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Flights from Chicago to Buenos Aires

Hi, I've summed up all the key info for Chicago to Buenos Aires flights

Cheapest one-way

$ 236
DM Airlines Mon, Oct 26

68% below next 30d avg. ($728)

Cheapest round-trip

$ 989
LATAM Airlines Fri, Sep 25

When to travel

December Cheapest month
July Peak month

Recommended airlines

With a lowest one-way fare of $236 , travelers can expect an average price of $728 for upcoming trips, while round-trip tickets start at $989 . You can arrive at any of the following airports in Buenos Aires: Ezeiza International Airport (EZE) , and Jorge Newbery Airport (AEP) . Flights from O'Hare International Airport to Ezeiza International Airport (ORD-EZE) are by far the most popular option for this route. To secure the best rates, booking 40 days in advance is recommended, and the cheapest travel days are Tuesday, Wednesday, and Saturday .

Updated 1d ago · This content is an AI-powered summary based on Trip.com data. Prices and availability are subject to change. Please refer to actual prices, availability, and travel conditions.

Explore the cheapest one-way and round-trip flights from Chicago to Buenos Aires over the next 90 days, with one-way fares from $236 and round-trip from $989. Based on Trip.com's latest 7-day flight data.

      • ORD 8:05 AM
        23h 40m
        1 stop
        EZE 9:45 AM
        Chicago - Buenos Aires | Fri, Sep 25 | LATAM Airlines
        EZE 2:45 AM
        21h 25m
        1 stop
        ORD 10:10 PM
        Buenos Aires - Chicago | Mon, Sep 28 | DM Airlines
        $989 $1,262
        22% off
        22% off
        $1,262 $989
      • MDW 11:35 AM
        20h 10m
        1 stop
        EZE 9:45 AM
        Chicago - Buenos Aires | Fri, Sep 11 | LATAM Airlines
        EZE 8:10 PM
        14h 26m
        1 stop
        ORD 8:36 AM
        Buenos Aires - Chicago | Sun, Sep 13 | LATAM Airlines
        $991 $1,262
        21% off
        21% off
        $1,262 $991
      • MDW 5:11 PM
        14h 34m
        1 stop
        EZE 9:45 AM
        Chicago - Buenos Aires | Thu, Sep 17 | Delta Air Lines
        EZE 8:10 PM
        15h 40m
        1 stop
        MDW 9:50 AM
        Buenos Aires - Chicago | Thu, Sep 24 | Delta Air Lines
        $994 $1,262
        21% off
        21% off
        $1,262 $994
      • ORD 6:25 PM
        13h 20m
        1 stop
        EZE 9:45 AM
        Chicago - Buenos Aires | Thu, Sep 17 | LATAM Airlines
        EZE 8:10 PM
        14h 25m
        1 stop
        ORD 8:35 AM
        Buenos Aires - Chicago | Thu, Sep 24 | LATAM Airlines
        $997
        21% off
        $1,262 $997
      • MDW 5:15 PM
        14h 30m
        1 stop
        EZE 9:45 AM
        Chicago - Buenos Aires | Wed, Oct 14 | LATAM Airlines
        EZE 2:45 AM
        21h 25m
        1 stop
        ORD 10:10 PM
        Buenos Aires - Chicago | Mon, Oct 19 | DM Airlines
        $1,002
        21% off
        $1,262 $1,002
      • ORD 8:01 AM
        14h 50m
        1 stop
        EZE 12:51 AM
        Chicago - Buenos Aires | Fri, Sep 11 | Copa Airlines
        EZE 8:59 AM
        18h 3m
        1 stop
        ORD 1:02 AM
        Buenos Aires - Chicago | Sun, Sep 13 | Copa Airlines
        $1,005
        20% off
        $1,262 $1,005
      • ORD 6:30 AM
        25h 15m
        1 stop
        EZE 9:45 AM
        Chicago - Buenos Aires | Wed, Oct 14 | Delta Air Lines
        EZE 2:45 AM
        21h 25m
        1 stop
        ORD 10:10 PM
        Buenos Aires - Chicago | Mon, Oct 19 | DM Airlines
        $1,023
        19% off
        $1,262 $1,023
      • ORD 6:40 AM
        25h 5m
        1 stop
        EZE 9:45 AM
        Chicago - Buenos Aires | Fri, Sep 25 | Delta Air Lines
        EZE 2:45 AM
        21h 25m
        1 stop
        ORD 10:10 PM
        Buenos Aires - Chicago | Mon, Sep 28 | DM Airlines
        $1,036
        18% off
        $1,262 $1,036
      • ORD 1:50 AM
        17h 35m
        1 stop
        EZE 9:25 PM
        Chicago - Buenos Aires | Thu, Sep 17 | Aeromexico
        EZE 8:10 PM
        15h 40m
        1 stop
        MDW 9:50 AM
        Buenos Aires - Chicago | Thu, Sep 24 | Delta Air Lines
        $1,058
        16% off
        $1,262 $1,058
      • ORD 8:01 AM
        17h 14m
        1 stop
        EZE 3:15 AM
        Chicago - Buenos Aires | Fri, Sep 25 | Copa Airlines
        EZE 2:45 AM
        21h 25m
        1 stop
        ORD 10:10 PM
        Buenos Aires - Chicago | Mon, Sep 28 | DM Airlines
        $1,060
        16% off
        $1,262 $1,060
      • CHI 1:00 PM
        17h 25m
        1 stop
        BUE 2:00 PM
        Chicago - Buenos Aires | Sat, Sep 12 | Normal Airline
        BUE 3:00 PM
        6h
        Nonstop
        CHI 4:00 PM
        Buenos Aires - Chicago | Mon, Sep 14 | Normal Airline
        Find more flights
        Find more flights
      • ORD 4:30 AM
        15h 35m
        1 stop
        EZE 10:05 PM
        Chicago - Buenos Aires | Mon, Oct 26 | DM Airlines
        $236 $516
        54% off
        54% off
        $516 $236
      • ORD 3:20 AM
        17h 45m
        1 stop
        EZE 12:05 AM
        Chicago - Buenos Aires | Mon, Nov 2 | DM Airlines
        $307 $516
        41% off
        41% off
        $516 $307
      • ORD 11:27 AM
        14h 18m
        1 stop
        EZE 3:45 AM
        Chicago - Buenos Aires | Sat, Sep 19 | DM Airlines
        $357 $516
        31% off
        31% off
        $516 $357
      • ORD 5:30 AM
        24h 45m
        1 stop
        EZE 8:15 AM
        Chicago - Buenos Aires | Mon, Sep 14 | DM Airlines
        $410
        21% off
        $516 $410
      • ORD 5:30 AM
        16h 35m
        1 stop
        EZE 12:05 AM
        Chicago - Buenos Aires | Mon, Oct 19 | DM Airlines
        $413
        20% off
        $516 $413
      • ORD 12:12 PM
        13h 58m
        1 stop
        EZE 4:10 AM
        Chicago - Buenos Aires | Sat, Oct 3 | DM Airlines
        $415
        20% off
        $516 $415
      • ORD 6:45 AM
        22h
        1 stop
        EZE 6:45 AM
        Chicago - Buenos Aires | Fri, Sep 11 | DM Airlines
        $416
        19% off
        $516 $416
      • ORD 6:45 AM
        34h 55m
        1 stop
        EZE 7:40 PM
        Chicago - Buenos Aires | Fri, Oct 9 | DM Airlines
        $419
        19% off
        $516 $419
      • ORD 11:27 AM
        14h 18m
        1 stop
        EZE 3:45 AM
        Chicago - Buenos Aires | Sat, Oct 31 | DM Airlines
        $433
        16% off
        $516 $433
      • CHI 1:00 PM
        17h 25m
        1 stop
        BUE 2:00 PM
        Chicago - Buenos Aires | Sat, Sep 12 | Normal Airline
        Find more flights
        Find more flights

