AirHint found the following cheapest one-way flights from New York (LGA) to Porto (OPO) in March 2026 (see full year).
One-Way flights
| 14 Mar | Air France | ||
| 16 Mar | Spirit Airlines | ||
| 06 Mar | KLM | ||
| 22 Mar | KLM | ||
| 30 Mar | Air France | ||
| 09 Mar | United | ||
| 21 Mar | Delta |
Also check the deals for return flights from New York to Porto in March.
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