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Cheap flights from Chicago to Buenos Aires

One-way from $389, found by travellers in the last 7 days. Aviasales checks the live price.

Departure
Return
Prices for nearby dates
Sat, Oct 17Any priceSun, Oct 18Any priceMon, Oct 19Any priceTue, Oct 20$389Wed, Oct 21Any priceThu, Oct 22Any priceFri, Oct 23Any priceSat, Oct 24Any price

Cheapest one-way tickets

Recent finds on different dates, for 1 adult. Baggage and fare rules are shown on Aviasales, where the price is checked live.

Cheapest
$389
Frontier Airlines, flight F9 2205Found 6 days ago, 1 adult
Check price on Aviasales
8:04amChicagoTue, Oct 20
Travel time 13h 44m, 2 stopsORDEZE
11:48pmBuenos AiresTue, Oct 20
$405
Frontier Airlines, flight F9 2292Found 2 days ago, 1 adult
Check price on Aviasales
6:08amChicagoFri, Nov 13
Travel time 14h 35m, 3 stopsMDWAEP
11:43pmBuenos AiresFri, Nov 13
$427
Frontier Airlines, flight F9 1596Found 2 days ago, 1 adult
Check price on Aviasales
6:00amChicagoTue, Jan 19
Travel time 14h 48m, 3 stopsORDAEP
11:48pmBuenos AiresTue, Jan 19
$461
Frontier Airlines, flight F9 1596Found 2 days ago, 1 adult
Check price on Aviasales
6:00amChicagoMon, Jan 18
Travel time 14h 43m, 3 stopsORDAEP
11:43pmBuenos AiresMon, Jan 18
$470
Arajet, flight DM 5421Found 3 days ago, 1 adult
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12:12pmChicagoSat, Oct 10
Travel time 12h 45m, 1 stopORDEZE
2:57amBuenos AiresSun, Oct 11

Round trips

The cheapest return tickets found recently, price for the whole trip.

Plan the rest of the trip

  • Mobile data in ArgentinaTravel eSIM from $5, installed before you fly.
    Compare plans
  • Getting from the airportTransfers and car hire in Buenos Aires, booked ahead at a fixed price.
    See options
  • Things to do in Buenos AiresPopular tours from $63 per person.
    See ideas
  • Travel insuranceTravel insurance quotes for Argentina from EKTA; check what each policy covers.
    Get a quote
  • Flight delayed?Delayed or cancelled? See which passenger rights cover this route.
    Check

Lowest fares by month

In the fares found this week, October has the lowest: from $389 one-way, against $491 in December. Pick a month to see its cheapest date.

$0$200$400$600$389OctNovDecJanFebMarAprMayJunJulAugSep
Show as a table
MonthCheapest one-wayDateStops
October$389Tue, Oct 202 stops
November$405Fri, Nov 133 stops
December$491Thu, Dec 313 stops
January 2027$427Tue, Jan 193 stops
February 2027—
March 2027—
April 2027—
May 2027—
June 2027—
July 2027—
August 2027—
September 2027—

Questions travellers ask

What is the cheapest month to fly from Chicago to Buenos Aires?

In the fares found this week, October has the lowest: from $389 one-way, against $491 in December.

Are there direct flights from Chicago to Buenos Aires?

None of the fares found recently are nonstop. The cheapest options have at least one stop.

More cheap flights from Chicago

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