route include at least one stop.
| Departing from | O'Hare International Airport (ORD) |
|---|---|
| Arriving at | Ministro Pistarini International Airport (EZE) |
| Distance | 5,619 miles (9,049 km) |
| Nonstop flight time | About 11h 50m |
| Nonstop airlines seen | None in recent fares, expect 1 stop |
| Round-trip fares from | $590 (estimate) |
| Cheapest months | September, October, May |
| Peak season in Buenos Aires | September–November & March–May |
| Cheapest hotel months in Buenos Aires | June–August |
| Best time to book | 2 to 6 months ahead |
| Route info updated | October 16, 2026 |
September–November & March–May
Mild and pleasant
December–February
Hot and humid
June–August
Cool and grey
| Month | Fares from |
|---|---|
| January | $710 |
| February | $655 |
| March | $705 |
| April | $705 |
| May | $640 |
| June | $805 |
| July | $995 |
| August | $825 |
| September | $590 |
| October | $625 |
| November | $730 |
| December | $815 |
The cheapest fares we've tracked on this route include at least one stop. Ducoffs.com compares full-service and low-cost airlines flying between Chicago and Buenos Aires in a single search, including nonstop and one-stop options, so you can weigh price against total travel time.
Fares on this route tend to be lowest in September, October, and May. For the best selection, book about 2 to 6 months before departure and stay flexible by a day or two.
Chicago and Buenos Aires are about 5,619 miles apart. A nonstop flight takes roughly 11h 50m; connecting itineraries usually add 2 to 5 hours.
The best way to secure budget rates is by comparing multiple airlines simultaneously and checking flexible dates. Ducoffs.com scans available partner networks to bring you real-time pricing options.
Based on typical seasonal demand, September, October, and May tend to offer the lowest fares on this route, with estimated round-trip prices starting around $590. Live prices change daily, so run a search for your exact dates.
Chicago and Buenos Aires are about 5,619 miles apart. A nonstop flight takes roughly 11h 50m, while connecting itineraries usually add 2 to 5 hours depending on the layover.
The cheapest fares we've tracked recently on this route include at least one stop. Your live search shows any nonstop options available for your dates.
Hotel rates in Buenos Aires are usually lowest in June–August, when demand is quieter, and highest during peak season (September–November & March–May). Booking your flight and hotel together can save up to 30%.
This route arrives at Ministro Pistarini International Airport (EZE). Your search results also show nearby airports when they offer a cheaper or faster option.
For this route, booking about 2 to 6 months before departure usually gives the best balance of price and seat selection. Mid-week departures are often cheaper than weekend flights.
Yes. Bundling your travel components can save you up to 30% compared to booking flights and hotels separately, as airlines and properties offer exclusive package discounts.
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