Cheap flights from Chicago to Buenos Aires
The lowest fare found is €410. The cheapest month to fly is October.
Search live pricesSearch round-trip pricesLowest price by month
| October | €410 |
| November | €435 |
| April | €443 |
When is the cheapest time to fly from Chicago to Buenos Aires?
Fares are typically lowest in October, starting from €410.
Popular routes
- Chicago → Buenos Aires Aeroparque
- Chicago → Quito
- Chicago → Guayaquil
- Chicago → Montevideo
- Chicago → Asuncion
- Chicago → Caracas
- Chicago → Panama City
- Chicago → San Jose CR
- Chicago → Guatemala City
- Chicago → San Salvador
- Chicago → Atlanta
- Chicago → Dubai
Prices updated 2026-09-08