Cheap Flights from Rosario (ROS) to Buenos Aires (BUE)

Frequently Asked Questions

• What are the cheapest flights from Rosario to Buenos Aires (ROS-BUE)?

  Based on Trip.com data, Aerolineas Argentinas offers one-way fares as low as US$36 on Cheapest nonstop routes (e.g. ROS to AEP on Sun, May 17), while Aerolineas Argentinas offers Cheapest nonstop round-trips from US$62 departing on Mon, May 18 and returning on Thu, May 21.

• Which airlines offer direct flights from Rosario to Buenos Aires?

  At the moment, you can catch a nonstop flight from Rosario to Buenos Aires with the following airlines, including: Aerolineas Argentinas Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.

• How long is a flight from Rosario to Buenos Aires?

  It takes about 55 minutes to fly from Rosario to Buenos Aires.

• When is the best time to book flights from Rosario to Buenos Aires?

  By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Rosario 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.

• How many flights are there per week from Rosario to Buenos Aires?

  Based on Trip.com data in the past 4 weeks, there is 8 flight per week flying from Rosario to Buenos Aires. You can check the weekly schedule for popular airlines on this route below: Aerolineas Argentinas: S/M/T/W/T/F/S -- AR1709 (08:02)

• How can I find the best deals on flights from Rosario to Buenos Aires?

  To find best deals on flights from Rosario 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 Sun, May 17, with one-way flights priced at just US$36.
  · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Aerolineas Argentinas.
  · 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 December.
  · Get exclusive promo codes for Trip.com app users.

• When are flight tickets from Rosario (ROS) to Buenos Aires (BUE) the cheapest?

  The cheapest months to fly from Rosario to Buenos Aires is August, when demand for travel is lower.

• Which upcoming date is cheapest to fly from Rosario to Buenos Aires on?

  After crunching the numbers on our May flight calendar, it's currently cheapest to fly from Rosario to Buenos Aires on May 16, 2026 with Aerolineas Argentinas, with prices starting at US$31.

• Which airports can I fly to for Buenos Aires from Rosario?

  You can land at any one of the following hubs in Buenos Aires, with Rosario - Islas Malvinas International Airport to Jorge Newbery Airport (ROS-AEP) is by far the most common option on this route: Jorge Newbery Airport (AEP) Ezeiza International Airport (EZE).

• Is there any time difference between Rosario and Buenos Aires?

  The time difference between Buenos Aires and Rosario is 0h.

• How do I change or cancel my ticket from Rosario to Buenos Aires?

  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.