Flights from Chicago to Buenos Aires
Compare 800+ airlines · Book direct · No Mubboo fees
From $967 · Prices update daily
We don't sell anything. We compare — you choose the best deal.
The quick answer
Flights from Chicago to Buenos Aires start around $967 round-trip. Main carrier: Frontier Airlines. Cheapest month to fly: August. Visa-free for US passport holders (Argentina).
Price calendar — next 60 days
★ Cheapest: $967 on Sat, Aug 8 · F9
Lowest return fares · Prices update daily · Final price confirmed at booking
Price calendar — Chicago to Buenos Aires
Month-by-month lowest fares. Green = cheapest dates.
Argentina essentials
🟢 Visa-free for US passport holders · up to 90 days
Full Buenos Aires visa guide →🆘 Emergency
911
💱 Currency
Argentine Peso ($)
🕐 Time zone
UTC−3
🗣️ Language
Spanish
🔌 Plugs
Type C/I · 220V
🚗 Driving
Right side
💡 Tipping
10%
📞 Dial code
+54
Entry rules can change — always confirm with official sources before booking.
Stay connected in Buenos Aires
Skip roaming fees — get a local eSIM before you land. Works in 200+ countries and activates instantly, so you’re online the moment you touch down.
Travel insurance
Protect your Chicago to Buenos Aires trip against delays, cancellations, and medical emergencies. US travelers can compare plans from top insurers.
Airport transfer in Buenos Aires
Pre-book your ride into Buenos Aires. Fixed price, meet & greet, and a driver waiting at arrivals — no meter anxiety after a long flight.
Flight delayed or cancelled?
If your Chicago to Buenos Aires flight was delayed more than 3 hours or cancelled, you may be entitled to up to €600 in compensation under EU/UK rules — even if you flew a non-EU airline. Free to check, no win no fee.
More resources
Chicago to Buenos Aires — frequently asked
How much is a flight from Chicago to Buenos Aires?+
Fares start around $967 round-trip. Prices update daily across 800+ airlines.
What is the cheapest month to fly Chicago to Buenos Aires?+
August typically has the lowest fares.
Are there direct flights from Chicago to Buenos Aires?+
This route is usually served by connecting flights. Use the search above to check for any direct options on your dates.
Which airlines fly from Chicago to Buenos Aires?+
Carriers on this route include Frontier Airlines. Compare them side by side in the search above.
Do US citizens need a visa for Argentina?+
Visa-free for US passport holders for stays up to 90 days.
What currency is used in Argentina?+
The Argentine Peso (ARS, $). The emergency number is 911.
Mubboo earns a commission when you book through our links. This does not affect the prices you see or our recommendations. Final prices are confirmed on the booking site.