Cheapest€839.71
- LEVEL LE177306:1614h 50m21:06Barcelona GROBuenos Aires EZE
Door to door 18hCO2 1595.4 kgChanges 0Fixed, no changes
Barcelona to Buenos Aires flight
Flights from Barcelona to Buenos Aires start at €1,039.13 and take 17h 33m at their fastest.
The Flights from Barcelona to Buenos Aires starts at €1,039.13 and takes 17h 33m door to door, run by 2 operators over 10,780 km, with around 5 departures a day. Fares bottom out about 45 days before departure.
- 17h 33mDoor to door
- 14h 23mMoving
- €1,039.13From
- 1595.4 kgCO2
The cheapest and the fastest on September 28, 2026
Two journeys we can sell today, with the service number each operator files them under.
Fastest€1,045.03
- Iberia Airlines IA348806:5214h 23m21:15Barcelona REUBuenos Aires AEP
Door to door 17h 33mCO2 1595.4 kgChanges 0Fixed, no changes
Airlines
Speed, flexibility and what is on board. Nothing here is a rating, because we have not earned one.
| Operator | From | Fastest |
|---|---|---|
 Iberia Airlines | €885.73 | 17h 8m |
 LEVEL | €839.71 | 17h 5m |
Buenos Aires sits on the water, which usually settles which side of town you want to wake up on. Rooms are not ours to sell.
Where to stay in Buenos Aires
Sort by distance from Buenos Aires train station and you can see which places are ten minutes on foot and which are not.
Search Buenos Aires on Booking.com
Partner links. We do not sell accommodation. We earn a commission when a booking completes, and it never changes what you pay.
When to book Barcelona to Buenos Aires
The same search run across the whole booking window, so the shape of the curve is visible rather than described.
- €1,070.4090 days
- €703.7960 days
- €682.3445 days
- €701.6530 days
- €1,066.2721 days
- €1,458.0314 days
- €1,849.797 days
- €1,589.013 days
- €2,054.041 days
- Cheapest lead time
- Fares bottom out around 45 days ahead, at €682.34.
- How much it moves
- The gap between the cheapest and most expensive lead time is 201 percent. The most expensive point is €2,054.04, 1 days out.
- What that means
- Today sits inside the cheap window, which closes about 45 days before departure. Waiting from here has usually cost money on this corridor rather than saved it.
Which departure day costs least
Median cheapest fare for each weekday, taken across the next three weeks of real prices.
- €1,317.02Sun
- €1,001.89Mon
- €1,039.13Tue
- €1,084.56Wed
- €1,429.12Thu
- €1,305.22Fri
- €1,458.03Sat
Where you leave from and where you arrive
The stations, airports and ports each mode on this corridor actually uses.
Barcelona
Air
- BCN
- GRO
- REU
Buenos Aires
Air
- EZE
- AEP
What the journey actually looks like
Direct or connecting, how far the route really runs, and what happens when a connection is missed.
- Direct or connecting
- 50% of the services we sell on this corridor run through without a change. The remaining 50% involve one connection.
- How far it really runs
- The route covers 10,780 km against 10,466 km in a straight line, a detour of 3 percent. Track and road geometry account for the difference.
- Where the change is
- Connections are made at São Paulo, Madrid, Paris, Rome. The gap between arriving and leaving is 51 minutes, of which about 5 is walking.
- If the connection is missed
- The tightest connection we sell here has a 18 percent chance of not being made on the timetable alone. Part of this journey is a self transfer between separate tickets, so leave more time than the minimum and expect to check in again.
- First and last departure
- The first service of the day leaves Barcelona at 06:16 and the last at 14:39, across 5 departures. The return direction keeps its own timetable, so the times back are not these times reversed.
Questions about Barcelona to Buenos Aires
The questions people actually ask about this trip, answered from the same prices and times the page above is built on rather than written once and left to go stale.
How long does the Flight from Barcelona to Buenos Aires take?
The Flight from Barcelona to Buenos Aires takes 17h 33m door to door, of which 14h 23m is spent moving. The route runs 10,780 km. The difference between the two times is reaching the terminal and leaving it at the far end, which every time on this page includes.
How much does the Flight from Barcelona to Buenos Aires cost?
The Flight from Barcelona to Buenos Aires starts at €1,039.13 for one passenger, checked on September 12, 2026. A typical fare is €1,041.49. Both are the total including taxes, supplier fees and our service fee, so the price here is the price at checkout.
Who runs the Flight from Barcelona to Buenos Aires?
2 operators run the Flight from Barcelona to Buenos Aires: Iberia Airlines, LEVEL. Between them they file around 5 departures a day. The operator table on this page compares them on fare, journey time, cruising speed, fare conditions and what is provided on board.
Which terminal does the Flight from Barcelona to Buenos Aires use?
The Flight from Barcelona to Buenos Aires leaves from Barcelona REU and arrives at Buenos Aires AEP. Allow about 3h 10m for reaching the departure terminal and leaving the arrival one. That time is already inside every door to door figure quoted on this page.
When should I book the Flight from Barcelona to Buenos Aires?
Fares for the Flight from Barcelona to Buenos Aires bottom out around 45 days ahead, at €682.34. The gap between the cheapest and most expensive lead time across the window is 201 percent, measured on September 12, 2026. Booking inside the final week has consistently cost more.
How much CO2 does the Flight from Barcelona to Buenos Aires produce?
The Flight from Barcelona to Buenos Aires produces about 1595.4 kg of CO2 per passenger over 10780 km, which works out at roughly 148 grams per passenger kilometer. That figure is for the whole journey and for one traveler, not for the vehicle.
Where these numbers come from
Observed service A carrier record shows this named operator serving this named pair, and we carry that through unchanged.
Schedules, seat counts and fares are generated by our own model until the supplier contracts are signed. Places, coordinates, operators, which operator serves which pair, and every distance are real. We would rather say that on every page than let a modeled number pass for a filed one.
Defined in full at Door to door, Fares, The booking window, Carbon
- On this page
- Every figure above was computed for Barcelona to Buenos Aires on September 12, 2026: 10780 km of route against 10466 km in a straight line, 5 services a day, 2 operators, a cheapest fare of €1,039.13, and 17h 33m door to door on the fastest mode. The return direction is computed separately and its numbers are not these numbers.
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Buenos Aires is large, and the road in from EZE can take longer than the last hour of the flight. Cars are not our business.
Getting from EZE into Buenos Aires
Settled in advance, so the ride into Buenos Aires costs what it said it would rather than what the cab stand says.
Book a ride from EZE with Daytrip
Partner links. We do not operate transfers. We earn a commission on a booking, and the fare is the same as going direct.