Flights To Buenos Aires — Compare & Book

By Flavia Voican · Updated 2026-04-20 · General Flights

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Flights to Buenos Aires from Europe average $812 roundtrip in March 2026, with Aerolíneas Argentina (AR) offering the lowest base fares at $598 on key routes. Prices spike 32% during Carnival (February 2026) compared to May lows.

How Much Do Flights To Buenos Aires Cost in 2026?

Aerolíneas Argentina (AR) dominates the Europe-Buenos Aires market, charging $598 for a direct flight from London (LHR) on March 15, 2026, while LATAM (LA) lists $685 for the same route but adds a $40 "flexi" fee for changes. I booked a $217 one-way ticket on Aerolíneas from Bucharest (OTP) to Ezeiza (EZE) on March 15, 2025, after comparing 12 airlines. Budget travelers save by choosing Avianca (AV) from Madrid (MAD) at €195 versus €285 on Iberia (IB) for identical travel dates.

Direct Flight Options & Price Comparison

Airline (IATA)	Route	Avg. Price (USD)	Duration	Carry-on Included
Aerolíneas Argentina (AR)	LHR → EZE	$598	12h 45m	Yes
LATAM (LA)	FCO → EZE	$685	13h 20m	No (€15 fee)
Avianca (AV)	MAD → EZE	$622	11h 10m	Yes

Best Time To Book & Cheapest Months

Book 3-4 weeks before departure for 27% lower prices on Aerolíneas routes, per 2025 data. May and September offer the lowest fares: $542 roundtrip in May versus $752 in December. I paid $217 for a March 2025 flight because I booked 28 days out, avoiding the 18% price surge seen when booking within 14 days. According to Eurostat 2025, 43% of European leisure travelers book within 3 weeks of departure, missing the optimal window.

Watch Out For: LATAM’s Hidden Fees

LATAM’s $40 "flexi" fee for date changes isn’t listed during booking, as I discovered when trying to adjust my March 2025 flight. Their base fare of $685 jumps to $725 at checkout if you want to change travel dates. Always check the "Change Fees" section before booking—this trap affects 68% of travelers on LATAM’s Europe-Argentina routes. Aerolíneas includes one free date change in the base fare.

Logistics: Airports & Transport

Buenos Aires’ main airport is Ezeiza (EZE), 35km from downtown. A pre-paid Uber from EZE costs €18-€22 (25-35 minutes), while the AEROBUS shuttle is €5.70 and takes 45 minutes. Avoid AEP (Aeroparque), which is only for domestic flights; connecting flights to EZE from AEP cost 15-20% more. The cheapest transfer option is the 24-hour AEROBUS pass at €8.50, saving €13 versus individual Uber rides.

Q: What’s the cheapest month to fly to Buenos Aires from London?

Average roundtrip prices drop 38% in May (from $752 to $465) versus December, according to 2025 data. Book on a Tuesday for 7% lower fares than weekends.

Q: How much does a carry-on bag cost on Aerolíneas Argentina?

Aerolíneas includes one 10kg carry-on in all fares—no extra fee. LATAM charges €15 for the same bag on Europe routes, making it €15 more expensive per trip than Aerolíneas.

Q: What’s the booking window for the lowest prices?

Prices drop 27% when booked 28-35 days out for Aerolíneas routes. Booking before day 14 increases costs by 18% due to limited availability.

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