Posadas to Buenos Aires flights
Routavio compares airline fares from several flight booking sites. The lowest one-way fare it found for Posadas to Buenos Aires is €31 (checked on 24 Oct 2026).
Your next trip, last seen at €31
Lowest observedWhen to fly
Explore datesMore dates worth a look
Find the dates that work for you
The lowest fare we observed for each month. Open a month to see its days, then pick your outbound and return. A day with no price is one we will search for you.
One-way fare
- Lowest observed
- €31, departing 17 Nov 2026 (Last checked: 24 Oct 2026)One-way fare · Priced departure days checked in the last 14 days: 186Check live prices for this route
- Airlines seen
- Aerolineas Argentinas, JetSmart
- Reported fastest flight
- 1h 35m
- Non-stop
- Yes
About this route
Explore the fares we observed from Posadas to Buenos Aires. Prices move often, so pick your dates to see the latest options.
- Route distance
- 839 km
- Reported fastest flight
- 1h 35m
- Alternative airports
- AEP
Route-level information; individual journeys vary.
Published schedules report non-stop service with Aerolineas Argentinas. Check current timetables.
A clearer picture of your fare
Non-stop airlines seen on this route
| Airline | Non-stop days / priced days | Fastest non-stop |
|---|---|---|
| JetSmart | 37 / 202 | |
| Aerolineas Argentinas | 29 / 202 |
Departure days with a non-stop fare checked in the last 14 days. A carrier listed here had a non-stop fare on at least 3 days; schedules may differ.
Airport to city: straight-line distance
- Aeroparque Jorge Newbery (AEP) → Buenos Aires, city gazetteer reference point (-34.6084, -58.3732): ≈ 7 km.
- Ezeiza International Airport - Ministro Pistarini (EZE) → Buenos Aires, city gazetteer reference point (-34.6084, -58.3732): ≈ 28 km.
Approximate distances calculated from coordinates, not road distances or travel times. These airports serve the city; they are not confirmed endpoints of an offer.
Lowest fare by departure month
Cheapest month from Posadas to Buenos Aires: November 2026, from €31 (checked 24 Oct 2026).
| Month | Lowest fare | Priced days |
|---|---|---|
| November 2026 | €31 | 17 |
| December 2026 | €31 | 31 |
| January 2027 | €31 | 31 |
| February 2027 | €31 | 28 |
| March 2027 | €48 | 31 |
| April 2027 | €48 | 30 |
| May 2027 | €48 | 18 |
Lowest fare by day of the week
Cheapest day of the week from Posadas to Buenos Aires: Monday, from €31 (checked 24 Oct 2026).
| Day | Lowest fare | Priced days |
|---|---|---|
| Monday | €31 | 27 |
| Tuesday | €31 | 27 |
| Wednesday | €31 | 26 |
| Thursday | €31 | 26 |
| Friday | €31 | 26 |
| Saturday | €31 | 27 |
| Sunday | €31 | 27 |
One-way fares checked in the last 14 days. Each figure is the lowest priced departure day we saw, not a guaranteed fare.
Lowest fare by days before departure
Lowest fare from Posadas to Buenos Aires by days until departure (8 to 30 days): €31 (checked 24 Oct 2026).
| Days before departure | Lowest fare | Priced days |
|---|---|---|
| 8 to 30 days | €31 | 15 |
| 31 to 60 days | €31 | 30 |
| 61 days or more | €31 | 141 |
One-way fares checked in the last 14 days. Each figure is the lowest stored fare for that distance to departure, not a price forecast.
Fares for different departure dates, checked now; not a guide to when to book.
Lowest one-way fare we saw per airline
Cheapest airline from Posadas to Buenos Aires: Aerolineas Argentinas, from €43 (checked 17 Oct 2026).
| Airline | Lowest fare | Priced days |
|---|---|---|
| Aerolineas Argentinas | €43Nov 24, 2026 | 29 |
| JetSmart | €44Nov 3, 2026 | 37 |
One-way fares checked in the last 14 days. An airline listed here had a fare on at least 3 departure days. Each figure is the lowest we saw, not a guaranteed fare. Connecting itineraries are included; the date is the departure day of that fare.
Frequently asked
How much is a flight from Posadas to Buenos Aires?
The lowest fare Routavio has observed is €31, found on 24 Oct 2026. Prices move, so read it as a floor rather than a quote.
When is the cheapest month to fly from Posadas to Buenos Aires?
Cheapest month from Posadas to Buenos Aires: November 2026, from €31 (checked 24 Oct 2026).
Are there direct flights from Posadas to Buenos Aires?
Yes. Published schedules report non-stop flights on this route with Aerolineas Argentinas.
Which airlines fly from Posadas to Buenos Aires?
Routavio has seen these carriers on the route: Aerolineas Argentinas, JetSmart.
How long does the flight from Posadas to Buenos Aires take?
Across the 22 fares Routavio observed, the average journey time is 1h 38m, including any stops. Individual departures vary; the fastest observed flight is listed in the route facts above.
How many of the observed Posadas to Buenos Aires fares were non-stop?
22 of the 22 fares we observed were non-stop; the rest included at least one stop. That describes our observations, not every flight that operates.
Which airlines had non-stop offers on at least 3 departure dates from Posadas to Buenos Aires?
For Posadas to Buenos Aires, examples of observed one-way non-stop offers checked within the last 14 days: JetSmart (37), Aerolineas Argentinas (29). Each number counts distinct departure dates, not weekly flights; check current availability in search.
Which day of the week is cheapest from Posadas to Buenos Aires?
Cheapest day of the week from Posadas to Buenos Aires: Monday, from €31 (checked 24 Oct 2026).
Which airline has the lowest fare from Posadas to Buenos Aires?
Cheapest airline from Posadas to Buenos Aires: Aerolineas Argentinas, from €43 (checked 17 Oct 2026).
How observed prices work, what "No data" means and what a fare includes: Read the flight price guide
Keep exploring
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Recently observed fares. Prices may change.
Last checked: 24 Oct 2026