AirHint found the following cheapest one-way flights from Washington (IAD) to Buenos Aires (AEP) in February 2026 (see full year).
One-Way flights
| 02 Feb | Frontier Airlines | ||
| 28 Feb | LATAM Airlines Group | ||
| 16 Feb | Frontier Airlines | ||
| 01 Feb | Avianca |
Also check the deals for return flights from Washington to Buenos Aires in February.
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The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.
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