Which airlines are the most popular for Chicago to Buenos Aires flights?

You can choose from 2 airlines that fly from Chicago to Buenos Aires, including American Airlines, DM Airlines, DM Airlines has lowest fares on this route.
American Airlines logo American Airlines
DM Airlines logo DM Airlines
Airlines are determined based on actual purchased flight tickets from Chicago to Buenos Aires according to previous 12 months data from Trip.com.

Flight Info | Chicago to Buenos Aires

The distance between Chicago and Buenos Aires is approximately 9,009.11 km. Based on Trip.com's data travel demand peaks in July. The off-season for travel is December.

Cheapest one-way flight price $236
Cheapest round-trip ticket price $989
Off-season for travel December
Peak season for travel July
Flight distance 9,009.11 km
Popular airline American Airlines
Flight statistics for the Chicago–Buenos Aires route are based on aggregated booking data from Trip.com over the past 12 months.

Frequently Asked Questions

  • What are the cheapest flights from Chicago to Buenos Aires (CHI-BUE)?

    Based on Trip.com data, DM Airlines offers one-way fares as low as $236 on Cheapest nonstop routes (e.g. ORD to EZE on Mon, Oct 26), while LATAM Airlines offers Cheapest nonstop round-trips from $989 departing on Fri, Sep 25 and returning on Mon, Sep 28.
  • At the moment, you can catch a nonstop flight from Chicago to Buenos Aires with the following airlines, including: American Airlines Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Chicago to Buenos Aires is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • To find best deals on flights from Chicago to Buenos Aires, you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Mon, Oct 26, with one-way flights priced at just $236.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is DM Airlines.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for Buenos Aires travel is around July.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Chicago to Buenos Aires is December, when demand for travel is lower.
  • After crunching the numbers on our September flight calendar, it's currently cheapest to fly from Chicago to Buenos Aires on September 14, 2026 with Arajet Airline, with prices starting at $221.
  • You can arrive at any of the following airports in Buenos Aires: Ezeiza International Airport (EZE), and Jorge Newbery Airport (AEP). Flights from O'Hare International Airport to Ezeiza International Airport (ORD-EZE) are by far the most popular option for this route.
  • The time difference between Buenos Aires and Chicago is 3h.
  • Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.
  • Based on Trip.com data for flights departing in the next 30 days, the average one-way fare from Chicago to Buenos Aires is $728. Fares vary by travel date, airline and availability.
  • Enter Chicago and Buenos Aires, choose your travel dates and passengers, then compare flights by price, duration and baggage. Select a fare, review the change and cancellation rules, enter traveler details and complete payment to receive your confirmation.
  • Arajet Airlineare the most popular budget airlines flying from Chicago to Buenos Aires. Check baggage, seat and payment fees before comparing the final price.

Explore More Popular Flights

Note: Prices shown on this page are estimated lowest price and include all taxes and fees found in the last 24 hours.

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Prices displayed in this page are all-inclusive prices (incl. taxes, fuel surcharge, civil aviation development fund, etc) with all fees confirmed before payment. Fees for luggage, meals, WLAN, or other additional services are also included as shown in the flight cards.

Real-time pricing updates

Prices, availability, and travel information on this page were updated within last 24 hours—even in real-time. The more popular the route, the more precise the data.

Change & Cancellation Policy

Trip.com displays flight cancellation and change policies for each flight ticket during the booking process, including fees and applicable conditions. Please check the following scenarios:
Voluntary cancellation/change:
To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy.
Cancellation/change due to a flight schedule change:
If the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.